Northwestern University Library Evanston, Illinois 60201 CONNECTICUT GROUND WATER SURVEY A PROJECT OF THE WORKS PROGRESS ADMINISTRATION THE ^ALINITY OF THE CONNECTICUT RIVER / OCTOBER I, 1934 TO SEPTEMBER 30, 1937 Bulletin S-1 Part I ISSUED BY THE WORKS PROGRESS ADMINISTRATION FOR CONNECTICUT ^ OFFICIAL PROJECT 665-15-3-116 IN COOPERATION WITH THE CONNECTICUT STATE WATER COMMISSION, SPONSOR PREPARED UNDER DIRECTION OF THE GEOLOGICAL SURVEY UNITED STATES DEPARTMENT OF THE INTERIOR HARTFORD. CONNECTICUT OCTOBER 1938 CONNECTICUT GROUND WATER SURVEY ERRATA for Bulletin S-l, I, II, III "The Salinity of the Connecticut River October 1, 1934 to September 30, 1937" Part I Page Line In place cf original text Read corrected text I 5 acknowledgements acknowledgments 1 33 supervisied supervised 2 40 advifllstrative administrative 5 Map (Sections from G, SD, S, P G, SD, P, S Long Island Sound) 9 Map (Lower right Pierion's Dock Persson's Dock hand corner) 12 25 500 ft. west of ], 550 ft. west of east shore 325 ft. west of 1, 375 ft. west of east shore 12 26 500 ft. west of I, 1050 ft. west of east shore 325 ft. west of 2, 700 ft. west of east shore 12 27 500 ft. west of 50 ft. east of west shore 325 ft. west of 3, 50 ft. east of west shore 38 5 yearly daily 40 27 nor not 44 44 rurns turns Part 58 II Footnote "Person*s Dock" "Persson's Dock Part 195 Til Footnote "Perrson's Dock" "Persson's Dock PART I TABLE OF CONTENTS Page Introduction General Statement ...................................... 1 Acknowledgements .............. .............. ......... 2 Previous Investigations ............................... 3 Summary of Work ........ 3 Sampling Stations and Sections 4 Section A 4 Section B 11 Section C ...................................... 11 Section D •..................................... 11 Section E 12 Section H 12 Section J ...................................... 12 Section R ........ 12 Section T 13 Section W ...................................... 13 Section K 13 Section L .......................... 14 Section! ............................... 14 Section N 14 Sections ...................................... 14 Section P 15 Section SD 15 Section G 15 Middletown Bridge 15 East Haddam Bridge ............................. 16 Saybrook Highway Bridge ........................ 16 Field Work .................................................. 17 Equipment 17 Sampling Procedure • •. 18 Bridges 19 Boats 19 Shore Sampling 20 Table of time intervals for tides ............ 21 Table of time intervals for slack water ...... 22 Schedule for Observor ........................ 23 Work and time schedule ....................... 29 Sample logs 25 Regular study............................ 25 Bridges 26 West Shore Sampling ..................... 27 Special study 100 28 Special study, Saybrook Highway bridge... 29 II TABLE OF CONTENTS - Continuod Page Field Yfork (cont.) Speoial Studies 30 Navigation by F. W. Carter, Foreman of River Division... 32 Section N 33 Section M * 33 Section L 33 Seotion K 33 Section W 33 Section T 34 Section R ...... 34 Section J 34 Section H 34 Section E 34 Section D 34 Section C «... ....•• 35 Section B 35 Section A 35 Laboratory Procedure 36 General Statement of Chloride Intrusion 38 Factors affecting salinity 40 Tides and Currents 40 Discharge and slack water 42 Winds and weather «.•••••«.. 43 Other factors 45 River boats 45 Obstructions ................. 45 Dredging 45 Variations in Chloride Distribution 46 General Summary 70 Middletown Highway Bridge 70 East Haddam Bridge 70 Saybrook Highway Bridge 73 Ill PART I LIST OF ILLUSTRATIONS Page Connecticut River feelow East Haddam Bridge..... •••«.••• 5 Sampling Sections and Stations • ••• 6 East Haddam Bridge 6 Section A 6 Section B 6 Section C 6 Section D 7 Section E 7 Section H 7 Section J 7 Section R 8 Section T 8 Section W 8 Section K 8 Section L 9 Section M ................ ...... 9 Section N 9 Saybrook Highway Bridge 9 Sections .......... 10 Section P 10 Section SD 10 Section G 10 Connecticut River below East Haddam Bridge (Chloride concentration) October 13, 1935 and June 19, 1936 71 Connecticut River below East Haddam Bridge (Chloride concentration) August 9, 1936 and April 13, 1937 72 1 The Salinity of tho Connecticut River October 1, 1934 to September 30, 1937 Part I INTRODUCTION The study of sea-water penetration into the tidal estuary of the Connecticut river has been carried on continuously since October 1934. The general purpose of such a study is to ex¬ amine the nature and extent of saline intrusion into the river. The study necessarily includes the observation and recording of numerous factors which might have an effect on the intrusion. This water resource investigation, representing a part of the State's program of long-rango hydrologic studies, was undertaken as a part of the Federal work program at the suggestion of Gen¬ eral Sanford H. Wadhams, Director of the Connecticut State Water Commission. The investigation has been facilitated by close cooperation between the various agencies interested in the problem of sea-water penetration into tidal streams. The exten¬ sive data so far obtained is of value to the citizens and in¬ dustries of the lower Connecticut valley and also to those agen¬ cies of the State and Federal Government that are directly or indirectly concerned with water resources. The Connecticut Ground Water Survey, operated as "Works Progress Administration Official Project 665-15-3-116, is sponsored by the Connecticut State Water Commission, which has directed its activities since the inception of the project. Under a cooperative agreement, technical direction of the work was furnished by the Geological Survey, U. S. Department of the Interior. The Ground 'Water Survey, started by the Connecticut State Emergency Relief Commission on October 1, 1934 as a Federal Emergency Relief Administration project, has been operated since November 22, 1935 by the Division of "Women's and Professional Projects of the Works Progress Admini¬ stration for Connecticut, as Official Projects 65-15-861, 465-15-3-26 and 665-15-3-116. The Connecticut State Planning Board, in cooperation with the Stato "Water Commission, sponsorod the project until July 1, 1937, when sponsorship was assumed by the State Water Com¬ mission. William H. Brothwell, Project Supervisor for tho Works Progress Administration, also supervisied tho earlier work performed under the State Emergency Relief Commission; and has been in charge of the Sponsor's program throughout. It is not practical to include all the data obtained by the Survey in this report. Copies of complete data are filed at the offices of the State Water Commission and the Geological Survey. 2 This report inoludes general statements as to the soope and. nature of the work, methods, and a general dlaoussion. Part I inoludes the text of the report and Parts II and III oontain, in tabulated form, oomplete data obtained at Saybrook Highway bridge. The salinity studies were planned and oarried out under the technioal direction of Mr# C. S. Howard of the Geological Survey, United States Department of the Interior. Mr. Brothwell was in charge of the personnel and facilities and coordinated the var¬ ious parts of the work. Mr. Robert M. Robertson was in direct charge of field operations until March 1935, when he was succeeded by Mr- Edwin J. Greone. Mr. Greene remained in charge of tho field work until July 1937, when he was succeeded by Mr. Fred W. Carter. Tho laboratory work, since October 1934, has been under the direct supervision of Mr. Arthur McDonald, with Dr. C. R. Hoover of Wesleyan University acting in an advisory capacity. The work of laying out the details of the sampling program and of recording and plotting of data was in charge of Mr* Samuel G. Tuell until November 1936, when he was succeeded *>y Mr. Greene. Mr. Frank B, Rau, succeeding Mr. Greene, has been in direct charge of the office studies since July 1937. Field and Office studies have been under the general supervision of Mr. Russell M. Logie since July 1937. The material included in Part I of this report was prepared by Mr. Logie and Mr. Rau. The tabulations included in Parts II and III were prepared under the direct supervision of Mr. Rau. Stencilling, reproduction, and assembly of the re¬ port were in charge of Mr. Winthrop E. Danielson. Acknowledgment s The assistance of the administrative and engineering staff of the Connecticut State Water Commission is gratefully acknowledged. Laboratory facilities were made available to the Survey at the Hall Chemistry Laboratory of vfesleyan University, Middletown, Connecticut, through the State Water Commission. The cooperation of Dr. Hoover and of Yifesleyan University is gratefully acknowledged. Space for field headquarters was made available through the courtesy of Mr. F, W. Carter. The assistance of the State Highway Department has been greatly appreciated. The continued interest and helpful cooperation of Miss Mary M. Hughart, Director of the Division of Women's and Professional Projects, and Mr. Charles G. Hutzler and Mr. Paul F. Kane of the advinistrative staff of the Works Progress Administration in the work of the project is gratefully acknowledged. The field men constructed needed equipment and collected and trans¬ ported samples even under the most adverse weather conditions. 3 Previous Investigations No similar investigation of saline intrusion in the lower Connecticut river has been previously attempted. SUMMARY OF WORK, 1934-1937 Approximately 159,000 samples of river water, obtained from 76 stations at 21 sections on the lower Connecticut rivor, have been taken during the three years covered by this report# Several types of sampling programs, each designed to develop somo specific data, were devised and used at various times during the three years. The general program and schedule of work were planned in Hartford. Detailed work schedules and stations to be sampled were drawn up in the field as river conditions warranted, The close cooperation between the laboratory and sampling crew, made it possible to main¬ tain a high degree of flexibility in the field work. This flexibility was necessary in securing adequate results under all kinds of weather conditions and during the changing seasons. Sampling from boats gave better results than shore sampling but the former could not be carried on continuously. Sampling from bridges was carried on throughout the year. Shore sampling was carried on during winter months and freshet periods. It became necessary to discontinue boat work in July, 1937 and since that time samples have been taken from the bridges and shore stations. The samples were transported to the laboratory at two to three day intervals for testing for chloride. The results of the tests are sent to Hartford where they are studied in relation to all the factors that may enter the problem. 4 SAMPLING SECTIONS AND STATIONS Sampling stations wore ostabliahod on the Middlatown Highway bridge, East Haddam bridgo and Suybrook Highway bridge in October, 1934. Four stations woro sot on the Middlotown bridgo, four on tho East Haddam bridge, and fivo on tho Saybrook Highway bridgo* These were numbered from east to west on each bridge starting with Station 0 on the Midd'letown bridge and ending with Station 12 on the Saybrook Highway bridge. The locations of ten river crossings for sampling from boats were established during October 1934 and wore designated as Sections A, B, C, D, E, J, K, L, M, and N. The first crossing, Section A, was located approximately one mile south of East Haddam bridge, and the last crossing, Section N, approximately 0.7 mile north of the Saybrook Highway bridge, Sampling operations began Novombor, 1934 at these sections. The samples wore taken from boats at sampling stations designated as A-l, A~2, B-l, B-2, etc. A short period of sampling showed that Sections A and B were well above the head of the saline intrusion. It appeared that the critical area was located between Sections D and L» Accordingly, four new sections were established; Section II was established be¬ tween Sections E and J, and Sections R, T, and W between Sections J and K. It became evident that it was desirable to obtain samples be¬ low Saybrook Highway bridge during December, 1935 and January, 1936. Only shore samples could be collected during the winter and only at a point just above the New York, New Haven and Hartford Railroad bridge at Old Saybrook could they be taken on both sides of the river. This point was established January 15, 1936 as Section S« On March 1, 1936 a sampling station was established at Saybrook Point on Saybrook dock on the west shore of the river. This was designated as Section SD. During the period of the flood of March, 1936, two more sections were added; P, between S and SD, and G, at the Saybrook light at the mouth of the river. Sampling commenced at theso sta¬ tions March 14, 1936. Operations have beon carried on at the sec¬ tions below Saybrook Highway bridge only during periods of high river discharge. The locations of the sampling points below the East Haddam bridge are shown on the maps and charts on tho following pages. Tho descriptions of the locations of tho sections and sampling stations are given below. Section A A straight line from Eddy Rock light on the west shore across the northern tip of the island lying between Lord's Island and the east shore to the east shore, approximately 14.5 miles above the mouth of the river. CONNECTICUT RIVER BELOW EAST HAOOAM BRIDGE SCALE—MILES •01 234 I ' » ' ' 1 * « 1 ' I I I I I CONN.GROUND-WATER SURVEY: W P.A. NO. 2981 SPONSORSHIP CONN.STATE WATER COMM. ERECTION :GEOL.SURV. U-S.DEPT. INTERIOR 6 7 8 SECTION L SECTION M SAYBROOK LYME 10 11 Stations 1 - approximately 200 feet west of east shore. 2 - 600 feet west of east ahoro, 400 feot west of 1. 3 - 400 feet»west of 2, 1000 feet waat of east shoro. 4 - 400 feet west of 3, 1400 foot wout of east ahoro. 5 - 725 feet west of 4, 200 foot east of west shoro. Shore Stations AW - wost shore on sootion. AE - oast shore on sootion. Section B A straight line from a United States Coast & Geodetic Survey marker, 50 feet below the lower entrance to Chapman Pond on the east shore, to a lone pine on the west shore, approximately 13 miles above the mouth of the river. Stations 1 - approximately 75 feet west of east shore. 2 - 225 feet west of 1, 300 feet west of east shore. 3 - 225 feet west of 2, 525 feet west of east shore. 4 - 225 feet west of 3, 125 feet east of west shore. Shore Stations BW - west shore on section. no station on east shore. Section C A straight line from the most southerly of two range lights 50 feet apart south of Hadlymo ferry dock on east shore to a large oak tree between two groups of small trees, approximately 12 miles above the mouth of the river. Stations 1 - approximately 50 feot west of the east shore. 2 - 400 feet west of 1, 450 feet west of east shore. 3 - 400 feet west of 2, 850 feet west of east shore. 4 - 400 feet west of 3, 150 feet east of west shore. Shore Stations CW - 1250 feet north of section on Ferry dock in Chester, west shore. CE - 1250 feet north of section on ferry dock at Hadlyme, east shore. Section D A straight line from the center of a large rock cliff on the east shore to the Trade School building at Deep Rivor, situated on a hill on the west shore, approximately 11 miles abovo the mouth of the river. Stations 1-50 feet west of the east shore. 2 - 625 feet west of 1, 675 feet west of east shore. 3 - 625 feet west of 2, 1300 feet west of east shore. 4 - 625 feet west of 3, 1925 feet west of east shore. 5 - 625 feet west of 4, 50 feet east of west shore. 12 Shore Stations DW - 1650 foet south of seotion on Doop River dock, west shore. DE - 2650 foet north of sootion, 20 foot'out in river, just north of mouth of Soldon Creek, oast shore. Seotion E A straight line across the river from a red and black channel buoy near the west shore to red ohannel buoy 14 near the east shore, approximately 10 miles above the mouth of the river. Stations 1 - approximately 50 feet west of the east shore. 2 - 500 feet west of 1, 550 feet west of oast shore. 3 - 500 feet west of 2, 1050 foot west of east shore. 4 - 500 foet west of 3, 50 foet east of west shoro. Shore Stations EW - on lino of section on west shore 20 feet from west bank of river. no station on east shore. Seotion H. A straight line from two large trees on the east shore on Selden Neck to a United States Coast & Geodetic Survey marker on the west shore, approximately 9.5 miles above the mouth of the river. Stations 1 - approximately 50 feet west of east shore. 2 - 500 feet west of 1, 550 feet west of east shore. 3 - 500 feet west of 2, 1050 feet, west of east shore. 4 - 500 feet west of 3, 50 feet east of west shore. Shore Stations HW - On line of section off rock with United States Coast & Geodetic Survey marker, no station on east shore Section J A straight line from the center of a smooth rock cliff on the east shore to the center of a small cottage on the west shore, approximately 8.75 miles above the mouth of the river. Stations 1 - approximately 50 feet west of the east shore. 2 - 425 feet west of 1, 475 feet west of east shore. 3 - 425 feet west of 2, 900 feet west of east shore. 4 - 425 feet west of 3, 50 feet east of west shore. Shore Stations JIT - on line of section, 20 foot from west bank. JE - off rock, 50 foet south of lino of section, oast shore. Section R A straight lino from the contor of a white house on a hill on the east shore to a long dock owned by Dr. Hall on the west shore, approximately 8.25 miles above the mouth of the river. 13 Stations 1 - approximately 50 feet west of east shore. £ - 700 feet west of 1, 750 feet west of east shore. 3 - 700 feet west of 2, 1460 feet west of east shore. 4 - 700 feet west of 3, 2150 foot west of east shore. 5 - 700 feet west of 4, 50 foot east of west ehoro. Shore Stations HW - on line of section, off Dr. Hall's dook, west shore. Dock destroyed, flood of March, 1936. RE - 300 feet north of lino'of seotion, 20 foot out from east shoro. Section T A straight line from the center of Joshua Rock on the east shore to the center of a surimior cottage owned by Sealey on the west shore, approximately 7.75 miles above the mouth of the river. Stations 1 - approximately 50 feot west of east shore. 2 - 750 feot west of 1, 800 feet west of east shore. 3 - 750 feet west of 2, 1550 feet west of east shore. 4 - 750 feet west of 3, 50 feet, east of west shore. Shore Stations TW - on line of section, 20 feet out in river from west shore, no station on east shore. Section W A straight line from a gravel bank on the east shore approx¬ imately 250 feet south of buoy 12A at entrance of Hamburg Cove across the southern extremity of Brockway's Island to a stunted pine with two brances pointing in a southerly direction on the west shore, approximately 7.37 miles above the mouth of the river. Stations 1 - approximately 200 feet west of the east shore. 2 - 500 feet west of 1, 700 feet west of east shore. 3 - 1000 feet west of 2, 800 feet east of west shore. 4 - 750 feet west of 3, 50 feet east of west shore. Shore Stations WW - on line of section, 10 feet out in river from west shore. WE - on line of section, 10 feet out in river from oast shore. Section K A straight line from a United States Coast & Geodetic Survey monument 100 feet north of Ely's wharf on the east shore to a lone stunted pine at a creek on the west shore, approximately 6.75 miles above the mouth of the river. Stations 1 - approximately 50 foot west of the oast shore. 2 - 200 feot west of 1, 250 feet west of oast shoro. 3 - 200 feet wost of 2, 450 foot west of oast shore. 4 - 200 feet west of 3, 50 feet east of west shore. 14 Shore Stations KW - on line of section, 10 feet out in river from west bank. KE - dock 425 feet south of section, east shore. Section L A straight line from a stono jetty in front of a rod barn on Nott's Island on oast shore to a small aluminum painted Texas Oil Company tank on the wharf at the foot of Main Street, Essex, on west shore, approximately 6 miles above the mouth of the river. Stations 1 - approximately 275 feet west of the east shore. 2 - 600 feet west of 1, 875 feet west of the east shore. 3 - 600 feet west of 2, 1475 feet west of east shore. 4 - 600 feet west of 3, 2075 feet west of east shore. 5 - 600 feet west of 4, 50 foot east of west shoro. Shore Stations LW - Parmalee's Dock, 30 feet north of the lino of section on west shore. LBW - Southeast end of Essex Paint and Marine Company dock, approximately 450 feet south of the line of section on the west shore# no station on east shore. Section M A straight line from the center of a sunken barge on the east shore to a stone pier in front of a white house on the west shore, approximately 5 miles above the mouth of the river. Stations 1 - approximately 50 feet west of barge on east shore. 2 - 450 feet west of 1, 500 feet west of east shore. 3 - 450 feet west of 2, 950 feet west of east shore# 4 - 450 feet west of 3, 50 feet east of pier on west shore. Shore Stations MW - dock, on line of section on west shore, no station on east shoro. Section N A straight line from the center of Burt's cottage on the east shore through a stone beacon to a lone pine on a hill on the west shore, approximately 4 miles above the mouth of the river. Stations 1 - approximately 150 feet west of stone beacon near east shore. 2 - 525 feet west of 1, 675 feet west of east shore. 3 - 425 feet west of 2, 1100 feet west of east shore. 4 - 900 feet west of 3, 500 feet east of west shore. Shore Stations NE - off dock, on line of section, east shore# no station on vrest shore. Section S A straight line from a dirt pier on the east shore to an old dock on the west shore. A line roughly parallod to and just north 15 of the Now York, New Haven and Hartford Railroad bridgo at Old Saybrook, approximately 2.7 milos above the mouth of the rivor. Stations 1 - approximately 1200 foot oast of old dock on wost shore. 2 - approximately 570 foot east of old dook on west shore. Shore Stations SW - off old dook, on line of section, west chore, SE - off dirt pier, on line of section, east shore. Section P A straight line from the northerly tip of Great Island on the east shore to a largo rock on the west shore, approximately 1.8 miles above the mouth of the rivor. Stations 1 - approximately 2500 foot cast of wost shore, 2 - approximately 1850 foot oast of wost shoro. Shore Stations No shore stations. Section SD A straight line from a point a short distance north of the southerly tip of Great Island on the east shore west to Saybrook dock on the west shore, approximately 0.95 miles above tho mouth of the rivor. Stations 1 - approximately 875 foot oast of Saybrook Dock, wost shore, 2 - approximately 240 foot oast of Saybrook Dock, wost shoro. Shore Stations SBW - off Saybrook Dock, on lino of section, wost shore, no station on east shore. Section G A straight line from Linde Point light on the west shore east- early through the channel buoy at the mouth of the river. Stations 1 - approximately 650 feet east of west bank and near channel buoy. 2 - approximately 525 feet oast of west bank near west side of ship channel. Shoro Stations GW - off breakwater, west shore, 600 feet south of lino of section, no station on east shore. Middletown Highway Bridge The sampling stations wero established along the north bridge rail, and numbered from east to wost. Stations 0 - 125 feet west of oast end of north truss. 1 - 136.16 feet west of 0, 1A - 90.08 feet west of 1. 2 - 143 feet west of 1A. 16 2A - 34.58 feat west of 2. 3 - 472 feet wost of 2A,140.6 foot oast of wost end of jaorth truss. East Haddam Bridgo The sampling stations were established along the south bridge rail, and numbered from east to west. Water level measuring point, 65.41 feet west of a point on east abutment at the end of the bridge deck. Stations 4 - 160.5 feet west of the East abutment. 5 - 131.16 feet west of 4. 6 - 146.33 feet wost of 5. 7 - 200.08 foet wost of 6. Saybrook Highway Bridge The sampling stations were established along the south bridge rail, and numberod from east to wost. Stations 8 - 205.08 feet west of south point of east abutment. 9 - 349.41 feet west of 8. 10 - 385.66 feet west of 9. 11 - 305.16 feet west of 10, 12 - 366.5 feet west of 11, 184.16 feet east of south point of west abutment. 17 FIELD WORK Equipment The samples wore taken by using samplers which permitted open¬ ing the bottles at the dosirod depth. There wore two main typos of samplers used. One was arranged for taking several samples at the same time. This oonsisted of a pole of the desired length with supports and clips for holding tho bottles. The corks were removed from all the bottles at one time by means of a stout cord running through eyelets on the pole. The other sampler was a brass bottle holder which had lever arms for removing the cork when tho arms were struck by a go-devil dropped down tho cable. Tho polo samplers were constructed by men of river crow. The brass samplers wore furnished by tho Geological Survey, United States Dopartment of Interior. The cables for the brass samplers were wound only on small spools at first and the oable was not wound on the spool between stations. This practice created traffic problems on the bridges and the cables became kinked making them liable to break and ob¬ structing the passage of the go-devil. Several methods of over¬ coming the difficulty were tried but finally a reel was constructed which proved satisfactory. A reel for bridge work had to bo strong and, at the same time, light end efficient. It had to bo balanced in such a way that it could bo hold over a bridge railing Trithout strain on the operator. The reel was constructed so that one turn payed out two feet of cable making it easy to determine the proper point for taking samples. The spool of the reel was held in place by inserting a pin through the flange. The go-devil was released by a wire lever device so that the operator did not have to change position while taking the samples. A small reel was built for taking surface samples which helped speed up the work, particularly when two mon crews were used. One of the first reels built proved too bulky for bridge work and was modified for boat work. It was constructed of galvanized iron pipe with a metal spool. This reel was fastened to the seat of the boat with a curved arm reaching over the side permitting the cable to run freely. The lack of suitable reels or other devices make boat work difficult at tho start. Some measurements of water level were made at Middletown High¬ way, East Haddam and Saybrook Highway bridges. For this purpose a cable fitted with metal hooks at the 35 foot and 25 foot marks was devised. The tape was attached to the 35 foot mark for Saybrook Highway bridge measurements, and at the 25 foot mark for the meas¬ urements at the other bridges. There was a white painted 18 weight at the end of the tape# It was found that a so-oallod "harpoon" boat with flaros in front and equipped with an eight horeo-powor outboard motor was the most suitable type for most of the work on tho rivor. However, a 22 foot boat with on inboard motor is best for rough conditions. The standard equipment suoh as fire extinguishers, searchlights, and life-preservers was furnished by the boat vendors# "Go Slow" signs and red lanterns were used on the Saybrook Highway bridge particularly during the summer months when traffic was very heavy. The men working on East Haddam bridge were pro¬ tected to some extent by tho nature of the bridge construction. The reels, pole samplers and other devices were constructed by the field men who exercised much ingenuity in adapting scrap materials for the work. Sampling Procedure The schedule of sampling was at first laid out in the field but owing to the fact that the men were not experienced and had little time to devote to planning a schedule this procedure was changed. The operating schedule was planned in the office for one to two weeks in advance of the actual work with allowance for nec¬ essary changes in the field. This was continued through 1935 until early in 1937 when a further revision was made. From the spring of 1937, the actual work schedule was planned in the field in accordance with a general and flexible program and subject to sug¬ gestions from the office. A schedule showing predicted time of all high high and low high tides for each day of the month for all sections from Saybrook Breakwater to East Haddam bridge was furn¬ ished the supervising chemist at the laboratory and the foreman of the river crew a month in advance by the office in Hartford# This schedule of tides formed a basis for tho actual work schedules# The field work was divided into two main parts, regular and special sampling. The regular sampling was designed to provide continuous data of general nature on seasonal trends and also to give a basis for planning special sampling. Special sampling pro¬ grams were planned to furnish data on some particular phase of the problem of sea-water intrusion. Tho various special studies are outlined in a later section. The sampling program required considerable planning. A work schedule was posted at the base in Essex so that each man knew where, when and with whom he was to work# The sampling from the bridges was usually carried on by one man but for certain studies and in all the boat work two men work together. Samples were taken at the sur¬ face, mid-depth, and bottom at all channel stations and at shore stations, where the depth permits, below East Haddam bridge# At 19 Middletown bridge, 11 integrated" samples representative of the total depth of the river were taken. A daily log (see P.28) wa3 kopt by all workers in which all facts and operations were recorded. In addition to the actual sampling, water-level measurements, temperature readings, current observations, wind direction, weather conditions, boat movements, dredging and any other pertinent observations were noted. The following paragraphs givo an outline of the work as carried out at the bridges, shore stations and by moans of boat. Bridges Middletown Highway bridge Samples were taken twice each day at the start of the work, three in the morning and three in the evening. All were integrat¬ ed samples. This procedure was varied from time to time. This sampling was done by a man from the laboratory. East Haddam bridge Samples were taken twice a day, once in the morning and once in the afternoon, four to seven days a week at four stations a- Oross the bridge. Bottom and surface samples were taken most commonly but surface, mid-depth and bottom samples were taken from time to time. Saybrook Highway bridge Five sampling stations were established on this bridge and surface, mid-depth and bottom samples were taken at each station. The sampling schedules at this bridge were varied from time to time and included continuous sampling for 12, 24 and 48 hour per¬ iods. The greater part of the sampling was scheduled to coincide with the time of low high tide. Samples were taken at intervals of from 15 minutes to one hour from one to two hours before to two to three hours after low high tide most commonly. Water level measurements have been taken, first from the bridge deck and later from a point on the center pier closer to the water or from Persson's Dock located just north of the bridge on the west bank of the river. The measuring points have been tied in with tide level bench marks of the United States Coast & Geodetic Survey. Observation of cur¬ rents and slack water periods we re made. Boats Sampling from boats commenced November 1, 1934. The work was divided into two sections, one crew visited sections A, B, C, D, E, and the other crew visited 4, K, L, M, and N« The time of sampling at first was approximately from 9 A.M. to 2 P.M. regardless of the 20 stage of the tide. The crews started at Sections E and I in the morning. Sections A and B were temporarily abandoned and sections W, T, R and H were added. Boat work could not be oarriod on dur¬ ing January, February and the first part of March due to ice in the river and other unfavorable conditions. The boat program was varied in 1935 by correlating the work with tho tide stages. Runs were made following high tide, high slack water, low tide and low slaok water up the river. This was the general type of sampling from boats carried on during 1936 and up to July 17, 1937 when the boat work was discontinued. More attention was given to trips at high slack water than at other tide stagos. Shore Sampling Sampling from points along the shore was started in December, 1934 when river travel was hazardous. One crew started on the west shore at Section R and first sampled the sections up the west shore to B, and then down the east shore to section R. The other crew started at section W on the east shore and working down to Say- brook Highway bridge crossed the river and sampled the sections up to T. At first, this sampling was not correlated with tide stages. The later shore sampling was correlated with tide stages, samples being taken at definite times according to tide cycles^ and with samples being taken at selected stations according to the expected position of chloride in the river. Shore sampling was abandoned while the boat work was being done. Specimen sheets showing the time intervals for the tides at the various stations, schedules for the observers, and logs for the regular and special sampling programs are given on the following pages. 21 TABLE OF TIME INTERVALS FOR TIDES* STATION TIME INTERVAL G SD 59 minutes hour 04 minutes p 1 09 ti s 1 16 ii Saybrook Bridge 1 22 ii N 1 31 ii M 1 42 ti L 1 50 ii K 1 59 n W 2 06 it T 2 11 ti R 2 16 ii J 2 20 n H 2 24 ii E 2 27 ii D 2 35 ii C 2 38 n B 2 40 ii A 2 46 ii East Haddam Bridge 2 50 ii *Time Interval to be added to High Tido Time for New London as given in United States Department of Commerce "Tide Tables of At¬ lantic Ocean" for any required station to find time of high tide for that station* These tables may also be used to determine low tides in like manner* The time intervals enumerated above are used for calculating the time of tides at the various sampling sections on the Connecticut River in connection with tidal salinity studies by the Ground Water Survey 22 TABLE OF TIME INTERVALS FOR SLACK WATER** STATION TIME INTERVAL G SD P S 30 minutes 35 40 45 50 55 Saybrook Bridge N M L K W T R J H hour 01 minute 07 13 18 24 30 35 40 E D C B A East Haddam Bridge **Time interval to be added to time Slack Ebb Begins at the Race, Long Island Sound, for High Slack Water, or to Time Slack Flood Begins at the Race for Low Slack Water for any required station. Use "Current Tables of Atlantic Coast',' by United States Department of Commerce. The time intervals enumerated above are used for calculating the time of slack water at the various sampling sections on the Conn¬ ecticut River in connection with tidal salinity studies by the Ground Water Survey. 23 Sohedule for observer 1* Arrange to have gas, oil, motor boat, eto., ready to leave at designated time. 2# Run %otor throughout sampling period and place boat on proper station locations for all sampling, 3. . Return all equipment to proper place when work is completed, 4# Arrange bottles in order of Stations and Sections and oheck markings on all bottles. Duties of Sampler 1. Get proper number of bottles for days sampling# 2. Assist observer in getting other equipment if necessary 3. Carry on all sampling operations keeping log of work done. 4# Take bottles to place designated to be pioked up by man trav¬ eling with bottles# Duties of Bridge Workers 1# Carry on sampling operation on bridges# 2# Have correct number of bottles at Essex each day for following days work. Precautions for boat work All men working on the Ground Water Survey - River Division, using boats, are to obey in every detail the harbor regulations as outlined by the Harbor Master# This includes the use of life preservers, fire extinguishers, lights, etc. as required by harbor regulations. In addition, when working night shifts, one of the regular life preservers must be taken along in addition to those furnished by the boat owners# It is also required to carry some kind of light for night work# At no time take any chances during storms or rough water, but all samples are to be taken if safety permits. 24 Work and Time Schedule Feb# 28 - Mar* 5, 1938 M T W T F S Estimated 28 1 2 3 4 6 Work Canessa 4° SEO 0 0 0 1° Carter X X X X X Clark SD SD 1 1 Pratt SD 1 1 1 Guertin SD SW 1 1 6 6 hrs. hrs. Aotual Hours 60 hrs. 60 hrs. 60 hrs. 60 hrs. 60 hrs. E.S.T. Feb, 28 Mar, 1 Crew - 1 10:44A-12A 11:12-2W 11:21-KW 56 12:12P.E.Had. 11:20A-12A 11:48-LW 54 12:00N-12A 12:28-LW 63 12:42P-12A 1:10-LW 56 1;19-KW 2:10-E.Had. Starting Time Crew - SD 7jllA-SD 9:23 -SW 60 9:29-12A 7:47A-SD 9:59 -SW 51 10-.05-12A Crew SE-SW SE 51 8:00A sw 5i Total S 60 153 56 54 63 56 Total 442 Crew SD - See program posted (Note: Mar. 1 2-Sets 11-9-8 Say. Br. Crew SE-SW - See program posted (Note: 4 hrs. Study #22 instead of 5 hrs. ) Crew -#1 Mar. 2-5 As usual only working through Say, Br.-E,Had.Br. East Had, Br. 4-sets 1-hr. intervals. Crew -#1 Mar. 3-4 See program posted (Note: Mar. 3, 14-sets Sta. LW Mar. 4, 17-sets sta. LW.) Note: Sections sampled subjeot to change FWC 25 Sample Log - Regular Study Monday July 5, 1937 AM •• PM (13&) No, of samples Weather - Fair - Warm River - Calm Mild North wind Saybrook Bridge Slight Down Current Meas. 3.5« - 9:45 AM #11 - 9-.49A #9 - 9-.53A #8 - 9:57A BMS Regulars N1 10:05A N2 10:09A N3 10:13A N4 10:17A BMS Ml 10:25A M2 10-.29A M3 10-.33A M4 10:37A BMS LI 10-.47A L2 10-.51A L3 10-.55A L4 10:59A BMS L5 11:03A Fair Down Current K1 11:ISA K2 11:17A K3 11:21A K4 11:25A BMS W1 11:31A W2 11:35A W3 11:39A W4 11:43A RMS T1 11;51A T2 11-.55A T3 11:59A T4 12-.03P BMS Moderate Down Current R1 12:10P R2 12:14P R3 12:18P R4 12:22P BMS R5 12:26P J1 12:31P J2 12:35P J3 12:39P J4 12:43P BMS HI 12:49P H2 12:53P H3 12-.57P H4 1:01P BMS El 1:07P E2 1: IIP E3 1:15P E4 1:19P BMS Boat Left Essex 9:15 AM " Arrived " 2:00 FM No Temp, taken - Thermometer broken No Bottles lost Sampler and observer (Richards) Scott Note: This sample page taken from Log Book No. 57 Letters indicate Sections - numbers following are stations for example N1 means sample taken at station 1 of section N B refers to samples taken at bottom M refers to samples taken at mid-depth S refers to samples taken at surface 26 Sample Log - Bridges Tuesday July 6, 1937 (24) No. of samples Middletown- Weather- Fair- Light southwind Reading - 7:30 AM - 29.8* - Moderate Down Current Int. #0 - 7:35A #1-7:40A #2 - 7:45A #3-7:5QA East Haddam Slack Water Reading 8:30 AM 26.5« Temp - 5B - 74°F - 5S - 74°F B. S. #4 - 8:35 AM #B- 8|40 AM #6 - 8:45 AM #7- 8:50 AM East Haddam Slack Water Reading 10:30 AM 26.05« Temp 5B-74°F 5S - 74°F B. S. #4 10:35 AM #5 10:40 AM #6 10:45 AM #7 10:50 AM Middletown - Slow Down Current Reading 11:30 AM - 29.2* Int #0 - 11:35A - #1 - 11S40A #2 - 11:45A #3 - 11;50A Aresco - Sampler Note: # indicated at bridges are sampling stations This sample page taken from Log Book #59 F refers to sample taken at bottom S refers to sample taken at surface Samples taken at Middletown are integrated 27 Sample Log •• Weat Shore Sampling August 10, 1937 PM (54) No. of samples Weather- Fair- Warm Mild Southwest wind River - Choppy West Shore Samples KW - B - 1:00 PM - 1:01 PM mm 1:02 PM Fair up current WW - B - 1:14 PM - 1:15 PM - 1:16 PM u ti it TW - B - 1:28 PM mm 1:29 PM - 1:30 PM n it ii KW - B - 1:50 PM mm 1:51 PM - 1:52 PM it it ti WW - B - 2:04 PM - 2:05 PM - 2:06 PM it ti ii TW - B - 2:18 PM - 2:19 PM - 2:20 PM Slight up current KW - B - 2:40 PM - 2:41 PM - 2:42 PM it ti ti WW - B - 2:54 PM - 2:55 PM - 2:56 HI Very " " " TW - B - 3:08 PM - 3:09 PM - 3:10 PM High slack KW — B — 3:30 PM — 3:31 PM mm 3:32 PM Very slight down current WW - B - 3:44 PM - 3:45 HI - 3:46 HI it ii it ii TW - B - 3:58 PM mm 3:59 PM mm 4:00 PM it ti ti ii KW mm B - 4:20 PM - 4:21 PM mm 4:22 PM it ii it it WW - B - 4:34 PM - 4:35 PM - 4:36 PM Slight down current TW - B - 4:48 PM - 4:49 HI mm 4:50 PM it ii ii KW mm B - 5:10 PM - 5:11 HI 5:12 PM it ii ii WW - B - 5:24 PM - 5:25 Ha - 5:26 PM ii ii n TW - B - 5:38 PM - 5:39 PM - 5:40 HI it ti ti No Bottles Lost (Richards) Tracy Observer and Sampler This sample page taken from Log Book ^0 Note: 1st letter in first column indicates sampling section 2nd letter (W) indicates West shore B - indicates sample taken at bottom 28 Sample Log « Speoial Study #100 Sunday July 4, 1937 AM (45) No. of samples Weather - Clear Warm Moderate Northwest wind » River oalm Measurement - 8:26 AM - 3.6' Temp, #9A - 22°C Saybrook #11 - 8:30 Ail #9 - 8:34A #8 - 8-.38A BMS Strong down current Special Study #100 #9 - 8:42 AVI N1 - 8:51 M3 - 9:01 L3 - 9:10 K3 - 9:18 ¥2 - 9:23 T1 - 9:29 R2 - 9:34 J2 - 9:39 H3 - 9:45 E3 - 9:50 D1 - 9:57 — BMS Strong Down Current tt Mod. Fair No bottles lost or broken Boat left Essex 8:00 AM " arrived " 10:45 MA Sampler and observer Hall (Conklin) Note: This sample page taken from Log Book No. 57 B refers to sample taken at bottom M refers to sample taken at mid-depth S refers to sample taken at surface Sample Log - Special Study - Saybrook Bridge Sat. June 19, 1937 (6) No# of Samples Weather: Cloudy - Light N. E. Wind - River - Calm Special Study - Saybrook Bridge Sta. #9a Time Measurement 8:01A 7.3' Light up Current 8; 06A 7.25' ft n n 8 j 11A 7.25' ii ti it 8:16A 7.2' ii ii ii 8:21A 7.2« Slight up Current 8; 26A 71» S * ii u it 8:31A 7.2' ii n it 8:36A 7.15' Very slight up Current 8:41A 7.15' ii it it it 8:46A 7.15' ii it it ii 8:51A 7.1« Slack water(high) 8;56A 7.1» ii ii it 9.-01A 7.15' Very slightly down current 9:11A 7.15' ii it ii ti Six samples 1 ft. from bottom Time 9:12A - 9:13 - 9:14 - 9:15 - 9:16 - 9:17 Cannessa Note: This sample page taken from Log Book #58 This special study is taken from a platform beneath the bridge - close to sampling station #9 30 Speoial studies During the 3 years of this survoy, different types of studies were carried on to determine the extent of ohlorido intrusion and to obtain a more definite pioturo which would show under what con¬ ditions the greatest penetration might occur, A brief description of these studies follows# Special study No, 1,"-Samples at 3 depths at one sampling point in each of the regular cross sections following the advance of the flood tide up the river, stationsj N-l, M-3, L-4, K-3, W-2, T-l, R-2, J-2, and if time permitted, H-3, and E-3. Speoial study Ho, 2#—Same stations as in No. 1, but following ebb tide up the river, Speoial study Ho, 3,—Samples collected simultaneously at sur¬ face, mid-depth, and bottom oach hour for a period of 4 hours, at the following combinations of cross sections: Saybrook Bridge and N, L and M, W and K, R and T, H and J, First sample collected at high tide. Special study No, 4,—Similar to No. 3; first sample at low tide continuing for 4 hours at same points as above. Special study No, 5,—Same procedure as for No. 3, using the following combinations of sections; M and N, K and L, T and W, J and R, Special study No. 6.--Same procedure as for study No# 4 and combinations used in study No. 5. Special study No. 7,—Twenty-four hour sampling period at Say- brook Bridge and cross section L, taking samples at all depths at regular stations, one set each hour, midweek. Special study No. 8.—Hourly samples during forty-eight hour period from 6:00 A.M. Sunday to Tuesday A.M. at Saybrook Bridge, samples at all depths at stations 8, 9, and 11. Special study No. 20.—Samples at 15 minute intervals during a period of about 12 hours, to cover the high and low point in the curve. River studies on different days from sections N to E. Speoial study No. 21.—To show variations in chloride at all depths. Samples taken at 10 or 15-minute intervals for 4-5 hours at Saybrook Bridge and section L. 31 Special study No. 24«—Study to find dotail variations in intrusion and to dotermxno tho timo of maximum chloride concen¬ tration. Samples at 10-minute intervals at surface, middle, and bottom at station 9, Saybroolc Bridge, station 5 section L, and station 3 section M, in July and August 1936. Special study Ho. 25.—Staff gage readings every five minutes from 1/2 hour before to 1/2 hour after lotr high tide. Six bottom samples collected at one-minute intervals, first sample 15 minutes after last high tide observation. Special study No. 100.—Same as No. 1, but for high slaok water: i.e., samples at regular cross sections, all 3 depths at one sampling point. Special study No. 101.—This study was substituted for No. 100 when the use of boats was discontinued, samples being taken from the shore and at fewer sections than in No. 100. Special study No. 200.—Same as No. 2, only taken on low slack water. Special study No. 201.—This study was substituted for No.200 when the use of boats was discontinued. Special study No. 240.--Surface, mid-depth, and bottom samples collected at all stations on Saybrook highway bridge and at all stations on cross sections up to section L. Samples taken at l/2 hour intervals at the high tide-high slack water periods and at one or two hour intervals during other periods. Carried on for 24 hour periods sometimes and only during the day light hours at other times. Special study No. 480.—Surface, mid-depth, and bottom samples at all stations on Saybrook Bridge and at cross sections up to Section A. Similar to Special Study 240 but covering longer per¬ iods. Plans were to take hourly samples for periods of 48 hours. It is expected that the results of these special studies will be tabulated for another report on the Salinity of the Connecticut River. 32 Experiences in Navigation on Connecticut River Saybrook Highway bridgo to Sootion "A1' F. W. Carter, Foreman of River Division To the casual observer tho Connecticut River appoars to be calm and safe for navigating purposes; but on the contrary, tho river is treacherous at times, having very deep holes, causing whirlpools in unexpected places, and when the wind is strong against its currents, it becomes rough with high waves. In ad¬ verse weather, with rain, cold, freezing conditions, strong winds, and boat covered with ice inside and out, it requires a supreme effort to carry out the sampling program according to schedule. The river changes in a vary short time, becoming rough and choppy within a few minutes with a change in the wind. In the spring of the year when ice is breaking up, one has to watch for unexpected wind, current and tide changes. One would natur¬ ally think that, with a strong current, ovon in a freshet, ico would fceep in one course; but with a change in the wind, ice will also change, shifting from one side of the river to the other. Changes in tides and currents will also change position of ice floes. Pilots have much to contend with while manoouvoring in ice jams. Fogs also are quite heavy at times. The greatest danger in connection with fog lies in the possibility of not noticing a large rivor boat, oil tanker, or tug moving in tho river. Special precautions have to be taken during 24 or 48 hour studios when the mcr. are working through the night. As a rule largo boats do not travel during a fog, but they do travel at times, moving very slow¬ ly, bloving whistles frequently, so that other boats on the river may keep in touch with their location. During fogs, sampler running motor often stops motor and listens for oil tankers or tugs which can be heard for quite some distance. A few times, while working at night, boats have been seen coming up the river with all lights out and not making any sound of any kind. From Section "K" southward down the river is very dangerous. Being near the mouth of tho rivor with much force behind the current, the river is very powerful from this point out into tho Sound. The pilot considers all difficulties in placing his boat on stations when the water is rough. He may keep boat headed into the wind and waves with just enough power to hold boat on station, or he may make a circle around the station, taking care not to take water over stern. In rough weather it is sometimes necessary to tack, -sail¬ boat fashion, taking waves on an angle with spray coming in contin¬ uously. If one is not continually on the lookout, meeting waves squarely on the stern will cause the boat to stay and plane on ono 33 wave, similar to surf riding. This is dangerous, for, in trying to leave this wave, the pilot may lose control of the boat unless the motor has speed and power enough to pull away. The following is a general description of river conditions noticed by the river men sampling between the East Haddam and Say- brook Bridges. Section N.—River wide* Have noticed rough water work itself across river. With south, winds and tide falling, east side of river is quite rough. As current becomes stronger, rough water will work itself towards the west shore} east shore becoming smooth, possibly due to two channels in this part of the river. With north and northwest winds the opposite effect is noticeablo. This section is very rough at times, being in the open space of meadows where there is no lee. Section M.—This section is very treacherous, the river being narrow and deep; waves are powerful, piling up in all directions when the wind is in the right quarter - strong southeast or north¬ west. Due to the river being much wider at Section "L", the next section above, current is strong at this section. The very deep water near the west shore causes whirlpools which extend through stations 3 and 4. During rough water crews always take a ducking going from Section "M" to Section "L". Section L.— River is wide at this crossing and has two chan¬ nels. This section, as a rule, is generally calm except when thc- wind is blowing fairly strong from a south or north direction, causing high, rolling waves. Winds blowing from these quarters have a clean sweep across meadows before reaching the river, there¬ fore making navigation perilous at stations 2 and 3. Section K»—This section is hazardous. Located in a kind of bottle neck with the river wide just above and narrow at this sec¬ tion makes the water very rough at times. This crossing is deep all across, with two channels joining together just above, making the current very strong. With a moderate or strong north or south wind, this section is usually rough. At times, when it has been rough on this section, it has been fairly calm 1000 feet above and below. Section W.—This section is very rough at times on all four stations, probably due to an island in the center of the river, causing swift currents on both sides of the island. One peculiar condition is noticeable on this section. Regardless of how rough it may be on the river, the west shore, out for about 50 feet, is always calm, except when a strong wind is blowing from the north¬ east and east. This calm water, as a rule, extends from Section "J" down the river to Section "L". Section "Yf" is dangerous when ice is floating. One has to be careful when going from Section "K" to Stations 1 and 2, Section "YiT", that ice does not cut him off 34 from returning to the west shore again. When strong south and. southeast or north wind is blowing, it is ofton impossible to work tho oast sido of this crossing. Section T.—At this point the river is wido, and doop on tho east shoro, while tho middlo and wost parts of tho crossing aro very shallow. A current running against a southerly or northwest wind on this crossing causes water to become very rough. Special precautions must bo taken in the middle of the crossing. "When moderate or strong winds are blowing, the waves do not hold to¬ gether due to the shallow water at this point. As a result, if the boat is not handled correctly, waves will break over the side of the boat. Section R.—This crossing is similar to "T" only its location is further north and away from tho island. Due to comparatively shallow water the full width, northwest and south winds cause the river to become very choppy. Rough water will work itself across the river from the east to the west side, very much the same as on Section "N". This section has two channels, one near the east shore and the other on the west shore, similar to Section "N". Section J.—This crossing is generally calm except when a strong northwest or southeast wind is blowing. Under these wind conditions, it becomes very rough. As the river is doop all the way across, tho waves hold together. Strong winds blowing from other directions have no effect on this section as crossing is located in the lee of hills. Section H»—At this point the river is narrow and very deep on the west shore, resulting in a strong current. During a blow from the northwest, waves roll high but hold together. Wind from other quarters have no effect on this section due to the location in the lee of hills. A slight whirlpool is noticeable at Station 4 in bad weather. Section E.—At this point the river is narrow and doop the full width, and tho crossing is generally calm. Strong northwest and east winds will produce rather rough water. An island is lo¬ cated just above this soction with two channels on either side of the island coming together on the crossing. The current coming down the west side of the island has straightened out before reach¬ ing the section so that tho meeting of the two channels doens not cause as much of a disturbance as one might expect. As this section is in the lee of hills, winds from southerly and northeasterly directions have no effect on tho water. Section D.--Here the rivor is wido and deep on the oast and west shores, and shallow in tho middle. A submerged rock pier is located just north of the section on the west shore. During bad weather and north and northwest blows, this crossing becomes very rough. Winds have a clean sweep coming down the river and the cur- 35 rent runs strong. The pilot needs to take every prooaution when attempting to make this section and beyond. Section C.—At this orosoing the river is narrow and fairly deep all aoross with strong currents. Tho section is wide open to northerly and southerly winds. During blows from these directions there is no lee and waves roll high. The pilot must be on the watoh to prevent getting stranded throughout this part of the river due to the laok of shelter. Section B»—The river is narrow and deep with strong currents, especially on the west shore. This section has a whirlpool on Stations 3 and 4. During blows from the northwest, this section is dangerous, becoming very rough. East and west winds have little effect, causing choppy water, but not usually rough. Section A.—The river is fairly wide with shallow water over half way across from the east shore. The west shore is very deep and the currents are very strong, causing slight whirlpools at times. With strong north winds, this section is very rough. Throughout a day's work, crews run into bad river conditions somewhere along the way, and only on rare occasions may one find calm water at all sections. 36 IABOiiATORY PROCEDURE The laboratory, situated at the Hall Chemistry Laboratory of Yfosleyan University, handles all determinations for chloride. Dr. Hoover of Wosloyan University has oooporatod fully with tho laboratory staff and has always been ready to aid in tho solution of problems that might arise. All chloride determinations were made by titration with a standard .solution of silver nitrate using potassium chromate as an indicator. The end point of the reaction is shown by the appearance of the pink color of silver chromate. Two standard solutions of silvor nitrate are used, one containing 2.3955 grams silver nitrate per liter and the other, 23.955 grams silver nitrate per liter. These silver nitrate solutions are stand¬ ardized against a standard solution of sodium chloride. The samples reaching the laboratory vary widely in chloride content making the use of the two standard solutions not only desirable but necessary in obtaining clearly dofinod end points. Twenty-five cubic centirnetor samples are ordinarily usod for titration. Tho weaker silver nitrate solution is used for tho low chloride and the stronger silvor nitrate solution for tho higher chloride. Samples requiring less than oho cubic centimeter or more than 15 cubic centimeters of silver nitrate are re-run using an amount of sample that will require between 1 and 15 cubic centimeters of the silver nitrate solution. It has been found that this practice gives clearer end points than using larger volumes of silver nitrate. The chloride content of samples taken at or bolow Saybrook Highway bridge is occasionally extremely high. "When this is the case, a 5 cubic centimeter sample is taken and diluted with 10 cubic centimeters of distilled water before titration. Tho samples are stirred vigorously during titration to prevent occlusion. The procedure in the laboratory was to work from tho samples with the lowest chloride content to thoso with tho higher content. This involved a minimum possibility of error should the pipotto not be thoroughly washed between samples. Any sample giving results out of the average range for a particular section was rechecked to avoid any possibility of error. Titration was done in front of a monochromatic yellow safe light glass screened to exclude other light sources as fully as possible. Illumination was furnished by two 40 watt bulbs. A comparison color solution was used to aid in determining the end point in cases where tho chloride content was low. The pipettes were filled by the use of a suction lino thus avoiding the danger of tho sample coming in contact with tho.mouth of the worker. This was necessary because of tho probability of pollution in the samples being handled. The pipettes wore held in a rack while draining and 4 or 5 pipettes were usod at once. This system permitted tho handling of a large number of samples in a reasonably short time. The sample bottles were prepared for the field and \rashed in 37 the laboratory. Tags, gummed, labels and similar devices for labelling sample bottles were not effective for the type of work and the labelling is done with a soft pencil on an otchod portion of the bottle itself. The bottles wore otchod at tho laboratory using a mixture of ammonium bi-fluorido, hydrofluoric acid and barium sulphate. This was mado by dissolving as much ammonium bi- fluoride as possible in hydrofluoric acid to make a smooth paste. Barium sulphate was added until tho dosired consistoncy wa3 ob¬ tained. A pasto just too thick to run off the side of the bottle appoarod to be best for tho purposo- In mixing tho pasto, tho ammonium bi-fluoride must be all dissolved as a granular paste does not etch evenly. The paste was smeared over the place to be etched and the bottle is allowed to stand as long as possible, overnight at least, before washing. The first washing was done with clear running water to avoid the possibility of burns from any residual hydrofluoric acid. The bottles were given a thorough second wash¬ ing, inside and outside, in water containing a small amount of trisodium phosphate. They were then rinsed with tap water and finally with distilled water. Corks were inserted and the bottles placed in boxes ready for tho field. Tho bottles wero ro-otched from time to time in order to keep the working surface as usable as possible. Co-ordination between the laboratory and field was essential to obtain the best results. Samples were brought to the laboratory at frequent intervals. The field foreman indicated tho sections represented in various boxes of samples. The samples from the sections farthest up tho river and for tho most recent date were tested first at tho laboratory. A report of tho chloride contont was transmittod to tho fiold foreman who used this as an indicator for making suitable adjustments in stempling program. In this manner, the program was constantly changed in details to follow changes in tho rivor conditions. 38 General Statement of Chloride Intrusion A study of the accumulated data of the first three years of work on the river would soom to indioate that under what might be considered normal conditions, the salt-water penetrated the estu¬ ary for a distance of approximately 12 miles above the mouth. The average yearly discharge ij about 18,000 cubic feet per socond at Thompsonville, Connecticut • The variation in rivor discharge is an exceedingly important factor, if not tho most important factor in determining the distanco to which salt wator will ponotrato the rivor. With a low rivor discharge, such as 5,000 cubic foot per socond, chlorides oxcouding 1000 parts per million, havo boon found to occur at Section C, or about 3 miles below East Haddam Bridge. When the river discharge exceeds the average figure given above, high chloride values are not observed much above Saybrook Highway Bridge. Another important factor is closely linked to the discharge, the width of the river and tho contour of the river bottom. It will be seen from the map, (pago 5), that the rivor has a fairly uniform width up to a restriction just south of Nott Island near the location of Section M. Abovo this point, tho rivor sproads out and until restricted again at the vicinity of Ely's Vfharf, Section K. There is another widening of the river between Section K and Selden Neck, Section H. Another restriction in the river occurs at Section B just south of the outlet of Chapman's Pond. It appar¬ ently requires a very low river discharge, less than 5,000 cubic feet per second, and a very high-high tide for any appreciable chloride values to appear as far up the river as Section B. There are numerous factors affecting the detailed distribution of chloride at each cross section. These factors are wind direction, currents due to obstructions in the rivor, the passa.gc of boats, particularly those of any size, up or down the river, river dis¬ charge, and height of tide. It has been noted that the channel station on Saybrook Highway Bridge will show very high chlorides while the other stations show values considerable less. At other times the high chlorides will show in the channel and toward the "western end of the bridge with a comparatively low chloride con¬ tent in the center of tho section. Occasionally the highest chlo¬ rides will appear at the west end of tho bridge with very much lower values in tho channel and oastorly end of tho bridge. It is not yet possible to state definitely that any one factor will determine the extent of sea water intrusion. There appear to be two or more fac¬ tors operating at all times that add a constant variation to the Computed from discharge figures furnished by the Geological Survey, U. S. Dept. of Interior. 39 faators that can be more or less definitely oharted. The bed of the river has undergone considerable ohanges sinoe the starting of the work. The great floods of Maroh, 1936 made changes in the channels, scouring the bed of the river at one place and depositing quan¬ tities of sand in othors. Dredging operations wore carried out by the United States Army Enginoors from Dooomber, 1936 to and includ¬ ing June 1937, making a 15 foot channel from Hartford to the mouth of the river. The material removed during these operations was deposited in the bed of tho river away from the channel and in many cases, small islands wero built. These dredging operations had a considerable effect on the extent and nature of the penetration of ohloride into the river. Hi the results from special studies following the high tide and slack water up the river by means of boats, the drop in chlo¬ rides at each section has been fairly uniform at times but in some instances a more pronounced drop has been noted at Section K and H. However not enough data has been accumulated to determine the effect these restrictions may have upon chloride penetration, 40 FACTORS AFFECTING SALINITY Several factors have a disturbing influence on the saline in¬ trusion into the Connecticut River estuary which must be considered for their relative effects* These factors are tides., tidal cur¬ rents, non-tidal ourrents, floods or droughts, wind direction and velocity and weather. Changes in the distance of the moon from the earth cause changes in the range of tide. The range when the moon is in peri¬ gee, or nearest to the earth, is known as the peregoan rango, and the range when the moon is in apogoe, as the apogean range. Changes in the declination of tho moon affect not only the moan range but also the daily inequality in tho height of the high and low waters, this inequality being generally the greatest near the times of max¬ imum north or south declination and least near the times when the moon is over the Equator. Ytfhen the moon is full or new, high water rises higher and low water falls lower than at other times of the month, giving at such times an increased range known as the spring range. When the moon is in the first and third quarters, the high water does not rise as high nor the low water fall as low as at other times giving a decreased range of tide known as the neap range. There are usually two high tides and two low tides each day designated as High High Tide, High Low Tide, Low High Tide and Low Lovr Tide. These vary in height from day to day due to the effect of the moon. The following figures from the Atlantic Tide Tables for June 25, 1938 show the height of tide predicted for 6:40 AM to be 2.2 feet while for 7:03 PM the predicted height is 3.3 feet or a difference of 1.1 feet in the two high tides. There is a slack water period which may or may nor appear at the predicted time according to the volume of river discharge. Slack water is the time when the opposing forces of incoming tide and river current are equalized. A simple device used to determine time of slack water consists of a \ inch rope 15 feet long, having a heavy weight attached to tho lower end with the top end fastened to the observation platform. A series of white cloth strips % inch wide 8 or 9 .inches long, are tied to the rope at one foot intervals commencing about four inches below the water surface. These strips indicate any slight movement of the current in either direction. At high slack as the water movement ceases, the strip will drop to a vertical position, the top strip dropping first and following in order the others will drop until all are down indicating slack water. During low slack water the bottom strips will drop first, and the top strips last. High slack water will appear first from mid-depth to surface, while from mid-depth to bottom an up current will be observed until slack water appears from surface to bottom. This may also be observed while taking samples, the air bubbles from the mid-depth bottle will closely follow the sample cable to the surface while those from the bottom bottle will rise to the sur¬ face about 4 or 5 feet from the cable. Slack -water is determined 41 from a depth of about 6 foot below surface, from thin point down the current changes rapidly. Visibility, an a rule, is not good below this depth. On flood tide, the current runs first and strongest near bot¬ tom, On the ebb tide current runs first at ton. At normal river discharge, the curronts at flood or ebb tides continue to run until pressure is equalized. Beginning with slack flood, the current in¬ creases in velocity until the strength or maximum velocity of the flood is reached, it then decreases until slack ebb. Currents will change first near the shore while the channel current will change last, thus the channel is most reliable for making observations. Thero is about one hour and thirty minutes elapsed time between the predicted time of high or low tide and the predicted time of the corresponding slack water and during this period, a rico or fall of tide will be observed which is about 0^2 to 0,3 feet rise at the first of the low slack and about one foot fall at the first of the high slack. Slack water will work up stream according to the vol¬ ume of discharge; in other words, if river discharge is normal or below, slack water will work up stream farther than with a river discharge above normal. The volume and variation of the river discharge non-tidal cur¬ rent will at times cause the slack water to appear before or after the predicted time. The Connecticut river is subject to changes in volume of discharge due to several factors. The average daily dis¬ charge during the 3 years of this study was about 18,000 cubic feet per second and ranged from 2,000 cubic feet per second to a peak of 278,000 cubic feet per second in the flood of March 1936. The river is very susceptible to sudden chances caused by natural factors; heavy rains, melting snow, wind and general weather conditions. It is also affected by the artificial control at Holyoke, Massachusetts and on the Farmington River, a major tributory of the Connecticut river. The average monthly and yearly discharge.of the Connecticut river is given on the following page. 42 Average monthly and yoarly disohc.rgo of the Connecticut Rivor at Thompsonville for threo yoare anding Soptombor 30,, 1937» Disohargo in oeoond-feet' Month 1934-35 1935-36 1936-37 Oct. 8296 5048 10266 Nov. 15407 9211 '12972 Dec. 15121 11190 19150 Jan. 22595 10247 27619 Feb. 11464 6680 20500 Mar. 25752 89215 13380 Apr. 32954 44683 40790 May 24633 24341 49107 June 17650 7580 17820 July 12115 5056 9929 Aug. 5374 3912 5955 Sept. 5566 4752 6840 Aver.yearly 16435 18578 19455 An increasing river discharge will advance the high slack water nearer the predicted time of high tide. The low slack water will be delayed. As the river discharge continues to increase, it becomes more difficult and sometimes impossible to note any slack water, a continuous down stream current will prevail. As the force of the incoming flood tide reaches its greatest strength, it will slow down the velocity of the current to a very slight flow, some¬ times causing a lull. A "lull" may be defined as a stoppage of cur¬ rent and is due to the pressure of the incoming flood tide. The im¬ portant distinction between a "lull" and true slack water lies in the fact that there is no reversal of current direction with the former Lulls occur only at times of high river discharge and are replaced by low slack water as the volume decreases. This replace¬ ment is progressive upstream. Lulls are noted at Saybrook Highway bridge only at extreme flood condition. There is a resumption of the current in the down stream direction with no up current being observed. This may occur at times ranging from one to two hours be¬ fore the predicted time of high tide. The first slack water to appear with the river receding is low slack. In this case, there is a down current which decreases to complete stoppage, immediately followed by an up current. The moment of change between the down and up current is low slack water. If low slack water does not occur before or within the range of one to two hours before high tide, there will be no slack water. High slack water disappears completely at times of abnormal discharge- As the volume decreases, high slack begins to appear and occurs very a-on after peak tide. At first, there is only a moment between changing current directions, but as the time between peak Computed from figures furnished by the Geological Survey, United States Department of Interior. 43 tide and high slack incroasos, tho poriod of no current becomes longer. If high slack is obsorved during timos of abnormal dis¬ charge, a high high tide slaolc will ooour closer to tho prodictod time than a low high tide slaolc to its predioted time. Observations of ocourrdnoe of high slack water were not a reg¬ ular part of the program until the start of studies following the high and low slaok waters up tho river. Howevor, such data as is available indicates that, with the exception of flood periods, tho slack water was occurring very close to the predicted time until tho flood of March 1936# Since that time, high slack water has occurred very erratically except during periods of dischargo lower than tho average. During tho entire year of 1937, high slack water did not occur at the predicted time on more than 14 days. It occurred more often at high tide or 5 to 50 minutes after the high tide. The river has apparently been much more sensitive to con¬ ditions such as rain storms, melting snow and other natural factors since the flood of March 1936, than during 1934 and 1935. A one day rain has often caused a down current for 24 hours during the following day. The position and direction of currents, both tidal and non- tidal may vary groatly at one section at tho same time. Under nor¬ mal conditions tho channel has the strongest curront. Tho direc¬ tion of currents and pressure will deviate from the regular channels during periods of high discharge. The currents tend to seek out points of least resistance and cut across bends in the river and reach the banks of the river at points away from the deepest channel. Observations at Saybroolc Highway bridge have shown at times an upstream current running at the west side, the channel at slack period, and a slight down current at the east side. This con¬ dition occurs near tho time of reversal of current. It is the cur¬ rent that carries the chloride and conditions similar to those men¬ tioned above cause higher chlorides to appear at stations away from the channel than the chlorides in the channel. When up and down currents occur together in the horizontal cross section, there are whirlpools and eddies at the junction of the two currents which affect a mixing of fresh and salt water giving apparently anomolous results, chlorides higher at mid-depth than on the' bottom and occasionally the highest chlorido at tho surface. Variations in water-level from the predicted heights of tide may be caused by condition outside the river in Long Island Sound. Daily changes in barometric conditions and winds cause variations in level, On-shore winds or a low barometer will, in general, cause ooth high end low tides to be higher than predicted while during periods of off-shore winds or high barometer tides will be lower, Y'.nd direction in the lower Connecticut valley is very erratic and may or may not coincide with the wind direction over the open water of Long Island Sound. Not infrequently, an oast wind will be blowing in the Sound whereas at Saybrook Highway bridge tho wind 44 ■will bo northorly. Observations of wind direotion wero made at the start of the days work at the commencement of the tidal salinity study. Later observations were more frequent with wind direction, variations in direction, and time of observation, being noted. It is difficult to determine wind direction at the various seotions and stations unless there is a strong wind from one quarter, Winds blowing across the valley frequently oauso secondary winds up or down the valley. The winds oommonly shift with tide changes and bctweon day and night. It is not uncommon for the reports to show winds from all quarters as the observer moves from station to station. The shifts in direction are more common near the mouth of the river than upstream where the valley is more confined. Easterly winds cause exceptionally high tides and are common¬ ly accompanied by rain. There is usually a period of cloudy weather preceding the rain and commonly the high tide occurs during this period. When there is a steady easterly wind for two or three days, there is a tendency for the Long Island Sound water to pile up on the Connecticut shore. This means exceptionally high tides and the effects are noted up the river as far as Chester Ferry and to Section D, eleven miles from the mouth of the river. During such periods, the low tides will commonly be as high as the normal low high tide. Strong northwest winds tend to create a reverse condition from that outlined above with' very low tides and high tides below the predicted. Such storms may last for two or more days. Southwest winds commonly occur during a period of one high tide and have no appreciable effect on the height of tide. Wind shifts and breaks in the weather occur most commonly at times of slack water, especially when the wind is from the stormy quarters. If the weather does not clear at the first "high slack after the start of a storm, the condition will become worse with no phange until the next high slack. When the weather is cloudy with the wind from the northeast, east, southeast or south quarters, it will invariably rain -with the incoming tide. Showers will occur on the ebb tide on a cloudy day with the wind in the other quartors. Observations by the field men appear to show that there is a definite relation between the course of thundor storms and the stage of the tide in the Connocticut river. Those thunder storms commonly originate in the northwest and westerly quarters and when approaching the river their course from that point is largely dependont on the tide. If it is slack water, the storm will continue easterly and cross the valley and a'sharp storm is common. When the storm moots an outgoing tido, it rurns southerly down the west side of the valley and passes out over Long Island Sound, With an incoming tide the storm will turn 4S northerly up the river commonly following the east bank. If the storm reverses direction with the outgoing tide there will be a severe storm. These suddon storms with oommonly strong cross river winds blow surface water from ono sido of tho river to the other and conflicting results in ohlorido content of samples may result. Heavily loadod boats, particularly oil tankers, procooding up river about one to two hours aftor tho start of flood tido will create tremendous disturbance in the river and cause variations in the chloride values. These boats are 200" to 250 feet long and draw 11 to 12 feet of water. They sometimes come in contact with the channel bottom or may be only two to three feet off the bottom. A rise and fall motion of the water has been noted two miles ahead of the boats. There is a continuous suction towards the boats from a point about ono half milo above thorn# The water is drawn off shore abreast the boat and remains off shore until the boat has passed. There are times when four or five largo boats will proceed up river at one half mile intervals thus keeping the water end currents in constant turmoil. More or less permanent obje.cts such as bridge abutments, deep holes, spits and islands commonly cause disturbances of currents. This condition is most noticeable when working from boats as there are whirlpools and a constant boiling motion when the currents are interrupted or changed by influences such as the above# Some of these currents appear to move in channels or "veins"# Samples taken one to two feet apart will show quite different chlorides under tho above conditions. The contour of tho rivor bottom is continually changing. Sand and silt are deposited or removed as the various currents change in strength and direction. Large quantities of sand and silt were de¬ posited on the river bottom by the flood of March 1936# Considerable dredging carried on by the United Ste.tes Army Engineers, was nec¬ essary to reopen the channel for the passage of the larger boats. Tho following is a brief outline of the oourse of tho dredging operation. Dredging was commenced in Docomber, 1936 at about the position of Section N. A channel 12 feet below mean low water and 100 feet wide was cut as far as Saybrook Dock. This work was stopped in the latter part of the same month due to ice conditions. Operations were resumed during the latter part of May 1937 using a 20 inch hydraulic cutter head dredge. A channel 15 feet below mean low water and 150 feet wide was cut from Section A down tho river to the mouth. During this operation about one million cubic yards of sand and silt were removed from the channel and deposited near the banks or in other parts of the river, building islands and other obstructions' which might tond to change the nat¬ ural flovl This in turn will alter the course and nature of the saline intrusion. The dredge ceased operation on June 22, 1937. 1Information obtained from. U.S. Engineer Corps, U.S. Array. 46 VARIATION IN CHLORIDE DISTRIBUTION The distribution of ohloridoo at tho Saybrook Highway bridge cross section is not always uniform under all conditions and will at times show quite a variation in oonoentration at .the different stations in comparison with the same general factors and it would appear that other factors still unknown may have a considerable bearing on this variable distribution. The tables on the following pages give the river discharge, wind direction and chloride values at the Saybrook Highway bridge for a number of days. Chloride values for the various tide cycles with river dis¬ charge and wind direction at five stations on Saybrook Highway bridge. River discharge is computed for Middletown, Connecticut. Chloride values in parts per million. Tide cycle: 1 hour before to high tide Date Position Stations Parts per million 8 9 10 11 12 1934 Nov. 27 Surface 350 290 104 53 53 Mid-depth 11,700 4,700 3,300 3,850 131 Bottom 7,700 12,500 9,000 12,900 7,550 Discharge cfs 21,500 South east wind 1935 Jan. 10 Surface 9 9 9 9 Mid-depth 8 9 9 9 Bottom 12 9 10 11 Discharge cfs 61,500 Light sou^h east wind Feb. 21 Surface 26 44 44 74 135 Mid-depth 10,150 49 70 620 200 Bottom 10,850 8,350 3,950 10,250 1,550 Discharge cfs 13,000 South west wind Apr. 6 Surface 7 8 9 Mid-depth 8 9 12 Bottom 13 9 19 Discharge cfs 27,000 North west wind Tide cycles 1 hour boforo to high tide Date Position Stations Parts per million 8 9 10 11 12 1935 Apr. 8 Surface 150 143 72 50 Mid-depth 11,100 2,650 6,000 47 Bottom 11,800 11,000 11,850 47 Discharge cfs 24,600 Strong oast wind May 23 Surface 710 760 560 640 Mid-depth 9,800 2,750 5,500 1,350 Bottom 10,900 6,900 8,900 1,700 Discharge efs 13,900 North east wind July 2 Surface 1,690 2,700 700 Mid-depth 11,750 9,800 11,850 Bottom 12,700 11,300 12,200 Discharge cfs 12,400 South wind 1936 Jan. 6 Surface 280 4,350 1,100 205 200 Mid-depth 13,250 12,000 8,000 11,300 375 Bottom 12,100 12,350 11,300 10,950 7,150 Discharge cfs 15,000 North west wind June 20 Surface 1,100 1,150 1,000 Mid-depth 8,150 8,000 3,700 Bottom 5,4-00 5,450 8,800 Discharge cfs 7,650 South wind Nov. 18 Surface 3,800 6,400 2,200 Mid-depth 5,900 6,300 3,500 Bottom 8,800 3,000 10,000 Discharge cfs 10,700 North wind Dec. 13 Surface 51 73 101 18 11 Mid-depth 3,200 6,400 3,250 2,350 330 Bottom 4,300 7,850 1,900 6,200 600 Discharge cfs 35,550 North wind Dec. 15 Surface 9 13 9 11 23 Mid-depth 9 340 13 9 23 Bottom 13 1,200 10 14 21 Discharge cfs 24,300 North wind 48 Tido cyclo: 1 hour boforo to high tido Date Position Stations Parts por million 8 9 10 11 12 1937 Jem. 29 Surface 280 9 20 8 6 Mid-depth '4,600 166 39 19 7 Bottom 6,450 760 ' $,360 4,650 11 Disoharge cfs 25,500 North oust wind Jan. 30 Surface 18 15 18 30 31 Mid-depth 10 51 9 8 12' Bottom 4,700 170 900 3,800 20 Discharge cfs 22,850 North east wind Mar. 26 Surface 100 23 21 75 31 Mid-depth 4,000 2,000 33 139 61 Bottom 4,200 3,600 1,000 191 2,200 Discharge cfs 17,250 North east wind June 7 Surfaep 310 220 190 Mid-depth 2,700 1,650 460 Bottom 10,100 8,700 5,750 Discharge cfs 17,700 North west wind Surface 160 40 59 Mid-depth 270 72 100 Bottom 270 90 110 Discharge cfs 17,700 North west wind June 10 Surface 1,040 980 310 Mid-depth 5,900 8,400 9,050 Bottom 6,900 9,150 10,700 Discharge cfs 15,750 South west wind Tide cycle: High tide to 3.'hour after> Date Position Stations Parts per million 8 9 10 11 '12 1934 • Oct. 27 Surface 1,400 2,050 4,100 4,000 3,500 Mid-depth 15,200 14,450 14,800 14,700 7,520 Bottom 15,450 15,000 14,850 15,350 14,900 Discharge cfs 9,560 Strong north wind Oct. 28 Surface 980 1,780 1,950 2,600 3,650 Mid-depth 13,300 11,900 11,750 12,800 5,300 Bottom 13,750 13,200 13,150 13,750 12,500 Discharge cfs 9,160 Calm wind 1935 Feb. 19 Surface 139 138 340 360 1,080 Mid-depth 12,300 11,600 4,650 10,350 2,750 Bottom 12,600 12,350 12,050 12,550 11,150 Discharge cfs 14,100 South east wind July 10 Surface 14 11 11 Mid-depth 14 11 8 Bottom 16 11 16 Discharge cfs 35,700 Light south east wind July 20 Surface 1,650 1,600 1,200 Mid-depth 6,900 5,700 6,150 Bottom 13,600 8,750 11,000 Discharge cfs 9,300 North west to south west wind Apr. 28 Surface 7,200 9,300 13,650 Mid-depth 16,150 15,650 16,250 Bottom 16,300 16,150 16,200 Discharge cfs 6,680 North oast wind 1936 Apr. 21 Surface 4 3 4 Mid-depth 5 4 7 Bdttom 38 2,750 6,800 Discharge cfs 35,000 South west wind 50 Tide cycle: High tide to 1 hour aftur Date Position Stations Parts per million 8 9 10 11 li 1936 Juno 27 Surface 900 900 900 Mid-dopth 1,400 1,650 1,950 Bottom 1,000 1,400 1,500 Disohargo cfs 6,550 South west wind Juno 28 Surface 2,500 2,500 2,100 Mid-dopth 12,650 10,100 11,200 Bottom 11,650 11,750 8,700 Discharge cfs 2,770 North west wind Nov, 14 Surface 10,750 7,950 4,850 Mid-depth 11,000 11,300 9,950 Bottom 11,300 10,700 2,900 Discharge cfs 16,100 South west wind 1937 May 8 Surface 4 3 6 Mid-depth 4 4 5 Bottom 1,340 8 9 Discharge cfs 46,300 North oast wind Juno 24 Surface 11 9 7 Mid-depth 5,000 2,100 1,000 Bottom 4,600 4,400 4,400 Discharge cfs 27,800 North west-north wind 51 Tide cycle Date Position 1934 Nov* 21 1-2 hours after high tido: Stations Parts per million Surface 5,400 7,900 Mid-depth 16,600 16,850 Bottom 16,700 16,950 Discharge cfs 16,700 10 10,100 16.650 11 13,400 12 1935 Feb. 21 Surface 38 17 19 55 490 Mid-depth 8,150 615 35 195 340 Bottom 2,150 11,850 9,550 12,450 3,750 Discharge cfs 13,000 South west wind Apr. 6 Surface 7 7 11 Mid-depth 10,700 95 6,350 Bottom 11,350 9,950 11,950 Discharge cfs 27,000 North west wind Apr. 21 Surface 5 5 7 Mid-depth 11 6 7 Bottom 10,200 6 3,550 Discharge cfs 42,700 South west viind Aug. 27 Surface 12,000 12,650 14,100 Mid-depth 16,000 15,900 15,950 Bottom 15,950 16,000 16,500 Discharge cfs 3,610 South east wind 52 Tide oyole: 2-3 hours after high tide Date Position Stations Parts per million 8 9 10 11 12 1934 Dot# 28 Surface 890 • 700 1,500 1,150 1,450 Mid-depth 2,300 3e910 1,700 2,250 2,650 Bottom 1,930 1,600 2,150 3,450 4,550 Discharge cfs 9,160 Strong east wind Nov. 20 Surface 3,000 1,850 1,550 2,100 3,500 Mid-depth 9,950 4,950 2,750 11,500 13,350 Bottom 13,950 14,550 13,350 14,850 14,850 Discharge cfs 14,000 South west wind 1935 Jan. 18 Surface 51 6 6 13 360 Mid-depth 72 6 5 25 360 Bottom 11,950 36 6 5,000 490 Discharge cfs 19,200 Light north west wind Apr. 2 Surface 32 6 11 470 Mid-depth 122 21 390 Bottom 11,050 8 5,700 780 Discharge cfs 31,800 Strong south west wind Apr. 17 Surface 4 6 9 178 Mid-depth 9 6 28 165 Bottom 14,000 7 8,850 380 Discharge cfs 44,4-00 Variable west-north wind Apr• 30 Surface 14 4 29 400 Mid-depth • 82 4 36 510 Bottom 12,050 7 4,800 840 Discharge cfs 43,500 North west wind June 28 Surface 21 94 85 Mid-depth 11,500 7,550 4,750 Bottom 13,150 7,000 8,750 Discharge cfs 20,100 South wind June 30 Surface 91 32 87 Mid-depth 11,400 61 3,500 Bottom 12,450 2,730 9,400 Discharge cfs 19,200 South-south west wind r3 Tide cyole: Date Position 2-3 hours after high tide Stations Parts per million 8 9 10 11 12 1935 July 9 Surfaoe 49 26 39 Mid-depth 333 31 74 Bottom 1,275 1,050 12,000 Discharge cfs 44,500 North west wind Sept# 8 Surface 2,350 1,700 6,400 Mid-depth 6,550 2,850 5,500 Bottom 14,050 4,600 14,200 Discharge cfs 3,160 South west wind 1936 Mar. 11 Surface 850 550 400 390 Mid-depth 10,950 7,350 1,000 400 Bottom 9,500 12,550 1,900 9,550 Discharge cfs 13,400 South east wind 1937 July 3 Surface 85 69 39 Mid-depth 220 199 59 Bottom 420 1,200 5,800 Discharge cfs 23,450 South east wind 54 Tido cycle: 3-4 hours sftor high tido Date Position Stations Parts per million 8 9 10 11 12 1934 Oct* 29 Surfaoe 100 84 70 121 590 Mid-depth 14,000 135 100 1,800 3,750 Bottom 2,800 13,100 12,100 14,200 4,500 Discharge cfs 3,210 Calm wind Nov* 8 Surface 230 730 645 345 1,400 Mid-depth 350 777 694 1,290 1,600 Bottom IS,§00. 760 700 7,450 1,400 Discharge cfs 28,400 North wost wind Dec. 21 Surface 1,140 1,590 1,440 1,270 2,150 Mid-depth 4,750 1,800 1,500 1,550 2,400 Bottom 12,650 1,750 2,150 3,750 3,100 Discharge cfs 15,100 West wind 1935 Feb. 18 Surface 110 13 11 15 320 Mid-depth '380 11 9 53 350 Bottom 12,100 12 13 11,650 688 Discharge cfs 14,700 South wost wind Mar. 16 Surface 11 6 7 7 277 Mid-depth 84 5 6 8 290 Bottom 11,850 6 5 830 560 Discharge cfs 23,700 South west wind Apr. 4 Surface 20 6 8 450 Mid-depth 151 6 28 370 Bottom 11,100 18 5,150 380 Discharge cfs 29,500 South wind Apr. 29 Surface 4 4 4 7 Mid-depth 5 4 6 8 Bottom 10,400 6 9 10 Discharge cfs 41,600 Strong >south west wind May 15 Surface • 26 7 13 280 Mid-depth 7,550 13 24 310 Bottom 12,250 5 12,650 350 Discharge cfs 31,800 Strong north west- -north wind Tic 18 12 27 9 12 24 , 9 8 55 cycle: 3-4 hours after high tide Position Stations Parts por million 8 9 10 11 12 Surface 87 17 55 560 Mid-depth 5,550 190 3,000 760 Bottom 6,450 9,300 13,300 5,550 Discharge cfs 25,800 Strong north-north west wind Surface 78 31 47 Mid-depth 12,700 550 130 Bottom 13,400 860 12,100 Discharge cfs 21,200 South east wind Surface 119 26 34 Mid-depth 9,100 "380 129 Bottom 7,300 680 12,650 Discharge cfs 21,900 South west wind Surface 202 16 11 Mid-depth 230 11 10 Bottom 2,600 14 263 Discharge cfs 44,500 Worth west wind Surface 77 15 16 Mid-depth 3,400 14 37 Bottom 13,000 13 75 Discharge cfs 17,400 South west wind Surface 4,000 3,050 4,450 Mid -depth 8,300 4; 900 7,700 Bottom 15,250 4,950 15,250 Discharge cfs 3,830 Worth east wind Surface 4,800 4,250 5,250 Mid-depth 8,300 6,250 7,600 Bottom 14,450 6,100 9,800 Discharge cfs 3,380 Worth oast wind Surface 7,900 6,950 10,000 Mid-depth 8,350 9,650 12,500 Bottom 9,900 10,650 13,700 Discharge cfs 5,800 Worth west wind 56 Tide oycles i to hours after high tido Date Position Stations Parts per million 8 9 10 11 12 1935 Nov. 23 Surfaoe 3,500 1,650 3,950 Mid-depth 10,050 4,500 7,050 Bottom 12,150 5,400 12,500 Discharge cfs 12,600 North oast wind Nov. 26 Surface 4,050 4,000 4,000 Mid-depth 5,150 5,500 8,000 Bottom 9,500 6,800 10,100 Discharge cfs 10,900 North wind Dec. 7 Surface 10,600 : L0,500 13,200 Mid-depth 11,350 9,150 13,000 Bottom 4,700 3,750 6,200 Discharge cfs 11,600 North west-west wind 1936 Mar. 11 Surface 900 290 Mid-depth 4,550 1,000 Bottom 8,350 1,600 Surface 210 210 200 Mid-depth 240 220 300 Bottom 250 220 11,200 Discharge cfs 13,400 South east wind Oct. 12 Surface 3,500 3,200 - 4,900 Mid-depth 5,900 4,200 9,100 Bottom 10,400 4,900 11,800 Discharge cfs 5,018 North vrest wind Oct# 13 Surface 4,650 3,750 5,700 Mid-depth 11,500 8,700 11,100 Bottom 13,150 12,150 12,600 Discharge cfs 6,348 North west wind Oct. 14 Surface 4,450 4,700 6,200 Mid-depth 8,400 7,300 10^250 Bottom 10,050 9,150 12,250 Discharge cfs 7,149 North east wind Tide cycle 4-5 hours after high tide Date Position Stations Parte por million 8 9 10 11 12 1934 Oct. 8 Surfaoe 2,150 2,075 2,900 3,525 6,275 Mid-depth 3,150 2,225 3,360 5,875 6,920 Bottom 13,800 2,650 5,025 10,375 8,200 Discharge cfs 11,700 Calm wind Oct. 19 Surface 2,900 2,970 1,580 3,010 1,570 Mid-depth 3,200 4,475 2,225 7,600 8,375 Bottom 15,600 4,550 7,550 11,000 7,700 Discharge cfs 8,700 Calm wind Oct. 29 Surface 125 66 79 128 660 Mid-depth 11,700 85 160 1,350 850 Bottom 14,500 2,500 1,400 13,950 2,250 Discharge cfs 10,500 Strong south west wind Surface 240 52 31 48 470 Mid-depth 13,250 85 85 145 550 Bottom 14,500 900 590 10,800 660 Discharge cfs 10,500 Strong south west wind 1935 Jan. 3 Surface 1,700 1,950 2,100 2,450 2,900 Mid-depth 2,100 2,050 2,100 2,500 2,850 Bottom 10,350 2,150 7,400 5,450 2,950 Discharge cfs 9,100 Light south west wind changing to north west May 14 Surface 19 6 13 430 Mid-depth 115 6 33 190 Bottom 11,450 59 3,750 550 Discharge cfs 28,900 South west wind May 17 Surface 214 6 41 640 Mid-depth 4,850 290 91 710 Bottom 11,800 340 12,300 2,500 Discharge cfs 23,000 North-south wind Til 26 11 , 7 , 8 8 11 9 9 R 8 cycle: 4-5 hours after high tide Position 8'tations Parts per million 8 9 10 11 12 Surface 1,240 360 1,220 Mid-depth 2,350 1,900 12;250 Bottom 14,700 2,700 14,450 Discharge cfs 9,300 South west wind Surface 3,800 3,600 3,800 Mid-depth 8,800 8,800 8,800 Bottom 12,000 4,700 11,900 Discharge cfs 2,440 South east wind Surface 1,550 1,600 1,800 Mid-depth 11,850 2,250 2,700 Bottom 14,200 2,200 7,500 Discharge cfs 5,640 Light north west wind Surface 1,700 1,800 2,100 Mid-depth 2,700 2,150 3,200 Bottom 9,150 2,200 10,600 Discharge cfs 3,160 South west wind Surface 6,300 6,600 7,100 Mid-depth 7,000 8,200 7,500 Bottom 11,600 8,300 10,900 Discharge cfs 7,420 North west wind Surface 4,000 5,500 6,300 Mid-depth 4,300 5,500 7,900 Bottom 6,500 5,900 11,000 Discharge cfs 7,170 South west wind Surface 4,750 6,600 7,550 Mid-depth 7,300 7,500 7,950 Bottom 8,300 8,150 11,900 Discharge cfs 5,650 South west-south oast Surface 5,850 9,250 11,200 Mid-depth 8,350 11,050 12,400 Bottom 9,900 11,600 13,500 Discharge cfs 8,160 North west wind Tide cyole: 4-5 hours after high tido Date Position Stations Parts por million 8 9 10 11 12 1936 Mar. 9 Surface 1,250 1,550 1,450 1,500 Mid-depth 1,550 1^550 1,750 1,600 Bottom 9,350 1,650 1,850 9,400 Discharge cfs 23,700 South oast wind Mar. 11 Surface 320 105 59 69 Mid-depth •390 115 71 145 Bottom "7,600 120 95 1,770 Discharge cfs 21,400 South east wind Nov. 21 Surface 4,500 4,700 5,100 6,000 6,000 Mid-depth 5,200 5,600 5,300 6,300 6,600 Bottom 7,850 6,000 5,400 6,800 6,800 Discharge ofs 10,500 North east wind 60 Tide cycles Date Position 1934 Dec. 1? Dec. 31 1935 1 hour before to low tide Station Parts per million 9 10 11 Surface 1,650 1,750 Mid-depth 2,200 1,900 Bottom 14,000 1,900 Discharge cfs 8,590 Surface 1,970 1,510 Mid-depth 2,000 1,750 Bottom 2,000 13,350 Discharge ofs 11,800 12 1,850 2,100 2,650 2,400 2,650 2,700 3,000 4,950 2,900 South west wind 1,510 1,320 1,250 1,650 1,350 6,950 2,•650 3,000 14,600 West wind May 29 Surface 680 750 740 Mid-depth 1,250 800 850 Bottom 14,600 800 14,050 Discharge cfs 10,800 Light south west wind June 10 Surface 1,240 1,200 1,370 Mid-depth 12,800 1,700 1,550 Bottom 14,550 1,800 11,200 Discharge cfs 19,400 East-north east wind July 25 Surface 1,290 1,270 14,200 Mid-depth 1,600 1,650 1,500 Bottom 7,800 1,750 1,900 Discharge cfs 10,100 North-south west wind Aug. 10 Surface 3,100 2,200 2,800 Mid-depth 10,700 5,900 9,900 Bottom 14,800 6,600 13,800 Discharge cfs 8,500 South wind Aug. 11 Surface 2,300 2,900 3,400 Mid-depth 4,400 3,500 5,100 Bottom 10,600 3,800 8,400 Discharge cfs 2,440 South east wind Oct. 9 Surface 2,500 2,900 3,300 Mid-depth 3,200 3,100 3,900 Bottom 11,300 3,000 6,400 Discharge cfs 7,580 North west wind 61 Tide oycle: 1 hour before to low tide Stations Parts por million 8 9 10 11 12 1936 Jon. 13 Surface 11,000 2,000 2,750 7,100 2,750 Mid-depth 1,700 1,950 2,600 5,900 2,850 Bottom 1,450 1,950 2,100 2,750 2,900 Discharge cfs 9,500 South wind Feb. 14 Surface 2,550 3,250 2,500 Mid-depth 7,850 3,200 3,050 Bottom 11,800 3,350 3,150 Discharge cfs 7,680 East wind Nov. 22 Surface 1,400 1,800 2,200 1,900 4,000 Mid-depth 2,200 2,000 1,800 2,200 2,500 Bottom 3,500 6,900 1,900 5,750 2,750 Discharge cfs 8,400 North west wind Dec. 4 Surface 1,700 1,850 1,900 1,850 2,150 Mid-deptl 1-750 1,950 2,350 2,250 2,500 Bottom 1,850 1,950 8,250 3,700 2,800 Discharge cfs 11,250 South west wind Dec. 5 Surface 1,300 1,200 1,250 1,350 1,750 Mid-depth 1,250 1,300 1,800 1,400 1,950 Bottom 1,250 1,350 8,650 3,000 2,800 Discharge cfs 10,300 North west wind Deo. 6 Surface 1,950 1,950 2,500 3,150 2,950 Mid-depth 3,950 3,950 3,050 3,350 3,050 Bottom 9,400 6,300 9,300 10,700 3,900 Discharge cfs 8,350 South east wind Dec. 7 Surface 1,850 1,900 1,900 1,800 1,900 M:*.d-depth 1,850 1,950 1,900 1,900 1,950 Bottom 1,850 2,000 2,100 2,300 2,000 Discharge cfs 11,050 North west wind 1937 Feb. 3 Surface 720 700 820 830 680 Mid-depth 800 700 3,300 3,200 750 Bottom 750 800 9,600 8,450 850 Discharge cfs 16,600 North west wind Tide cycle 1 hour before to low tide Date Position Stations Parts per million 8 9 10 11 12 1937 Feb. 4 Surface 1,700 2,100 2,350 2,250 2,600 Mid-depth 1,850 3,050 3,600 6,850 2,750 Bottom 2,000 3,200 3,400 8,600 2,800 Discharge cfs 16,150 South west wind Feb. 5 Surface 500 680 850 910 980 Mid-depth 900 900 1,000 3,650 1,000 Bottom 1,350 1,100 1,900 6,050 1,200 Discharge cfs 15,900 North east wind Feb. 6 Surface 1,350 1,100 1,650 1,400 2,000 Mid-depth 3,150 1,350 2,800 4,300 2,050 Bottom 7,200 1,650 3,600 6,700 2,850 Discharge cfs 16,050 South west wind Feb. 7 Surface 4,600 2,350 4,550 4,200 1,800 Mid-depth 12,600 11,300 12,550 10,750 10,250 Bottom 13,000 12,700 12,900 13,150 12,200 Discharge cfs 14,350 North west wind Mar. 5 Surface 300 260 320 300 330 Mid-depth 300 330 320 320 '340 Bottom 320 1,160 380 5,300 2,000 Discharge cfs 17,300 North west wind Mar. 6 Surface 1,000 1,000 1,200 1,000 1,300 Mid-depth 1,000 1,300 2,000 1,100 1,200 Bottom 1,200 1,200 6,700 1,300 1,100 Disoharge cfs 15,600 North east wind Tide cycle: low tide to 1 hour after Date Position Stations Parts per million 8 9 10 11 12 1934 Oct. 19 Surface li040 1,140 1,180 1,270 900 Mid-depth 2,000 1,150 1,625 1,925 2,075 Bottom 12.850 1,250 1,650 4,150 2,150 Discharge cfs 8,700 Calm wind Nov. 1 Surface 1,500 1,920 2,050 2,180 2,800 Mid-depth 2,500 1,950 2,270 2,330 2,950 Bottom 12,000 1,970 2,800 5,850 3,300 Discharge cfs 10,400 South west wind Deo. 14 Surface 93 153 159 '177 214 Mid-depth 140 850 161 192 1,200 Bottom 15,150 850 1,400 5,250 1,300 Discharge cfs 10,100 North west wind 1935 Feb. 11 Surface 490 410 550 500 530 Mid-depth 1,180 1,060 740 770 870 Bet com 7,000 1.150 830 1,550 1,050 Discharge cfs 12,400 West wind Feb. 13 Surface 380 410 440 410 420 Mid-depth 2,000 420 420 1,000 670 Bottom 14,050 1,120 990 1,960 840 Discharge cfs 11,800 Light east wind Aug. 23 Surface 5,100 2,000 2,400 Mid depth 2,300 3,300 3,650 Bottom 8.950 3,800 13,300 Discharge cfs 7,330 North west wind Sept.18 Surface 1, 600 1,500 1,600 Mid-depth 8,400 7,300 3,400 Bottom 4,100 10,000 9,4-00 Discharge cfs 7,780 South west wind Deo. 20 Surface 1,700 1,800 1,950 1,950 2,350 Mid-depth 2,150 2,000 2,200 2,150 2,400 Bottom 7,200 2,150 2,650 6,200 2,600 Discharge cfs 11,700 North west wind. 64 Tide cycle: low tide to 1 hour after Date Position Stations Parts por million 1937 9 10 11 12 July 15 Surface 260 260 280 Mid-depth 440 680 480 Bottom 480 4,900 1,620 Discharge cfs 12,740 South oast wind 65 Tide cycle: 1~2 hours aftor low tide Date Position Stations Parts per million 8 9 10 11 12 1934 Oct. 16 Surface 1,200 1,025 1,300 1,010 1,525 Mid-depth 11,800 2,950 1,850 2,200 2,150 Bottom 15,550 6,300 3,100 8,300 2,100 Discharge cfs 9,420 Calm wind Oct. 28 Surface 580 680 760 770 900 Mid-depth 4,500 698 750 1,050 1,050 Bottom 15,300 876 1,020 8,250 1,100 Discharge cfs 9,160 Calm wind Deo. 31 Surface 660 660 700 990 1,010 Mid-depth 12,400 5,150 1,200 2,150 1,100 Bottom 14,450 11,700 7,350 14,050 1,800 Discharge cfs 11,800 North wind 1935 Feb* 27 Aug. 8 Nov, 19 Dec. 31 Surface 280 230 Mid-depth 3,150 240 Bottom 3,000 1,145 Discharge cfs 14,100 Surface 1,600 1,250 Mid-dopth 12,900 2,800 Bottom 15,100 13,200 Discharge cfs 7,710 Surface Mid-depth Bottom Discharge cfs 15,000 '140 8,890. 14,600 4,800 450 700 6,900 c nr\A 270 320 380 285 345 380 360 8,500 400 Strong north west wind 750 10,500 14,600 North wind 450 950 6,500 North west to south west wind 4,700 4,550 6,800 5,350 10,200 7,050 North wind 66 Tide cycle: 2-3 hours after low tido Date Position Stations Parts per million 8 9 10 11 12 1934 Oct# 15 Surface 2,250 2,475 2,375 1,575 1,575 Mid-depth 11,650 7,150 6,100 6,350 2,700 Bottom 14,850 11,250 8,100 14,150 3,600 Discharge cfs 7,940 Wind direction — * w • Oct# 17 Surface 400 320 300 330 400 Mid-depth 5,750 1,050 530 750 440 Bottom 10,000 3,300 1,200 4,200 450 Discharge cfs 8,810 Fresh south wind Nov# 28 Surface 21 8 7 7 8 Mid-depth ' 204 8 8 11 10 Bottom 13,650 12 15 12 14 Discharge cfs 20,700 South east wind 1935 Feb# 11 Surface 360 163 190 270 270 Mid-depth 4,950 2,170 350 670 610 Bottom 12,550 4,550 470 8,250 4,000 Discharge cfs 12,400 North west wind Apr. 11 Surface 24-2 182 231 244 Mid-depth 360 230 270 250 Bottom 14,700 1,960 7,400 260 Discharge cfs 25,500 Strong north east wind June 8 Surface 280 300 270 Mid-depth 9,450 4,600 2,050 Bottom 14,650 6,250 8,800 Discharge cfs 13,500 South-west wind June 9 Surface 310 200 420 Mid-depth 9,200 9,400 1,255 Bottom 13,800 9,400 12,950 Discharge cfs 13,600 North-east vri.nd Aug. 5 Surface 3,700 2,800 2,850 Mid-depth 11,750 13,800 8,600 Bottom 15,000 : 11,200 14,400 Discharge cfs 4-, 620 North west wind 67 Tide cycles 2-3 hours after low tido Date Position Stations Parts per million 8 9 10 11 12 1935 Sept. 1 Surface 5,700 4,600 4,000 Mid-depth 11,700 11,750 11,850 Bottom 11,850 11,900 11,900 Discharge cfs 2,260 South west vrind Oct. 18 Surface 1,600 1,300 1,250 Mid-depth 13,950 10,600 13,950 Bottom 14,600 11,600 14,250 Discharge cfs 11,502 Strong north west wind 1937 Mar. 17 Surface 9 3 13 47 47 Mid-depth 13 15 13 41 45 Bottom 25 15 19 39 43 Discharge cfs 14,450 South west wind 68 Tide cycle 3«-4 hours after low tide Date Position Stations Parts por million 8 9 10 11 12 1934 Nov. 12 Surface 27 339 13 11 16 Mid-depth 3,300 20 27 25 15 Bottom 1,800 900 237 3,650 19 Discharge cfs 20,000 Strong ; north west wind Nov. 14 Surface 230 95 25 17 14 Mid-depth 4,950 1^800 61 105 15 Bottom 8,400 2,800 1,950 7|400 16 Discharge cfs 14,400 Strong ; north west wind Nov. 26 Surface 670 345 520 225 165 Mid-depth 9", 050 2,350 1,550 10,550 175 Bottom 15,100 6,850 3,450 1,550 390 Discharge cfs 22,800 South east wind Dec. 12 Surface 2,680 1,740 1,650 1,700 1,400 Mid-depth 8,350 4,000 4,350 5,950 1,650 Bottom 15,850 11,450 8,750 15,050 6,300 Discharge cfs 10,500 South east wind 1935 Feb. 25 Surface 262 290 250 310 320 Mid-depth 10,150 3,350 11,070 3,650 365 Bottom 14,100 6,900 4,600 12,150 2,500 Discharge cfs 12,400 South west wind Sept. 1 Surface 9,500 7,200 11,700 Mid-depth 15,700 14,400 15,100 Bottom 15,600 15,600 15,600 Discharge cfs 2,260 South west wind 1936 Jan. 2 Surface 6 j 050 5,950 7,950 Mid-depth 8,300 8,850 9,000 Bottom 9,750 10,800 10,900 Discharge 5,430 North- south east wind Decc 8 Surface 3,400 1,700 3,650 2,550 1,300 Mid-depth 5,400 3,900 5,000 4,300 3,900 Bottom 8,100 3,850 9,750 9,750 10,050 Discharge cfs 14,000 North east wind 69 Tide cycle: 4—5 hours after low tide Date Position Stations Parts per million 8 9 10 11 12 1934 Dec. 28 Surface 2,800 2,750 2,400 760 840 Mid-depth 13,450 11,450 9,800 11,150 5,550 Bottom 11,850 13,100 12,400 13,500 10,700 Discharge cfs 13,300 Strong north west wind 1935 Apr. 9 Surface 1,210 900 360 260 Mid-depth 11,900 3,700 4,500 280 Bottom 9,550 11,200 12,100 2,420 Discharge cfs 23,000 Very strong north east wind June 6 Surface 780 750 580 Mid-depth 9,200 4,900 4,800 Bottom 7,400 8,100 9,250 Discharge cfs 13,500 South east wind July 31 Surface 2,900 3; 000 3,800 Mid-depth 6,600 7,000 7,050 Bottom 8,050 7,000 9,600 Discharge cfs 17,900 South west wind Sept.26 Surface 3,600 8,700 - Mid-depth 12,700 15,200 14,900 Bottom 13,600 14,900 15,450 Discharge cfs 5,500 North west wind Oct. 16 Surface 9,600 6,300 7,900 Mid-depth 14,800 13,200 8,600 Bottom 9,650 14,250 13,850 Discharge cfs 7,000 North east wind 70 GENERAL SUMMARY The fore-going pages outlino the methods, equipment, and sampling points and present the general features of saline intrusion into the Connecticut River estuary during the years 1934 to 1937. Samples colleoted at the Middletown Highway bridge show an aver¬ age chloride content of 2 to 10 parts per million, but an occasional sample has shown chloride above 50 parts per million and in one case as high as 185 parts per million, It is not likely that these high chlorides indicate sea water intrusion as samples takon at sections lower down the river on the same day do not show results high enough to indicate salt water intrusion. In all probability the high chlor- idos at the Middletown bridge represent some form of pollution. There are no data to indicate sea water intrusion as far as the Middletown bridge during the three years of this study. Samples collected at the East Haddam bridge showed a chloride content ranging from 2 to 25 parts per million on most of the samples although some samples did show more than 100 parts per million of chloride and in one sample the chloride was 239 parts per million. Some of the samples showing more than 100 parts per million of chloride taken near the time of high tide may represent sea water intrusion up the river as far as this point. The general findings of this Survey are shown by the data on the two maps (pages »l and Those data show the chloride at the various sections during three periods when the discharge of the river was less than the average discharge for the three year period of the study. On October 13, 1935 and August 9, 1936 when the discharge at Middletown was less than 2500 second-feet the chloride at Section D (8 miles above the Saybrook Highway bridge) was greater than 400 parts per million. On June 19, 1936 with a discharge at Middletown of 9310 second-feet, the chloride at Section L (2.7 miles above the Saybrook Highway bridge) was less than 300 parts per million. On April 13, 1937 when the discharge at Middletown was 34,200 seoond- feet (nearly double the three year average) the chloride at the bottom of the river at the Saybrook Highway bridge was 240 parts per million but at other depths was less than 10 parts per million. During the flood in the spring of 1936 chloride was less than 10 parts per million in the samples collected at the Saybrook Breakwater at the mouth of the river. 71 CONNECTICUT RIVER BELOW EAST HADDAM BRIDGE (CHLORIDE CONCENTRATION) CHLORIDE IN PARTS PER MILLION OCTOBER 13,1935 8 JUNE 19,1936 f east haddam 'jR'Loe r AC ^ocwJ HADDAM T HADDAM E.HAPPAM BRIQQ& chapman pond SECTION A ?£CTIQN B hadlym e landing hadlym e SECTION C deep river. SECTION D deep river st a LYME SECTION E SAYBROOK SECTION H H AM BURG- JOSH UAv \ROCK SECTION J elys v wharf thatch bed1 SECTION R SECTION T SECTION W SAYBROOK SECTION K LYME' SECTION L NORTH COVE SECTION M south cove g-riswold point > guardhouse point SECTION N isl~ano sound DISCHARGE-CU. FT. PER SEC COMPUTED FOR MIDDLETOWN BRIDGE SAYBROOK BRIDGE i 1936-1937 CONN GROUND-WATER SURVEY W.P.A. NO 2981 SPONSORSHIP:CONN.STATE WATER COMM. DIRECTION iGEOL.SURV.. U.S.DEPT INTERIOR MEAN DAILY 72 CONNECTICUT RIVER BELOW EAST HADDAM BRIDGE (CHLORIDE CON CENTRATION} '-"-and DISCHARGE —CU . FT. PER SEC. \ SAYBROOK BRIDGE COMPUTED FOR MIDDLETOWN BRIDGE AUG. 9, 1956 APR.15, 1957 1934-1935 1935-1936 1936-1937 MAXIMUM 52.500 315.000 112,200 MINIMUM 2,030 1,620 3.100 MEAN DAILY 2,150 34.20C 18,5 1 1 20,935 21,907 CHLORIDE IN PARTS PER MILLION AUG. 9, 1936 CD 00 rO CM (0 CD O m - m co OQ APRIL 13, 1937 CM TO rO rO rO rO rO K) rO CM rO CM rO TO TO tO TO m 1934- 1930 MAX. £ MIN £ CM CM 1935- 1936 MAX. O O n <) 01 CM <7 m O 0 in m T r*- in in MIN. rO CM CM mm rO s 1936 -1937 MAX. co r^- o> 00 rO MIN. CM CM CONN.GROUND-WATER SURVEY: W.P. A. NO 2981 SPONSORSHIP: CONN. STATE WATER COMM. 01 RECTION :GEOL. SURV . U.S .DEPT INTERIOR 73 The deepest part of the Conneotiout River at Saybrook Highway bridge is about 29 feet below moan low waterr Tho cent:>r of the oharmel is about 300 feet wost of the oast shore, The bottom of the rivef is very irregular having a depth of about 29 foot at Station 8., 18 feet at Station 9, 14 foot at Station 10, 21 foot at Statjon 11 and only 9 feet at Station 12. Tho average depth for the end re cross section is about 18.5 feet. The width of the river r.t this point is nearly 1700 feet. The water at Station 9 forms a vigorous swirl apparently due to the pier on which the draw mechanism is located also to the large quantities of rock at the base of the pier. This swirl is especially active on the out-going tido and when the river is at average dis- oharge or greater. The maximum chloride found from any sample taken at Saybrook Highway bridge was a bottom sample from Station 9, October 12, 1934 with a content of 18,900'parts per million. The chlorides were gen¬ erally from 15,000 to 16,000 parts per million during the period of one hour before to two hours after high tide and 800 to about 3,000 parts per million during the low tide cycle. In the. three years covered by this report, four periods of low river discharge were experienced. Higher chlorides were observed during these months at the time of low tide as well as during the high tide cycles. During the first ten days of March 1936 the discharge at Middletown was below 10,000 cubic feet per second. Commencing March 11, 1936, the river discharge gradually increased reaching the peak on March 21, 1936 and did not return to nearly average until April 29, 1936. Salt water did not penetrate above Saybrook Dock about 2 l/Z miles below Saybrook Highway bridge during a period of several weeks in the spring of 1936. The first indication of salt water re¬ entering the river after the flood was on April 21, 1936. The river discharge had dropped to 31,000 cubic feet per second and the inten¬ sity of the penetration at Saybrook Highway bridge was erratic until the latter pact of May 1936. Chloride at the Saybrook Highway bridge was less than 50 parts per million on July 10, 1935. This may have been due to a series of showers on July 8, which increased the discharge from 8,800 cubic feet per second on July 7, to 39,500 cubic feet per second on July 10, 1935t. This illustrates the sensitivity of the river to weather conditions. The seasonal effect of salt water intrusion is difficult to state more than generally. The main seasonal effect, as might be expected, is that higher chlorides are present during the late sum¬ mer and early fall than at other times. The lowest chlorides occur during flood periods of the early spring and late fall. This is variable corresponding roughly to the seasons but neither the time nor the magnitude was the same in succeeding years. A study of the tabulations for Saybrook Highway bridge will show this general re¬ lation which is likewise true for all other sections and stations 74 when there is chloride penetration. The extent of the intrusion will vary with numerous factors, with the tides, tidal, non«tidal ourrents and discharge appearing to be the most important* Slaolc water is particularly important for the results of this Survey have shown that chloride intrusion may be expected to reach its maximum extent with the high slack water. The discharge is an important factor counteracting the effects of tidal currents. Winds and weathor havo a great influonco on the extent and nature of the intrusion by deflecting and changing currents which carry the chloride. The numerous artificial changes and factors may and probably do affect the salt'water intrusion. Such factors are artificial control of discharge, bridge abutments and piers, the passage of boats and dredging in the river. There are broad seasonal variations of chloride intrusion upon whioh are superimposed the detailed daily and frequent fluctuations caused by the many factors outlined above, together with, possibly, as yet unknown influences. Both types of variation are important in the consideration of utilizing the lower Connecticut river* It seems probable that study of the results may yield clues as to the effects of artificial control, such as flood control, upon the lower river, and should make possible a method of predicting the extent of intru¬ sion of the sea water. MIMEOGRAPHED BULLETINS OF THE CONNECTICUT GROUND WATER SURVEY S-l The Salinity of tho Conneotiout Rivor, October 1, 1934 to September 30, 1937. Part I - Text, 6 maps, 2 illustrations, 74 pages, 1938. Parts II and III - Tabulations of ohlorides of samples collected from the Connecticut river at Saybrook Highway bridge, 323 pages, 1938, GW-l Record of wells, springs and ground-water levels in the towns of Bridgeport, Easton, Fairfield, Stratford and Trumbull, Connecticut. (242 pages, 5 maps, 1938.) GW-2 Record of wells, springs and ground-water levels in the towns of Branford, Chester, Clinton, Essex, Guilford, Haddam, KillingwOrth, Madison, North Branford, Old Saybrook, Saybrook and Westbroolc, Connecticut. (340 pages, 12 maps, 1938.) GW-3 Record of wells, springs and ground-water levels in tho towns of Bethany, East Haven, Hamden, Milford, North Haven, Orange, West Haven and Woodbridge, Connecticut. (247 pages, 8 maps, 1938.) GW-4 Record of wells, springs and ground-water levels in tho towns of Berlin, Cromwell, Durham, Meridon, Middlofiold, Middlotown, Port¬ land and Wallingford, Connecticut. (170 pages, 8 maps, 1938.) GW-5 Record of wells, springs and ground-water levels in the towns of Colchester, East Haddam, East Hampton, East Lyme, Lyme, New London, Old Lyme and Waterford, Connecticut. (314 pages, 8 maps, 1938.) GW-6 Ground-water levels in north-central Connecticut, October 1, 1934 to December 31, 1937. (212 pages, 1938.) CONNECTICUT GROUND WATER SURVEY A PROJECT OF THE WORKS PROGRESS ADMINISTRATION THE SALINITY OF THE CONNECTICUT RIVER OCTOBER I, 1934 TO SEPTEMBER 30, 1937 Bulletin s-1 Part II ISSUED BY THE WORKS PROGRESS ADMINISTRATION FOR CONNECTICUT OFFICIAL PROJECT 665-15-3-116 IN COOPERATION WITH THE CONNECTICUT STATE WATER COMMISSION, SPONSOR PREPARED UNDER DIRECTION OF THE GEOLOGICAL SURVEY UNITED STATES DEPARTMENT OF THE INTERIOR HARTFORD. CONNECTICUT OCTOBER - - 1938 Connecticut Ground Water Survey A Project of the Works Progress Administration The Salinity of the Connecticut River October 1# 1934 to September 30, 1937 Bulletin S-l Part II Issued by the Works Progress Administration for Connecticut Official Project 665-15-3-116 In cooperation with the Connecticut State Water Commission, Sponsor Prepared under direction of the Geological Survey United States Department of the Interior Hartford, Connecticut October, 1938 1 Part II Table of Contents Page Introduction 2 Tide Cycle 1, One hour before to high tide 3 Tide Cycle 2, High tide to one hour after 36 Tide Cycle 3, One to two hours after high tide 80 Tide Cycle 4, Two to three hours after high tide 114 Tide Cycle 5, Three to four hours after high tide 134 Tide Cycle 6, Four to five hours after high tide 150 2 The Salinity of the Conneotiout River October 1, 1934 to September 30, 1937 Part II INTRODUCTION Sampling has been carried on almost continuously by the Connecticut Ground Water Survey since the start of work October 1, 1934 up to the present time at Saybrook Highway bridge. The tabulations of the results of chloride tests are presented in Parts II and III of the report of the tidal salinity study# The results are presented in full for the period October 1, 1934 to September 30, 1937 and giro referred to in the discussion in Part I from time to time. The Connecticut Ground Water Survey, operated as Works Progress Administration Official Project 665-15-3-116, is sponsored by the Connecticut State Water Commission, which has directed its activities since the inception of the project. Under a cooperative agreement technical direction of the work was furnished by the Geological Survey, U. S. Department of the Interior. The Ground Water Survey, started by the Connecticut State Emergency Reliof Commission on October 1, 1934 as a Federal Emergency Relief Administration project, has been operated since November 22, 1935 by the Division of Women's and Professional Projects of the "Works Progress Admin¬ istration for Connecticut, as Official Projects 65-15-861, 465-15-3-26 and 665-15-3-116. The Connecticut State Planning Board in cooperation with the State Vfator Commission, sponsored the project until July 1, 1937, when sponsorship was assumed by the State Water Com¬ mission. William H. Brothwcll, Project Supervisor for the "Works Progress Administration, also supervised the earlier work performed under the State Emergency Relief Commission; and has been in charge of the Sponsor1s program throughout. The salinity studies were planned and carried out under the technical direction of Mr. C. S. Howard of the Geological Survey, United States Department of the Interior. Mr. Yfilliam H. Brothwell was in charge of personnel and facilities, and coordinated the various parts of the work. The engineering staff of the State Water Commission assisted in transporting the samples and in other phases of the work. The field work of collecting samples was successively under the direct supervi¬ sion of Mr. Robert M. Robertson, Mr. Edwin J. Greene and Mr. Fred W. Carter. The chloride determinations were made at the Hall Chemistry Laboratory of Woslcyan University under the direct supervision of Mr. Arthur McDonald, with Dr. C. R. Hoover of the University acting in an advisory capacity. The tabulations presented in Parts II and III were drawn up under the direct supervision of Mr. Frank B. Rau. The preparation of this report has been under the supervision of Mr. Russell M. Logie, who has also assisted the Federal Geological Survey in supervising the technical details of the field work. Stencilling, reproduction and assembly of the report were in charge of Mr. YTinthrop E. Danielson. 3 Table 1 Chloride in samplos collected from the Connecticut River at the Saybrook Highway Bridge, Saybrook Conn# from October 4, IBM to Soptomber 30, 1937 Tide oyole: one hour bofore to high tide. Parts por million Date Position Stations 1934 8 9 10 11 12 Oct. 12 12:20PM Surface Mid-depth Bottom 5,075 15,050 15,150 4,600 14,800 18,900 4,675 14,400 14,550 4,200 13,750 14,550 3,050 4,400 15,700 Oct. 25 12:15PM Surface Mid-depth Bottom 7,900 16,350 16,600 5,200 15,350 16,250 4,300 15,400 14,750 6,4-00 15,700 16,350 5,450 14,900 15,400 Oct. 26 12:25PM Surface Mid-depth Bottom 4,700 15,250 15,600 4,080 14,050 14,600 3,700 12,620 14,420 3,120 13,890 15,050 2,400 13,060 14,250 Oct. 27 1:15PM Surface Mid-depth Bottom 1,345 12,950 13,550 1,455 8,700 12,100 1,230 11,800 11,550 1,000 11,450 12,150 990 2,750 10,350 Oct. 28 (a)1 1:50PM Surface Mid-depth Bottom 850 2,800 14,150 1,330 7,850 12,540 1,400 3,600 10,150 1,300 9,200 12,500 1,200 3,850 6,450 1- The sub-letters appearing beford each group of samples taken on days when more than one set of samples are recorded indicate the following studies:- (a) Regular Bridge. and Special Stu (b) Samples taken from boat (c) Samples taken from boat (d) Sample s taken from boat (e) Samples taken from boat Lies taken from Saybrook Highway at high tide, at low tide, at high slack water, at low slack water. The time appearing before each group of samples is the Eastern Standard time when the samples were taken at Station $9 except in those cases where no samples were taken at Station -/,-9. In that case the time is for the station with the lowest number in tho group. 4 Table 1 (continued) Tide oyclo: one hour before to high tide. Parts por million Date Position Stations 1934 8 9 10 11 12 Oct. 28 (a) 2:50PM Surface Mid-depth Bottom 950 12,750 13,750 1,778 11,680 12,870 1,750 9,300 12,300 1,950 12,850 13,450 2,300 9,400 11,200 Oct. 29 3:35PM Surface Mid-depth Bottom 3,850 14,400 15,230 4,100 12,550 14,600 5,450 9,650 14,300 6,900 14,450 15,400 6,400 13,850 14,650 Nov. 12 2:2 5PM Surface Mid-depth Bottom 323 14,400 14,500 275 13,400 13,600 445 11,550 13,400 330 11,700 13,800 285 4,000 12,800 Nov. 27 2:20PM Surface Mid-depth Bottom 350 11,700 7,700 290 4,700 12,500 104 3,300 9,000 53 3,850 12,900 53 131 7,550 Dec. 10 12:35FM Surface Mid-depth Bottom 1,440 14,400 14,350 1,050 10,850 13,350 930 8,850 13,200 1,000 10,800 13,900 450 560 12,600 Dec. 12 2:15R.i Surface Mid-depth Bottom 4,200 14,000 14,700 3,900 9,400 13,500 3,800 8,500 13,600 3,800 12,950 13,950 3,650 11,150 13,250 Dec. 24 ,12:05PM Surface Mid-depth Bottom 1,400 11,400 12,000 800 8,850 11,050 950 1,650 9,850 760 8,850 11,200 495 2,050 5,600 1935 Jan. 8 12:25FM Surface Mid-depth Bottom 3,500 14,950 15,200 5,200 13,750 14,550 1,900 12,050 14,050 1,450 12,750 14,850 1,800 4,000 13,900 Jan. 10 2:20PM Surface Mid-depth Bottom 9 8 12 9 9 9 9 9 10 9 9 11 Jan. 23 12:25PM Surface Mid-depth Bottom 290 13,400 13,550 710 7,750 13,100 300 3,000 12,900 200 9,100 13,300 200 1,400 11,050 Feb. 6 12:15EM Surface Mid-depth Bottom 670 12,050 12,300 430 11,550 11,850 390 9,600 10,050 6 Table 1 (continued) Tide cycle: one hour before to high tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Feb. 8 2:10PM Surface Mid-depth Bottom 710 11,500 11,550 750 6,800 10,850 650 3,300- 3,750 340 5,600 10,900 260 10,900 10,750 Feb. 21 12:15PM Surface Mid-depth Bottom 26 10,150 10,850 44 49 8,350 44 70 3,950 74 620 10,250 135 200 1,550 Mar. 8, 9, 22, 23, .24, -26,; *•. Samples from all depths - Maximum 17 Apr. 5 Surface 7 7 11 10 12:00AM Mid-depth 7,400 7 14 11 13 Apr. 6 11:50AM Surface 7 7 11 Mid-depth 7,400 7 14 Bottom 9,650 1,250 8,250 Surface 7 8 9 Mid-depth 8 9 12 Bottom 13 9 19 72 50 6,000 47 11,850 47 Apr. 10 (a) Surface 320 3:45PM Mid-depth 9,950 Bottom 13,150 (a) Surface 340 4:00PM Mid-depth 10,250 Bottom 13,800 (a) Surface 270 4:15PM Mid-depth 13,500 Bottom 13,850 (a) Surface 300 4:30PM Mid-depth 13,550 Bottom 14,100 Apr. 8 Surface 150 143 11:55PM Mid-depth 11,100 2,650 Bottom 11,800 11,000 Apr. 22,24, May 4,5, - Samples from all depths- Maximum 10 May 23 Surface 710 1:25PM Mid-depth 9,800 Bottom 10,900 760 560 640 2,750 5,500 1,350 6,900 8,900 1,700 6 Table 1 (continued) Tide cycle: ono hour before to high tide. Parts per million Date Position Stations 1935 8 9 10 11 May 26 5:08PM Surface Mid-depth Bottom 2,610 13,950 14,200 2,940 12,750 13,100 1,800 12,700 13,700 May 27 (a) 5:08AM Surface Mid-depth Bottom 1,330 11,400 11,750 1,380 7,000 9,350 1,050 2,250 8,200 (a) 6:08PM Surface Mid-depth Bottom 4,950 14,850 14,450 4,450 14,100 13,950 4,900 13,950 13,850 June 2 10:19AM Surface Mid-depth .Bottom 1,300 8,800 10,250 1,350 3,350 5,300 1,300 5,650 8,450 June 5 1:05PM Surface Mid-depth Bottom 1,490 13,100 12,450 1,360 1,520 11,850 810 2,160 12,700 June 18 10:53PM Surface Mid-depth Bottom 780 12,550 12,500 620 10,350 11,150 240 9,200 12,050 June 20 1:00PM Surface Mid-depth Bottom 16 10,700 10,750 18 132 6,300 16 45 9,150 July 2 11:25AM Surface Mid-depth Bottom 1,690 11,750 12,700 2,700 9,800 11,300 700 11,850 12,200 July 4 12:50PM Surface Mid-depth Bottom 2,070 8,200 12,900 2,050 11,250 12,250 1,640 4,900 10,250 July 5 1:03PM Surface Mid-depth Bottom 2,200 12,200 12,300 2,530 10,550 10,950 1,820 7,100 11,800 July 10 5:05PM Surface Mid-depth Bottom 12 10 15 14 11 9 14 8 15 Table 1 (continued) Tide cyole: ono hour before to high tide. Parts per million Date Position Stations 1935 8 9 10 11 July 13 (b) 7:55AM Surface Mid-depth Bottom 213 7,900 8,750 July 21 1:15PM Surface Mid-depth Bottom 3,050 13,400 13,150 3,150 7,900 12,200 2,850 9,300 12,300 July 25 6:20AM Surface Mid-depth Bottom 1,290 9,350 8,900 July 28 8:55AM Surface Mid-depth Bottom 2,050 5,600 5,200 July 31 11:08AM Surface Mid-depth Bottom 4,400 9,300 12,100 5,100 9,750 10,800 5,400 10,100 11,500 Aug. 1 10:50AM Surface Mid-depth Bottom 3,550 10,400 11,800 2,950 6,950 10,150 3,350 10,500 11,450 Aug. 11 7:25AM Surface Mid-depth Bottom 2,800 4,100 4,800 Aug. 16 10:55AM Surface Mid-depth Bottom 6,000 15,100 15,100 5,150 13,200 14,150 3,350 14,350 14,000 Aug. 18 (a) 12:40PM Surface Mid-depth Bottom 8,300 15,500 15,500 6,250 14,850 15,050 5,150 14,700 15,150 (b) 1:17PM Surface Mid-depth Bottom 8,500 13,900 13,900 Aug. 25 8:05AM Surface Mid-depth Bottom 6,050 9,700 10,350 8 Table 1 (continued) Tide oyolei one hour before to high tide* Parts per million Date Position Stations 1935 8 9 10 11 Aug* 29 11:10AM Surface Mid-depth Bottom 8,100 15,900 15,900 8,800 15,400 15,700 8,200 15,200 15,750 Aug. 30 10:55AM Surface Mid-depth Bottom 9,800 16,000 15,800 8,700 15,450 15,450 8,500 15,350 15,750 Aug* 31 10:40AM Surface Mid-depth Bottom 5,300 13,100 12,900 5,300 9,250 11,450 5,700 10,100 12,800 Sept. 1 12:14PM Surface Mid-depth Bottom 3,250 5,650 6,200 Sept.11 10:43AM Surface Mid-depth Bottom 5,500 13,350 13,900 6,850 14,250 13,850 8,150 14,450 15,100 Sept*13 12:50PM Surface Mid-depth Bottom 6,200 14,600 15,800 6,400 15,600 15,600 15,400 16,000 16,100 Sept*24 10:48AM Surface Mid-depth Bottom 5,900 15,550 15,900 7,200 15,800 15,900 9,350 15,700 15,900 Sept.25 10:48AM Surface Mid-depth Bottom 5,000 12,150 12,600 6,700 12,000 12,800 7,500 12,300 14,900 Sept.27 11:05AM Surface Mid-depth Bottom 6,750 13,800 14,200 8,800 13,700 13,700 9,100 14,500 14,100 Sept*28 11:13AM Surface Mid-depth Bottom 14,400 16,200 16,250 11,950 15,400 16,050 14,700 15,900 15,800 Oct. 1 12:08PM Surface Mid-depth Bottom 13,100 14,650 15,150 11,600 13,800 13,550 12,200 13,600 14,300 Table 1 (continued) Tide cyoloj ono hour before to high tide. Parts per million Date Position Stations 1935 8 9 10 11 Oct. 3 1:53PM Surface Mid-depth Bottom 10,300 12,600 12,950 11,500 12,900 13,150 Oct. 4 1:53PM Surface Mid-depth Bottom 3,200 10,800 13,300 3,200 11,900 12,000 Oct. 6 4:41AM Surface Mid-depth Bottom 800 1,550 1,000 Oct. 14 11:38AM Surface Mid-depth Bottom 16,900 16,000 16,400 15,100 16,500 15,600 Oct. 15 11:5 3 All Surface Mid-depth Bottom 12,500 14,800 15,400 9,000 15,100 15,000 9,500 13,950 14,700 Oct. 17 1:53PM Surface Mid-depth Bottom 7,900 14,100 14,500 7,200 11,600 14,000 5,900 10,650 14,000 Oct. 30 12:00AM Surface Mid-depth Bottom 15,000 15,900 15,900 15,000 15,200 16,000 Oct. 31 12:05PM Surface Mid-depth Bottom 11,600 14,900 14,700 8,200 13,700 13,850 6,400 Nov. 1 1:30PM Surface Mid-depth Bottom 10,500 14,100 14,500 Nov. 2 1:50PM Surface Mid-depth Bottom 8,250 13,250 6,300 12,850 4,850 13,250 Nov. 13 11:48AM Surface Mid-depth Bottom 14,250 16,300 16,150 14,050 16,100 16,150 14,600 16,100 16,000 1 0 Table 1 (continued) Tide cyoloi ona hour beforo to high tide. Parte pes million Date Position Stations 1935 8 9 10 11 12 Nov. 14 12:35PM Surface Mid-depth Bottom 12,200 15,450 15,700 13,650 14,750 14,800 10,800 13,850 14,300 Nov. 15 1:50PM Surface Mid-depth Bottom 8,850 14,900 14,700 9,050 14,150 14,250 7,4-00 14,450 14,550 Nov. 28 11:05AM Surface Mid-depth Bottom 11,300 13,050 13,100 10,500 12,450 12,600 12,000 12,500 12,950 Nov. 2S 11:25AM Surface Mid-depth Bottom 2,550 9,800 9,900 4,500 5,300 7,600 Dec. 1 1:50PM Surface Mid-depth Bottom 10 14 13 11 11 14 13 15 17 Dec. 12 11:15AM , Surface Mid-depth Bottom 10,800 14,500 14,200 7,600 12,500 14,150 4,150 13,150 12,650 Dec. 15 2:05PM Surface Mid-depth Bottom 4,600 12,600 11,400 2,600 9,500 10,250 2,550 10,650 11,250 Dec. 27 11:15AM Surface Mid-depth Bottom 4,350 12,750 12,750 7,250 12,150 11,650 4,400 11,500 12,400 7,050 12,400 12,700 5,250 11,800 12,450 Dec. 30 1:15PM Surface Mid-depth Bottom 12,100 14,550 16,100 10,350 14,400 15,800 11,000 12,950 15,650 9,500 10,750 14,700 7,350 12,850 13,650 Dec. 31 2:15PM Surface Mid-depth Bottom 11,000 12,900 14,200 7,000 11,350 12,150 6,550 10,400 11,750 7,250 10,350 11,450 6,900 7,400 11,200 1936 Jan. 6 7:53AM Surface Mid-depth Bottom 280 13,250 12,100 4,350 12,000 12,350 1,100 8,000 11,300 205 11,300 10,950 200 375 7,150 1 1 Table 1 (continued) Tide cyclei one hour before to high tide. Parts per million Date Position Stations 1936 8 9 10 11 12 Jan. 7 9: 15JKM Surface Mid-depth Bottom 6,100 13,200 13,700 5,300 12,300 13,400 4,300 9,900 13,300 1,150 11,100 13,800 8,750 9,900 12,750 Jan. 8 9:32AM Surface Mid-depth Bottom 9,050 14,000 13,300 7,800 11,600 13,500 7,050 10,800 12,100 900 10,600 11,400 510 4,550 11,300 Jan. 9 10:16AM Surface Mid-depth Bottom 3,700 12,500 13,550 3,350 11,150 12,450 2,050 11,050 11,900 2,000 11,300 12,000 700 11,250 11,350 Jan. 10 10:49AM Surface Mid-depth Bottom 850 2,900 5,450 1,800 2,900 4,500 1,350 3,850 6,850 850 950 3,400 Jan. 11 11:40AM Surface Mid-depth Bottom 2,100 14,150 1,200 12,900 13,100 1,600 12,850 12,900 1,100 700 9,400 12,900 Jan. 12 12:15PM Surface Mid-depth Bottom 9,000 10,850 11,600 6,600 10,500 11,250 6,100 10,900 10,850 2,100 8,500 10,850 1,950 4,500 9,700 Jan. 22 8:00AM Surface Mid-depth Bottom 4,050 11,250 11,800 6,300 11,450 11,600 Jan. 23 9:02AM Surface Mid-depth Bottom 210 1,350 8,200 210 2,950 9,550 270 200 6,250 Feb. 4 7;55AM Surface Mid-depth Bottom 6,200 14,300 15,200 Feb. 5 8:25AM Surface Mid-depth Bottom 5,100 13,200 12,750 2,800 11,050 10,250 Feb. 7 8:31AM Surface Mid-depth Bottom 6,500 12,450 12,750 Table 1 (continued.) Tide oycle: one hour before to high tide. Parts per million Date Position Stations 1936 8 9 10 Feb. 8 10:17AM Surface Mid-depth Bottom 4,300 9,750 11,550 Feb. 9 10:45AM Surface Mid-depth Bottom 4,500 12,650 13,000 3,350 9,150 10,800 5,400 9,300 11,700 Feb. 10 11:30AM Surface Mid-depth Bottom 3,650 11,750 11,450 Feb. 11 12:10PM Surface Mid-depth . Bottom 2,550 10,200 10,650 3,750 8,750 9,050 Feb. 12 (a) 12:50PM Surface Mid-depth Bottom 1,200 7,600 8,850 (a) 1:45PM Surface Mid-depth Bottom 1,050 9,650 10,600 Feb. 13 1:29PM Surface Mid-depth Bottom 900 11,900 12,350 Feb. 20 8:00AM Surface Mid-depth Bottom 6,150 10,600 12,350 Feb. 21 8:40AM Surface Mid-depth Bottom 4,500 12,650 13,550 3,400 6,350 10,700 3,100 8,050 10,500 Feb. 22 9:15AM Surface Mid-depth Bottom 3,650 13,200 13,400 11,000 11,550 3,300 8,2D0 11,950 Feb. 23 9:50AM Surface Mid-depth Bottom 3,650 12,000 12,000 3,150 10,150 10,400 2,400 7,350 10,700 1 3 Table 1 (continued) Tide oyole: one hour before to high tide. Parte per million Date Position Stations 1936 8 9 10 11 Feb. 24 10:45AM Surface Mid-depth Bottom 6,150 14,300 14,300 3,150 12,450 13,100 Feb. 25 11:28AM Surface Mid-depth Bottom 3,850 14,000 3,950 Feb. 26 12:20PM Surface Mid-depth Bottom 4,400 8,100 9,000 Feb. 27 1:15PM Surface Mid-depth Bottom 4,050 13,100 12,900 Mar. 12, 13, Samples from 15, 27, Apr. all depths - 7, 8, 9, 10, Maximum 15 12, 13, 19 - Apr. 25 12:50AM Surface Mid-depth Bottom 147 2,350 7,200 93 120 7,100 Apr. 26 (a) 1:20AM Surface Mid-depth Bottom 36 44 1,000 25 30 65 (a) 1:50AM Surface Mid-depth Bottom 48 55 1,390 29 30 36 (a) 2:05PM Surface Mid-depth Bottom 4 4 5 6 7 8 (a) 2:25PM Surface Mid-depth Bottom 5 6 Apr. 27 (a) 3:05PM Surface Mid-depth Bottom 38 83 61 149 1 4 Table 1 (continued) Tide oyolo: one hour before to high tide. Parte per million Date Position Stations 1936 8 9 10 11 Apr- 27 (a) 3:35PM Surface Mid-depth Bottom 450 890 360 1,690 Apr. 28 (a) 4:20PM Surface Mid-depth Bottom 400 950 35 220 (a) 4:50PM Surface Mid-depth Bottom 950 3,300 150 3,500 Apr. 29 (a) 5:20PM Surface Mid-depth Bottom 178 2,100 4,900 101 1,700 3,650 (a) 5:50PM Surface Mid-depth Bottom 440 480 5,950 49 4,700 4,500 May 2 7:47AM Surface Mid-depth Bottom 8 1,550 5,000 May 3 7:53AM Surface Mid-depth Bottom 4 4 27 May 6, 7, 8, 9, - Samples from all depths - at 2 stations - Maximum 5. May 10 (a) Surface 4 5 12;05AM Mid-depth 4 9 Bottom 7 6 (a) Surface 12:3 5AM Mid-de pth Bottom May 11 - Samples from all depths- 2 May 21 (a) Surface 10:05AM Mid-depth Bottom 18 8 18 118 35 140 sets at 2 stations - Maximum 11. 8 5 13 11 28 25 Table 1 (continued) Tido oyolo: onu hour boforo to hip,h tido. Parts por million Date Position Stations 1936 8 9 10 11 liny 21 (a) 10:35AM Surface Mid-depth Bottom 13 1,500 3,150 9 47 4,100 (a) 10:35HI Surface Mid-depth Bottom 2,300 10,350 8,650 3,550 8,750 6,700 (a) 11:05PM Surface Mid-depth Bottom 3,200 11,200 3,700 5,200 6,500 9,000 May 28 5:05PM Surface Mid-depth Bottom 9,750 10,900 10,750 2,990 8,550 9,500 May 29 5:05AM Surface Mid-depth Bottom 9,450 13,150 12,900 11,350 11,650 13,350 June 3 (a) 9:05AM Surface Mid-depth Bottom 1,300 5,650 5,750 850 4,300 5,200 (a) 9:05PM Surface Mid-depth Bottom 9,450 12,250 8,650 9,400 11,650 (a) 9:35PM Surface Mid-depth Bottom 10,200 13,000 13,300 12,300 12,500 13,000 June 4 9:23AM Surface Mid-depth Bottom 8,150 4,050 700 7,600 13,050 600 2,100 1,900 June 5 10:02AM Surface Mid-depth Bottom 1,800 6,750 6,350 800 1,450 8,200 800 3,750 5,950 June 6 10:59AM Surface Mid-depth Bottom 1,250 5,800 6,200 1,600 2,950 4,000 2,700 1,900 3,900 Table 1 (continued) Tide oycle: one hour before to high tide. Parte por million Date Position Stations 1936 8 9 10 11 June 7 11:54AM Surface Mid-depth Bottom 1,600 5,400 5,900 1,300 4,350 5,700 1,400 4,950 4,950 June 8 12:31PM Surface Mid-depth Bottom 3,450 7,300 10,500 3,200 6,400 8,850 2,850 5,800 8,700 June 9 (a) 1:05PM Surface Mid-depth Bottom 3,400 4,600 8,050 2,950 3,300 6,600 (a) 1:35PM Surface Mid-depth Bottom 7,150 11,300 12,700 5,700 11,300 12,600 (a) 1:20PM Surface Mid-depth Bottom 4,200 10,250 11,600 5,400 8,900 12,000 3,850 7,750 11,500 June 10 (a) 1:05AM Surface Mid-depth Bottom 5,400 10,550 11,400 7,700 9,500 10,700 (a) 1:35AM Surface Mid-depth Bottom 11,300 13,800 13,950 10,350 13,700 13,950 (a) 2:26PM Surface Mid-depth Bottom 2,700 9,750 10,400 3,300 7,450 10,500 2,600 6,600 9,750 June 11 3:28PM Surface Mid-depth Bottom 3,900 12,100 12,500 5,100 12,000 12,200 4,200 10,200 13,000 June 12 4:24PM Surface Mid-depth Bottom 3,850 12,200 12,900 3,800 11,000 12,500 5,000 8,450 13,200 June 13 4:30AM Surface Mid-depth Bottom 1,150 3,100 6,300 1,150 2,850 5,000 1,100 2,250 5,850 Table 1 (continued) Tide oycle: ono hour before to high tide. Parte per million Date Position Stations 1936 8 9 10 11 June 14 5:32AM Surfaoe , Mid-depth Bottom 2,400 9,200 7,600 2,250 4,000 9,300 1,850 4,300 8,900 June 15 6:29AM Surface Mid-depth Bottom 3,400 10,100 10,000 4,000 8,100 11,050 4,150 5,000 11,100 June 16 7:41AM Surface Mid-depth Bottom 3,550 8,550 11,500 5,000 9,750 11,100 4,950 9,650 10,550 June 17 8:28AM Surface Mid-depth Bottom 3,000 10,250 10,550 3,000 10,050 11,350 3,250 8,550 10,950 June 18 9:24AM Surface Mid-depth Bottom 2,650 11,250 11,700 4,200 11,400 11,100 10,800 11,050 June 19 10:15AM Surface Mid-depth Bottom 750 7,600 9,350 850 7,850 6,700 5,750 7,350 950 June 20 11:10AM Surface Mid-depth Bottom 1,100 8,150 5,400 1,150 8,000 5,450 1,000 3,700 8,800 Nov. 13 9:29AM Surface Mid-depth Bottom 9,950 11,750 11,950 10,850 11,750 11,650 10,400 12,200 11,300 Nov. 15 10:54AM Surface Mid-depth Bottom 6,300 9,200 9,300 7,150 8,900 8,650 4,150 8,050 8,250 Nov. 16 11:29AM Surface Mid-depth Bottom 460 5,000 7,000 1,600 7,300 8,650 1,800 2,600 3,750 Nov. 17 11:55AM Surface Mid-depth Bottom 12,350 13,300 13,400 7,050 12,500 12,100 6,850 13,050 13,000 1 8 Table 1 (continued) Tide oyole: ono hour before to high tide. Parte per million Date Position Stations 1936 8 9 10 11 12 Nov. 18 12:47PM Surface Mid-depth Bottom 3,800 5,900 8,800 6,400 6,300 3,000 2,200 3,500 10,000 Nov. 19 1:35PM Surface Mid-depth Bottom 4,700 12,300 13,100 ' 7,100 12,800 12,900 4,600 12,100 12,800 Nov. 20 2:20FM Surface Mid-depth Bottom 2,000 6,550 7 > 650 3,150 6,850 6,400 2,250 7,100 9,350 Nov. 27 8:35AM Surface Mid-depth Bottom 13,100 14,800 14,600 12,700 12,900 14,700 14,600 14,500 14,750 11,000 13,000 14,550 13,600 12,800 14,650 Nov. 28 9:20AM Surface Mid-depth Bottom 14,700 15,300 15,400 10,500 14,500 15,400 14,700 14,600 14,200 9,250 14,000 14,600 8,050 13,000 13,350 Nov. 29 10:15AM Surface Mid-depth Bottom 9,850 14,700 15,100 8,700 14,800 14,500 8,500 12,700 13,800 5,900 13,700 14,100 3,700 13,800 13,800 Nov. 30 10:55AM Surface Mid-depth Bottom 1,800 12,250 13,000 3,400 12,300 12,650 7,700 12,600 12,650 3,350 10,800 12,700 4,100 11,300 12,200 Dec. 2 12:50PM Surface Mid-depth Bottom 15,200 16,600 16,600 14,700 16,100 16,300 12,750 15,800 16,100 12,950 15,400 13,300 9,200 10,900 14,700 Dec. 9 6:55AM Surface Mid-depth Bottom 14,150 14,300 14,800 13,500 14,600 14,500 10,500 14,600 14,800 4,450 14,200 14,150 3,350 13,100 14,000 Doc. 10 7:35AM Surface Mid-depth Bottom 13,900 14,100 14,300 13,050 13,600 14,050 13,600 13,900 13,800 11,800 13,700 13,700 9,100 13,400 13,250 Dec. 11 8:15AM Surface Mid-depth Bottom 1,530 9,250 10,800 930 4,700 6,350 710 10,450 11,250 300 6,900 10,800 34 7,950 10,500 1 9 Table 1 (continued) Tide oyolo: ono hour boforo to high tido. Parts por million Date Position Stations 1936 8 9 10 11 12 Dec. 12 8:55AM Surface Mid-depth Bottom 100 7,000 8,950 1,200 5,900 6,600 670 6,300 8,500 930 3,050 8,100 560 5,850 3,800 Dec. 13 9:35AM Surface Mid-depth Bottom 51 3,200 4,300 73 6,400 7,850 101 3,250 1,900 18 2,350 6,200 11 330 600 Dec. 14 10:15AM Surface Mid-depth Bottom 13 6,800 8,500 9 2,850 6,350 10 150 5,550 9 12 7,650 12 66 14 Dec. 15 10:55AM Surface Mid-depth Bottom 9 9 13 13 340 1,200 9 13 10 11 9 14 23 23 21 Dec. 17 12:15PM Surface Mid-depth Bottom 360 7,800 780 10,000 880 9,300 610 10,450 4,300 3,800 7,450 Dec. 18 1:05FM Surface Mid-depth Bottom 370 7,600 450 7,000 460 2,300 550 7,600 640 2,700 3,200 Dec. 25 7:15AM Surface Mid-depth Bottom 35 8,250 28 7,900 107 8,100 23 2,200 41 147 4,000 Dec. 27 9:05AM Surfaco Mid-depth Bottom 5,200 11,450 7,400 12,200 6,350 11,800 2,750 9,100 1,060 7,300 10,150 Dec. 28 9:50AM Surface Mid-dopth Bottom 41 3,600 44 940 36 240 30 321 18 37 79 Dec. 29 10:45AM Surfaco Mid-depth Bottom 8,650 11,150 4,850 10,100 5,850 11,050 700 9,300 400 1,400 6,250 Dec. 30 11:35AM Surface Mid-depth Bottom 910 6,400 360 8,350 57 7,150 43 7,700 18 56 293 2 0 Tablo 1 (continuod) Tido oyolo: emu hour boforo to high tido. Parts por million Date Position Stations 1936 8 9 10 11 12 Dec. 31 12:40PM Surface Mid-dopth Bottom 29 2,050 7,000 35 83 6,700 34 650 6,350 22 1,850 6,150 1937 Jan. 1 1:10PM Surface Mid-depth Bottom 8 231 9 8 9 7 8 9 9 10 11 Jan. 8 7:10AM Surface Mid-depth Bottom 1,780 6,600 7,450 1,680 1,500 5,200 4,500 2,900 6,300 75 5,050 6,900 220 140 500 Jan. 9 7:40AM Surface Mid-depth Bottom 1,080 9,150 9,400 740 9,300 10,800 1,550 3,000 4,000 Jan. 10 8:35AM Surface Mid-depth Bottom 1,400 9,600 10,400 8,400 8,800 9,200 9,800 9,200 10,400 4,700 11,200 9,400 160 2,400 3,600 Jan# 11 9:20AM Surface Mid-dopth Bottom 5,000 8,500 9,100 200 1,500 8,800 800 9,100 8,300 1,300 8,300 10,200 2,100 2,400 3,500 Jan. 12 9:55AM Surface Mid-dopth Bottom 22 700 7,500 42 5,800 5,900 37 4,800 5,900 25 3,500 8,000 141 240 240 Jan. 14 11:10AM Surface Mid-depth Bottom 440 9,800 11,950 3,100 11,050 11,150 2,200 10,350 11,100 2,180 9,900 11,700 160 4,200 7,200 Jan. 15 11:50AM Surface Mid-depth Bottom 760 4,900 5,850 83 1,800 2,850 760 1,300 2,800 65 2,100 4,700 93 137 180 Jan. 16 12:35PM Surface Mid-depth Bottom 7 7 13 8 5 6 6 7 18 7 7 9 7 5 27 Jan. 23 7:05AM Surface Mid-depth Bottom 25 240 8,550 21 21 3,300 7 16 7,500 5 6 8,500 17 43 560 2 1 Tabic 1 (continuod) Tide cyolo: ono hour boforo to high tido. Parts per million Date Position Stations 1937 8 9 10 11 12 Jan. 25, 26, Except; Sta. 27, 28, - Samplos from all dopths (M - 85 ) 8, Jan. 25, (g _ 440) and Sta. 0, - Maximum Jan. 26, 17: (B - 830) Jan. 29 11:50AM Surface Mid-depth Bottom 280 4,600 6,450 9 166 760 20 39 2,350 8 19 4,650 6 7 11 Jan. 30 12:35m Surface Mid-dopth Bottom 18 10 4,700 15 51 174 18 9 900 30 8 3,800 31 12 11 Fob. 7 7:15AM Surface Mid-dopth Bottom 1,300 7,900 9,600 950 5,050 9,600 650 5,000 8,600 850 5,000 9,700 310 900 5,300 Feb. 9 8:50AM Surface Mid-depth Bottom 6,600 9,650 12,150 12,450 13,000 13,150 6,350 12,500 13,200 2,600 11,800 12,950 1,750 10,700 11,450 Feb. 10 9:15AM Surface Mid-dopth Bottom 5,300 9,400 11,650 3,950 6,400 7,900 4,050 8,000 11,300 850 7,000 11,600 1,000 1,550 7,900 Fob. 11 9:55AM Surface Mid-depth Bottom 5,400 11,350 11,150 2,750 11,600 11,850 4,050 9,850 10,600 3,000 9,500 11,050 750 2,900 6,950 Feb. 12 10:40AM Surface Mid-depth Bottom 4,400 8,300 8,500 2,100 5,000 6,300 2,300 6,100 7,000 2,600 4,600 8,500 2,000 2,300 3,000 Feb. 13 11:20AM Surface Mid-depth Bottom 2,200 9,100 10,800 8,200 8,200 9,650 3,900 6,400 9,650 1,000 3,000 10,100 600 2,500 4,800 Feb. 14 12:05PM Surface Mid-depth Bottom 9,900 12,200 12,900 7,100 9,300 13,100 6,900 11,800 13,200 5,900 7,400 12,900 4,500 5,400 9,400 Feb. 15 1:00PM Surface Mid-depth Bottom 17 14 12 7 13 15 12 11 13 14 37 33 38 38 59 2 2 Table 1 (continued) Tide cycle: one hour bofore to high tide. Parts per million Date Position Stations 1937 8 9 10 11 12 Feb. 21 6:55AM Surface Mid-depth Bottom 7,500 11,600 11,800 1,250 11,150 11,300 1,800 10,300 11,400 1,800 11,200 12,100 600 8,100 11,000 Feb. 22 7:50AM Surface Mid-depth Bottom 15,200 15,850 16,000 15,700 15,800 15,750 15,500 15,900 16,050 14,150 15,800 15,700 13,650 14,800 15,550 Feb. 23, 24, Except; Sta. 25, 26, - Sample 8, Feb. 25, (B - s from all depths 340) - Maximum 35: Feb. 27 11:25AM Surface Mid-depth Bottom 43 5,150 5,800 7 2,650 1,800 7 8 24 7 8 7,350 9 14 9 Fob. 28 12:05PM Surface Mid-depth Bottom 920 6,700 9,000 320 5,900 5,000 800 5,600 8,500 160 3,700 9,700 280 700 900 Mar • 1 12:50PM Surface Mid-depth Bottom 1,140 6,300 7,200 160 7,500 7,250 4,950 5,300 850 210 6,200 6,650 270 600 550 Mar. 2 1:35PM Surface Mid-depth Bottom 600 6,200 8,300 820 1,600 5,000 1,310 3,700 5,550 340 4,000 7,750 460 600 1,200 Mar. 8 6:40AM Surface Mid-depth Bottom 5,400 13,000 12,600 5,500 11,300 12,000 7,100 12,700 12,400 6,900 12,300 12,900 3,400 10,800 10,800 Mar - 9 7:35AM Surface Mid-depth Bottom 4,100 8,900 10,600 5,000 7,500 10,000 4,300 7,100 10,400 2,950 9,150 10,800 2,750 4,350 8,300 Mar. 10 8:25AM Surface Mid-depth Bottom 800 6,400 12,100 4,000 11,800 11,200 7,500 10,900 11,000 5,300 11,100 11,850 3,600 4,200 8,450 Mar. 11 9:00AM Surface Mid-depth Bottom 11,150 12,700 13,000 11,450 13,400 13,600 10,000 11,900 11,900 7,400 10,600 12,800 9,400 10,600 12,300 2 3 Table 1 (continued) Date Position Tide cyolai one hour before to high tide Parts per million Stations 1937 8 9 10 11 12 Mar. 12 9:55AM Surface Mid-depth Bottom 2,400 8,150 10,750 3,750 8,400 11,250 2,500 5,150 9,450 Mar. 13 10:30AM Surface Mid-depth Bottom 3,000 10,900 11,450 3,550 9,900 11,550 1,900 6,000 10,800 Mar. 14 10:55AM Surfaoe Mid-depth Bottom 1,800 11,500 12,000 2,400 10,100 11,800 1,600 6,300 10,200 Mar• 16 1:05PM Surface Mid-depth Bottom 1,100 4,000 7,800 1,400 6,500 7,100 2,400 5,600 8,250 Mar. 23 7:55AM Surface Mid-depth Bottom 26 1,300 5,650 61 2,200 5,900 22 480 5,400 Mar. 25 9:30AM Surface Mid-depth Bottom 1,100 6,800 10,300 Mar. 26 9:35AM Surface Mid-depth Bottom 100 4,000 4,200 23 2,000 3,600 21 33 1,000 75 139 191 31 61 2,200 Mar. 27 10:15AM Surface Mid-depth Bottom 11,750 11,300 12,000 11,950 11,600 2,250 1,200 2,400 4,100 1,100 1,400 3,250 1,000 1,000 1,500 Mar- 28 10:55AM Surface Mid-depth Bottom 1,700 9,500 6,000 2,500 5,400 8,600 2,000 6,900 7,800 6,700 6,900 9,100 280 360 1,100 Mar. 29 11:35AM Surface Mid-depth Bottom 3,800 9,000 1,700 4,600 4,300 8,000 3,500 7,600 8,150 800 3,200 9,950 650 600 1,400 Mar. 30 12:20PM Surface Mid-depth Bottom 5,200 8,200 11,000 7,000 7,400 11,200 5,100 4,800 10,600 4,000 8,600 11,200 4,800 4,400 7,900 Table 1 (continuod) Tide oyolo; one hour before to hi[;h tido. Parts por million Da to Position Stations 1937 8 9 10 11 Mar. 31 12:45PM Surfaco Mid-depth Bottom 1,100 5,300 5,600 1,300 5,200 3,900 1,200 3,400 4,400 Apr. 1 1:55PM Surface Mid-depth Bottom 500 1,400 5,200 680 3,300 4,000 540 2,400 7,700 Apr. 9, to May 31, a total stations - Maximum 17. of 95 sots of sample s intermittently June 1 3:13PM Surface Mid-depth Bottom 19 2,700 4,200 17 2,200 8,400 27 900 5,200 Juno 2 4:04AM Surface Mid-depth Bottom 900 10,400 5,000 June 3 4:35AM Surface Mid-depth Bottom 113 500 2,180 71 960 1,880 180 220 780 June 4 5:42AM Surface Mid-depth Bottom 560 3,300 11,500 740 10,100 9,500 720 4,000 8,000 Juno 5 6:19AM Surfaco Mid-dopth Bottom 560 3,500 4,300 380 2,080 4,300 200 260 1,200 June 6 7:28AM Surfaco Mid-depth Bottom 160 850 5,600 110 1,340 1,780 130 280 2,300 June 7 (a) 8:29AM Surface Mid-dopth Bottom 310 2,700 10,100 220 1,650 3,700 190 460 5,750 (a) 2:25PM Surface Mid-dopth Bottom 160 270 270 40 72 90 59 100 110 2 5 Table 1 (continued) Tide cycle: one hour before to high tide# Parts per million Date Position Stations 1937 8 9 10 11 June 8 (a) 8:58AM Surface Mid-depth Bottom 210 3,850 5,250 170 2,000 4,350 140 660 3,200 (a) 9:44AM Surface Mid-depth Bottom 300 9,100 9,000 430 9,250 9,300 1,200 8,900 7,900 June 9 (a) 9:45AM Surface Mid-depth Bottom 320 4,500 7,300 320 5,350 6,250 310 2,600 8,250 (a) 9:58AM Surface Mid-depth Bottom 390 7,000 7,000 420 6,100 7,000 470 4,300 3,900 June 10 11:08AM Surface Mid-depth Bottom 1,040 5,900 6,900 980 8,400 9,150 810 9,050 10,700 June 11 (a) 11:40AM Surface Mid-depth Bottom 1,200 7,650 8,550 (a) 11:50AM Surface Mid-depth Bottom 1,330 6,800 9,200 (a) 12:00AM Surface Mid-depth Bottom 1,800 9,100 9,050 (a) 12:10PM Surface Mid-depth Bottom 2,350 9,350 10,100 (a) 12:20PM Surface Mid-depth Bottom 2,240 11,800 . 10,350 (a) 12:30PM Surface Mid-depth Bottom 780 9,450 10,800 Table 1 (continued) Tide oyolei one hour before to high tide. Parts per million Date Position Stations 1937 8 9 10 11 12 June 11 (a) 12:14PM Surface Mid-depth Bottom 540 8,800 8,400 1,090 8,700 9,500 410 6,750 8,300 June 12 12:47PM Surface Mid-depth Bottom 420 5,100 5,000 440 3,600 5,400 480 1,200 1,600 June 13 1:53PM Surface Mid-depth Bottom 120 6,100 7,500 168 5,800 6,700 200 780 5,200 June 14 3:15PM Surface Mid-depth Bottom 240 4,100 5,300 340 4,600 6,800 300 3,600 7,000 June 16 5:18PM Surface Mid-depth Bottom 500 2,800 8,300 360 4,900 11,900 June 17 5:26PM Surface Mid-depth Bottom 180 7,000 8,200 200 6,200 10,300 200 1,200 3,000 June 19 7:23AM Surface Mid-depth Bottom 680 7,900 8,800 1,760 5,900 7,350 340 6,400 7,350 June 20 8:08AM Surface Mid-depth Bottom 520 2,750 8,600 920 5,450 7,600 520 1,950 5,750 June 21 8:24AM Surface Mid-depth Bottom 25 1,580 2,500 33 240 200 33 200 200 July 1 3:45M Surface Mid-depth Bottom 3,350 12,950 13,650 1,700 12,650 12,550 1,500 11,200 12,800 1,600 9,250 10,900 1,550 12,400 8,200 July 6 (a) 8:23AM Surface Mid-depth Bottom 51 3,500 7,100 640 3,500 7,300 440 2,300 7,900 Table 1 (continued) Tide oyoloj one hour before to high tide. Parts per million Date Position Stations 1937 8 9 10 11 July 6 (a) 8:26AM Surface Mid-depth Bottom 200 6,300 8,500 220 6,400 8,700 220 5,700 8,500 July 10 (a) 11:20AM Surface Mid-depth Bottom 2,000 12,400 12,700 (a) 11:30AM Surface Mid-depth Bottom 5,300 13,300 13,200 (a) 11:40AM Surface Mid-depth Bottom 4,500 13,600 13,600 (a) 11:50AM Surface Mid-depth Bottom 1,300 13,900 16,800 (a) 12:00AM Surface Mid-depth Bottom 5,700 14,000 15,400 (a) 12:10PM Surface Mid-depth Bottom 5,300 14,500 14,900 July 12 (a) 1:15PM Surface Mid-depth Bottom 6,900 6,000 14,900 (a) 1:30PM Surface Mid-depth Bottom 7,000 13,500 14,900 (a) lf45PM Surface Mid-depth Bottom 9,500 15,200 15,300 July 13 (a) 1:50PM Surface Mid-depth Bottom 4,800 11,500 12,700 2 8 Table 1 (continued) Tide ayole: one hour before to high tide. Parts per million Date Position Stations 8 9 10 11 1937 July 13 (a) Surface 2,700 2:00PM Mid-depth 10,900 Bottom 11,100 (a) Surface 3,500 2:10PM Mid-depth 11,800 Bottom 11,100 (a) Surface 11,100 2 r20PM Mid-depth 11,600 Bottom 11,000 (a) Surface 10,000 2:30PM Mid-depth 12,500 Bottom 12,800 (a) Surface 9,700 2:40PM Mid-depth 12,100 Bottom 12,700 July 14 (a) Surface 1,300 2:45PM Mid-depth 7,400 Bottom 7,900 (a) Surface 2,000 3:00PM Mid-depth 10,500 Bottom 11,600 (a) Surface 2,800 3:15PM Mid-depth 10,400 Bottom 11,500 (a) Surface 2,200 3:30PM Mid-depth 10)400 Bottom 11,100 July 16 (a) Surz'ace 550 4:00PM Mid-depth 6,650 Bottom 9,150 (a) Surface 570 4:10PM Mid' -depth 8,800 Bottom 7,700 2 9 Table 1 (continued) Tide oyole: one hour before to high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 16 (a) Surface 720 4:20PM Mid-depth 1,200 Bottom 8,050 (a) Surface 770 4:30PM Mid-depth 8,700 Bottom 8,550 (a) Surface 740 4:40PM Mid-depth 8,550 Bottom 9,050 (a) Surface 5,850 4:50PM Mid-depth 5,900 Bottom 9,600 July 17 (a) Surface 2,100 5:20AM Mid-depth 10,900 Bottom 11,800 (a) Surface 3,600 5:30AM Mid-depth 11,100 Bottom 10,700 (a) Surface 3,200 5:40AM Mid-depth 12,800 Bottom 12,700 (a) Surface 4,700 5:50AM Mid-depth 12,700 Bottom 13,100 (a) Surface 3,200 6:00AM Mid-depth 12,800 Bottom 12,800 July 20 (a) Surface 4,650 7:45AM Mid-depth 8,200 Bottom 9,400 (a) Surface 4,700 8:00AM Mid-depth 9,900 Bottom 9,600 3 0 Table 1 (continued) Tido oyclo: ono hour before to high tide. Parts por million Date Position Stations 8 9 10 11 12 1937 July 20 (a) Surface 4,800 8:15AM Mid-depth 9,300 Bottom 10,600 (a) Surface 3,950 8:30AM Mid-depth 10,400 Bottom 10,300 July 21 (a) Surface 2,500 8:20AM Mid-depth 8,500 Bottom 9,100 (a) Surface 4,200 8:30AM Mid-depth 9,200 Bottom 9,200 (a) Surface 4,700 8:40AM Mid-depth 8,700 Bottom 9,200 (a) Surface 4,700 8:50AM Mid-depth 9,600 Bottom 10,000 (a) Surface 5,400 9:00AM Mid-depth 10,250 Bottom 10,400 (a) Surfaco 4,900 9:10AM Mid-depth 11,450 Bottom 10,400 July 23 (a) Surface 2,600 9:40AM Mid-depth 8,800 Bottom 8,150 (a) Surface 3,200 9:50AM Mid-depth 9,560 Bottom 9,300 (a) Surface 3,600 10:00AM Mid-depth 8,900 Bottom 9,250 Table 1 (continuod) Tide cyclot ono hour boforo to high tide. Date 1937 July 23 (a) 10: lOivM (a) 10:2QAM (a) 10:3QAM July 25 (a) 10:5OAK (a) 11:00AM (a) 11:10AM (a) 11:20AM (a) 11:3Q&M (a) 11:40AM (a) 11:50AM July 27 (a) 12:30PM Parts por million Position Stations 8 9 10 11 Surfaco 3,300 Mid-depth 10,200 Bottom 9,800 Surfaco 6,200 Mid-depth 10,500 Bottom 10,400 Surfaco 3,200 Mid-depth 11,100 Bottom 11,500 Surface 4,000 Mid-depth 10,900 Bottom 10,400 Surface 3,900 Mid-depth 10,800 Bottom 10,900 Surface 4,100 Mid-depth 10,900 Bottom 11,000 Surface 7,200 Mid-depth 11,600 Bottom 12,100 Surfaco 5,700 Mid-depth 11,200 Bottom 12,600 Surface 8,200 Mid-depth 12,200 Bottom 13,200 Surface 10,500 Mid-depth 13,500 Bottom 13,800 Surfaco 9.200 Mid-depth 13,500 Bottom 12,300 3 2 Tablo 1 (continuod) Tido oyolo: ono hour boforo to high tido. Parts por million Dato Position Stations 8 9 10 11 12 1937 July 27 (a) Surfaco 9,300 12:45PM Mid-dopth 13,0.00 Bottom 13,800 (a) Surfaco 9,500 1:00P1.I Mid-depth 12,500 Bottom 13,200 July 28 (a) Surfaco 10,300 1:10PM Mid-depth 13,900 Bottom 13,900 (a) Surface 10,400 1:20FM Mid-depth 12,400 Bottom 13,900 (a) Surface 7,000 1:30PM Mid-depth 11,600 Bottom 14,600 (a) Surface 10,100 1:40PM Mid-depth 14,500 Bottom 14,900 (a) Surfaco 7,100 1:50FLI Mid-depth 14.500 Bottom 14.800 (a) Surface 6,900 2:00PLI Mid-dopth 14,800 Bottom 15,200 July 29 (a) Surface 7,300 2:00R.I Mid-dopth 12,450 Bottom 13,900 (a) Surface 8,500 2:15 RI Mid-dopth 13,650 Bottom 15,000 (a) Surface 10,500 2:30PM Mid-depth 14,700 Bottom 14,200 3 3 Tabic 1 (continued) Tide cyclo: mv hour boforo to high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 29 (a) Surface 11,700 2:45PM Mid-depth 14,800 Bottom 15,250 July 30 (a) Surface 4,900 2:3QAM Mid-depth 9,800 Bottom 9,900 (a) Surface 4,100 2:45AM Mid-depth 9,400 Bottom 9,900 (a) Surface 4,200 3:00AM Mid-depth 9,600 Bottom 9,100 July 31 (a) Surface 8,900 4:00PM Mid-depth 15,000 • Bottom 15,000 (a) Surface 11,100 4:15PM Mid-depth 14,600 Bottom 15,300 (a) Surface 12,300 4:30PM Mid-depth 15,200 Bottom 15,700 (a) Surface 12,000 4:45PM Mid-depth 15,800 Bottom 15,900 Aug. 1 (a) Surface 9,300 5:00PM Mid-depth 14,700 Bottom 14,700 (a) Surface 10,700 5:15PM Mid-depth 15,200 Bottom 15,200 (a) Surface 11,000 5:30PM Mid-depth 15,500 Bottom 15,400 3 4 Table 1 (continued) Tide cycle: one hour before to high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. , 1 (a) Surface 11,600 5:45PM Mid-depth 15,500 Bottom 15,400 Aug. 2 (a) Surface 8,200 5:30AM Mid-depth 9,900 Bottom 12,800 (a) Surface 6,200 5:45AM Mid-depth 11,700 Bottom 12,200 (a) Surface 11,550 6:00AM Mid-depth 11,900 Bottom 12,600 (a) Surface 7,800 6:15AM Mid--depth 12,500 Bottom 13,300 Aug. 3 (a) Surface 7,500 6:45AM Mid-depth 9,900 Bottom 9,300 (a) Surface 4,900 7:00AM Mid-depth 8,300 Bottom 9,800 (a) Surface 5,800 7:15AM Mid-depth 12,200 Bottom 12,400 (a) Surface 9,350 7: OOPLI Mid-depth 12,200 Bottom 13,000 (a) Surface 11,150 7:15RI Mid-depth 13,500 Bottom 13,600 (a) Surface 10,200 7:30PLI Mid-depth 14,000 Bottom 14,300 3 5 Table 1 (continued) Tide cycles one hour before to high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 3 (a) Surface 10,700 7:45PM Mid- depth 14,700 Bottom 14,900 Aug. 4 (a) Surface 4,700 7:30AM Mid - depth 10,150 Bottom 10,350 (a) Surface 5,300 7:40AM Mid-depth 10,050 Bottom 10,550 (a) Surface 5,600 7:50AM Mid-depth 10,450 Bottom 11,200 (a) Surface 5,500 8:00AM Mid-depth 12,100 Bottom 12,600 (a) Surface 5,050 8:10AM Mid-depth 11,750 Bottom 11,750 (a) Surface 5,150 8:20AM Mid-depth 11,150 Bottom 11,950 Aug. 5 (a) Surface 3,100 8;30AM Mid-depth 5,500 Bottom 7,700 (a) Surface 4,800 8:45AM Mid-depth 8,500 Bottom 9,600 (a) Surface 6,900 9:00AM Mid-depth 9,200 Bottom 10,900 (a) Surface 5,600 9:15AM Mid-depth 11,400 Bottom 12,800 3 6 Table 2 Tide cycle: high tide to one hour after Parts per million Date Position Stations 1934 8 9 10 11 12 Oct. 10 12:15PM Surface Mid-depth Bottom 8,390 15,750 15,700 7,175 15,250 15,650 6,400 15,250 15,500 4,950 15,700 14,150 2,97 14,75 15,3C Oct. 11 12:45PM Surface Mid-depth Bottom 6,750 16,350 16,150 8,825 15,800 15,750 10,000 15,200 16,100 10,950 15,400 16,050 11,2C 15,2C 15,35 Oct. 24 12:15PM Surface Mid-depth Bottom 8,900 16,850 16,900 9,300 16,555 17,050 9,250 14,250 16,850 9,400 16,800 16,850 6,3C 16,7C 16,7C Oct*. 27 (a) 2:00PM Surface Mid-depth Bottom 1,130 15,300 15,050 4,050 14,100 3,050 14,150 3,550 14,250 2,56 13,55 (a) 2:40PM Surface Mid-depth Bottom 1,400 15,200 15,450 2,050 14,450 15,000 4,100 14,800 14,850 4,000 14,700 15,350 3,5C 7,52 14,9C Oct. 28 3:40PM Surface Mid-depth Bottom 980 13,300 13i750 1,780 11,900 13,200 1,950 11,750 13,150 2,600 12,800 13,750 3,65 5,3C 12,5C Oct. 29 4:30PM Surface vMid-depth Bottom 4,150 14,250 15,250 4,750 10,500 14,400 5,550 12,900 14,450 4,250 14,300 15,300 5,8C 13,7C 14,2C Nov. 23 12:15PM Surface Mid-depth Bottom 1,050 12,500 13,300 1,250 11,350 12,200 850 11,850 12,200 730 12,900 11,850 42 7,9C 12,4C Nov. 26 2:20PM Surface Mid-depth Bottom 2,000 15,300 15,600 2,550 13,900 14,800 1,700 14,450 14,900 1,2,00 13,250 15,350 95 9,85 14,7C Dec. 10 2:20PM Surface Mid-depth Bottom 2,310 15,700 16,000 1,890 14,450 15,550 1,790 14,400 15,650 1,790 15,000 16,050 1,05 14,45 15,8C Dec. 11 2:20PM Surface Mid-depth Bottom 3,750 16,100 16,050 6,100 14,500 16,000 6,500 16,200 16,100 6,200 16,300 16,300 4, 7C 13,6C 16, OC 3 7 Table 2 (continued) Tide cyole: high tide to on© hour after Parts per million Date Position Stations 1935 8 9 10 11 12 Jan. 7 12:30PM Surface Mid-depth Bottom 3,600 16,000 16,150 9,300 15,450 15,500 3,400 15,550 15,800 2,650 15,700 16,100 2,3 15,7 15,9 Jan. 9 2:25PM Surface Mid-depth Bottom 1,300 14,500 14,750 1,800 13,650 14,450 1,800 10,500 14,350 1,400 12,400 14,800 1,4 9,8 13,2 Jan. 22 12:35PM Surface Mid-depth Bottom 530 12,850 13,650 440 3,550 12,850 370 12,300 12,550 690 11,300 13,150 6 3,2 12,1 Jan. 25 2:10PM Surface Mid-depth Bottom 126 2,020 11,850 Feb. 5 12:25PM Surface Mid-depth Bottom 1,000 14,800 14,850 950 12,650 15,000 1,300 14,400 13,750 4 13,8 15,0 Feb, 19 11:40AM Surface Mid-depth Bottom 139 12,300 12,600 138 11,600 12,350 340 4,650 12,050 360 10,350 12,550 1,0 2,7 11,1 Feb. 20 11:50AM Surface Mid-depth Bottom 31 12,600 12,800 94 11,350 12,550 184 5,800 11,850 191 11,050 12,400 5 3,4 11,1 Mar. 6 11:50AM Surface Mid-depth Bottom 340 14,550 14,400 390 8,950 13,800 540 12,850 14,350 Mar. 7 12:30PM Surface Mid-depth Bottom 59 12,800 13,450 31 3,900 12,900 830 7,250 13,200 Mar, 25 2:05PM Surface Mid-depth Bottom 5 5 6 6 5 16 5 6 10 Apr. 10 (a) Surface 360 4:45PM Mid-depth 13,850 Bottom 14,150 3 9 Table 2 (continued) Tide oyole: high tide to one hour after Parts per million Date Position Stations 1935 8 9 10 11 12 Apr. 10 (a) 5:00PM Surface Mid-depth Bottom 420 14,300 13,900 (a) 5:15PM Surface Mid-depth Bottom 390 14,300 14,250 (a) 5:30PM Surface Mid-depth Bottom 390 13,850 14,400 Apr. 19f 20, 21, 23, May 3 i, 6, 7, - Samples from all depths - Maximum 11 May 19 11:00AM Surface Mid-depth Bottom 13 5,950 10,750 16 18 6,850 17 80 9,750 34 38 69 May 20 11:25AM Surface Mid-depth Bottom 41 8,350 9,500 41 1,800 5,950 39 1,700 7,750 59 82 239 May 21 12:20FM Surface Mid-depth Bottom 550 11,950 12,500 500 13,100 11,900 690 10,900 12,150 380 1,100 10,400 May 22 1:10PM Surface Mid-depth Bottom 950 11,900 12,200 950 8,900 10,650 970 8,700 11,700 840 1,200 3,600 May 26 (a) 5:08AM Surface Mid-depth Bottom 1,560 13,700 13,900 1,910 12,300 13,450 1,270 13,400 13,600 (a) 6:08PM Surface Mid-depth Bottom 5,100 15,000 14,800 6,900 15,200 15,200 6,350 15,100 14,650 May 27 (a) 6:08AM Surface Mid-depth Bottom 1,960 11,500 14,300 1,760 13,750 13,600 1,230 10,350 11,750 (a) 7:08PM Surface Mid-depth Bottom 4,550 15,600 15,350 11,800 15,450 15,400 7,100 14,050 14,200 Table 2 (continued) Tide oyolei high tide to one hour after Parts per million Date Position Stations 1935 8 9 10 11 May 31 9:39AM Surface Mid-depth Bottom 3,000 11,750 12,550 June 1 11:15AM Surface Mid-depth Bottom 2,700 14,950 15,350 3,000 14,550 15,050 3,300 14,800 15,350 June 2 11:19AM Surface Mid-depth Bottom 2,050 13,950 13,950 1,950 11,950 12,950 1,750 12,600 12,950 June 4 Is 08PM Surface Mid-depth Bottom 1,330 13,500 14,500 1,410 13,300 13,050 1,310 12,500 11,650 June 12 6:55AM Surface Mid-depth Bottom 104 3,050 4,250 June 13 8:15AM Surface Mid-depth Bottom 330 9,000 8,550 June 16 10:55AM Surface Mid-depth Bottom 840 14,250 14,300 840 2,350 13,700 370 13,050 14,200 June 17 12:08PM Surface Mid-depth Bottom 1,040 13,900 13,850 1,600 13,100 13,000 960 12,550 11,900 June 18 11:36AM Surface Mid-depth Bottom 420 13,400 13,500 June 19 12:58PM Surface Mid-depth Bottom 900 14,100 14,650 910 13,350 14,450 1,160 13,950 14,050 July 1 11:38AM Surface Mid-depth Bottom 750 13,650 11,900 690 3,450 13,300 540 4,200 13,700 Table 2 (continued) Date Position Tide oyole: high tido to one hour after Parts per million Stations 8 9 10 11 1935 July 3 Surface 1,940 2,320 1,800 12;50PM Mid-depth 14,050 13,350 13,550 Bottom 14,150 13,550 14,600 July 9 Surface 58 25 35 5:05PM Mid-depth 5,350 6,700 9,950 Bottom 13,750 13,050 13,950 July 10 Surface 14 11 11 6:05AM Mid-depth 14 11 8 Bottom 16 11 16 July 13 8:57AM Surface Mid-depth Bottom 240 9,600 10,250 July 18 11:23AM Surface Mid-depth Bottom 1,800 12,100 12,150 1,770 4,350 10,050 1,660 3,400 9,700 July 20 12:50PM Surface Mid-depth Bottom 1,650 6,900 13,600 1,600 5,700 8,750 1,200 6,150 11,000 July 21 3:10AM Surface Mid-de^th Bottom 8,500 14,750 15,000 July 30 10:08PM Surface Mid-depth Bottom 4,600 12,200 12,600 3,550 10,050 11,150 4,600 12,150 9,550 July 31 12:08PM Surface Mid-depth Bottom 5,850 12,700 13,300 8,400 13,200 13,700 7,700 13,300 14,700 Aug, 2 1:08PM Surface Mid-depth Bottom 9,400 14,200 14,300 10,050 13,800 14,050 11,450 13,750 14,650 Aug. 3 1:18PM Surface Mid-depth Bottom 5,300 15,300 15,400 4,600 14,750 15,000 5,500 14,550 15,300 Aug# 4 1:45PM Surface Bottom 5,850 9,900 12,850 Table 2 (continued) Tide oyole: high tide to one hour after» Date 1935 Aug, 17 1:13PM Aug, 31 12:35PM Sept, 8 6:11AM Sept,12 12:35PM Sept,15 12:05PM Sept,22 6:54AM Sept,23 10:53AM Sept,26 12:48PM Sept,28 12:48PM Sept,29 1:48PM Sept,30 12;08PM Oct, 2 1:48PM Parts per million Position Stations 8 9 10 11 Surface 13,100 11,800 13,500 Mid-depth 16,200 16,200 16,100 Bottom 16,300 16,100 16,300 Surface 6,850 9,000 9,100 Mid-depth 15,800 15,700 15,750 bottom 15,950 15,850 15,900 Surface 2,900 Hid-depth 3,700 Bottom 7,700 Surface 3,550 3,800 5,200 Mid-depth 12,800 11,600 9,300 Bottom 11,500 13,500 12,900 Surface 9,000 Mid-depth 10,250 Bottom 12,150 Surface 4,650 Mid-dopth 7,000 Bottom 10,850 Surface 5,700 5,300 6,200 Mid-depth 10,200 7,600 11,800 Bottom 15,300 13,300 15,450 Surface 4,400 5,000 6,800 Mid-depth 12,200 6,000 12,200 Bottom 14,600 5,700 14,700 Surface 7,200 9,300 13,650 Mid-depth 16,150 15,650 16,250 Bottom 16,300 16,150 16,500 Surface 8,650 10,450 11,700 Mid-depth 15,600 14,900 16,200 Bottom 15,900 16,050 16,450 Surface 13,950 13,800 13,900 Mid-dopth 15,200 15,000 14,100 Bottom 15,350 14,150 15,000 Surface 4,100 9,900 6,350 Mid-degth Bo^'tam' 9,200 15,000 14,200 14,350 14,400 14,700 4 2 Table 2 (continued) Tide cycle: high tido to ono hour after Parts per million Date Position Stations 1935 8 9 10 11 Oct. 3 2:05PM Surface Mid-depth Bottom 11,050 13,750 13,250 Oct. 13 11:53AM Surface Mid-depth Bottom 16,900 17,000 17,200 16,700 17,100 16,000 Oct. 14 11:45AM Surface Ili d-depth Bottom 14,700 16,500 16,100 Oct. 15 1:35PM Surface Mid-depth Bottom 10,600 15,650 16,400 Oct. 16 2:08PM Surface Mid-depth Bottom 15,950 16,350 16,350 14,300 16,000 16,400 11,000 16,300 16,400 Oct. 27 (d) 10:09AM Surface Mid-depth Bottom 8,700 14,500 14,800 Oct. 29 12:17PM Surface Mid-depth Bottom 14,050 15,600 16,000 13,700 15,900 16,100 Oct. 30 12:05PM Surface Mid-depth Bottom 15,600 15,700 17,000 Oct. 31 1:40PM Surface Mid-depth Bottom 13,350 15,750 16,100 14,250 16,100 15,950 14,500 16,200 15,850 Nov. 1 1:35PM Surface Mid-depth Bottom 12,050 15,350 15,400 7,600 14,900 14,850 Nov. 10 (b) 9:43AM Surface Mid-depth Bottom 16,550 16,700 16,750 Nov. 12 12:0551 Surface Mid-deoth Bottom 16,850 17,000 16,900 16,900 16,850 16,750 16,700 16,900 16,900 4 6 Table 2 (continued) Tido cyolo: high tido to one hour after Parts per million Date Position Stations 8 9 10 11 12 1935 Nov# 14 2:05PM Surface Mid-depth Bottom 13,200 15,800 15,350 13,300 15,700 15,250 Nov. 27 11:30AM Surface Mid-depth Bottom 15,050 15,600 15,260 14,550 15,300 15,300 14,800 14,900 15,300 Nov# 30 2:05PM Surface Mid-depth Bottom 240 10,650 12,100 200 10,100 11,100 460 10,750 11,200 Dec# 10 11:05AM Surface Mid-depth Bottom 12,550 12,750 13,100 Dec. 11 11:05AM Surface Mid-depth Bottom 6,850 7,050 5,300 Dec. 14 2:05PM Surface Mid-depth Bottom 9,000 14,350 13,600 6,700 13,600 13,600 3,600 12,600 13,450 Dec. 25 11:00AM Surface Mid-depth Bottom 10,350 14,050 14,350 Dec. 26 11:15AM Surface Mid-depth Bottom 8,250 15,000 15,650 12,250 14,150 15,700 13,550 15,650 15,900 12,500 15,300 15,600 10,850 14,550 15,350 Dec. 29 2:00PM Surface Mid-depth Bottom 10,850 15,100 15,400 6,900 14,600 6,700 15,350 15,350 1936 Jan. 20 8:25AM Surface Mid-depth Bottom 5,100 11,200 12,500 2,450 7,750 10,000 4 4 Table 2 (continued) Tide cyolo: high tide to one hour after Parts per million Date Position Stations 8 9 10 11 12 1936 Jan. 21 8:27AM Surface Mid-depth Bottom 2,250 12,350 13,200 1,350 4,300 9,200 Jan. 22 9:12AM Surface Mid-depth Bottom 2,200 9,850 12,850 Jan. 23 9:55AM Surface Mid-depth Bottom 240 3,900 9,300 350 370 1,200 Jan. 24 10:50AM Surface Mid-depth Bottom 63 223 1,860 Jan. 25 11:39AM Surface Mid-depth Bottom 650 6,650 9,750 Jan. 26 12:10PM Surface Mid-depth Bottom 6,550 6,500 13,350 * Jan. 27 1:00PM Surface Mid-depth Bottom 10,150 13,700 14,000 1,850 11,600 12,650 Jan. 28 1:45PM Surface Mid-depth Bottom 850 11,150 11,900 99 1,080 9,050 Feb. 4 8:50AM Surface Mid-depth Bottom 9,200 15,450 15,650 "7,250 8,700 9,100 Feb. 5 9:2 5 AM Surface Mid-depth Bottom 4,700 13,100 12,800 2,300 6,700 9,000 Feb. 6 10j00AM Surface Mid-depth Bottom 900 11,250 13,000 175 8,850 9,600 Table 2 (continued) Date 1936 Position 4 5 Tido cycloi high tide to one hour after Parts per million Stations 8 9 10 11 12 Feb. 7 10:48AM Feb. 8 11:20AM Feb. 9 12:05PM Feb. 10 12:30PM Feb. 11 1:15PM Feb. 13 2:39PM Mar. 9 (a) 11:32AM (a) 12:22PM Mar. 10 (a) 12:11PM (a) 1:01PM Mar. 11 (a) 12:48FM Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom 8,600 14,550 14,150 4,050 13,250 13,300 8,500 13,750 14,550 3,800 13,450 13,150 2,550 10,750 12,050 1,150 9,700 11,800 6,900 12,250 14,100 2,500 13,150 12,150 8,350 12,750 13,450 2,350 12,600 13,050 2,450 13,300 13,350 3,450 12,050 12,950 1,850 13,250 13,950 4,650 12,650 12,800 1,100 11,450 12,300 1,650 12,600 13,900 2,350 12,800 14,550 1,550 9,900 11,550 1,400 11,300 13,950 1,000 10., 700 13,550 2,150 11,050 13,650 1,750 10,800 12,850 3,950 9,300 13,100 2,200 10,650 12,050 1,400 8,500 10,500 550 7,400 10,050 4 6 Table 2 (continued) Tide oyclej high tide to one hour after Parts per million Date Position Stations 8 9 10 11 1936 Mar. 11 (a) Surface 2,200 1:38PM Mid-depth 11,100 Bottom 13,750 Mar. 12, 13, 14, 16, 17, 18, 20, 26,AApr. 12, 13, 14, 18, 20 - Samples from all depths - Maximum , 11 - Except: Sta. 12 (B-47, Ma Apr. 21 (a) Surface 4 3 4 11:16AM Mid-depth 5 4 7 Bottom 38 2,750 6,800 (a) Surface 3 10:45AM Mid-depth 4 Bottom 5 Apr. 22, 23, - Samples from all depths - Maximum 5. « Apr. 24 (a) Surface 6 4 12:54PM Mid-depth 5 5 Bottom 4 4 (a) Surface 4 3 1:20PM Mid-depth 80 3 Bottom 1,650 11 (a) Surface 4 4 1:50PM Mid-depth 10 500 Bottom 6,650 6,650 Apr. 25 (a) Surface 73 1,040 1:20AM Mid-depth 2,200 3,150 Bottom 8,000 7,800 (a) Surface 69 121 1:50AM Mid-depth 5,800 4,800 Bottom 10,250 9,100 (a) Surface 3 7 1:50PM Mid-depth 3 6 Bottom 4 119 (a) Surface 3 4 2:20PM Mid-depth 3 4 Bottom 43 37 4 7 Table 2 (continued) Tide oyolos high tide to ono hour after Parts per million Date Position Stations 1936 8 9 10 11 Apr* 25 (a) 2 s 50PM Surface Mid-depth Bottom 2- 112 4,300 3 11 2,600 Apr. 26 (a) 2:08AM Surface Mid-depth Bottom 33 440 6,400 27 31 4,150 (a) 2:35AM Surface Mid-depth Bottom 740 3,600 6,100 23 2,750 9,050 (a) 3:05AM Surface Mid-depth Bottom 7 2,400 5,300 4 16 4,750 (a)" 3:05PM Surface Mid-depth Bottom 5 7 (a) 3:35FM Surface Mid-depth Bottom 5 16 (a) 2:56PM Surface Mid-depth Bottom 3 4 4 Apr. 27 (a) 3:10AM Surface Mid-depth Bottom 320 5,950 80 5,950 (a) 3:35AM Surface Mid-depth Bottom 80 5,750 7 5,300 (a) 4:05AM Surface Mid-depth Bottom 33 6,200 650 6,400 (a) 4:05PM Surface Mid-depth Bottom 2,050 4,700 300 2,800 Table 2 (continued) Tide cyolo: high tide to one hour after Parts per million Date Position Stations 1936 8 9 10 11 Apr. 27 (a) 4:35PM Surface Mid-depth Bottom 30 4,900 42 4,950 Apr# 28 (a) 4:15AM Surface Mid-depth Bottom 11 2,300 5,600 7 930 5,150 (a) 4:50AM Surface Mid-depth Bottom 5 1,450 5,250 7 1,020 4,800 (a) 5:20PM Surface Mid-depth Bottom 2,400 4,700 820 3,500 (a) 5:50PM Surface Mid-depth Bottom 160 5,500 ' 820 5,600 Apr# 29 (a) 5:19AM Surface Mid-depth Bottom 10 2,900 5,000 9 2,000 5,000 (a) 5:50AM Surface Mid-depth Bottom 51 5,400 6,000 74 2,600 5,000 (a) 6:20AM Surface Mi d-depth Bottom 9 3,700 5,600 128 5,300 6,400 (a) 6:20PM Surface Mid-depth Bottom 500 6,900 1,100 590 2; 600 6,250 (a) 6:50PM Surface Mid-depth Bottom 3,400 8,150 2,400 4,050 7,050 May 1 7:20AM Surface Mid-depth Bottom 7 400 2,600 May 4, 5, 6, 7, 8, - Samples from all depths - Maximum 25# Table 2 (oontinuod) Tido oyolii high tide to ono hour aftor Date 1936 May 9 (a) 12:20AM (a) 12:50AM (a) 12:36PM (a) 1:05m (a) 1:35PM (d) 12:41PM May 10 (a) 1:05AM (a) 1:35AM (a) 1:23PM (a) 1:50PM (d) 1:32PM Parts per million Position Stations 8 9 10 11 Surface 2 3 Mid-depth 3 4 Bottom 1,010 11 Surface 3 3 Mid-depth 14 6 Bottom 4,600 4,050 Surfaco 3 4 Mid-depth .4 5 Bottom 4 45 Surface 4 5 Mid-depth 4 11 Bottom 3 2,820 Surface 4 3 Mid-depth 4 5 Bottom 17 17 Surface 4 Mid-depth 5 Bottom 5 Surface 27 11 Mid-depth 71 47 Bottom 80 470 Surface 1,110 49 Mid-depth 2,600 250 Bottom 2,830 600 Surface 8 4 Mid-depth 1,230 7 Bottom 3,300 4,950 Surface 6 4 Mid-depth 108 8 Bottom 5,700 5,500 Surface 5 Mid-depth 5 Bottom 7 Table 2 (oontinued) Tide oyolei high tide to one hour after Parts per million Date Position Stations 1936 8 9 10 11 May 11 (a) 1:29AM Surface Mid-dopth Bottom 4 4 4 3 5 5 (a) 2:05AM Surface Mid-depth Bottom 3 2 4 3 3 5 (a) 2:35AM Surface Mid-depth Bottom 3 4 4 5 3 4 (a) 2:35PM Surface Mid-depth Bottom 4 640 1,720 7 8 19 (d) 2:18PM Surface Mid-depth Bottom 4 6 730 May 12 3:10PM Surface Mid-depth Bottom 31 1,530 1,850 May 13 4:08PM Surface Mid-depth Bottom 120 1,560 6,800 May 17 7:23AM Surface Mid-depth Bottom 9 10 9 May 18 8:20AM Surface Mid-depth Bottom 8 25 294 May 19 9$12AM Surface Mid-depth Bottom 14 43 195 May 21 (a) 11:05AM Surface Mid-depth Bottom 12 5,500 10 37 6,300 Table 2 (continued) Tide oyolei high tide to one hour after Parts per million Date Position Stations 1936 8 9 10 11 May 21 (a) 11:35AM Surfaoe Mid-depth Bottom 12 340 6,000 13 180 5,300 (d) 11:02AM Surface Mid-depth Bottom 10 2,040 5,100 (a) 11:35PM Surface Mid-depth Bottom 6,650 8,400 10,500 2,300 7,000 9,500 May 22 (a) 12:05AM Surface Mid-depth Bottom- 6,150 8,900 15,200 900 9,250 4,650 (d) 11:52AM Surface Mid-depth Bottom 14 18 835 May 23 12:47PM Surface Mid-depth Bottom 18 330 1,850 May 24 1:42PM Surface Mid-depth Bottom 330 7,000 8,250 May 25 2:40PM Surface Mid-depth Bottom 332 650 1,600 May 26 3:37PM Surface Mid-depth Bottom 1,160 7,500 9,900 May 27 4:37FM Surface Mid-depth Bottom 1,250 10,750 11,300 May 2i8 (a) 5:35PM Surface Mid-depth Bottom 5,600 10,400 11,200 3,050 6,150 12,050 8 I Table 2 (continued) Tide aycle: high tide to one hour after Parts per million Date Position Stations 1936 8 9 10 11 May 28 (a) 6:05PM Surface Mid-depth Bottom 5,850 12,000 12,400 11,800 11,850 12,550 May 29 5:44AM Surface Mid-depth Bottom 1,100 6,300 7,050 May 30 6:40AM Surface Mid-depth Bottom 600 1,000 6,500 May 31 7:30AM Surface Mid-depth Bottom 1,500 9,350 10,250 June 1 8:17AM Surface Mid-depth Bottom 2,150 6,350 8,350 June 2 9:01AM Surface Mid-depth Bottom 2,250 7,700 8,200 June 3 (a) 9:35AM Surface Mid-depth Bottom 3,300 8,700 10,100 7,600 10,500 10,100 (a) 10:05AM Surface Mid-depth Bottom 4,650 10,550 10,650 4,600 10,100 11,100 (d) 9:41AM Surface Mid-depth Bottom 1,450 9,150 10,050 (a) 10:05PM Surface Mid-depth Bottom 10,400 12,950 13,300 11,950 12,750 13,600 (a) 10:35PM Surface Mid-depth Bottom 13,200 13,200 13,200 13,000 13,500 13,000 6 3 Table 2 (continued) Tido cycle: high tido to ono hour after Parts per million Date Position Stations 1936 8 9 10 11 June 4 10:29AM Surfaco Mid-dopth Bottom 1,300 9,100 9,800 June 5 11:02AM Surfaco Mid-depth Bottom 1,450 5,350 12,350 June 6 12:0l£M Surface Mid-depth Bottom 1,290 9,850 9,050 June 7 12j46PM Surface Mid-depth Bottom 2,000 8,200 3,850 June 8 1:30PM Surface Mid-depth Bottom 4,600 12,550 12,950 June 9 (a) 2:05PM Surface Mid-depth Bottom 9,000 13,000 13,950 7,000 13,550 13,650 (a) 2:35PM Surface Mid-depth Bottom 9,500 12,900 14,200 9,450 11,900 14,150 (d) 2:17PM Surfac e Mid-depth Bottom 5,900 10,800 12,650 June 10 (a) 2:05AM Surface Mid-depth Bottom 14,000 14,400 13,750 11,800 13,900 14,500 (a) 2:35AM Surface Mid-depth Bottom 13,900 14,400 14,100 14,000 13,400 14,000 (a) 3:05AM Surface Mid-depth Bottom 13,900 14,300 14,250 14,100 13,600 14,400 5 4 Table 2 (continued) Tide cyolo: high tide to ono hour after Parts por million Date Position Stations 8 9 10 11 12 1936 June 10 (d) Surface 4,050 3:07PM Mid-depth 12,850 Bottom 12,600 June 11 Surface 4,950 3:59PM Mid»depth 12,800 Bottom 12,600 June 12 Surface 3,700 4:56PM Mid-depth 12,400 Bottom 12,400 June 13 (d) Surface 1,250 5:15PM Mid-depth 2,700 Bottom 4,600 June 14 Surface 2,700 6:18AM Mid-depth 6,200 Bottom 7,850 June 15 Surfac e 4,300 7:18AM Mid-depth 10,900 Bottom 6,400 June 16 Surface 4,700 8;18AM Mid-depth 7,900 Bottom 10,300 June 17 Surface 3,100 9:15AM Mid-depth 8,950 Bottom 11,350 June 18 Surface 10:08AM Mid-depth 11,850 Bottom 12,200 June 19 Surface 1,000 11:02AM Mid-depth 4,850 Bottom 9,050 June 20 11:51AM Surface Mid-depth Bottom 1,100 7,200 7,550 5 5 Table 2 (continued) Tido oycle: high tide to ono hour aftor Parts per million Date Position Stations 1936 8 9 10 11 June 23 2:46PM Surface Mid-depth Bottom 13,350 13,850 10,100 13,300 12,550 14.000 June 27 5:43AM Surface Mid-depth Bottom 900 1,400 1,000 900 1,650 1,400 900 1,950 1,500 June 28 6:37AM Surface Mid-depth Bottom 2,500 12,650 11,650 2,500 10,100 11,750 2,100 11,200 8,700 June 29 7:26AM Surface Mid-depth Bottom 5,150 12,200 12,250 5,250 11,100 12,900 5,100 9,850 12,000 June 30 8:20AM Surface Mid-depth Bottom 9,100 9,250 10,000 9,750 9,650 9,050 July 1 9:06m Surface Mid-depth Bottom 5,600 8,250 8,500 5,300 5,750 8,900 4,900 8,700 8,500 July 2 9:54AM Surface Mid-depth Bottom 4,800 8,150 9,900 4,650 8,450 8,950 3,950 9,000 9,150 July 3 (a) 9:50AM Surface Mid-depth Bottom 4,900 10,800 11,900 (a) 10:00AM Surface Mid-depth Bottom 4,800 12,800 11,700 (a) 10110AM Surface Mid-depth Bottom 4,700 11,900 11,800 (a) 10:20AM Surface Mid-depth Bottom 6,000 11,650 12,300 5 6 Table 2 (continued) Tido cyolui hif,h tide to one hour aft< Parts per million Date Position Stations 1936 8 9 10 11 July 3 (a) 10:30AM Surface Mid-depth Bottom 6,100 4,800 13,300 (a) 10:40AM Surface Mid-depth Bottom 5,000 12,150 12,600 July 4 11:18AM Surface Mid-depth Bottom 10,050 11,250 7,950 11,000 8,800 7,400 July 9 3:13PM Surface Mid-depth Bottom 15,600 15,400 15,100 15,050 14,750 14,750 July 11 5:04PM Surface Mid-depth Bottom 15,700 14,700 15,600 15,450 15,250 14,750 July 13 6:31AM Surface Mid-depth Bottom 7,900 8,800 10,550 10,200 9,150 9,400 July 16 9:14AM Surface Mid-depth Bottom 4,800 12,500 11,500 5,400 11,750 11,400 4,800 12,150 12,100 July 18 11:13AM Surface Mid-depth Bottom 7,800 13,200 13,650 8,400 12,600 13,900 7,300 8,650 13,800 July 22 (a) 1:40PM Surface Mid-depth Bottom 9,350 15,550 15,950 (a) 1:50PM Surface Mid-depth Bottom 9,650 9,850 15,850 (a) 2:00PM Surface Mid-depth Bottom 8,500 15,550 15,900 5 7 Tabic 2 (continued) Tide cyclos high tide to ono hour after Parts per million Date Position Stations 8 9 10 11 1936 July 22 (a) 2:10PM Surface Mid-death Bottom 10,600 15,650 12,650 (a) 2:20PM Surface Mid-depth Bottom 10,700 15,550 15,900 Aug. 27 7:15AM Surface Mid-depth Bottom 8,100 13,200 12,750 6,750 13,100 13,150 6,150 12,350 11,250 Aug. 28 8:06AH Surface Mid-depth Bottom 6,800 12,500 12,800 7,400 13,000 12,450 6,100 9,650 6,950 Si rH CO • o -p •• Ph CO 0 CO Surface Mid-depth Bottom 5,650 12,500 12,150 6,000 12,900 13,000 5,900 12,700 12,900 Oct. 15 11:19AM Surface Mid-depth Bottom 8,350 14,300 14,950 Oct. 20 2:34PM Surface Mid-depth Bottom 700 1,500 7,500 1,100 6,800 6,400 900 290 2,500 Oct. 21 2:30PM Surface Mid-depth Bottom 700 6,550 8,300 600 6,659 8,400 900 3,100 8,800 Oct. 25 6:03AM Oct. 26 7:48AM Surface 4,700 3,050 2,150 Mid-depth 11,150 9,600 . 10,550 Bottom 10,500 10,850 5,600 Surface 3,900 4,200 3,600 Mid-depth 9,500 8,750 7,850 Bottom 10,800 11,300 10,500 Oct. 29 Surface 10,200 2,300 5,800 9:16AM Mid-depth 12,550 12,050 12,500 Bottom 12,600 12,700 10,600 5 8 Table 2 (continued) Tide cyclei high tide to one hour after Parts per million Date Position Stations 1936 8 9 10 11 Nov. 3 2:40PM Surface Mid-depth Bottom 3,900 7,700 10,300 Nov. 8 6:34AM Surface Mid-depth Bottom 990 2,600 9,600 150 2,200 7,400 14 2,650 4,850 Nov. 9 7:20AM Surface Mid-depth Bottom 146 1,620 5,500 141 1,800 6,450 170 1,250 5,400 Nov. 10 8:03AM Surface Mid-depth Bottom 410 8,250 9,300 520 7,900 9,150 700 7,200 9,500 Nov. 11 8:54AM Surface Mid-depth Bottom 700 8,100 9,850 850 6,400 8,100 650 3,850 7,550 Nov. 14 10:35AM Surface Mid-depth Bottom 10,750 11,000 11,300 7,950 11,350 10,700 4,850 9,950 2,900 Dec. 16 (a) 12:45PM Surface Mid-depth Bottom (a) 12»48PM Surface Mid-depth Bottom (a) 12:51PM Surface Mid-depth Bottom 1937 Jan. 13 (a) 11:44AM Surface Mid-depth Bottom 71 7,900 8,500 50 8,000 7,800 101 2,500 2,650 *12A 160 3,150 3,650 150 3,200 3,250 150 3,100 3,450 * Station 12A is known as "Perrson's Dock", 100 ft. north of Saybrook Bridge and approximately on line with station 12 on the bridges 5 9 Table 2 (continued) Tide cycle: high tide to one hour after Parts per million Date Position Stations 1937 8 9 10 11 Jan. 13 (d) 11:58AM Surface Mid-depth Bottom 48 8,000 8,700 Mar. 12 10:48AM Surface Mid-depth Bottom 4,100 12,900 12,100 Mar. 13 11:37AM Surface Mid-depth Bottom 2,700 11,500 13,500 Mar. 14 12:06PM Surface Mid-depth Bottom 5,900 11,400 12,300 Mar. 16 1:50PM Surface Mid-depth Bottom 1,600 4,700 7,400 Mar. 23 8:55AM Surface Mid-depth Bottom 38 700 6,950 Mar. 24 (d) 9:26AM Surface Mid-depth Bottom 360 8,450 9,000 (a) 9:10AM Surface Mid-depth Bottom 53 7,700 9,350 31 8,400 8,900 121 7,300 7,800 Mar. 25 (d) 9:59AM Surface Mid-depth Bottom 1,900 9,700 11,100 (a) 9:35AM Surface Mid-depth Bottom 700 10,300 9,400 700 9,100 10,500 Mar. 31 1:52PM Surface Mid-depth Bottom 3,300 8,600 10,000 6 0 Table 2 (continued) Tide cycle: high tide to one hour after Parts per million 11 Date Position Stations 8 9 10 1937 Apr. 1 Surface 620 2:43PM Mid-depth 780 Bottom 4,700 Apr. 2 Surface 1,400 3:55PM Mid-depth 6,300 Bottom 10,000 Apr. 8, 10, - Samples from all depths - Maximum 7. Apr. 12 (d) Surface 3 11:47AM Mid-depth 3 Bottom 4 12 (a) Surface 5 3 5 11:29AM Mid-depth 5 5 5 Bottom 2,100 5 19 Apr. 13 (d) Surface 3 12:37PM Mid-depth 7 Bottom 340 (a) Surface 4 8 6 12:23PM Mid-depth 4 7 4 Bottom 900 2,300 2,500 Apr. 15, 16, 17, 21, - Samples from all depths - Maximum 23. Apr. 22 (a) Surface 3 9:00AM Mid-depth 77 Bottom 1,800 (a) Surface 1 9:10AM Mid-depth 440 Bottom 1,800 (a) Surface 3 9:20AM Mid-depth 25 Bottom 3,300 (a) Surface 3 9:30AM Mid-depth 5 Bottom 200 6 1 Table 2 (continued) Tide cycle: high tide to one hour after Parts per million Date Position Stations 8 9 10 11 12 1937 Apr. 25, 27, 30, May 1, 5, 6, 7, - Samples from all depths - Maximum 4. May 8 (d) Surface 3 9:08AM Mid-depth 22 Bottom 2,300 (a) Surface 43 6 8:38AM Mid-depth 44 5 Bottom 1,340 8 9 May 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 29, 30, 31, - Samples from all depths - Maximum 5; Except: Sta. 9, - May 14,,B - 7,600. June 1 4:29PM Surface Mid-depth Bottom 35 4,100 10,700 June 2 (a) 4:08AM Surface Mid-depth Bottom 1,100 5,900 6,200 1,200 11,900 6,500 (d) 5:24PM Surface Mid-depth Bottom- 460 8,100 10,100 June 3 5:30AM Surface Mid-depth Bottom 216 5,150 7,150 June 4 6:38AM Surface Mid-depth Bottom 680 11,800 10,100 June 5 7:26AM Surface Mid-depth Bottom 1,520 5,000 8,000 June 6 8:25AM Surface Mid-depth Bottom 36 2,550 7,800 June 7 (d) 9: 24AM Surface Mid-depth 450 8,900 Table 2 (continued) Tide cyoloi high tido to one hour after Parts per million Date Position Stations 1937 8 9 10 11 June 7 (a) 9:20AM Surface Mid-depth Bottom 280 7,050 8,450 590 6,750 11,450 440 5,100 7,550 June 8 10:17AM Surface Mid-depth Bottom 380 5,600 2,800 June 9 11:07AM Surface Mid-depth Bottom 690 8,350 9,350 June 10 12:02PM Surface Mid-depth Bottom 2,010 9,900 11,800 June 11 (a) 12:40PM Surface Mid£depth Bottom 1,100 10,500 10,600 (a) 12:50PM Surface Mid-depth Bottom 1,050 10,400 9,950 (a) 1:00PM Surface Eid*depth Bottom 940 10,900 10,650 June 12 1:54PM Surface Mid-depth Bottom 820 8,000 8,700 June 13 2:51PM Surface Mid-depth Bottom 400 7,400 8,600 June 14 3:48PM Surface Mid-depth Bottom 780 4,400 6,900 June 15 (d) 5:02PM Surface Mid-depth Bottom 300 8,600 7,800 Table 2 (continued) Tide oyolei hifch tide to one hour after Date 1937 June 15 (a) 4:28PM June 16 (d) 5:43PM (a) 5:22PM June 17 6:D2AM June 18 (d) 7:00AM (a) 8:43AM June 19 7:53AM June 20 (d) 8:40AM (a) 8:32AM June 21 (a) 9:48AM (d) 10:01AM Parts por million Position Stations 8 9 10 11 Surface Mid-depth Bottom 180 5,500 9,000 180 5,700 8,800 Surface Mid-depth Bottom 520 4,700 10,600 Surface Mid-depth Bottom 520 4,100 10,000 Surface Mid-depth Bottom 200 9,900 11,100 Surface Mid-depth Bottom 720 9,600 8,400 Surface Mid-depth Bottom 400 7,800 9,200 860 7,400 8,900 Surface Mid-depth Bottom 1,700 8,980 8,750 Surface Mid-depth Bottom 1,620 7,800 7,800 Surface Mid-depth Bottom 1,300 4,350 7,250 1,040 6,700 7,350 Surface Mid-depth Bottom 45 3,100 3,100 47 1,440 2,800 Surface Mid-depth Bottom 35 1,360 1,200 500 7,400 6,800 460 5,800 9,700 680 1,100 9,400 45 1,580 4,500 6 4 Table 2 (continued) Tide cyclo: high tide to one hour after Parts por million Date Position Stations 8 9 10 11 12 1937 June 22 (a) Surfaco 27 63 41 10:28AM Mid-depth 1,400 1,020 460 Bottom 3,000 2,200 3,700 (d) Surface 63 10;42AM Mid-depth 600 Bottom June 23 (d) Surface 7 11:22AM Mid-depth 1,760 Bottom 6,300 (a) Surface 13 9 9 10:58AM Mid-depth 27 11 2,100 Bottom 199 4,800 5,000 June 24 (a) Surface 11 9 7 11:43 Ail Mid-depth 5,000 2,100 1,000 Bottom 4,600 4,400 4,400 (d) Surface 7 12;02PM Mid-depth 2,800 Bottom 4,800 June 25 (a) Surface 11 17 12 12:34PM Mid-depth 199 360 Bottom 3,000 3,500 4,700 (d) Surface 15 12:42PM Mid-depth 240 Bottom 4,000 June 26 (a) Surface 50 47 39 1:06PM Mid-depth 6,000 6,000 5,500 Bottom 8,000 8,700 7,900 (d) Surface 93 1:23PM Mid-depth 3,300 Bottom 9,200 June 27 (a) Surface 320 300 240 1:48PM Mid-depth 3,400 5,600 3,400 Bottom 6,300 6,900 8,000 (d) Surface 440 2:04PM Mid-depth 4,900 Bottom 8,100 6 5 Table 2 (continued) Tide cyclo: high tide to one hour aft' Parts per Million Date Position Stations 1937 8 9 10 11 June 28 (d) 2j48PM Surface Mid-depth Bottom 1,140 9,170 13,950 (a) 2:38PM Surface Mid-depth Bottom 1,850 11,850 13,700 1,850 10,500 8,850 1,050 13,450 10,650 June 29 (d) 3:33PM Surface Mid-dopth Bottom 2,100 5,700 5,600 (a) 3;20PM Surface Mid-depth Bottom 2,700 10,200 11,600 2,100 11,100 10,950 4,850 11,150 11,250 June 30 (a) 4:14PM Surface Mid-depth Bottom 5,500 12,100 11,200 2,800 11,700 10,700 2,500 11,100 11,900 (d) 4:24PM Surface Mid-depth Bottom 3,200 13,300 14,600 July 4 (d) 7:42AM Surface Mid-depth Bottom 25 33 5,100 (a) 7:34AM Surface Mid -depth Bottom 25 41 2,600 27 31 3,200 27 69 3,600 July 5 (d) 8-.42AM Surface Mid-depth Bottom 51 4,600 7,100 (a) 8:29AM Surface Mid-depth Bottom 3,900 79 5,500 41 4,500 6,500 37 4,400 7,900 July 6 9:39AM Surface Mid-depth Bottom 123 5,550 8,850 6 Table 2 (continued) Tide oyclot Date Position 1937 8 July 7 10:34AM Surface Mid-depth Bottom • July 8 (a) 11:08AM Surface Mid-depth Bottom 2,000 13,900 14,650 (d) 11:27AM Surface Mid-depth Bottom July 9 (d) 12:19PM Surface Mid-depth Bottom (a) 12:03PM Surface Mid-depth Bottom 3,350 12,150 13,000 July 10 (a) 1:04PM Surface Mid-depth Bottom 3,500 12,400 11,550 (d) 1:12PM Surface Mid-depth Bottom (a) 12:20PM Surface Mid-depth Bottom (a) 12:30PM Surface Mid-depth Bottom (a) 12:40PM Surface Mid-depth Bottom (a) 12:50PM Surface Mid-depth Bottom hifth tide to ono hour after Parts por million Stations 9 10 11 12 500 9,300 9,600 2,800 13,900 13,850 3,600 13,050 14,250 2,300 10,200 13,500 4,100 10,700 12,500 4,850 13,800 11,900 4,550 11,750 12,800 3,800 11,900 11,250 7,200 12,000 12,250 4,000 7,200 10,500 7,600 13,100 15,000 6,000 14,400 15,200 5,400 13,500 15,100 7,300 15,100 15,100 6 7 Table 2 (continued) Date Position Tide cyclos high tide to ono hour after Parts per million Stations 8 10 11 1937 Jply 10 (a) 1:00PM (a) 1:10PM July 11 (a) 1:48PM (d) 2:03PM July 12 (a) 2:33PM 2:00FM (a) 2:15PM (a) 2;36PM (d) 2:30PM (a) (a) 2:45PM July 13 (a) 3:28PM Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom 5,450 11,700 12,150 5,200 14,100 13,600 3,000 14,100 15,000 5,100 14,100 15,100 8,600 13,800 15,400 4,500 9,800 13,100 4,300 13,800 14,100 8,100 13,800 14,500 7,900 15,400 15,200 8,300 15,900 15,500 6,500 14,100 13,800 9,100 15,700 15,700 10,100 15,600 15,500 6,000 14,900 16,000 3,350 11,850 12,150 5,500 14,700 15,300 6 '8 Table 2 (continuod) Tide oyoloi high tido to one hour after Parts per million Date Position Stations 8 9 10 11 12 1937 July 13 (a) 2:50PM Surfaoe Mid-depth Bottom 9,800 13,600 13,400 (a) 3:00PM ^urfaco Mid-depth Bottom 9,400 13,700 13,600 (a) 3:10PM Surface Mid-depth Bottom 6,700 13,400 14,000 (a) 3:20PM Surface Mid-depth Bottom 9,700 12,100 13,300 (a) 3:30PM Surface Mid-depth Bottom 12,800 14,400 14,400 (a) 3:40PM Surface Mid-depth Bottom 13,400 14,600 14,800 (d) 3j48PM Surface Mid-depth Bottom 5,500 15,000 15,000 (a) 3:50PM Surface Mid-depth Bottom 7,400 13,800 15,200 July 14 (a) 3:45PM Surface Mid-depth Bottom 11,100 10,500 10,700 (a) 4:00PM Surface Mid-depth Bottom 6,000 13,000 12,900 (a) 4:15PM Surface Mid-depth Bottom 12,500 13,300 12,700 6 9 Tablo 2 (continued) Tide cycle: high tido to ono hour nftc Part a por million Dato Position 'Stations 1937 8 9 10 11 July 14 (a) 4:30PM Surface Mid-dopth Bottom 4,000 12,000 13,100 (a) 4:45PM Surface Mid-dopth Bottom 4,200 13,000 13,100 (a) 3:53AM Surface Mid-depth Bottom 3,400 16,300 11,150 2,600 10,900 12,100 1,400 11,150 11,600 (a) 4:04AM Surface Mid-depth Bottom 2,100 11,400 11,400 July 15 (a) 4:45AM Surface Mid-depth Bottom 1,300 1,200 11,700 900 6,700 10,550 900 3,800 9,250 (d) 5:02AM Surface Mid-depth Bottom 920 11,900 12,600 July 16 (a) 5:29AM Surface Mid-depth Bottom 620 5,200 6,600 980 7,800 8,300 800 7,700 8,000 (d) 6:00AM Surface Mid-depth Bottom 1,050 4,450 9,450 (a) 5:00AM Surface Mid-depth Bottom 960 9,300 9,600 (a) 5:10AM Surface Mid-depth Bottom 2,050 8,700 10,050 (a) 5:20AM Surface Mid-depth Bottom 1,170 9,450 9,500 Table 2 (continued) Tide oyolo: hi.^h tide to ono hour after Dato 1937 July 16 (a) 5:30AM (a) 5:40AM (a) 5:50AM (a) 6:00AM July 17 (d) 7-.00AM (a) 6:38AM (a) 6:10AM (a) 6:20AM (a) 6:30AM (a) 6:40AM (a) 6:50AM Parte pur million Position Stations 8 9 10 11 Surface 970 Mid-depth 9,650 Bottom 9,700 Surface 1,020 Mid-depth 10,100 Bottom 10,650 Surface 1,050 Mid-depth 9,400 Bottom 10,250 Surface 1,100 Mid-depth 10,200 Bottom 10,450 Surface 1,880 Mid-depth 7,700 Bottom 13,400 Surface 1,800 3,100 1,100 Mid-depth 9,600 10,300 9,200 Bottom 10,000 10,300 11,000 Surfa.ce 3,000 Mid-depth 12,500 Bottom 12,600 Surface 3,100 Mid-depth 13,100 Bottom 13,400 Surface 5,200 Mid-depth 13,000 Bottom 13,600 Surface 3,700 Mid-depth 13,000 Bottom 13,400 Surface 2,800 Mid-depth 13,300 Bottom 13,900 7 1 Table 2 (continued) Tido oyclo: high tido to ono hour aft< Parts por million Date Position Stations 1937 8 9 10 11 July 17 (a) 7sOOAM Surface Mid-depth Bottom 4,900 13,800 14,000 July 18 (a) 7:46AM Surface Mid-depth Bottom 3,100 9,000 11,000 2,200 10,300 11,300 2,300 10,100 11,200 (d) 7:55AM Surface Mid-depth Bottom 2,400 11,000 11,300 July 19 (a) 8:33AM Surface Mid-depth Bottom 4,050 11,200 11,800 6,400 11,000 11,550 3,850 11,100 10,800 (d) 8:49AM Surface Mid-depth Bottom 4,750 10,450 11,350 July 20 (a) 9:19AM Surface Mid-depth Bottom 4,000 11,400 12,000 4,000 11,000 11,800 3,100 10,000 12,200 (d) 9:35AM Surface Mid-depth Bottom 4,380 11,700 11,450 (a) 8:45AM Surface Mid-depth Bottom 5,950 11,200 12,000 (a) 9:OOAM Surface Mid-depth Bottom 6,050 9,900 11,300 (a) 9:15AM Surface Mid-depth Bottom 10,200 12,400 13,000 (a) 9:30AM Surface Mid-depth Bottom 6,050 12,900 13,000 7 2 Table 2 (continued) Tide cycle: high tide to one hour after Parts per million Date Position 1937 8 9 July 21 (a) 9:58AM Surface Mid-depth Bottom 4,700 11,650 11,700 4,600 9,800 13,100 (d) 10:06AM Surface Mid-depth Bottom 6,750 12,550 12,400 (a) 9:20AM Surface Mid-depth Bottom 5,200 10,900 11,400 (a) 9:30AM Surface Mid-depth Bottom 4,000 11,600 11,600 (a) 9:40AM Surface Mid-depth Bottom 7,100 12,900 12,900 (a) 9:50AM Surface Mid-depth Bottom 9,800 12,800 13,100 (a) 10:00AM Surface Mid-depth Bottom 6,900 12,400 13,000 (a) 10:10AM Surface Mid-depth Bottom I • 10,500 13,000 13,500 July 22 (a) 10:48AM Surface Mid-depth Bottom 3,050 8,400 10,500 4,400 10,800 11,500 (d) 10:56AM Surface Mid-depth Bottom 4,500 9,200 11,700 (a) 10:15AM Surface Mid-depth Bottom 8,400 12,500 12,900 Stations 10 11 4,250 9,200 10,100 12 4,250 10,450 5,850 Tabic 2 (continued) Tide cycle: high tide to ono hour aftor Parts por million Date Position Stations 1937 8 9 10 11 July 22 (a) 10:30AH Surface Mid-depth Bottom 6,700 13,000 13,200 (a) 10:45AH Surface Mid-depth Bottom 7,100 12,600 13,600 July 23 (a) 11:18 AM Surface Mid-depth Bottom 4,250 12,450 12,800 3,400 12,700 12,950 * 5,400 13,000 13,250 (d) 11:35AM Surface Mid-depth Bottom 3,600 12,400 12,700 (a) 10:40AM Surface Mid-depth Bottom 5,000 11,350 12,200 (a) 10:50AM Surface Mid-depth Bottom 9,300 13,150 13,150 (a) 11:00AM Surface Mid-depth Bottom 8,600 13,600 13,250 (a) 11:10AM Surfac e Mid-depth Bottom 6,700 13,850 13,850 (a) 11:20AM Surface Mid-depth Bottom 4,900 13,850 13,650 (a) 11:30AM Surface Mid-depth Bottom 4,600 13,500 14,050 July 24 (d) 12:14PM Surface Mid-depth Bottom 4,700 12,600 11,600 (a) 11:58AM Surface Mid-depth Bottom 4,000 11,650 11,900 4,900 12,800 13,200 5,150 13,100 13,400 Table 2 (continued) Tide cycle: high tide to one hour after Parts per million Date Position Stations 8 9 10 11 1937 July 25 (a) 12:00AM Surface Mid-depth Bottom 8,400 14,000 14,200 (a) 12:10PM Surface Mid-depth Bottom 10,000 14,300 14,700 (a) 12:20PM Surface Mid-depth Bottom 6,300 14,300 14,200 (a) 12:30PM Surface Mid-depth Bottom 8,300 14,100 14,600 (a) 12:40PM Surface Mid-depth Bottom 9,200 14,800 14,700 (a) 12:50PM Surface Mid-depth Bottom 7,900 14,700 14,900 July 27 (a) 1:15PM Surface Mid-depth Bottom 8,700 14,600 14,500 (a) 1:30PM Surface Mid-depth Bottom 12,200 14,300 14,500 (a) 1:45PM Surface Mid-depth Bottom 8,600 14,400 14,800 (a) 2:00PM Surface Mid-depth Bottom 9,200 14,600 15,100 (a) 2:15PM Surface Mid-depth Bottom 12,400 14,900 14,900 7 5 Table 2 (continued) Tide cycle: high tide to one hour after Parts per million Date Position Stations 8 9 10 11 12 1937 July 28 (a) Surface 9,800 2:10PM Mid-depth 15,100 Bottom 15,100 (a) Surface 9,600 2:20PM Mid-depth 15,400 Bottom 15,500 (a) Surface 9,000 2:30PM Mid-depth 15,400 Bottom 14,900 (a) Surface 7,800 2;40PM Mid-depth 15,300 Bottom 15,400 (a) Surface 8,700 2:50PM Mid-depth 15,400 Bottom 15,400 (a) Surface 7,500 3:00PM Mid-depth 15,300 Bottom 15,500 July 29 (a) Surface 11,800 3:00PM Mid-depth 14,800 Bottom 15,400 (a) Surface 11,200 3:15PM Mid-depth 15,600 Bottom 15,200 (a) Surface 10,600 3:30PM Mid-depth 15,850 Bottom 15,850 (a) Surface 10,050 3:55PM Mid-depth 14,900 Bottom 15,850 July 30 (a) Surface 4,400 3:15PM Mid-depth 9,100 Bottom 9,400 7 6 Table 2 (continued) Tide cycles high tide to one hour after Parts per million Date Position Stations 8 9 10 11 1937 July 30 (a) 3:30PM Surfaoe Mid-depth Bottom 8,200 12,200 11,700 (a) 3:45PM Surface Mid-depth Bottom 6,200 12,100 12,800 (a) 4:00PM Surface Mid-depth Bottom 9,600 12,700 12,600 (a) 4:15PM Surface Mid-depth Bottom 5,800 12,600 12,800 July 31 (a) 5:00PM Surface Mid-depth Bottom 13,100 15,900 15,900 (a) 5:15FM Surface Mid-depth Bottom 13,100 15,700 16,000 (a) 5:30PM Surface Mid-depth Bottom 13,500 15,200 16,000 (a) 5:45PM Surface Mid-depth Bottom 12,900 16,700 16,000 Aug. 1 (a) 6:00PM Surface Mid-depth Bottom 12,300 15,800 15,800 (a) 6:15PM Surface Mid-depth Bottom 15,100 15,900 16,000 (a) 6:30PM Surface Mid-depth Bottom 14,800 15,900 16,000 7 7 Table 2 (continued) Tide cycle: high tide to one hour after Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 1 (a) Surfabe 14,900 6:45PM Mid-depth 16,100 Bottom 15,800 (a) Surface 13,500 7:00PM Mid-depth 15,700 Bottom 15,500 Aug. 2 (a) Surface 8,000 6:30AM Mid-depth 13,100 Bottom 13,300 (a) Surface 8,400 6:45AM Mid-depth 13,300 Bottom 13,900 (a) Surface 7,300 7:00AM Mid-depth 13,300 Bottom 13,800 (a) Surface 9,400 7:15AM Mid-depth 14,000 Bottom 13,700 Aug. 3 (a) Surface 4,900 7j30AM Mid-depth 10,800 Bottom 16,300 (a) Surface 4,900 7:45AM Mid-depth 10,500 Bottom 12,300 (a) Surface 10,000 8:00AM Mid-depth 13,900 Bottom 13,800 (a) Surface 8,300 8:15AM Mid-depth 13,600 Bottom 13,800 (a) Surface 7,600 8:30AM Mid-depth 13,600 Bottom 14,000 7 8 Table 2 (continued) Tide cycles high tide to one hour after Parts per million Date Position Stations 8 9 10 11 1937 Aug. 3 (a) Surface 13,300 8:00PM Mid-depth 15,000 Bottom 15,000 (a) Surface 14,700 8:15PM Mid-depth 15,300 Bottom 15,200 (a) Surface 15,100 8:30PM Mid-depth 16,000 Bottom 15,300 (a) Surface 15,000 8:45PM Mid-depth 15,700 Bottom 15,600 (a) Surface 15,600 9:00PM Mid-depth 15,900 Bottom 15,700 Aug. 4 (a) Surface 7,100 8:30AM Mid-depth 13,400 Bottom 13,350 (a) Surface 7,400 8:40AM Mid-depth 13,150 Bottom 13,550 (a) Surface 7,700 8:50AM Mid-depth 14,000 Bottom 14,050 (a) Surface 8,000 9:00AM Mid-depth 13,150 Bottom 13,800 (a) Surface 7,450 9:10AM Mid-depth 13,900 Bottom 13,900 (a) Surface 5,750 9;20AM Mid-depth 14,700 Bottom 14,700 7 0 Table 2 (continued.) Tide oyolo: high tide to one hour after Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 5 (a) Surface 7,300 9:30AM Mid-depth 11,800 Bottom 13,500 (a) Surface 8,000 9:45AM Mid-depth 13,200 Bottom 13,600 (a) Surface 7,500 10:00AM Mid-depth 13,600 Bottom 14,000 (a) Surface 10,300 10:15AM Mid-depth 14,000 Bottom 14,200 8 0 Table 3 Tide cyolo: ono to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1934 Oct. 12 Surface 4,625 5,875 4,525 6,775 6,725 2:30PM Mid-depth 15,700 15,650 14,050 15,800 14,850 Bottom 15,700 15,700 15,600 15,850 15,800 Oct. 23 Surface 6,500 6,600 6,150 7,000 8,900 12:15PM Mid-depth 16,300 16,500 16,400 16,100 15,100 Bottom 16,450 16,550 16,550 16,700 16,450 Oct. 26 Surface 11,500 9,400 8,900 8,850 6,800 2:20PM Mid-depth 16,650 16,170 16,500 16,380 16,100 Bottom 16,550 16,600 16,500 16,300 16,400 Oct. 27 Surface 1,750 2,950 3,820 3,750 4,300 3:45PLI Mid-depth 14,950 9,750 14,400 14,150 Bottom 15,200 15,050 15,150 15,550 14,900 Oct. 28 Surface 1,040 960 1,150 1,150 1,950 4:30FM Mid-depth 12,880 5,100 1,400 12,600 3,400 Bottom 13,750 13,200 13,000 13,700 12,150 Oct. 29 Surface 4,100 3,950 4,050 3,700 4,450 5:40PM Mid-depth 1,400 6,150 Bottom 15,250 14,450 14,100 15,250 12,650 Nov. 8 Surface 235 160 414 345 2,750 12:20PM Mid-depth 14,000 13,850 8,750 13,450 5,550 Bottom 14,550 14,300 14,050 14,400 13,150 Nov. 21 Surface 5,400 7,900 10,100 13,400 7,550 12:15PM Mid-depth 16,600 16,850 16,650 17,150 16,900 Bottom 16,700 16,950 17,100 17,100 16,900 Nov. 22 Surface 2,050 1,650 1,850 2,000 1,350 12:35PM Mid-depth 4,350 2,750 2,850 4,750 2,750 Bottom 15,800 10,400 15,500 16,200 15,400 Dec. 7 Surface 161 102 72 90 880 12:20PM Mid-depth 13,600 14,100 157 2,150 9,050 Bottom 14,600 14,650 13,950 15,100 13,250 Dec. 20 Surface 79 25 20 20 190 2:30PM Mid-depth 40 20 25 25 185 Bottom 155 25 30 40 180 8 1 Table 3 (continued) Tide oyole: one to two hours after high tide. Parts per million Date Position Stations 1934 8 9 10 11 12 Dec. 21 12:00AM Surface Mid-depth Bottom 1,350 14,650 1,400 12,400 14,250 1,770 13,500 14,150 2,230 13,800 14,750 1,970 12,800 13,500 Dec.24 2:10PM Surface Mid-depth Bottom 950 12,700 13,050 800 12,350 12,800 630 2,000 12,300 565 11,000 13,050 1,235 6,200 11,250 1935 Jan. 5 12:20PM Surface Mid-depth Bottom 3,800 14,250 14,700 2,450 9,650 14., 450 2,300 2,450 13,300 15,100 4,150 14,450 13,200 Jan. 8 2:20PM Surface Mid-depth Bottom 2,450 14,650 15,600 3,500 15,200 15,650 3,650 13,050 15,400 8,550 15,250 15,500 11,800 13,550 15,500 Jan. 23 2:20PM Surface Mid-depth Bottom. 350 11,250 14,050 98 12,900 13,750 65 500 13,000 134 12,200 13,850 460 8,500 11,600 Feb. 4 12:15PM Surface Mid-depth Bottom 950 13,550 15,100 720 14,200 15,000 1,650 14,150 15,200 550 13,400 15,000 Feb. 6 2:25PM Surface Mid-depth Bottom 670 1,200 12,000 590 800 13,100 670 11,200 14,100 660 5,800 13,950 Feb. 7 2:30PM Surface Mid-depth Bottom 490 11,650 13,650 370 6,600 12,900 320 2,100 8,850 330 6,600 13,000 250 380 13,450 Feb. 18 12:05PM Surface Mid-depth Bottom 50 12,000 12,650 31 10,700 12,200 66 1,800 12,100 42 10,600 12,700 500 3,550 10,350 Feb. 21 2:25PM Surface Mid-depth Bottom 38 8,150 2,150 17 615 11,850 19 35 9,550 55 195 12,450 490 340 3,750 Feb. 22 2:15FM Surface Mid-depth Bottom 102 12,900 12,850 350 11,400 12,450 71 7,150 11,800 280 10,700 13,250 2,690 5,300 10,600 8 2 Table 3 (continued) Tide cyole: one tp two hours after high tide. Parts per million Date Position Stationa 1935 8 9 10 11 12 Mar • 5 12:15PM Surface Mid-depth Bottom 370 13,000 13,900 180 12,900 14,150 300 1,550 14,400 330 3,050 13,400 490 900 13,500 Mar - 7 2:10PM Surface Mid-depth Bottom 83 950 13,900 18 85 1,650 GO 171 13,150 Mar- 8 2:20PM Surface Mid-depth Bottom 14 100 12,100 6 8 2,550 15 25 6,100 Mar- 20 12:25PM Surface Mid-depth Bottom 7 8 6,850 5 6 6 6 6 8 Mar. 23 1:35PM Surface Mid-depth Bottom 6 6 7 5 5 11 6 6 5 Apr • 3 12:05PM Surface Mid-depth Bottom 21 62 11,500 20 280 340 16 45 12,300 390 490 1,580 Apr- 4 12:35PM Surface Mid-depth Bottom 11 11,000 11,600 8 34 14 4,300 11,400 79 93 800 Apr. 5 2:15PM Surface Mid-depth Bottom 13 520 11,500 8 8 22 9 13 11,200 450 510 800 Apr. 6 1:50PM Surface Mid-depth Bottom 7 10,700 11,350 7 95 9,950 11 6,350 11,950 Apr. 10 (a) 5:45PM Surface Mid-depth Bottom 290 14,150 14,550 (a) 6:00PM Surface Mid-depth Bottom 310 14,400 11,300 8 3 Table 3 (Continued) Tide cyoles on© to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1935 Apr. 18 Surface 3 5 4 4 12:15PM Mid-depth 4 5 4 3 Bottom 6 5 5 4 Apr. 21 Surface 5 5 7 7 2:OOPM Mia-depth 11 5 7 5 Bottom 10,200 6 3,550 7 Apr- 22 Surface 4 6 5 9 2:10PM Mid-depth 10 5 5 10 Bottom 9,750 7 6 8 May 4, 5, - Samples from all depths - Maximum 5. May 18 Surface 52 78 104 155 11:00AM Mid-depth 13,000 7,400 7,900 9,900 Bottom 13,450 12,650 13,000 6,100 May 26 (a) Surface 1,370 1,330 1,210 6:08AM Mid-depth 14,150 12,650 13,600 Bottom 14,400 14,000 14,650 (a) Surface 1,120 7:00AM Mid-depth 12,900 Bottom 14,650 (a) Surface 9,350 9,700 7,450 7:08PM Mid-depth 13,200 13,250 15,500 Bottom 14,750 16,350 14,050 May 27 (a) Surface 14,100 13,550 13,300 7:08AM Mid-depth 14,700 14,250 14,750 Bottom 2,600 2,150 2,500 (a) Surface 1,850 8:00AM Mid-depth 14,750 Bottom 13,100 (a) Surface 3,950 5,200 7,150 8:08PM Mid-depth 15,000 15,100 1,535 Bottom 12,250 15,550 15,550 May 30 Surface 1,470 2,020 1,830 10:38AM Mid-depth 14,900 15,150 14,650 Bottom 15,150 15,000 15,250 8 4 Table 3 (continued) Tide cycles ono to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 1935 June 2 Surface 2,300 2,250 3,200 12:19PM Mid-depth 14,300 14,000 13,900 Bottom 14,950 14,800 June 15 Surface 440 540 750 11:03AM Mid-depth 13,650 7,550 7,650 Bottom 12,700 13,650 10,350 June 18 Surface 500 420 300 1:08PM Mid-depth 14,600 14,350 14,750 Bottom 14,900 14,300 14,850 June 28 Surface 30 10:05AM Mid-depth 2,850 Bottom 8,800 June 29 (d) Surface 94 10;53AM Mid-depth 7,450 Bottom 7,900 (a) Surface 76 55 75 11:23AM Mid-depth 12,700 10,850 11,250 Bottom 11,555 14,150 13,250 June 30 Surface 102 148 76 11:05AM Mid-depth 12,700 11,550 10,800 Bottom 13,200 12,400 13,000 July 9 Surface 56 22 31 6:05PM Mid-depth 12,250 210 660 Bottom 13,350 13,000 13,050 July 10 Surface 10 10 9 7:05AM Mid-depth 11 11 9 Bottom 12 11 11 July 16 Surface 2,650 2,850 2,050 11:23AM Mid-depth 14,750 7,900 14,450 Bottom 14,950 15,100 15,000 July 17 Surface 3,100 4,250 1,750 11:45PM Mid-depth 15,300 14,400 14,850 Bottom 15,050 14,750 14,650 Table 3 (continued) Tide oyoloi ono to two hours aftor high tido. Parts por million Da to Position Stations 1935 8 9 10 11 July 19 1:00PM Surface Mid-depth Bottom 4,700 15,100 15,950 3,750 14,250 14,100 3,600 12,550 14,300 July 25 8:01AM Surface Mid-depth Bottom 500 1,250 10,100 July 28 (d) 10:30AM Surface Mid-depth Bottom 2,650 11,450 11,600 (a) 10:50AM Surface Mid-depth Bottom 3,800 14,850 15,000 3,100 14,350 14,850 2,250 14,500 14,950 July 29 11:05AM Surface Mid-depth Bottom 6,800 15,000 15,250 10,700 14,950 14,800 11,100 15,550 15,250 July 30 11:08PM Surface Mid-depth Bottom 8,850 14,350 14,850 7,350 14,300 14,050 10,200 14,500 14,200 July 31 1:08PM Surface Mid-depth Bottom 4,000 11,500 11,900 5,150 8,300 12,500 11,050 12,850 13,000 Aug. 1 12:50PM Surface Mid-depth Bottom 5,100 14,000 14,100 5,500 13,450 14,300 6,350 12,900 14,800 Aug. 4 3:18PM Surface Mid-depth Bottom 6,050 12,000 14,100 Aug. 11 9:00AM Surface Mid-depth Bottom 4,400 8,700 13,400 Aug. 14 11:05AM Surface Mid-depth Bottom 8,900 16,200 16,200 8,900 16,200 16,200 9,300 16,100 16,400 Table 3 (continued) Tide oyole: one to two hours after high tide. Parts per million Date Position Stations 1935 8 9 10 11 Aug. 16 12:35PM Surface Mid-depth Bottom 11,100 16,400 16,300 10,200 16,400 17,300 13,000 15,900 16,150 Aug. 18 3:01PM Surface Mid-depth Bottom 7,300 12,800 13,800 Aug. 25 9:30AM Surface Mid-depth Bottom 6,550 8,400 12,300 Aug. 27 11:15AM Surface Mid-depth Bottom 12,000 16,000 15,950 12,650 15,900 16,000 14,100 15,950 16,000 Aug. 28 11:38AM Surface Mid-depth Bottom 10,000 12,200 15,800 11,000 15,900 15,800 13,900 15,700 16,000 Aug. 29 12:50PM Surface Mid-depth Bottom 6,550 16,000 15,900 10,100 15,700 15,150 9,500 16,000 15,800 Aug. 30 12:20PM Surface Mid-depth Bottom 12,300 16,300 15,900 13,850 16,350 16,400 13,200 16,100 16,200 Sept. 1 1:55PM Surface Mid-depth Bottom 8,600 14,750 15,100 Sept. 9 11:05AM Surface Mid-depth Bottom 5,800 9,300 9,650 5,350 10,850 10,650 4,550 10,700 12,350 Sept.10 11:40AM Surface Mid-depth Bottom 7,300 10,950 15,350 6,700 9,500 9,850 9,050 11,350 13,450 Sept.11 12:43PM Surface Mid-depth Bottom 4,850 6,800 8,800 4,150 6,100 8,350 4,900 7,050 9,950 Table 3 (continued) Tide oyolot Date Position 1935. 8 Sept.15 1:27PM Surface Mid-depth Bottom Sept.22 10:38AM Surface Mid-depth Bottom 4,750 11,450 15,050 Sept.24 12:48PM Surface Mid-depth Bottom 5,200 9,500 14,900 Sept.25 12:48R£ Surface Mid-depth Bottom 5,700 12,200 12,200 Sept.27 12:55PM Surface Mid-depth Bottom 7,300 14,700 14,700 Sept.29 12:51PM • Surface Mid-depth Bottom Oct. 1 1:08PM Surface Mid-depth Bottom 14,250 16,000 16,000 Oct. 6 5:29PM Surface Mid-depth Bottom Oct. 12 11:53AM Surface Mid-depth Bottom 7,700 16,100 16,600 Oct. 13 12:OOAM Surface Mid-depth Bottom 16,600 17,100 17,200 Oct. 14 1:48PM Surface Mid-depth Bottom ono to two hours after high tide. Parts per million Stations 9 10 11 12 13,950 15,450 15,800 2,400 5,050 6,450 7,550 7,600 9,650 4,700 6,100 7,800 11,400 7,800 12,600 6,200 7,700 12,000 12,000 11,700 14,600 7,300 12,200 14,600 15,050 15,000 15,500 8,550 13,850 13,850 14,800 14,250 15,800 15,600 15,900 15,800 4,350 2,150 11,550 8,100 12,200 16,200 16,700 16,400 15,700 15,700 16,900 16,000 16,600 17,100 15,350 8 8 Table 3 (continued) Tide cycle: ono to two hours aftor high tido. Parts per million Date Position Stations 1935 8 9 10 11 Oot. 15 1:43PM Surface Mid-depth Bottom 14,100 16,200 16,150 12,500 16,000 16,200 Oct. 20 6:01AM Surface Mid-depth Bottom 4,700 7,500 11,400 Oct. 27 10:40AM Surface Mid-depth Bottom 11,900 16,800 16,400 Oct. 28 12:15PM Surface Mid-depth Bottom 12,000 16,200 16,200 13,000 9,800 16,600 12,700 16,600 16,400 Oct. 29 12:30PM Surface Mid-depth Bottom 13,550 15,700 16,200 Oct. 30 1:20PM Surface Mid-depth Bottom 15,300 16,600 18,300 16,200 16,600 13,400 15,800 16,200 17,100 Nov. 11 12:05PL1 Surface Mid-depth Bottom 16,900 17,450 17,200 17,200 17,050 17,200 17,000 17,150 17,150 Nov. 13 2:05PM Surface Mid-depth Bottom 9,700 16,600 16,800 12,050 16,250 16,700 13,600 16,550 16,650 Nov. 14 2:10PM Surface Mid-depth Bottom 14,500 15,550 15,750 Nov. 24 9:24AM Surface Mid-depth Bottom 6,400 14,350 14,550 Nov. 25 11:40AM Surface Mid-depth Bottom 8,100 13,900 14,200 9,600 12,800 15,000 10.,600 15,800 15,850 8 9 Table 3 (continued) Tido cycle: ono to two hours after high tide. Parts por million Date Position Stations 1935 8 9 10 11 12 Nov. 26 12:05EM Surface Mid-depth Bottom 5,200 13,200 13,550 6,250 14,200 13,900 11,200 14,750 14,950 Nov. 28 1:35PM Surface Mid-depth Bottom 14,000 14,600 14,800 14,150 14,350 14,400 14,200 14,550 14,600 Nov. 29 2:05PM Surface Mid-depth Bottom 800 11,000 11,400 2,300 11,250 11,500 4,200 11,850 12,300 Dec. 9 11:05AM Surfaco Mid-depth Bottom 16,200 16,400 16,500 16,400 16,450 16,500 16,500 16,500 16,500 Doc. 13 2:05PM Surface Mid-depth Bottom 3,800 13,950 14,000 10,200 13,950 14,000 6,500 14,350 14,500 Dec. '24 11:15AM Surface Mid-depth Bottom 8,350 13,300 13,550 8,850 13,800 13,800 8,900 9,300 13,300 8,450 14,100 14,800 13,450 14,850 15,150 Dec. 25 11:20AM Surface Mid-depth Bottom 7,100 13,900 14,050 7,300 12,650 14,350 7,150 13,800 14,450 1936 Jan. 20 8:35AM Surface Mid-depth Bottom 2,900 11,750 13,900 Mar. 9 (a) 12:32PM Surfaco Mid-depth Bottom 700 11,650 13,000 1,550 12,850 13,500 1,450 13,700 14,100 (a) 1:27AM Surfaco Mid-depth Bottom \ 950 4,650 10,750 1,100 12,700 12,800 Mar. 10 (a) 1:11PM Surface Mid*-depth Bottom 800 10,450 11,740 1,400 10,300 9,300 2,200 9,000 12,850 9 0 Table 3 (continued) Tido cycloi ono to two hours aftor high tide. Parts por million Date Position Stations 1936 8 9 10 11 Mar- 10 (a) 2:06PM Surface Mid-depth Bottom 700 1,650 11,500 700 2,050 13,500 Mar. 11 (a) 1:48PM Surfaco Mid-depth Bottom 1,100 13,000 13,800 900 10,650 13,250 950 8,950 10,550 (a) 2:43PM Surfaco Mid-depth Bottom 500 650 10,750 750 850 13,800 Mar. 12, 13, Samplos from 16, 17, 18, 19, Apr. 3, all depths - Maximum 8 - 4, 10, 11 ■ Except: , 12, 13, Sta. 8 Apr 19, 20, . 20, B Apr. 24 (a) 2:20PM Surface Mid-dopth Bottom 9 5 1,080 6 6 6,150 (a) 2:50PM Surfaco Mid-depth Bottom 4 4 6,600 7 30 5,200 Apr. 25 (a) 2:20AM Surfaco Mid-depth Bottom 22 9,500 54 8,900 (a) 2:50AM Surfaco Mid-dopth Bottom 12 100 7,400 21 97 8,450 (a) 3:20FM Surfaco Mid-dopth Bottom 3 85 4,900 4 166 3,950 (a) 3i50PM Surfaco Mid-depth Bottom 4 5 600 4 29 4,950 Apr. 26 (a) 3:35AM Surface Mid-depth Bottom 4 24 5,450 3 12 4,300 (a) 4:05AM Surface Mid-dopth Bottom 11 260 3,350 5 9 1.850 9 1 Table 3 (continued) Tido Dato 1936 Apr. 26 (a) 4:00PM Apr- 27 (a) 4:35AM (a) 5:05AM Apr- 28 (a) 5:20AM (a) 5:50AM 6:20AM (a) (a) 6:20PM Apr. 29 (a) 6:5QAM 7:20AM (a) Position Surface Mid-dopth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-dopth Bottom Surface Mid-depth Bottom Surface Mid-dopth Bottom Surface Mid-dopth Bottom Surface Mid-dopth Bottom Surface Mid-depth Bottom cycle: one to two hours after high tide, Parts por million Stations 8 9 10 11 12 1,150 11 6,800 26 7,100 6 4,450 6,200 9 6,500 6,900 9 1,710 5,800 500 5,650 7 5,300 6,800 14 3,700 6,950 May 6, 7, 8, 9, - Samples from all depths - Maximum 6. May 10 (a) 2:20PM Surface Mid-depth Bottom 3 197 6,750 20 2 7,750 27 7,550 6 5,000 5,500 7 3,300 200 5 3,850 6,650 370 5,150 7 3,100 5,700 8 2,500 6,300 7 710 6,900 (a) Surface 2:50FM Mi d- de p th Bottom 6 219 5,800 4 3,000 6,550 9 2 Table 3 (continued) Tido cycle: one to two hours aftor high tide. Parts per million Dato Position Stations 8 9 10 11 12 1936 May 11 - Samples from all dopths - Maximum 4. May 21 Surface 10 14 12:05PM Mid-dopth 2,600 130 Bottom 7,550 6,800 May 22 Surfaco 7,050 31 1:05AM Mid-depth 2,100 1,800 Bottom 54 1,000 May 28 (a) Surfaco 1,510 3,490 6:05AM Mid-dopth 10,650 11,100 Bottom 11,750 11,950 (a) Surfaco 1,500 4,650 6:35PM Mid-depth 11,450 10,600 Bottom 11,350 11,200 (a) Surfaco 1,570 1,950 7:05PM Mid-depth 7,250 9,750 Bottom 8,550 9,150 Juno 3 (a) Surfaco 9,550 7,950 10:35AM Mid-depth 11,750 10,350 Bottom 12,150 12,700 (a) Surfaco 6,050 4,800 11:05AM Mid-dopth 12,750 11,750 Bottom 12,100 11,650 Juno 4 Surfaco 12,950 10,200 11:05AM Mid-dopth 13,800 13,300 Bottom 13,200 13,250 June 9 Surfaco 9,500 8,650 3:05PM Mid-dopth 14,150 11,900 Bottom 13,650 14,300 Juno 10 Surface 9,750 10,650 4:05AM Mid-dopth 13,500 13,700 Bottom 14,250 13,700 Juno 21 (a) 1:35PM Surfaco 2,000 3,100 Mid-depth 8,450 9,950 Bottom 11,300 11,700 3,200 9,300 11,600 Tablo 3 (continuod) Tido oyolo: ono to two hours aftor high tido. Parts por million Dato Position Stations 1936 8 9 10 11 Juno 21 (d) 1:45PM Surfaco Mid-dopth Bottom 3,350 8,450 10,650 Juno 22 (a) 2:21PM Surfaco Mid-dopth Bottom 10,400 12,700 10,000 14,000 10,800 12,500 (d) 2:35PM Surface Mid-dopth Bottom 4,900 13,400 12,800 Juno 23 3:24PM Surface Mid-depth Bottom 6,850 13,350 13,700 June 24 (a) 3:30AM Surface Mid-dopth Bottom 2,950 5,100 4,700 2,650 4,350 4,100 3,500 4,550 4,300 (d) 3:43AM Surface Mid-depth Bottom 2,950 4,350 3,700 Juno 25 (a) 4:10AM Surface Mid-depth Bottom 2,300 6,300 8,300 2,200 7,250 8,750 2,200 8,050 9,450 (d) 4:30PM Surface Mid-depth Bottom 2,800 9,450 8,450 Juno 26 (a) 4:59AM Surface Mid-depth Bottom 2,500 5,700 8,250 2,450 7,250 9,550 2,750 6,200 6,800 (d) 5:19AM Surface Mid-depth Bottom 800 3,450 4,050 Juno 27 6:10AM Surface Mid-depth Bottom 1,000 1,650 2,950 9 4 Table 3 (continued) Tide oyole: one to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1936 June 28 Surface 2,700 7:02AM Mid-depth 10,900 Bottom 11,550 June 29 Surface 5,500 7:53AM Mid-depth 11,600 Bottom 12,400 June 30 Surface 6,700 8:43AM Mid-depth 10,450 Bottom 11,400 July 1 Surface 6,700 9:31AM Mid-depth 9,800 Bottom 9,550 July 2 Surface 4,700 10:17AM Mid-depth 1,000 Bottom 9,550 July 3 (a) Surface 6,800 10:50AM Mid-depth 13,600 Bottom 13,300 (a) Surface 5,900 11:00AM Mid-depth 13,000 Bottom 13,700 (a) Surface 5,250 11:10AM Mid-depth 13,300 Bottom 13,400 (a) Surface 13,050 11:20AM Mid-depth 7,100 Bottom 12,850 (a) Surface 5,250 • 11:30AM Mid-depth 13,000 Bottom 13,650 (a) Surface 5,100 11:40AM Mid-depth 12,650 Bottom 13,800 9 5 Table 3 (continued) Date 1936 July 3 (a) 10:45AM July 4 11:47AM July 5 12:30PM July 6 1:16PM July 7 (a) 1:42PM (d) 2:02PM July 8 (a) 3:04PM (d) 3:10PM July 9 3:42PM July 10 (a) 4:14PM 4:37PM (d) Position TJrde oyole: one to two hours after high tide# Parts per million Stations Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom 8 9 4,400 3,900 5,000 10,100 6,650 11,950 4,300 11,150 11,750 6,250 12,000 13,800 9,350 14,300 15,500 8,500 9,750 13,250 13,750 14,300 13,900 9,850 13,600 14,450 8,500 12,850 10,150 13,100 13,850 8,550 9,350 13,450 10,450 13,850 15,450 13,200 14,100 11,700 12,700 11,200 14,250 14,600 10 11 3,600 7,050 9,950 9,000 13,650 14,400 10,450 11,700 14,500 13,300 14,200 12 9 6 Table 3 (continued) Date Position Tide cycle: one to two hours after high tide. Parts per million Stations 8 10 11 12 1936 July 11 5:36PM July 12 (a) 5:28AM (d) 5:58AM July 13 6:59AM July 14 (a) 7:44AM (d) 8:01AM July 16 10:20AM July 18 11:49AM July 22 (a) 2:30PM (a) 2:40PM Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom 5,350 11,700 9,600 11,400 9,600 16,900 15,650 7,000 12,000 4,600 6,300 11,050 6,900 13,000 13,200 9,650 9,450 5,600 10,600 11,800 5,250 11,400 11,000 8,450 13,550 13,650 10,100 15,650 15,900 10,400 15,350 15,950 6,300 12,300 8,950 11,900 (a) 2:50FM Surface Mid-depth Bottom 9,550 15,500 16,150 Table 3 (continued) Tide cycle: ono to two houyc after high tide. Parts per million Date Position Stations 1936 0 9 10 11 July 22 (a) 3:00PM Surface Mid-depth Bottom 7,250 15,560 16,250 (a) 3:10PM Surface Mid-depth Bottom 7,250 15,600 16,050 (a) 3:20PM Surface Mid-depth Bottom 8,100 15,500 16,000 (a) 2:48PM Surface Mid-depth Bottom 6,700 14,500 14,800 7,500 13,850 14,250 8,100 13,300 13,650 (d) 3:01PM Surface Mid-depth Bottom 9,250 13,150 13,800 July 24 (a) 4:21PM Surface Mid-depth Bottom 5,000 11,250 10,950 4,750 7,850 12,300 5,150 12,000 12,200 (d) 4:32PM Surface Mid-depth Boi?tom 4,600 11,250 12,350 July 25 11:24AM Surface Mid-depth Bottom 1,120 1,450 6,450 July 26 (a) 5:20AM Surface Mid-depth Bottom 3,250 6,800 8,850 2,150 7,050 7,200 1,950 6,400 7,800 (d) 5:36AM Surface Mid-depth Bottom 2,450 8,900 8,850 July 30 (a) 8:47AM Surface Mid-depth Bottom 6,700 9,750 12,150 5,700 10,950 12,000 6,350 11,100 13,050 9 0 Table 3 (continued) Tide oyole: ono to two hour s after hi( Parts i per million Date Position Stations 1936 8 9 10 11 July 30 (d) 9:09AM Surface Mid-depth Bottom 5,900 10,650 12,200 Aug. 1 (a) 10:54AM Surface Mid-depth Bottom 5,700 9,500 13,050 5,500 13,700 13,350 3,700 11,500 13,400 (d) 11:12AM Surface Mid-depth Bottom 5,600 10,400 13,100 Aug. 3 (a) 12:30PM Surface Mid-depth Bottom 14,650 15,150 15,200 14,800 15,150 13,800 (d) 12:41PM Surface Mid-depth Bottom 9,350 14,000 11,250 Aug. 5 (a) 1:34PM Surface Mid-depth Bottom 14,200 14,200 14,800 14,100 14,500 14,950 (d) 1:51PM Surface Mid-depth Bottom 7,150 14,400 14,500 Aug. 7 (a) 3:09PM Surface Mid-dopth Bottom 10,250 14,950 15,450 7,900 15,150 15,550 9,100 15,250 15,500 (d) 3:21PM Surface Mid-depth Bottom 8,850 15,450 15,500 Aug. 9 (a) 4:58PM Surface Mid-depth Bottom 15,900 16,050 16,000 15,900 15,600 15,400 (d) 5:15PM Surface Mid-depth Bottom 9,350 16,100 16,000 12 9 9 Table 3 (continued) Tido oyclos ono to two hours aftor high tide. Parts por million Date Position Stutions 8 9 10 11 12 1936 Aug. 11 (a) Surface 8,200 9 000 8,300 6:19AM Mid-depth 13,350 13 700 12,550 Bottom 13,800 14 100 14,150 (d) Surfaco 9 000 6:42AM Mid-depth 13 500 Bottom 13 500 Aug. 15 (a) Surface 7,250 9 750 8,800 10:24AM Mid-depth 13,100 13 250 12,100 Bottom 14,600 14 900 14,800 (d) Surfaco 8 000 10:42AM Mid-depth 13 300 Bottom 13 200 Aug. 19 (a) Surface 9,800 10 550 12,650 1:21PM Mid-depth 14,100 14 300 15,350 Bottom 14,250 14 900 15,400 (d) Surfaco 10 100 1:37PM Mid-depth 14 500 Bottom 14 300 Aug. 21 (a) Surface 11,100 13 450 12,200 2:49PM Mid-depth 16,650 16 200 16,400 Bottom 16,600 16 600 16,000 (d) Surface 13 400 3:09PM Mid-depth 16 050 Bottom 16 450 Aug. 22 (a) Surface 7,000 6 800 7,400 3:31PM Mid-depth 13,600 13 600 13,800 Bottom 15,800 15 900 16,100 (d) Surface 7 200 3:50PM Mid-depth 10 700 Bottom 15 650 Aug. 25 (a) Surface 8,200 6 900 6,500 5:38AM Mid-depth 12,500 13 500 13,000 Bottom 14,000 13 500 13,550 100 Table 3 (continued) Tide cycles Date Position 1936 8 Aug. 25 (d) 5:46AM Surface Mid-depth Bottom Aug. 26 (a) 6:21AM Surface Mid-depth Bottom 8,500 14,000 14,050 (d) 6:41AM Surface Mid-depth Bottom Aug. 27 7:38AM Surface Mid-depth Bottom Aug. 28 8:34AM Surface Mid-depth Bottom Aug. 29 (a) 9:09AM Surface Mid-depth Bottom 8,600 12,200 14,400 (d) 9:27AM Surface Mid-depth Bottom Aug. 31 (a) 10:44AM Surface Mid-depth Bottom 6,300 15,100 14,950 (d) 11:05AM Surface Mid-depth Bottom Sept. 2 (a) 12:06PM Surface Mid-depth Bottom 15,300 15,300 one to two hours after high tide Parts per million Stations 9 10 11 12 7,350 11,800 9,150 9,150 13,700 13,950 7,100 11,250 12,950 9,350 13,950 14,250 6,050 10,050 9,350 6,000 12,700 12,800 9,300 12,750 14,400 10,000 9,400 14,500 9,500 12,600 14,500 7,500 15,300 15,000 9,200 15,300 15,200 7,050 14,250 14,950 15,350 15,800 14,600 15,350 (d) 12:41PM Surface Mid-depth Bottom 6,950 13,800 15,800 101 Table 3 (continued) Tide cyole: one to two hours after hif,h tide. Parts per million Date Position Stations 8 9 10 11 12 1936 Sept. 4 (a) Surface 8,950 8 100 8,750 1:50PM Mid-depth 14,350 15 900 15,600 Bottom 15,500 15 950 15,800 (d) Surface 7 700 2:18PM Mid-depth 15 500 Bottom 15 600 Sept. 9 Surface 6 100 6:29AM Mid-depth 12 800 Bottom 11 800 Sept.11 Surface 6 600 8:38AM Mid-depth 13 500 Bottom 14 000 Sept.12 (a) Surface 7,800 9 000 8,750 9:19AM Mid-depth 12,600 14 200 14,200 Bottom 14,500 14 750 14,200 (a) Surface 9 350 9:34AM Mid-depth 14 000 Bottom 14 650 Sept.16 (a) Surface 8,500 8 600 9,200 12:05RI Mid-depth 14,350 14 500 13,900 Bottom 13,950 13 900 14,600 (a) Surface 8 900 12:27PM Mid-depth 13 800 Bottom 13 350 Sept.20 (a) Surface 3,200 4 100 4,100 2:48PM Mid-depth 12,000 11 900 11,500 Bottom 12,150 12 150 11,950 (a) Surface 4 300 3:04PM Mid-depth 12 200 Bottom 11 800 Oct. 12 Surface 5,200 5 600 7,100 9:42AM Mid-depth 8,400 11 100 11,400 Bottom 8,000 8 700 11,300 102 Table 3 (continued) Tide cycle: Date Position 1936 8 Oct. 15 (a) 11:23AM Surface Mid-depth Bottom 7,050 14,050 13,250 (d) 11:55AM Surface Mid-depth Bottom Oct. 20 3:05PM Surface Mid-depth Bottom Oct. 26 8:18AM Surface Mid-depth Bottom Oct. 28 (a) 9:44AM Surface Mid-depth Bottom 1,000 11,750 9,100 (d) 10:06AM Surface Mid-depth Bottom Oct. 30 (a) 11:34AM Surface Mid-depth Bottom 1,160 1,400 4,300 (d) 11:47AM Surface Mid-depth Bottom Nov. 1 (a) 12:54PM Surface Mid-depth Bottom 1,450 8,600 9,150 (d) 1:30PM Surface Mid-depth Bottom Nov. 3 (a) 2:44PM Surface Mid-depth Bottom 2,700 7,700 9,700 one to two hours after high tide. Parts per million Stations 9 10 11 12 7,050 13,750 14,450 7,850 14,150 14,150 1,200 1,400 6,600 4,400 9,100 10,500 1,300 5,600 11,600 1,550 7,200 10,800 950 10,200 10,700 1,160 2,550 9,000 1,410 2,850 7,950 800 1,500 7,900 2,350 5,450 9,350 1,600 6,500 10,300 1,800 7,600 10,500 3,100 7,100 6,900 105 Table 3 (continued) Date 1936 Nov. 3 (d) 3:19PM Position Tide oyolo: one to two hours after high tide. Parts per million Stations Surface Mid-depth Bottom 8 3,200 9,100 9,000 10 11 12 1937 Apr. 9 to May 22 intermittently, 14 sets of samples, Maximum 76. June 6 Surface 200 200 93 9:31AM Mid-depth 230 390 1,200 Bottom 4,200 3,400 1,340 June 19 Surface 1,020 920 480 8:39AM Mid-depth 8,400 7,900 7,050 Bottom 6,800 8,200 8,600 July 5 8:53AM Surface M:' d - depth Bottom 40 5,600 7,400 65 6,900 7,600 51 6,450 7,800 July 10 (a) 1:20PM Surface Mid-depth Bottom 6,100 13,400 14,100 (a) 1:30PM Surface Mid-depth Bottom 6,300 13,700 13,500 (a) 1:40PM Surface Mid-depth Bottom 5,800 15,100 15,500 (a) 1:50PM Surface Mid-depth Bottom 5,400 15,000 13,400 (a) 2:00PM Surface Mid-depth Bottom 4,400 15,200 15,300 (a) 2:10PM Surface Mid-depth Bottom 7,900 14,900 15,300 104 Table 3 (continued) Tide cycle: one to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 12 (a) 3:00PM Surface Mid-depth Bottom 14,900 15,300 15,800 (a) 3:15PM Surface Mid-depth Bottom 9,400 14,800 15,600 (a) 3:30PM Surface Mid-depth Bottom 6,900 15,700 15,700 (a) 3:45PM Surface Mid-depth Bottom 6,700 14,800 15,700 (a) 4:00PM Surface Mid-depth Bottom 7,300 13,800 15,500 July 13 (a) 4:00PM Surface Mid-depth Bottom 10,900 13,900 14,000 (a) 4:10PM Surface Mid-depth Bottom 6,900 13,800 13,900 • (a) 4:20PM Surface Mid-depth Bottom 6,200 11,000 14,100 (a) 4:30PM Surface Mid-depth Bottom 10,700 13,600 13,900 (a) 4:40PM Surface Mid-depth Bottom 5,200 12,700 13,700 (a) 4:50PM Surface Mid-depth Bottom 4,200 13,800 11,200 105 Table 3 (continued) Tide cycle: one to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 14 (a) Surface 2,400 5s00PM Mid-depth 12,500 Bottom 12,400 (a) Surface 2,600 5:15PM Mi d-depth 12,000 Bottom 12,400 (a) Surface 2,600 5:30PM Mid-depth 12,250 Bottom 12,700 (a) Surface 3,000 5:45PM Mi d-depth 11,850 Bottom 12,600 July 16 (a) Surface 1,090 6:10AM Mid-depth 10,200 Bottom 10,300 (a) Surface 910 6:20AM Mid-depth 10,450 Bottom 10,200 (a) Surface 900 6:30AM Mid-depth 10,400 Bottom 9,900 (a) Surface 740 6:40AM Mid-depth 9,550 Bottom 11,250 (a) Surface 710 6:50AM Mid-depth 9,550 Bottom 10,750 (a) Surface 880 7:00AM Mid-depth 10,350 Bottom 9,750 July 17 (a) Surface 2,600 7:10AM Mid-depth 13,700 Bottom 13,700 106 Table 3 (continued) Tide oyolei ono to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 17 (a) 7:20AM Surface Mid-depth Bottom 4,600 13,700 16,800 (a) 7:30AM Surface Mid-depth Bottom 2,900 13,700 13,800 (a) 7:40AM Surface Mid-depth Bottom 1,600 12,900 6,300 (a) 7:5QAH Surface Mid-depth Bottom 1,100 14,000 14,000 (a) 8:00AM Surface Mid-depth Bottom 2,800 14,200 14,000 July 20 (a) 9:45AM Surface Mid-depth Bottom 10,050 12,250 12,500 (a) 10:00AM Surface Mid-depth Bottom 8,300 13,550 12,800 (a) 10:1514.1 Surface Mid-depth Bottom 6,600 13,050 13,000 (a) 10:30AM Surface Mid-depth Bottom 4,000 12,650 12,600 July 21 (a) 10:20AM Surface Mid-depth Bottom 10,500 13,700 14,100 (a) 10:30AM Surface Mid-depth Bottom 8,000 13,300 13,300 107 Table 3 (continued) Tide cyolo: one to two hours nftor high tide. Parts por million Date Position Stations 8 9 10 11 12 1937 July 21 (a) Surface 9 800 10:40AM Mid-depth 13 600 Bottom 13 100 (a) Surface 9 600 10:50AM Mid-depth 13 300 Bottom 13 000 (a) Surface 7 100 11:00AM Mid-depth 13 000 Bottom 13 600 (a) Surface 3 200 11:10AM Mid-depth 13 000 Bottom 13 400 (a) Surface 3 400 11:2QAM Mid-depth 12 700 Bottom 13 000 July 22 (a) Surface 3 900 11:00AM Mid-depth 12 700 Bottom 13 200 (a) Surface 7 800 11:15AM Mid-depth 13 700 Bottom 12 700 (a) Surface 6 200 11:30AM Mid-depth 12 500 Bottom 13 500 (a) Surface 4 800 11:45AM Mid-depth 12 500 Bottom 12 200 July 23 (a) Surface 4 300 11:40AM Mid-depth 12 600 Bottom 13 800 (a) Surface 3 900 11:50AM Mid-depth 12 700 Bottom 12 900 108 Table 3 (continued) Tide cycle: one to two hours after high tide. Parts per million Date Position Stations 0 9 10 11 12 1937 July 23 (a) Surface 4,100 12:00AM Mid-depth 13,600 Bottom 13,500 (a) Surface 4,000 12:10PM Mid-depth 13,000 Bottom 13,500 (a) Surface 4,000 12:20PM Mid-depth 12,700 Bottom 13,400 (a) Surface 4,800 12:30PM Mid-depth 13,100 Bottom 13,800 July 25 (a) Surface 7,100 1:00PM Mid-depth 14,500 Bottom 14,900 (a) Surface 10,600 1:10FM Mid-depth 14,400 Bottom 14,500 (a) Surface 11,400 1:20PM Mid-depth 14,800 Bottom 14,800 (a) Surface 10,700 1:30PM Mid-depth 14,100 Bottom 14,700 (a) Surface 7,800 1:40PM Mid-depth 13,800 Bottom 14,800 (a) Surface 7,800 1:50PM Mid-depth 14,400 Bottom 14,600 July 27 (a) Surface 10,700 2:30PM Mid-depth 14,900 Bottom 14,800 109 Table 3 (continued) Tide cycle: one to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 27 (a) 2:45PM Surface Mid-depth Bottom 8,100 14,250 14,300 (a) 3:00PM Surface Mid-depth Bottom 7,600 14,450 14,000 (a) 3:15PM Surface Mid-depth Bottom 8,700 '14,200 14,600 July 28 (a) 3:10PM Surface Mid-depth Bottom 6,800 15,400 15,800 (a) 3:20PM Surface Mid-depth Bottom 6,500 15,200 15,800 (a) 3:30PM Surface Mid-depth Bottom 6,100 15,700 15,800 (a) 3:40PM Surface Mid-depth Bottom 7,200 14,400 15,600 (a) 4:10PM Surface Mi d-depth Bottom 4,900 14,600 15,100 July 29 (a) 4:00PM Surface Mi d-depth Bottom 10,450 15,250 13,750 (a) 4:15PK Surface Mid-depth Bottom 9,050 15,700 16,100 (a) 4:30PM Surface Mid-depth Bottom 11,950 15,900 15,650 110 Table 3 (continued) Tide oycle: one to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 29 (a) 4:45PM Surface Mid-depth Bottom 8,750 15,600 16,050 (a) 5:00PM Surface Mid-depth Bottom 7,050 15,350 15,800 July 30 (a) 4:30AM Surface Mid-depth Bottom 5,800 12,700 12,600 (a) 4:45AM Surface Mid-depth Bottom 7,100 13,100 12,700 (a) 5:00AM Surface Mid-depth Bottom 6,400 12,000 12,900 (a) 5:15AM Surface Mid-depth Bottom 4,700 12,200 12,600 July 31 (a) 6:00PM Surface Mid-depth Bottom 13,000 16,100 16,000 (a) 6:15PM Surface Mid-depth Bottom 14,600 16,000 16,000 (a) 6:30PM Surface Mid-depth Bottom 13,300 15,900 16,000 (a) 6:45PM Surface Mid-depth Bottom 12,900 15,800 16,000 (a) 7:00PM Surface Mid-depth Bottom 9,500 15,900 15,700 Ill Table 3 (continued) Tide cyclej ono to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 1 (a) Surface 4 800 7:00AM Mid-depth 13 500 Bottom 13 400 (a) Surface 4 900 7:15AM Mid-depth 13 400 Bottom 13 700 Aug. 2 (a) Surface 7 400 7:30AM Mid-depth 13 800 Bottom 14 000 (a) Surface 8 000 7:45AM Mid-depth 14 100 Bottom 14 200 (a) Surface 9 700 8:00AM Mid-depth 13 600 Bottom 14 400 (a) Surface 11 400 8:15AM Mid-depth 13 800 Bottom 13 800 (a) Surface 5 600 8:30AM Mid-depth 13 800 Bottom 14 400 Aug. 3 (a) Surface 4 900 8:45AM Mid-depth 13 400 Bottom 13 600 (a) Surface 5 300 9:00AM Mid-depth 13 600 Bottom 14 700 (a) Surface 8 300 9:15AM Mid-depth 13 000 Bottom 14 000 (a) Surface 5 700 9:3QAM Mid-depth 14 000 Bottom 14 100 112 Table 3 (oontinued) Tide cyole: one to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 3 (a) Surface 15,200 9:15PM Mid-depth 15,700 Bottom 15,650 (a) Surface 13,200 9:30PM Mid-depth 15,600 Bottom 15,650 (a) Surface 14,500 9:45PM Mid-depth 15,000 Bottom 15,500 (a) Surface 9,900 10:00PM Mid-depth 15,300 Bottom 15,300 Aug. 4 (a) Surface 11,700 9:30AM Mid-depth 14,200 Bottom 14,650 (a) Surface 8,900 9:40AM Mid-depth 13,950 Bottom 14,600 (a) Surface 7,000 9:5QAM Mid-depth 14,200 Bottom 14,650 (a) Surface 5,400 10:00AM Mid-depth 14,600 Bottom 14,550 (a) Surface 5,650 10:10AM Mid-depth 13,400 Bottom 14,500 (a) . Surface 10,450 10:20AM Mid-depth 14,000 Bottom 14,500 (a) Surface 5,900 10:30AM Mid-depth 13,700 Bottom 13,850 113 Table 3 (continued) Tide cyoloj ono to two hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 5 (a) Surface 8,400 10:3QAM Mid-depth 13,400 Bottom 13,900 (a) Surface 10,300 10M5AM Mid-depth 13,600 Bottom 14,000 (a) Surface 6,000 11:00AM Mid-depth 14,200 Bottom 14,000 (a) Surface 5,900 11:15AM Mid-depth 13,900 Bottom 13,700 114 Table 4 Tide cyole: two to three hours after high tide. Parts per million Date Position Stations 1934 8 I 9 10 11 12 Oct. 8 12:25PM Surface Mid-depth Bottom 3,270 14,000 14,375 3,400 14,575 14,775 3,575 6,325 14,175 5,775 14,425 14,925 7,000 11,475 14,625 Oct. 10 2:15PM Surface Mid-depth Bottom 2,470 10,235 12,150 2,520 7,325 10,900 3,974 6,590 12,650 3,300 13,680 14,850 5,020 12,300 14,770 Oct. 11 2:45PM Surface Mid-depth Bottom 5,450 14,600 15,150 5,300 15,000 15,250 4,230 13,350 15,500 7,775 14,500 13,775 10,475 12,950 15,950 Oct. 22 12:35PM Surface Mid-depth Bottom 7,800 15,550 16,200 7,750 15,050 15,650 9,650 16,350 16,350 9,000 16,350 16,600 15,050 16,700 16,500 Oct. 24 2:20PM Surface Mid-depth Bottom 6,150 13,400 15,350 3,300 9,050 15,000 4,700 12,200 14,050 4,800 13,500 16,250 6,500 14,850 15,200 Oct. 25 2:25PM Surface Mi d-depth Bottom 5,300 16,100 16,400 14,550 5,750 16,550 7,900 14,050 16,650 10,100 16,750 17,050 12,000 16,800 16,700 Oct. 27 4:40PM Surface Mid-depth Bottom 15,250 1,550 14,700 1,850 14,180 1,800 15,200 2,220 13,050 Oct. 28 5:30PM Surface Mid-depth Bottom 890 2,300 1,930 700 3,910 1,600 1,500 1,700 2,150 1,150 2,250 3,450 1,450 2,650 4,550 Nov. 6 12:15PM Surface Mid-depth Bottom 4,500 7,500 13,850 4,000 7,700 9,850 5,950 8,370 12,150 5,200 11,980 15,300 7,800 12,400 14,650 Nov. 20 12:15PM Surface Mid-depth Bottom 3,000 9,950 13,950 1,850 4,950 14,550 1,550 2,750 13,350 2,100 11,500 14,850 3,500 13,350 14,850 Nov. 23 2:20PM Surface Mid-depth Bottom 450 11,450 13,150 64 2,000 13,850 79 97 5,000 163 13,600 2,000 1,150 2,200 7,650 115 Table 4 (continued) Tide cyole: Date Position 1934 8 Dec. 6 12:20PM Surface Mid-depth Bottom 29 570 12,850 1935 Jan. 4 12:15PM Surface Mid-depth Bottom 860 Jan. 7 2:30PM Surface Mid-depth Bottom 2,750 5,150 14,050 Jan. 18 12:20PM Surface Mid-depth Bottom 51 72 11,950 Jan. 22 2:50PM Surface Mid-depth Bottom 500 7,000 14,000 Feb. 5 2:30PM Surface Mid-depth Bottom Feb. 20 2:10PM Surface Mid-depth Bottom 102 10,600 12,800 Mar. 6 1:50PM Surface Mid-depth Bottom 280 3,450 14,100 Mar. 17 lit 35AM Surface Mid-depth Bottom 22 610 11,700 Mar. 18 12:20PM Surface Mid-depth Bottom 11 109 12,450 Mar. 19 11:55AM Surface Mid-depth Bottom 6 18 10,900 two to three hours after high tide. Parts per million Stations 9 10 11 12 9 7 8 650 8 6 28 480 28 9 10,100 2,580 240 450 820 1,350 1,850 2,850 4,800 2,650 8,400 10,300 9,150 9,900 11,350 14,300 14,550 6 6 13 360 6 5 25 360 33 6 5,000 490 385 540 1,145 950 1,600 1,350 3,100 1,850 1,850 380 12,850 1,150 630 570 490 690 4,200 600 3,450 1,000 5,300 4,950 11,650 10,100 77 f 83 87 650 1,600 150 810 1,650 5,400 10,800 12,750 1,450 260 190 420 1,800 1,200 13,500 6 7 9 322 7 8 62 320 16 8 11,800 680 6 6 7 31 10 9,300 4 6 5 14 7 10,750 116 Table 4 (continued.) Tide oyolet two to three hours after high tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Mar - 22 2;05PM Surface Mid-depth Bottom 5 6 4 7 6 10 5 6 6 Apr. 2 12:10PM Surface Mid-depth Bottom 32 122 11,050 6 8 11 21 5,700 470 390 780 Apr - 17 12:05PM Surface Mid-depth Bottom 4 9 14,100 6 6 7 9 28 8,850 178 165 380 Apr- 19, 20, - Samples from all depths - Maximum 6. Apr. 30 10:55AM Surface Mid-depth Bottom 14 82 12,050 4 4 7 29 36 4,800 400 510 840 May 1, 2, 3, - Samples from all depths - Maximum 6. May 19 12:50PM Surface Mid-depth Bottom 55 12,500 13,000 49 150 12,250 25 10,700 13,500 9 34 50 ,350 May 20 1:15PM Surface Mid-depth Bottom 230 13,300 13,400 225 9,600 12,750 320 11,200 13,500 1 10 870 ,750 ,600 May 26 (a) 7:08AM Surface Mid-depth Bottom 990 13,650 8,150 1,100 13,100 14,150 (a) 8:08AM Surface Mid-depth Bottom 340 330 2,400 1,540 5,750 14,700 (a) 8:08PM Surface Mid-depth Bottom 3,250 7,500 3,600 4,950 14,000 4,150 8,300 15,100 May 27 (a) 8:08AM Surface Mid-depth Bottom 2,060 14,600 15,000 4,800 14,400 15,150 117 Table 4 (continued) Date Position Tide cycle: two to three hours after high tide, Parts per million Stations 12 1935 8 9 10 11 May 27 (a) 9:00AM Surface Mid-depth Bottom 1,600 9,100 14,700 (a) 9:08AM Surface Mid-depth Bottom 3,700 12,750 13,650 4,150 5,050 10,050 5,300 13,050 14,450 May 31 10:58AM Surface Mid-depth Bottom 3,800 15,100 15,250 3,150 14,550 14,950 2,900 15,250 15,250 June 1 1:00PM Surface Mid-depth Bottom 2,600 14,700 14,650 2,100 14,800 15,200 2,150 14,250 15,200 June 2 1:19PM Surface Mid-depth Bottom 1,850 14,900 13,850 1,900 14,500 2,500 13,150 14,750 June 14 10:48AM Surface Mid-depth Bottom 40 13,600 13,850 25 12,500 13,300 40 12,750 13,550 June 16 12:55PM Surface Mid-depth Bottom 160 3,650 13,850 56 620 13,050 2,030 6,550 10,000 June 17 1:08PM Surface Mid-depth Bottom 750 13,800 14,250 850 13,050 13,950 1,350 13,150 14,350 June 26 9:08AM Surface Mid-depth Bottom 20 89 5,850 Juno 28 10:58AM Surface Mid-depth Bottom 21 11,500 13,150 94 109 7,550 85 4,750 8,750 June 30 12:50PM Surface Mid-depth Bottom 91 11,400 12,450 32 61 2,700 87 3,500 9,400 118 Table 4 (continued) Tide cycle I two to three hours after high tide. Parts per million Date Position Stations 8 9 10 11 1935 July 1 Surface 210 100 240 1:13PM Mid-depth 13,550 13,450 13,350 Bottom 13,950 13,650 14,050 July 2 Surface 1,600 1,900 1:03PM Mid-depth 14,300 13,700 14,050 Bottom 14,450 14,050 14,400 July 9 Surface 49 26 39 8:05AM Mid-depth 333 31 74 Bottom 1,275 1,050 12,000 July 10 Surface 10 12 8 8:05AM Mid-depth 10 8 9 Bottom 10 9 12 July 15 Surface 440 880 470 10:55AM Mid-depth 8,600 13,300 11,600 Bottom 13,700 14,200 July 17 Surface 2,950 3,600 3,100 12:53Hli Mid-depth 14,900 15,000 15,150 Bottom 15,400 15,050 15,350 July 18 Surface 3,650 4,200 3,050 1:30PM Mid-depth 15,400 15,200 15,250 Bottom 15,500 15,250 15,500 July 30 Surface 4,250 3,650 3,900 1:08PM Mid-depth 14,700 15,100 15,450 Bottom 14,650 15,050 15,500 July 31 (a) Surface 7,100 5,200 5,950 12:03AM Mid-depth 14,500 14,200 14,550 Bottom 14,350 14,500 13,800 (a) Surface 3,500 5,600 5,900 2:08PM Mid-depth 11,550 11,300 6,900 Bottom 12,500 10,350 12,650 Aug. 12 Surface 4,650 6,250 8,850 10:50AM Mid-depth 15,500 15,600 14,450 Bottom 15,650 14,450 14,700 119 Table 4 (continued) Tide cyoles two to three hours after high tide. Parts per million Date Position Stations 1935 8 9 10 11 Aug. 13 11:23AM Surface Mid-depth Bottom 8,500 14,350 16,000 10,700 14,800 16,800 9,900 16,100 15,150 Aug. 26 11:05AM Surface Mid-depth Bottom 7,900 14,800 15,650 8,700 15,300 15,650 9,400 15,300 15,850 Sept. 8 10:50AM Surface Mid-depth Bottom 2,350 6,550 14,050 1,700 2,350 4,600 6,400 5,550 14,200 Sept.21 10:53AM Surface Mid-depth Bottom 2,850 9,250 15,250 2,400 3,300 5,450 2,950 7,500 14,900 Sept.23 12:48PM Surface Mid-depth Bottom 4,400 9,100 16,000 3,900 5,400 5,600 5,100 9,300 15,700 Sept.30 2:08PM Surface Mid-depth Bottom 7,400 15,800 15,900 11,800 14,800 15,500 11,600 15,800 15,600 Oct. 11 11:38AM Surface Mid-depth Bottom 9,200 15,800 16,200 9,500 13,000 15,900 11,550 16,300 16,600 Oct. 13 1:53PM Surface Mid-depth Bottom 8,900 12,700 16,300 9,700 15,400 15,200 11,300 15,500 16,400 Oct. 14 1:55PM Surface Mid-depth Bottom 13,300 16,800 17,400 Oct. 25 12:00BI Surface Mid-depth Bottom 7,200 15,600 16,250 Oct. 26 11:58AM Surface Mid-depth Bottom 4,850 11,400 11,300 6,100 11,950 11,600 5,850 11,650 10,600 1*0 Table 4 (continued) Tide cyolei two to three hours after high tide. Parts per million Date Position Stations 1935 8 9 10 11 Oct. 27 12:30PM Surface Mid-depth Bottom 12,350 15,100 15,800 13,950 15,800 15,900 15,100 16,050 16,200 Oct. 29 1:35PM Surface Mid-depth Bottom 10,150 14,200 14,400 15,000 16,050 16,050 13,400 16,050 16,000 Nov. 9 11:45AM Surface Mid-depth Bottom 9,000 14,750 16,100 7,950 12,800 14,800 10,550 15,900 15,800 Nov. 10 12:05PM Surface Mid-depth Bottom 15,600 16,500 16,850 16,550 16,850 16,950 16,650 16,900 17,150 Nov. 11 1:40PM Surface Mid-depth Bottom 13,100 15,400 15,150 Nov. 12 1:45PM Surface Mid-depth Bottom 14,600 16,700 16,500 16,600 16,800 17,100 16,800 16,900 16,650 Nov. 24 11:50AM Surface Mid-depth Bottom 7,450 9,100 12,400 7,250 7,500 8,900 7,200 13,150 13,600 Nov. 27 1:50PM Surface Mid-depth Bottom 4,350 11,000 12,000 3,950 6,150 10,100 9,200 13,550 13,400 Dec. 8 11:15AM Surface Mid-depth Bottom 2,200 5,000 9,700 1,250 4,650 5,500 4,150 9,150 9,400 Dec. 11 2:05PM Surface Mid-depth Bottom 5,500 9,900 10,000 5,050 8,350 , 7,150 12,450 12,900 Dec. 12 2:05PM Surface Mid-depth Bottom 7,700 14,400 15,400 6,550 14,200 14,500 7,450 14,150 14,000 Ill Table 4 (oontinued) Tide cyole: two to three hours after high tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Dec. 23 11:15AM Surface Mid-depth Bottom 7,500 11,100 13,900 7,950 8,050 13,700 8,450 14,700 15,250 14,450 12,450 15,300 Dec. 27 2:10PM Surface Mid-depth Bottom 5,350 5,500 7,750 5,150 6,800 11,200 5,750 6,100 9,150 1936 Mar. 9 (a) 1:32PM Surface Mid-depth Bottom 2,050 9,750 11,800 1,250 10,800 11,550 U) 2;27PM Surface Mid-depth Bottom 1,550 6,550 7,500 1,200 6,350 14,300 Mar. 10 (a) 2:11PM Surface Mid-depth Bottom 900 11,050 13,700 650 11,600 13,300 (a) 3.J06PM Surface Mid-depth Bottom 1,350 2,250 1,650 1,550 3,200 13,700 Mar- 11 (a) 2:48PM Surface Mid-depth Bottom 850 10,950 9,500 550 7,350 12,550 (a) 3:48PM Surface Mid-depth Bottom 400 1,000 1,900 390 400 9,550 Mar- 12, 13, Maximum 9. Apr- 2, 3, 4, 9, 18, 19, 20 - Samples from all depths - Apr. 24 3:50PM Surface Mid-depth Bottom 3 3 4 7 26 1,700 128 Table 4 (continued) Tide cycle: two to three hours after high tide. Parts per million Date Position Stations 1936 8 9 10 11 Apr- 25 4:60PM Surface Mid-depth Bottom 3 3 22 4 13 2,350 Apr. 26 5:05AM Surface Mid-depth Bottom 4 5 14 6 18 3,650 Apr. 27 6:05AM Surface Mid-depth Bottom 30 127 18 6,400 Apr. 28 7:20AM Surface Mid-depth Bottom 4 12 25 7 19 5,100 May 10 3:20PM Surface Mid-depth Bottom 6 420 6,600 4 25 6,150 May 21 1:05PM Surface Mid-depth Bottom 13 17 6,400 11 21 6,800 May 22 2:05PM Surface Mid-depth Bottom 19 800 7,150 28 800 800 May 28 (a) 7:05AM Surface Mid-depth Bottom 960 8,900 10,200 140 10,300 10,600 (a) 8:05PM Surface Mid-depth Bottom 1,520 2,500 7,750 1,450 3,100 5,050 June 3 12:05PM Surface Mid-depth Bottom 2,350 10,600 10,200 2,450 10,550 10,950 June 4 (a) 12:05AM Surface Mid-depth Bottom 12,550 13,000 13,400 12,700 12,500 13,550 123 Table 4 (continued) Tide oyolo: two to throe hours aftor high tide. Parte por million Date Position Stations 1936 8 9 10 11 12 Juno 4 (a) 1:05AM Surface Mid-depth Bottom 11,850 12,300 12,800 9,950 12,450 11,850 June 9 4:05PM Surface Mid-depth Bottom 2,650 13,750 13,800 5,100 8,600 13,000 June 10 5:05AM Surface Mid-depth Bottom 9,400 11,400 12,500 9,900 12,800 13,000 July 22 (a) 3:30PM Surface Mid-depth Bottom 8,500 12,300 15,550 (a) 3:40FM Surface Mid-depth Bottom 7,600 13,400 15,650 Dec. 15 2:40PM Surface Mid-depth Bottom 7 7 9 280 750 1,000 620 5,150 1,300 Dec. 26 11:40AM Surface Mid-depth Bottom 750 1,000 580 2,900 500 1,300 840 1,200 1,220 2,000 2,200 1937 Jan. 24 11:20AM Surface Mid-depth Bottom 6 35 153 9 5 35 9 5 9 7 2,060 7,200 310 390 1,100 Mar. 15 3:25FM Surface Mid-depth Bottom 4,100 9,000 11,550 2,700 5,700 9,600 5,000 12,750 12,500 Apr. 8 11:04AM Surface Mid-depth Bottom 9 24 5 27 59 9 4 7 5 Apr. 9, - Samples from all depths - 6 sfcts from sta. 9 - Maximum 7. 124 Table 4 (continued) Tide cycle: two to three hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Apr - 14 Surface 5 3 5 9 300 3:50PM Mid-depth 5 7 3 2,900 320 Bottom 5 7 5 7,500 420 Apr- 21, 22, May 6, 7, - Samples from all depths - Maximum 5. June 4 Surface 600 560 900 8:47AM Mid-depth 740 560 320 Bottom 820 540 1,060 June 5 Surface 200 340 130 9:30AM Mid-depth 250 360 180 Bottom 180 380 260 June 17 Surface 200 17 97 8:33AM Mid-depth 300 200 220 Bottom 2,400 850 4,650 June 18 Surface 240 200 200 8:50AM Mid-depth 2,300 8,400 5,500 Bottom 7,300 7,200 8,400 July 3 .Surface 85 69 39 8:24AM Mid-depth 220 199 59 Bottom 4,200 1,200 5,800 July 10 (a) Surface 4,100 2:20PM Mid-depth 15,400 Bottom 15,000 (a) Surface 3,100 2:30PM Mid-depth 15,000 Bottom 15,000 (a) Surface 2,300 2:40PM Mid-depth 15,000 Bottom 15,000 (a) Surface 2,300 2:50PM Mid-depth 13,400 Bottom 14,800 (a) Surface 2,400 3:00PM Mid-depth 13,200 Bottom 14,500 125 Table 4 (continued) Tide cyole: two to three hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 12 (a) Surface 5 200 4:15PM Mid-depth 14 900 Bottom 14 600 (a) Surface 5 600 4:30PM Mid-depth 15 000 Bottom 15 100 (a) Surface 5 000 4:45PM Mid-depth 13 900 Bottom 12 000 (a) Surface 5 000 5:00PM Mid-depth 13 800 Bottom 14 200 July 13 (a) Surface 3 500 5:00PM Mid-depth 12 300 Bottom 12 900 (a) Surface 4 500 5:10PM Mid-depth 12 800 Bottom 12 500 (a) Surface 4 800 5:20PM Mid-depth 11 900 Bottom 12 100 (a) Surface 2 650 5:30PM Mid-depth 6 300 Bottom 9 400 (a) Surface 2 500 5:40PM Mid-depth 11 800 Bottom 9 700 (a) Surface 2 400 5:50PM Mid-depth 9 500 Bottom 10 600 (a) Surface 2 900 6:00PM Mid-depth 8 800 Bottom 9 800 126 Table 4 (continued) Tide oyole: two to throe hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 14 (a) Surface 1,200 6:00AM Mid-depth 13,900 Bottom 9,000 (a) Surface 850 6:15AM Mid-depth 8,200 Bottom 11,800 (a) Surface 3,100 6:00PM Mid-depth 12,100 Bottom 12,500 July 16 (a) Surface 570 7:10AM Mid-depth 10,000 Bottom 10,200 (a) Surface 700 7:2QAM Mid-depth 13,300 Bottom 13,400 (a) Surface 390 7:30AM Mid-depth 12,400 Bottom 13:, 750 (a) Surface 350 7:40AM Mid-depth 7,900 Bottom 9,700 (a) Surface 340 7:50AM Mid-depth 12,150 Bottom 13,500 (a) Surface 330 8:00AM Mid-depth 11,550 Bottom 13,650 (a) Surface 350 8:10AM Mid-depth 3,000 Bottom 9,900 July 17 (a) Surface 3,040 8:10AM Mid-depth 13,700 Bottom 11,600 127 Table 4 (continued) Tide oyolo: two to three hours aftor high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 17 (a) 8:20AM Surface Mid-depth Bottom 680 11,600 11,400 (a) 8:3QAM Surface Mid-depth Bottom 800 10,200 10,300 (a) 8:40AM Surface Mid-depth Bottom 700 10,900 9,000 (a) 8:50AM Surface Mid-depth Bottom 880 10,200 10,300 (a) 9:00AM Surface Mid-depth Bottom 860 8,100 10,800 July 20 (a) 10:45AM Surface Mid-depth Bottom 4,500 12,550 12,600 (a) 11:00AM Surface Mid-depth Bottom 5,800 11,700 11,400 (a) 11:15AM Surface Mid-depth Bottom 5,900 10,800 11,300 (a) 11:30AM Surface Mid-depth Bottom 3,400 10,200 12,000 July 21 (a) 11:30AM Surface Mid-depth Bottom 3,900 13,400 13,000 (a) 11:40AM Surface Mid-depth Bottom 3,800 12,600 13,100 128 Table 4 (continued) Tide oycle: tiro to three hours after high tide. Parts per million Date Position Stations .8 9 10 11 12 1937 July 21 (a) Surface 3,600 11:50AM Mid-depth 12,200 Bottom 12,500 (a) Surface 2,700 12:00AM Mid-depth 11,900 Bottom 11,400 (a) Surface 2,800 12:10PM Mid-depth 7,500 Bottom 10,800 (a) Surface 2,600 12:20PM Mid-depth 11,300 Bottom 10,900 July 22 (a) Surface 6,500 12:00AM Mid-depth 12,700 Bottom 12,300 (a) Surface 13,200 12:15PM Mid-depth 12,200 Bottom 12,600 (a) Surface 11,900 12:30PM Mid-depth 4,800 Bottom 9,300 (a) Surface 11,900 12:45PM Mid-depth 4,300 Bottom 10,500 (a) Surface 4,800 1:00PM Mid-depth 5,700 Bottom 11,600 July 23 (a) Surface 4,900 12:40PM Mid-depth 11,100 Bottom 13,000 (a) Surface 1,700 12:50PM Mid-depth 13,050 Bottom 12,200 129 Table 4 (continued) Tide oyolos two to three hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 23 (a) 1:00PM Surface Mid-depth Bottom 4,600 11,600 12,500 July 25 (a) 2:00PM Surface Mid-depth Bottom 7,200 14,100 15,000 (a) 2:10PM Surface Mid-depth Bottom 5,300 13,600 14,800 (a) 2:20PM Surface Mid-depth Bottom 5,300 14,100 14,400 (a) 2:30PM Surface Mid-depth Bottom 5,600 12,400 14,300 (a) 2:4QEM Surface Mid-depth Bottom 6,200 13,200 14,400 (a) 2:50FM Surface Mid-depth Bottom 6,000 13,700 12,600 (a) 3:00PM Surface Mid-depth Bottom 5,700 13,500 14,000 July 27 (a) 3:30PM Surface Mid-depth Bottom 9,800 14,300 14,500 (a) 3:45PM Surface Mid-depth Bottom 6,300 12,900 13,100 (a) 4:00PM Surface Mid-depth Bottom 5,300 11,900 12,800 130 Table 4 (continued) Tide oyolo: two to throe hours aftor high tido. Parts per million Date Position Stations 8 9 10 11 12 1937 July 28 (a) Surface 4,900 4:20PM Mid-depth 13,100 Bottom 15,400 (a) Surface 5,200 4:30PM Mid-depth 14,900 Bottom 15,100 (a) Surface 5,400 4:40PM Mid-depth 12,600 Bottom 15,000 (a) Surface 5,200 4:50PM Mid-depth 13,300 Bottom 13,500 (a) Surface 4,700 5:00PM Mid-depth 11,400 Bottom 13,600 July 29 (a) Surface 7,650 5:15PM Mid-depth 15,200 Bottom 15,550 (a) Surface 7,600 5:30PM Mid-depth 15,150 Bottom 15,250 (a) Surface 6,350 5:45PM Mid-depth 13,550 Bottom 13,750 (a) Surface 6,900 6:00PM Mid-depth 11,800 Bottom 11,400 (a) Surface 5,250 6:15PM Mid-depth 8,200 Bottom 12,000 July 30 (a) Surface 2,800 5:30AM Mid-depth 11,800 Bottom 12,500 131 Tablo 4 (continued) Tido cyclat two to throo hours nftor high tido. Parts por million Dato Position Stations 8 9 10 11 12 1937 July 30 (a) Surface 2,600 5:45AM Mid-depth 12,300 Bottom 12,300 (a) Surfaco 2,500 6:00AM Mid-depth 12,100 Bottom 11,900 July 31 (a) Surface 3,000 7:00AM Mid-depth 14,800 Bottom 14,700 (a) Surface 4,000 7:15AM Mid-depth 14,600 Bottom 15,000 Aug. 1 (a) Surface 4,400 7:30AM Mid-depth 13,200 Bottom 12,500 (a) Surface 4,500 7:45AM Mid-depth 12,500 Bottom 13,400 (a) Surface 4,400 8:00AM Mid-depth 13,100 Bottom 12,900 (a) Surfaco 4,700 8:15AM Mid-depth 12,400 Bottom 12,500 (a) Surface 4,800 8:30AM Mid-depth 12,700 Bottom 10,900 Aug. 2 (a) Surface 3,900 8:45AM Mid-depth 12,900 Bottom 14,000 (a) Surfaco 4,200 9:00AM Mid-depth 12,300 Bottom 13,300 132 Table 4 (continuod) Tido oyolos two to throo hours aftor high tido. Parts por million Date Position Stations 8 9 10 11 12 1937 Aug. 2 (a) 9:15AM Surfaco Mid-dopth Bottom 4,200 8,500 12,800 (a) 9:30AM Surface Mid-dopth Bottom 4,900 10,400 12,300 Aug. 3 (a) 9:45AM Surfaco Mid-depth Bottom 4,750 8,200 13,600 (a) 10:00AM Surfaco Mid-dopth Bottom 4,350 12,700 13,900 (a) 10:15AM Surfaco Mid-dopth Bottom 4,200 11,300 13,300 (a) 10:3QAM Surface Mid-dopth Bottom 4,500 10,800 11,100 (a) 10:15PM Surfaco Mid-depth Bottom 12,600 15,000 15,000 (a) 10:30PM Surfaco Mid-dopth Bottom 11,600 14,200 14,100 (a) 10:45FM Surfaco Mid-dopth Bottom 12,100 14,400 14,700 (a) 11:00PM Surfaco Mid-depth Bottom 8,400 12,900 13,900 Aug. 4 (a) 10:40AM Surface Mid-depth Bottom 6,000 13,350 13,850 133 Table 4 (continuod) Tido cyclop two to throo hours after high tide. Parts per million Date Position Stations 8. 9 10 11 12 1937 Aug. 4 (a) Surface 6,600 10:5QAM Mid-depth 13,850 Bottom 14,650 (a) Surface 4,950 11:00AM Mid-depth 13,500 Bottom 14,050 Aug. 5(a) Surface 6,100 11:30AM Mid-depth 13,400 Bottom 14,600 (a) Surface 5,550 11:45AM Mid-depth 13,300 Bottom 14,700 (a) Surface 5,850 12:00AM Mid-depth 13,700 Bottom 13,500 (a) Surface 5,900 12:15PM Mid-depth 13,700 Bottom 13,800 Table 5 f Tide oyola i throo to four hours after high tide Parts per million Date Position .Stations 1934 8 9 10 11 12 Oct. 9 2:40PM Surface Mid-depth Bottom 1,410 4,030 13,700 2,180 2,910 3,150 1,340 3,975 6,000 2,700 6,525 6,500 3,460 4,925 6,250 Oct. 23 2:15PM Surface Mid-depth Bottom • 5,700 10,850 13,300 3,150 5,050 9,500 3,900 11,850 13,500 5,800 13,850 14,550 6,800 11,900 13,100 Oct. 27 5:40PM Surface Mid-depth Bottom 1,600 8,550 15,150 500 1,500 2,500 660 7,600 2,900 7,850 14,700 2,900 7,100 Oct. 29 6:45AM Surface Mid-depth Bottom 100 14,000 2,800 84 135 13,100 70 100 12,100 121 1,800 14,200 590 3,750 4,500 Nov, 8 2:10PM Surfac e Mid-depth Bottom 230 350 13,500 730 777 760 645 694 700 655 1,290 7,450 1,400 1,600 1,400 Nov. 19 12:15PM Surface Mid-depth Bottom 2,790 7,000 13,050 1,980 10,900 12,400 2,920 8,900 12,550 4,550 10,600 13,950 6,600 8,600 12,870 Nov. 21 2:20PM Surface Mid-depth Bottom 3,250 5,550 10,650 1,750 7,000 8,850 1,550 9,150 11,300 2,650 10,850 13,550 4,250 6,200 13,250 Nov. 22 2;20PM Surface Mid-depth Bottom 1,200 14,550 15,400 88 8,200 4,600 339 13,600 5,050 1,650 15,100 14,900 1,300 12,450 6,350 Dec. 4, 5, - Samples from all depths - Maximum 12. Dec. 7 2:30PM Surface Mid-depth Bottom 180 345 2,100 615 670 745 650 630 645 535 770 1,575 815 1,005 1,600 Dec. 18 12:05PM Surface Mid-depth Bottom 3,400 11,950 13,150 1,250 3,300 10,050 1,800 8,200 11,200 3,350 11,500 14,150 5,600 9,100 12;350 Dec. 19 12:40PM Surface Mid-depth Bottom 5,600 12,850 14,250 5,950 13,300 13,650 5,100 11,600 14,050 4,950 13,050 15,650 3,900 12,150 13,450 136 Table 5 (continued.) Tide cyolo j thruo to four hours after high tide Parts por million Date Position Stations 8 9 10 11 12 1934 Dec. 21 Surface 1,140 1,590 1,440 1,270 2,150 2:35PM Mid-dopth 4,750 1,800 1,500 1,550 2,400 Bottom 12,650 1,750 2,150 3,750 3,100 1935 Jan. 3 Surface 2,350 1,300 1,550 3,650 4,900 12;25PM Mid-depth 7,600 5,200 6,900 8,250 6,700 Bottom 9,750 7,250 3,300 10,950 8,950 Jan. 5 Surface 2,900 3,200 2,350 3,000 4,350 2:25PM Mid-depth 5,850 3,850 3,600 5,600 7,100 Bottom 12,250 4,350 7,000 12,100 9,550 Jan. 16 Surface 4 5 4 5 7 11:50AM Mid-depth 7 5 5 5 Bottom 5 5 Jan. 17 Surface 480 43 68 179 360 12:26PM Mid-depth 12,150 470 71 360 450 Bottom 13,950 11,350 11,500 13,200 9,450 Jan. 21 Surface 850 260 1,270 1,280 2:45PM Mid-depth 6,350 750 3,100 1,550 Bottom 13,400 4,400 12,850 2,600 Feb. 1 Surface 740 330 590 700 12:15PM Mid-depth 1,010 1,680 2,2,10 560 Bottom 2,150 2,400 4,900 3,750 Feb. 4 Surface 790 640 760 1,020 2:20PM Mid-depth 2,350 660 4,450 3,400 Bottom 5,950 5,250 8,150 8,500 Feb. 15 Surface 370 470 340 310 310 12:30PM Mid-depth 1,810 720 800 650 560 Bottom 1,200 1,600 1,000 11,400 4,400 Feb. 18 Surface 110 13 11 15 320 2:30PM Mid-dopth 380 11 9 53 350 Bottom 12,100 12 13 11,650 688 Feb. 19 Surface 200 360 180 111 950 2:30PM Mid-dopth 670 1,080 460 1,000 1,480 Bottom 12,400 1,250 2,250 12,400 4.600 136 Table 5 (continued) Tide cyolo j three to four hours after high tido. Parts por million Date Position Stations 1935 8 9 10 11 12 Mar. 4 12:55PM Surface Mid-depth Bottom 420 1,550 14,100 800 1,500 950 730 1,300 1,450 590 2,500 14,650 1,350 1,400 4,200 Mar. 5 2:30PM Surface Mid-depth Bottom 400 500 13,700 690 800 740 670 665 690 800 1,065 5,850 960 1,100 1,600 Mar. 16 12:05PM Surface Mid-depth Bottom 11 84 11,850 6 5 6 7 6 5 7 8 830 277 290 560 Mar, 19, 20, Except; Sta. 21 8, , 31, Apr. B - 9,650 1, 3, - Samples from all depths- Maximum and Sta. 11 - B-9250 Mar. 21. 13 Apr. 4 2:10PM Surface Mid-depth Bottom 22 151 11,100 6 6 18 8 28 5,150 450 370 380 Apr. 11 (a) 9:00AM Surface Mid-depth Bottom 690 1,220 13,700 (a) 9:15AM Surface Mid-depth Bottom 680 1,550 6,400 Apr. 15, 16, Except, Sta, 18 8, , 29 - Samples from all B - 10,400 Apr. 29. depths - Maximum 10 - May 15 6:55AM Surface Mid-depth Bottom 26 7,550 12,250 7 13 5 13 24 12,650 280 310 350 May 17 10:00AM Surface Mid-depth Bottom 29 11,600 12,200 34 6,450 11,950 25 9,000 12,450 34 224 6,950 May 18 12:50PM Surface Mid-depth Bottom 87 5,500 6,450 17 190 9,300 55 3,000 13,300 560 760 5,550 May 26 (a) Surface 8:15AM Mid-depth Bottom 1,150 3,750 14,150 137 Tablo 5 (continued) Tido oyolo » throo to four hours aftor high tido. Parts por million Dato Position Stations 1935 8 9 10 11 May 36 (a) 9:08AM Surface Mid-dopth Bottom 1,180 1,300 14,600 1,450 1,700 1,900 1,960 2,150 7,950 (a) 9:08PM Surface Mid-depth Bottom 2,700 12,250 6,100 5,150 2,200 6,200 4,200 8,150 11,800 (a) 10:00PM Surface Mid-depth Bottom 2,800 1,000 9,700 May 27 (a) 9:08AM Surface Mid-depth Bottom 860 5,000 5,100 1,400 5,100 11,850 (a) 10:08AM Surface Mid-dopth Bottom 1,550 4,400 14,800 720 2,650 3,900 (a) 10:08PM Surface Mid-depth Bottom 2,710 9,850 14,150 1,650 3,300 6,550 4,500 9,450 12,200 May 29 11:30AM Surface Mid-depth Bottom 810 13,800 14,050 800 1,150 2,450 1,110 3,500 3,800 May 30 12:43PM Surface Mid-depth Bottom 940 12,450 14,750 920 2,900 3,450 1,600 3,600 14,700 May 31 1:08PM Surface Mid-dopth Bottom 1,950 12,650 14,800 1,400 3,250 4,900 1,850 9,350 14,250 Juno 2 2:19PM Surface Mid-depth Bottom 950 12,900 15,100 650 650 1,400 2,300 14,650 Juno 12 10:53AM Surface Mid-depth Bottom 78 12,700 13,400 31 550 850 47 130 12,100 June 13 Surface 121 24 96 138 Table 5 (continued) Tido oyolo i thr\ > to four hours after high tido Parte por million Date Position Stations 1935 8 9 10 11 Juno 27 11:00AM Surface Mid-depth Bottom 119 9,109 7,300 26 380 680 34 129 12,650 June 29 12:45PM Surface Mid-depth Bottom 34 12,700 13,250 48 1,400 1,550 243 700 13,239 July 9 8:05AM Surfaco Mid-dopth Bottom 202 230 2,600 16 11 14 11 10 263 July 10 9:05AM Surface Mid-dopth Bottom 12 13 9 8 7 11 8 8 8 July 12 11:15AM Surfaco Mid-dopth Bottom 77 8,400 13,000 15 14 13 16 37 75 July 13 11:28 AM Surface Mid-dopth Bottom 240 10,100 13,200 29 1,200 1,300 191 3,100 13,000 July 16 1:00PM Surfaco Mid-dopth Bottom 1,100 13,350 14,800 450 1,300 5,150 1,950 6,050 July 28 12:55PM Surfaco Mid-dopth Bottom 2,650 11,300 14,350 1,400 5,600 6,750 1,300 10,250 7,893 July 31 (a) 1:08AM Surfaco Mid-depth Bottom 5,390 13,690 14,400 9,100 13,300 13,800 10,300 1 Lx , 2 5 0 14,550 (a) 2:08AM Surface Mid-depth Bottom 4,500 9,200 10,650 3,300 6,950 7,950 6,103 8,950 11,950 (a) . 3:08PM Surfaco Mid-depth Bottom 3,600 5,600 9,400 2,800 3,600 5,300 5,609 7,000 9,900 139 Table 5 (continued) Tide oyolo j three to four hours after high tido Parts por million Dato Position Stations 1935 8 9 10 11 Aug. 13 1:28PM Surface Mid-dopth Bottom 5,900 9,500 10,900 4,800 9,500 9,500 6,630 10,900 12,900 Aug, 14 1:48PM Surface Mid-dopth Bottom 4,600 10,400 12,703 3,500 5,000 10,700 5,700 10,300 12,100 Aug. 24 11:10AM Surface Mid-dopth Bottom 4,900 8,300 15,250 3,050 4,900 4,950 4,450 7,700 15,250 Aug. 25 11:15AM Surface Mid-depth Bottom 5,10^ 14,600 14,750 4,500 7,400 14,650 4,800 8,150 15,100 Aug. 26 12:40PM Surface Mid-depth Bottom 6,800 11,050 15,000 6,300 8,200 11,500 9,00) 11,400 14,600 Aug, 27 1:08PM Surface Mid-dopth Bottom 8,050 13,650 14,830 8,800 10,550 13,150 9,450 13,100 14,950 Aug. 28 1:33PM Surface Mid-dopth Bottom 6,900 12,100 13,700 7,300 7,800 13,10.- 9,033 11,150 14,100 Sept. 9 12:55PM Surface Mid-depth Bottom 4,800 8,300 14,450 4,250 6,250 6,100 5,250 7,600 9,800' Sept.10 1:38PM Surface Mid-depth Bottom 4,750 5,550 6,400 5,200 5,203 5,250 5,500 5,550 8,200 Sept.22 12:43PM Surface Mid-depth Bottom 3,700 5,450 9,100 3,400 5,050 5,050 4,800 6,600 9,200 Oct. 9 11:48AM Surface Mid-depth Bottom 4,50 8,600 14,830 3,40 6,500 9,000 3,600 11,500 9,300 140 Table 5 (continued) Tido cycle t thr^o to four hours after high tido Parts per million Dato Position Stations 8 9 13 11 1935 Oct. 10 Surface 5,603 3,753 5,250 11:48AM Mid-depth 13,33- 7,10 j 10,950 Bottom 14,653 11,453 15,353 Oct. 12 Surfaco 4,830 3,500 6,433 1:53PM Mid-depth 7,33 3 6,933 12,333 Bottom 13,630 12,133 13,33- Oct. 25 Surface 6,950 6,630 12:08PM Mid-depth 15,200 13,153 Bottom 15,450 13,303 Oct. 26 Surface 4,3De 4, 3 - 4,800 1:13PM Mid-depth 4,553 4,053 7, 3C - Bottom 8,033 5,250 9,833 Oct. 27 Surface 6,83- 8,453 13,100 1:33PM Mid-depth 13,553 13,333 14,653 Bottom 13,853 13,353 15,003 Oct. 28 Surface 8,33. 9,4.'- 9,53. 2:10PM Mid-depth 12,633 17,0-3' 12,533 Bottom 13,433 11,630 15,233 Nov. 8 Surface 7,93 • 6,950 13,303 11:55AII Mid-dopth 8,350 9,650 12,530 Bottom 9,930 13,653 13,733 Nov. 10 Surfaco 11,533 13,43. 13,30" 1:35PM Mid-depth 14,633 14,650 14,903 Bottom 15,330 14,853 15,703 Nov. 11 Surface 9,153 13,50. 1:45PM Mid-depth 13,930 16,23 Bottom 14,11. 15,20.1 Nov. 23 Surface 3,533 1,653 3,953 11:45AM Mid-depth 10,353 4,50' 7, 53 Bottom 12,153 5,40 ■ 12,531 Nov. 24 Surface 4,233 6,353 1:15PM Mid-depth 6,91- 9,453 Bottom 9,430 12,30- 141 Tablo 5 (continued) Tido oyolo : throe to four hours after high tide Parts par million Date Position Stations 1935 8 9 10 11 12 Nov. 25 1:50PM Surface Mid-depth Bottom 7,300 8,900 11,050 Nov. 26 2:05PM Surface Mid-depth Bottom 4,050 5,150 9,500 4,000 5,500 6,800 4,000 8,000 10,100 Dec. 6 11:05AM Surface Mid-depth Bottom 1,440 1,750 1,400 1,300 1,500 2,000 Dec. 7 11:05AM Surface Mid-depth Bottom 10,600 11,350 4,700 10,500 9,150 3,750 13,200 13,000 6,200 Dec. 10 2:05PM Surface Mid-depth Bottom 5,150 4,150 5,900 Dec. 21 11:20AM Surface Mid-depth Bottom 5,050 6,200 8,200 7,650 Dec. 22 11:20 AM Surface Mid-depth Bottom 3,500 10,900 12,000 2,550 5,700 5,750 2,650 9,100 10,550 6,200 4,950 9,450 Dec. 25 2:00PM Surface Mid-depth Bottom 4,600 9,450 13,350 6,200 6,250 12,200 5,900 7,800 12,600 6 #500 10,150 13,500 Dec. 26 2:15PM Surface Mid-depth Bottom 7,750 9,750 11,350 8,900 11,300 12,100 9,950 12,000 13,100 9,700 10,950 14,000 10,000 11,700 13,050 1936 Mar. 9 (a) 2:32PM Surface Mid-depth Bottom 1,800 8,500 9,900 900 1,850 4,550 (a) 3:32PM Surface Mid-depth Bottom 2,550 2,750 2,800 2,300 2,750 2,700 2,300 3,000 8,800 142 Table 5 (continued) Tide oyole i three to four hours after high tide. Parts per million Date Position Stations 1936 8 9 10 11 Mar, 10 (a) Surface 3:11PM Mid-depth Bottom 1,150 2,600 8,200 1,050 1,650 1,650 (a) Surface 4:11PM Mid-depth Bottom 1,200 1,200 1,300 1,250 1,300 1,350 1,550 1,450 3,850 Mar, 11 (a) Surface 3:48PM Mid-depth Bottom 900 4,550 8,350 290 1,000 1,600 (a) Surface 4:48PM Mid-depth Bottom 210 240 250 210 200 220 300 220 11,200 Mar, 12, 13, Apr, 1, 2, 3, - Samples from all depths - Maximum ! Apr, 24, 25, 26, 27, - Samples from allc'epths Except: Sta. 11, Apr. 24, B-170, Sta. 11, Apr, Sta. 11, Apr. 27, B-6,600. - Maximum 25; 26, B-820 and Apr. 28 Surface 8:20AM Mid-depth Bottom 5 3 5 12 122 3,800 Apr. 29 Surface 9:20AM Mid-depth Bottom 5 13 8 7 37 5,400 May 6, 7, 8, 10, 11, - Sample Except: Sta. 11, May 10, B-2, s from all depths 750. - Maximum 15, May 21 Surface 2:05PM Mid-depth Bottom 11 23 3,050 17 20 81 May 22 Surface 3:05AM Mid-depth Bottom 420 1,100 550 380 1,450 530 May 28 (a) Surface 8j05AM Mid-depth Bottom 1,020 1,500 3 >000 1,760 3,450 9,850 143 Table 5 (continued) Tide cycle s three to four hours after high tide. Parts por million Date Position Stations 8 9 10 11 1936 May 28 (a) Surface 1,190 2,110 9:05PM Mid-depth 2,800 1,600 Bottom 7,800 4,100 June 3 Surface 2,000 2,100 1:05PM Mid-depth 8,550 10,650 Bottom 10,100 10,650 June 4 Surface 4,000 3,900 2:05AM Mid-depth 9,800 10,000 Bottom 11,500 11,050 June 9 Surface 5,000 5,000 6:05PM Mid-depth 11,150 7,450 Bottom 13,700 12,650 Aug. 13 Surface 6,450 8:51AM Mid-depth 11,750 Bottom 11,750 Oct, 12 Surface 3,500 3,200 4,900 12:00AM Mid-depth 5,900 4,200 9,100 ' Bottom 10,400 4,900 11,800 Oct. 13 Surface 4,650 3,750 5,700 12:25PM Mid-depth 11,500 8,700 11,100 Bottom 13,150 12,150 12,600 Oct. 14 Surface 4,450 4,700 6,200 12:55PM Mid-depth 8,400 7,300 10,250 Bottom 10,050 9,150 12,550 Dec. 15 Surface 79 15 2:50PM Mid-depth 200 33 Bottom 5,200 23 1937 Apr. 9, 19, 20, 22, May 5, 18, 19, - Samples from all depths - Maximum 9, June 16 Surface 77 143 115 8:18AM Mid-depth 300 180 180 Bottom 4,900 660 6,500 144 Table 5 (continued) Date Position Tide oyole t three to four hours after high tide. Parts per million Stations 1937 8 9 July 2 8:08AM Surface Mid-depth Bottom 380 780 5,900 220 500 1,300 July 12 (a) 5:00AM Surface Mid-depth Bottom 2,700 5,700 5,700 (a) 5:15AM Surface Mid-depth Bottom 3,800 4,100 7,100 (a) 5:30AM Surface Mid-depth Bottom 3,300 3,900 4,300 July 14 (a) 6:30AM Surface Mid-depth Bottom 950 3,300 13,300 (a) 6:45AM Surface Mid-depth Bottom 1,100 6,500 10,900 (a) 7:00AM Surface Mid-depth Bottom 1,050 9,250 12,500 (a) 7:15AM Surface Mid-depth Bottom 1,200 7,200 7,300 July 16 (a) 8:20AM Surface Mid-depth Bottom 280 7,650 7,050 (a) 8:30AM Surface Mid-depth Bottom 310 9,850 13,550 (a) 8:40 AM Surface Mi d-depth Bottom 540 750 2,700 10 11 420 540 5,700 12 145 Table 5 (continued) Tide oyole s three to four hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 16 (a) Surface 470 8:50AM Mid-depth 3,900 Bottom 5,250 (a) Surface 370 9:00AM Mid-depth 2,450 Bottom 9,050 July 17 (a) Surface 1,080 9:10AM Mid-depth 9,300 Bottom 7,800 (a) Surface 10,400 9:20AM Mid-depth 1,500 Bottom 4,200 (a) Surface 440 9:30AM Mid-depth 1,100 Bottom 7,400 (a) Surface 640 9:40AM Mid-depth 3,800 Bottom 7,900 (a) Surface 880 9:50AM Mid-depth 1,100 Bottom 4,300 ' (a) Surface 1,100 10:00AM Mid-depth 2,400 Bottom 6,100 July 20 (a) Surface 5,100 11:45AM Mid-depth 11,000 Bottom 12,000 (a) Surface 3,550 12:00AM Mid-depth 9,800 Bottom 11,900 (a) Surface 2,450 12:15PM Mid-depth 8,200 Bottom 8,500 146 Table 5 (continued) Tide oyole t three to four hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 20 (a) Surface 2,200 12:30PM Mid-depth 8,300 Bottom 8,600 July 21 (a) Surfaoe 3,450 12:30PM Mid-depth 10,400 Bottom 11,900 July 22 (a) Surface 2,900 1:15PM Mid-depth 6,000 Bottom 10,600 (a) Surface 2,900 1:30PM Mid-depth 7,400 Bottom 8,200 (a) Surface 2,300 1:45PM Mid-depth 2,500 Bottom 8,000 (a) Surface 2,500 2:00PM Mid-depth 1,300 Bottom 5,100 July 29 (a) Surface 2,040 6:00AM Mid-depth 4,600 Bottom 9,900 (a) Surface 2,180 6:15AM Mid-depth 4,700 Bottom 6,600 (a) Surface 1,940 6:30AM Mid-depth 2,800 Bottom 4,600 (a) Surface 3,900 6:30PM Mid-depth 8,150 Bottom 8,500 (a) Surface 3,850 6:45PM Mid-depth 8,200 Bottom 10,150 147 Table 5 (continued) Tide cycles throe to four hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 29 (a) Surface 3,200 7:00PM Mid-depth 5,350 Bottom 9,650 (a) Surface 3,350 7:15PM Mid-depth 5,550 Bottom 6,350 July 31 (a) Surface 3,100 7:30AM Mid-depth 11,400 Bottom 11,700 (a) Surface 3,000 7:45AM Mid-depth 7,400 Bottom 15,000 (a) Surface 2,600 8:00AM Mid-depth 8,000 Bottom 15,000 (a) Surface 2,800 8:15AM Mid-depth 6,000 Bottom 14,700 (a) Surface 2,700 8:30AM Mid-depth 9,200 Bottom 14,100 Aug. 1 (a) Surface 3,500 8:45AM Mid-depth 10,200 Bottom 10,600 (a) Surface 3,600 9:00AM Mid-depth 10,600 Bottom 10,000 (a) Surface 3,800 9;15AM Mid-depth 8,700 Bottom 11,800 (a) Surface 3,600 9:30AM Mid-depth 4,800 Bottom 9,900 148 Table 5 (continued) Tide oyolo j throo to four hours after high tide. Parts por million Date Position Stations 8 9 10 11 12 1937 Aug. 2 (a) Surface 4,100 9:45AM Mid-depth 10,700 Bottom 11,600 (a) Surface 3,000 10:00AM Mid-depth 8,800 Bottom 10,200 (a) Surface 4,400 10:15AM Mid-depth 8,100 Bottom 10,000 (a) Surface 3,300 10:30AM Mid-depth 4,400 Bottom 9,350 Aug. 3 (a) Surface 4,050 10:45AM Mid-depth 11,600 Bottom 12,500 (a) Surface 3,900 11:00AM Mid-depth 9,500 Bottom 7,900 (a) Surface 3,250 11:15AM Mid-depth 8,100 Bottom 9,800 (a) Surface 3,250 11:30AM Mid-depth 8,700 Bottom 9,800 Aug. 5 (a) Surface 4,200 12:30PM Mid-depth 13,200 Bottom 13,500 (a) Surface 4,000 12:45PM Mid-depth 12,000 Bottom 12,600 (a) Surface 3,000 1:00PM Mid-depth 7,900 Bottom 9,900 149 Table 5 (continued) Tide oyole J throo to four hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 5 (a) Surface 2,200 1:15PM Mid-depth 3,900 Bottom 7,100 (a) Surface 2,800 1:30PM Mid-depth 3,300 Bottom 5,900 150 Table 6 Tide oyclo : four to five hours after high tide Parts per million Date Position Stations 8 9 10 11 12 1934 Oct. 5 Surface 1,660 1,784 2,740 2:10PM Mid-depth 2,600 3,260 Bottom 3,025 6,650 4,970 Oct. 8 Surface 2,150 2,075 2,900 3,525 6,275 3:05PM Mid-depth 3,150 2,225 3,360 5,875 6,920 Bottom 13,800 2,650 5,025 10,375 8,200 Oct. 19 Surface 2,900 2,790 1,580 3,010 1,570 12:00AM Mid-depth 3,200 4,475 2,225 7,600 8,375 Bottom 15,600 4,550 7,550 11,000 7,700 Oct. 22 Surface 5,600 6,950 8,900 8,900 9,600 2:35PM Mid-depth 8,450 9,200 9,400 12,050 11,750 Bottom 9,700 "9,300 10,000 13,600 14,300 Oct. 28 (a) Surface 2,400 2,600 2,850 2,550 4,000 6:45AM Mid-depth 1,760 2,420 3,250 4,500 4,400 Bottom 14,600 2,550 3,600 13,500 5,900 (a) Surface 1,500 1,800 1,900 2,200 2,900 7:50AM Mid-depth 2,090 1,800 2,100 2,500 2,950 Bottom 14,700 1,800 2,450 7,600 3,250 Oct. 29 (a) Surface 125 66 79 128 660 7:45AM Mid-depth 11,700 85 160 1,350 850 Bottom 14,500 2,500 1,400 13,950 2,250 (a) Surface 240 52 31 48 470 8:45AM Mid-depth 13,250 85 85 145 550 Bottom 14,500 900 590 10,800 660 Nov. 5 Surface 780 1,400 1,400 1,450 1,800 2:OOPM Mid-depth 2,000 1,700 1,600 1,850 2,500 Bottom 14,550 1,050 2,350 6,450 2,800 Nov. 6 Surface 2,300 2,250 2,800 2,900 3,900 2:15PM Mid-depth 4,050 2,500 2,950 3,500 5,150 Bottom 4,600 2,700 4,550 8,550 5,200 Nov. 20 Surface 1,500 2,100 2,350 2,100 2,900 2:25PM Mid-depth 3,350 2,350 2,350 3,150 3,750 Bottom 11,500 2,450 2,500 7,850 4,150 151 Table 6 (continued) Tide cycle t four to five hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1934 Dec. 3, 5, 6,- Samples from all depths - Maximum 14. Doc. 17 Surface 3,350 2,350 2,450 3,650 5,050 11:55AM Mid-depth 10,500 6,600 5,200 9,650 7,850 Bottom 14,000 7,750 10,450 13,300 10,250 Dec. 19 Surface 2,950 • 2,100 2,300 2,700 2,900 2:40PM Mid-depth 5,350 5,800 4,500 5,500 5,600 Bottom 10,000 6,300 4,850 9,700 6,900 Dec. 20 Surface 75 25 25 55 165 2:30PM Mid-depth 45 30 50 Bottom 275 35 20 60 170 1935 Jan. 2 Surface 70 82 100 98 160 12:20PM Mid-depth 40 79 98 99 167 Bottom 9,250 89 101 119 177 Jan. 3 Surface 1,700 1,950 2,100 2,450 2,900 2:25PM Mid-depth 2,100 2,050 2,100 2,500 2,850 Bottom 10,350 2,150 7,4-00 5,450 2,950 Jan. 4 Surface 300 250 180 200 360 2:25PM Mid-depth Bottom Jan. 15 Surface 5 5 4 6 6 12:35PM Mid-depth 4 4 5 7 Bottom 7 6 Jan. 17 Surface 200 200 230 250 360 2:10PM Mid-depth 230 200 430 Bottom 13,000 240 6,850 370 Jan. 18 Surface 22 5 5 6 10 2:30 PM Mid-depth 70 4 6 6 8 Bottom 640 6 5 8 10 Jan. 30 Surface 166 12:00AM Mid-depth 210 Bottom 590 152 Table 6 (continued) Tide oycle : four to five hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1935 Jan. 31 Surface 350 12:00AM Mid-depth 380 Bottom 670 Feb. 13 Surface 400 520 380 470 360 12:00AM Mid-depth 2,060 1,720 940 1,380 700 Bottom 13,650 1,950 1,410 6,450 2,900 Feb. 14 Surface 760 1,020 650 880 870 12:35PM Mid-depth 3,850 1,150 3,600 1,700 Bottom 13,100 3,750 1,500 6,300 3,950 Mar. 1 Surface 155 11 9 14 193 12:20PM Mid-depth 750 11 10 28 180 Bottom 950 10 13 1,670 240 Mar. 4 Surface 310 400 520 620 820 2:40PM Mid-depth 340 420 535 915 1,000 Bottom 12,900 460 540 1,100 950 Mar. 14, 15, - Samples from all depths - Maximum 15. Mar. 17 Surface 9 6 6 6 160 1:35PM Mid-depth 9 6 3 8 159 Bottom 9 8 8 3,060 200 Mar. 18 Surface 8 8 5 2:00PM Mid-depth 8 6 8 Bottom 350 7 11 Mar. 21 Surface 10 6 4 2:00PM Mid-depth 10 5 4 Bottom 9,850 13 6 Mar. 30, Apr. 2, - Samples from all depths - Maximum 7. Apr. 11 (a) Surface 620 9:30AM Mid-depth 1,250 Bottom 13,250 (a) Surface 680 9:45AM Mid-depth 1,550 Bottom 13,550 153 Table 6 (continued) Tide oyole i four to five hours after high tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Apr. 11 (a) 10:00AM Surface Mid-depth Bottom 720 1,350 7,250 (a) 10:15AM Surface Mid-depth Bottom 660 1,250 14,200 (a) 10:30AM Surface Mid-depth Bottom 740 1,350 13,950 Apr. 13 11:50AM Surface Mid-depth Bottom 24 16 50 6 7 5 7 11 8 8 8 Apr. 14, 16, Maximum 21. 17, 28, 30, May 1, 2, - Samples from all depths - May 14 11:05AM Surface Mid-depth Bottom 19 115 11,450 6 6 59 13 33 '3,750 430 190 550 May 16 1:10PM Surface Mid-depth Bottom 20 79 12,050 5 5 49 7 15 1,780 192 200 1,300 May 17 12:55PM Surface Mid-depth Bottom 214 4,850 11,800 6 290 340 41 91 12,300 640 710 2,500 May 26 (a) 10:08AM Surface Mid-depth Bottom 700 1,210 7,950 1,180 1,250 1,200 1,140 1,350 4,200 (a) 10:08PM Surface Mid-depth Bottom 2,380 3,900 14,200 2,570 3,150 7,950 Surface 11:00PM Mid-depth Bottom 2,290 2,200 5,500 154 Table 6 (continued) Tide oyole i four to five hours after high tide. Parts per million Date Position Stations m 1935 8 9 10 11 May 27 (a) 10:15AM Surface Mid-depth Bottom 2,430 4,700 10,950 (a) 11:08AM Surface Mid-depth Bottom 1,400 2,100 14,200 1,680 1,850 1,800 1,320 2,200 7,000 (a) 11:08PM Surface Mid-depth Bottom 2,320 2,800 13,550 3,050 3,000 2,950 2,970 4,800 8,000 May 28 12:00AM Surface Mid-depth Bottom 2,360 2,900 4,900 June 2 3:19PM Surface Mid-depth Bottom 1,100 2,150 15,150 1,250 1,800 1,450 2,200 12,900 June 14 1:28PM Surface Mid-depth Bottom 197 2,600 13,600 293 340 750 170 330 3,200 June 15 1:20PM Surface Mid-depth Bottom 93 190 13,200 184 210 220 111 270 June 25 10:35AM Surface Mid-depth Bottom 30 34 6,300 8 7 8 13 9 11 June 26 11:13AM Surface Mid-depth Bottom 78 357 8,000 9 11 11 17 21 1,400 June 28 1:08PM Surface Mid-depth Bottom 79 22 7,600 12 12 25 11 13 20 July 5 7:35AM Surface Mid-depth Bottom 1,700 1,850 4,550 1,650 2,750 1,750 155 Table 6 (continued) Tide oyolo i Date Position 8 1935 July 9 (a) Surface 89 9:05PM Mid-depth 180 Bottom 170 (a) Surface 118 10:05PM Mid-depth 150 Bottom 130 July 11 Surface 28 10:53AM Mid-depth 14 Bottom 2,250 July 13 Surface 163 1:08PM Mid-depth 1,000 Bottom 12,650 July 15 Surface 630 1:05PM Mid-depth 11,950 Bottom 13,950 July 26 Surface 1,240 11t10AM Mid-depth 2,350 Bottom 14,700 July 29 Surface 4,950 1:05PM Mid-depth 15,300 Bottom 15,300 July 31 (a) Surface 4,600 3:08AM Mid-depth 5,400 Bottom 9,000 (a) Surface 3,400 4:08AM Mid-depth 3,600 Bottom 11,900 (a) Surface 3,200 4:08PM Mid-depth 5,500 Bottom 11,500 Aug, 11 Surface 3,800 10:50AM Mid-dopth 8,800 Bottom 12,000 four to five hours after high tide. Parts per million Stations 9 10 11 12 9 7 10 9 10 9 10 10 8 9 11 11 5 6 7 6 41 17 219 159 290 240 1,200 1,100 710 1,040 1,050 2,400 1,100 9,300 360 1,220 1,900 12,250 2,700 14,450 7,100 4,500 15,100 13,600 15,150 14,950 3,950 4,800 6,200 9,050 7,800 10,600 3,600 5,100 3,600 4,500 3,700 7,600 2,400 5,000 4,600 7,300 6,650 9,500 3,600 3,800 8,800 8,800 4,700 11,900 156 Table 6 (continued) Tide cyole ; four to five hours after high tide. Parts per million Date Position Stations 1935 8 9 10 11 Aug. 12 12:50PM Surface Mid-depth Bottom 4,400 9,400 15,100 3,550 4,700 9,500 4,250 5,700 12,550 Aug. 23 10:50AM Surface Mid-depth Bottom 3,200 8,350 15,400 2,050 3,400 6,400 2,500 7,900 14,700 Aug. 25 12:50PM Surface Mid-depth Bottom 4,600 14,550 14,950 3,600 5,700 6,250 5,150 8,850 15,050 Sept, 6 10:50AM Surface Mid-depth Bottom 1,460 2,600 8,500 1,500 2,100 9,800 1,500 2,100 6,400 Sept, 7 11:18AM Surface Mid-depth Bottom 1,550 11,850 14,200 1,600 2,250 2,200 1,800 2,700 7,500 Sept. 8 12:40PM Surface Mid-depth Bottom 1,700 2,700 9,150 1,800 2,150 2,200 2,100 3,200 10,600 Sept. 20 10:53AM Surface Mid-depth Bottom 1,300 2,000 13,700 1,400 1,400 1,450 1,400 1,700 8,750 Oct. 8 11:48AM Surface Mid-depth Bottom 6,300 7,000 11,600 6,600 8,200 8,300 7,100 7,500 10,900 Oct. 10 1:48PM Surface Mid-depth Bottom 4,050 4,100 4,050 4,600 5,200 9,700 Oct. 11 1:48PM Surface Mid-depth Bottom 4,000 4,300 6,500 5,500 5,500 5,900 6,300 7,900 11,000 Oct. 22 11:48AM Surface Mid-depth Bottom 6,300 9,950 14,800 6,550 7,200 8,900 7,350 11,000 11,850 157 Table 6 (oontinued) Tide oyolo i Date Position 1935 8 Oct. 23 12:05PM Surface Mid-depth Bottom 4,800 9,500 14,400 Oct. 25 2:08PM Surface Mid-depth Bottom 5,150 8,450 15,100 Nov, 6 11:35AM Surface Mid-depth Bottom 2,900 3,300 13,000 Nov. 7 12;30PM Surface Mid-depth Bottom 4,300 6,450 11,200 Nov. 8 1:35PM Surface Mid-depth Bottom Nov. 9 1:45PM Surface Mid-depth Bottom 4,750 7,300 8,300 Nov. 20 11:40AM Surface Mid-depth Bottom 1,600 2,100 10,400 Nov. 21 11:50AM Surface Mid-depth Bottom 1,550 1,750 8,550 Nov. 22 12:51PM Surface Mid-depth Bottom 2,450 4,300 9,500 Nov. 23 1:50PM Surface Mid-depth Bottom 1,900 2,950 5,100 Nov. 24 1:20PM Surface Mid-depth Bottom 7,500 8,750 12,500 four to five hours after high tide. Parts per million Stations 9 10 11 12 4,000 6,500 6,600 10,600 7,800 12,800 5,600 6,650 7,150 8,750 7,000 8,450 3,200 3,500 3,300 3,600 3,400 5,900 4,500 5,400 5,950 6,500 6,100 9,000 7,150 6,750 7,350 7,400 7,450 9,150 6,600 7,550 7,500 7,950 8,150 11,900 2,000 1,900 2,050 2,900 2,100 7,150 1,920 2,430 1,970 4,630 1,850 6,470 1,900 3,350 4,700 5,800 4,500 8,750 1,950 2,050 2,450 2,700 2,300 8,400 158 Table 6 (continued) Tide cycle i four to five hours after high tide. Parts per million A Date Position Stations 1935 8 9 10 11 12 Nov. 25 1:55PM Surface Mid-depth Bottom 6,400 7,650 9,900 6,350 8,350 9,450 Dec. 5 11:05AM Surface Mid-depth Bottom 700 1,050 1,550 1,120 1,150 1,200 960 1,450 2,650 Dec. 6 11:10AM Surface Mid-depth Bottom 900 1,250 1,800 Dec. 8 1:55PM Surface Mid-depth Bottom 1,700 1,900 2,200 2,300 2,400 2,400 2,300 2,700 4,400 Dec, 9 2:05PM Surface Mid-depth Bottom 5,850 8,350 9,900 9,250 11,050 11,600 11,200 12,400 13,500 Dec. 20 11:15AM Surface Mid-depth Bottom 2,800 3,400 9,450 2,200 3,200 4,100 2,600 3,800 4,550 3,250 4,500 8,050 4,450 5,850 6,600 Dec. 21 11:35AM Surface Mid-depth Bottom 1,000 7,750 5,000 5,850 6,750 Dec. 24 2:15 PM Surface Mid-depth Bottom 6,850 7,450 8,400 7,050 6,700 7,200 7,500 7,650 8,400 7,700 8,300 9,600 8,350 8,450 8,850 Dec. 25 2:15PM Surface Mid-depth Bottom 5,250 7,400 12,400 1936 Jan. 3 11:05AM Surface Mid-depth Bottom 7,050 8,100 10,500 7,300 7,550 8,300 Jan. 4 12:00AM Surface Mid-depth Bottom 950 1,050 1,300 1,000 1,100 1,100 750 800 800 900 1,000 2,250 1,350 1,300 1,550 159 Table 6 (continued) Dato 1936 Jan. 5 12:15PM Jan. 30 8:40AM Feb. 3 12:45PM Feb. 17 11:34AM Feb. 28 8:20AM Mar. 1 10:22AM Mar. 2 11:31AM Mar. 3 12:27PM Position Tido cyolo i four to fivo hours after high tide, Parts por million Stations 9 10 Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom 8 2,150 2,900 3,150 5 700, 900 1,850 1,850 1,800 1,600 1,700 1,700 3,000 4,100 5,450 1,350 1,350 2,350 11 2,000 3,250 3,900 1,000 1,100 900 Mar. 9 (a) Surface 1,700 3:37PM Mid-depth 6,800 Bottom 14,300 (a) Surface 1,250 1,550 1,450 1,500 4:32PM Mid-depth 1,550 1,550 1,750 1,600 Bottom 9,350 1,650 1,850 9,400 Mar. 10 (a) Surface 1,050 4:16PM Mid-depth 1,650 Bottom 12,350 12 2,550 2,600 2,800 900 1,050 1,100 1,300 1,600 2,200 2,900 4,600 5,850 100 Tabic 6 (continued) Tide oyolo r four to fivo hours aftor high tido. Parts per million Dato Position Stations 1936 8 9 10 11 Mar. 10 (a) 5:11PM Surface Mid-depth Bottom 850 900 5,300 900 900 950 900 950 1,100 1,500 1,600 2,100 Mar. 11 (a) 4:53PM Surface Mid-depth Bottom 750 1,560 12,600 (a) 5:48PM Surface Mid-depth Bottom 320 390 7,500 105 115 120 59 71 95 69 145 1,770 Mar. 31, Apr. Samples from Sta. 11, Apr. 1. 3, 4, 7, all depths - 28 B-600 .3, 16, 17, Maximum 14 24, 25, - Except: 26, 27, 28 Sta. 11, , May 9 Apr. 27 May 21 3:05PM Surface Mid-depth Bottom 4 5 6 9 12 1,650 May 22 4:05AM Surface Mid-depth Bottom 790 2,150 550 450 1,350 550 May 28 (a) 9:05AM Surface Mid-depth Bottom 1,530 1,560 1,350 1,270 1,400 2,650 (a) 10:05AM Surface Mid-depth Bottom 1,290 2,700 4,600 1,340 1,300 1,300 Juno 3 2:05PM Surface Mid-depth Bottom 1,750 1,950 2,200 2,250 5,700 6,950 Juno 4 3:05AM Surface Mid-depth Bottom 2,200 7,150 9,200 5,750 8,950 10,700 June 9 (a) 6:05 AM Surface Mid-depth Bottom 4,550 4,300 4,300 4,900 5,200 7,500 161 Tablo 6 (continued) Tide oyclo t four to five hours aftor high tide. Parts per million Date Position Stations 1936 8 9 10 11 12 June 9 (a) 6:05PM Surface Mid-depth Bottom 4,800 4,850 4,650 5,250 5,450 Nov. 24 10:55AM Surface Mid-depth Bottom 4,500 5,200 7,850 4,700 5,600 6,000 5,100 5,300 5,400 6,100 6,000 6,300 6,600 6,800 6,800 Dec. 1 10:50AM Surface Mid-depth Bottom 9,800 11,600 11,400 5,350 6,500 9,900 5,200 10,050 10,200 4,500 4,300 9,300 9,100 9,000 9,000 1937 Jan. 3, 4, Apr, 7 sets from Sta 9, 19, 22, . 9, Apr. 9 May 4, 17, June 1, ; 6 sets from Sta. 9 - Samples , Apr. 22 from all depths - Maximum 9. June 2 9:47AM Surface Mid-depth Bottom 17 83 87 5 7 5 7 9 13 June 3 9:28AM Surface Mid-depth Bottom 180 220 180 280 260 240 200 300 300 June 15 8:27AM Surface Mid-depth Bottom 65 200 390 119 210 200 15 27 450 July 12 (a) 5:45AM Surface Mid-depth Bottom 5,000 5,500 5,600 (a) 6:00AM Surface Mid-depth Bottom 3,000 3,400 4,100 (a) 6:15AM Surface Mid-depth Bottom 3,600 3,900 4,000 (a) 6:30AM Surface Mid-depth Bottom 3,400 3,700 3,700 162 Table 6 (continued) Tide oyolo : four to five hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 12 (a) Surface 3,500 6:45AM Mid-depth 3,600 Bottom 4,000 July 14 (a) Surface 1,450 7:30AM Mid-depth 8,800 Bottom 10,000 (a) Surface 1,300 7:45AM Mid-depth 1,950 Bottom 2,100 (a) Surface 1,200 8:00AM Mid-depth 1,300 Bottom 1,850 (a) Surface 1,100 8:15AM Mid-depth 1,000 Bottom 1,300 July 20 (a) Surface 2,350 12:45PM Mid-depth 8,200 Bottom 8,500 (a) Surface 2,300 1:00PM Mid-depth 7,100 Bottom 6,500 (a) Surface 2,250 1:15PM Mid-depth 6,000 Bottom 5,000 (a) Surface 2,100 1:30PM Mid-depth 5,800 Bottom 7,500 (a) Surface 2,100 1:45PM Mid-depth 5,400 Bottom 7,600 July 22 (a) Surface 1,900 2:15PM Mid-depth 2,500 Bottom 5,000 163 Table 6 (continued) Tide cycle : four to five hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 22 (a) Surface 2,000 2:30PM Mid-depth 3,800 Bottom 5,300 (a) Surface 2,300 2:45PM Mid-depth 3,200 Bottom 6,900 (a) Surface 2,000 3:00PM Mid-depth 2,200 Bottom 4,900 July 27 (a) Surface 4,900 6:00AM Mid-depth 4,800 Bottom 5,000 (a) Surface 4,800 6:15AM Mid-depth 4,800 Bottom 4,800 July 29 (a) Surface 2,020 6:45AM Mid-depth 3,100 Bottom 3,100 (a) Surface 2,460 7:00AM Mid-depth 2,600 Bottom 3,100 (a) Surface 3,060 7:15AM Mid-depth 3,100 Bottom 3,300 (a) Surface 2,800 7:30AM Mid-depth 2,900 Bottom 2,800 (a) Surface 3,550 7:30PM Mid-depth 4,050 Bottom 6,150 (a) Surface 3,050 7:45PM Mid-depth 4,000 Bottom 4,500 164 Table 6 (continued) Tide cyolo : four to fivo hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 29 (a) Surface 3,250 8:00PM Mid-depth 3,500 Bottom 4,250 (a) Surface 4,050 8:15PM Mid-depth 4,100 Bottom 4,150 (a) Surface 4,050 8:30PM Mid-depth 4,400 Bottom 4,150 July 31 (a) Surface 3,100 8:45AM Mid-depth 9,600 Bottom 13,400 (a) Surface 2,900 9:00AM Mid-depth 3,200 Bottom 12,000 (a) Surface 2,700 9:15AM Mid-depth 4,500 Bottom 11,500 (a) Surface 2,900 9:30AM Mid-depth 3,900 Bottom 7,600 Aug. 1 (a) Surface 3,800 9:45AM Mid-depth 8,700 Bottom 8,400 (a) Surface 3,300 10t00AM Mid-depth 3,600 Bottom 6,800 (a) Surface 3,400 10:15AM Mid-depth 4,400 Bottom 5,300 (a) Surface 3,300 10:30AM Mid-depth 4,800 c r\r\r\ 165 Table 6 (continued) Tide cycle : four to five hours after high tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 2 (a) Surface 3,700 10:45AM Mid-depth 9,500 Bottom 9,600 (a) Surface 3,200 11:00AM Mid-depth 4,000 Bottom 5,500 (a) Surface 3,300 11:15AM Mid-depth 3,750 Bottom 4,400 (a) Sur f ac e 3,700 11:30AM * Mid-depth 3,700 Bottom 4,600 Aug. 3 (a) Sur f ac e 3,200 11:45AM Mid-depth 9,800 Bottom 10,500 (a) Surface 3,400 12:00AM Mid-depth 3,800 Bottom 8,300 (a) Surface 3,200 12:15 PM Mid-depth 4,100 Bottom 5,800 (a) Surface 3,450 12:30PM Mid-depth 3,600 Bottom 3,800 Aug. 5 (a) Surface 2,500 1:45PM Mi d-depth 3,500 Bottom 4,000 (a) Surface 2,900 2:00PM Mid-depth 2,800 Bottom 4,000 (a) Surface 2,500 2:15PM Mid-depth 3,900 Bottom 3,500 166 Table 6 (continued) Date 1937 Position Tide cycle : four to five hours after high tide, Parts per million Stations 8 9 10 11 12 Aug. 5 (a) 2:30PM Surface Mid-depth Bottom 2,550 3,300 3,200 MIMEOGRAPHED BULLETINS OF THE CONNECTICUT GROUND WATER SURVEY S-l Tho Salinity of the Connecticut River, October 1, 1934 to September 30, 1937. Part I - Text, 6 maps, 2 illustrations, 74 pages, 1938. Parts II and III - Tabulations of chlorides of samples collected from the Connecticut river at Saybrook Highway bridge, 323 pages, 1938. GW-1 Record of wells, springs and ground-water levels in the towns of Bridgeport, Easton, Fairfield, Stratford and Trumbull, Connecticut. (242 pages, 5 maps, 1938.) GW-2 Record of wells, springs and ground-water levels in the towns of Branford, Chester, Clinton, Essex, Guilford, Haddam, Killingworth, Madison, North Branford, Old Saybrook, Saybrook and VJestbrook, Connecticut. (340 pages, 12 maps, 1938.) GW-3 Record of wells, springs and ground-water levels in tho towns of Bethany, East Haven, Hamden, Milford, North Haven, Orange, West Haven and Vfoodbridge, Connecticut. (247 pages, 8 maps, 1938.) GW-4 Record of wells, springs and ground-water levels in the towns of Berlin, Cromwell, Durham, Mcridon, Middlefield, Middletown, Port¬ land and Yfallingford, Connecticut. (170 pages, 8 maps, 1938.) GW-5 Record of wells, springs and ground-water levels in the tovms of Colchester, East Haddam, East Hampton, East Lyme, Lyme, New London, Old Lyme and Yfaterford, Connecticut. (314 pages, 8 maps, 1938.) GW-6 Ground-water levels in north-central Connecticut, October 1, 1934 to December 31, 1937. (212 pages, 1938.) CONNECTICUT GROUND WATER SURVEY A PROJECT OF THE WORKS PROGRESS ADMINISTRATION THE SALINITY OF THE CONNECTICUT RIVER OCTOBER 1, 1934 TO SEPTEMBER 30, 1937 Bulletin S-l Part III ISSUED BY THE WORKS PROGRESS ADMINISTRATION FOR CONNECTICUT OFFICIAL. PROJECT 665-15-3-116 IN COOPERATION WITH THE CONNECTICUT STATE WATER COMMISSION, SPONSOR PREPARED UNDER DIRECTION OF THE GEOLOGICAL SURVEY UNITED STATES DEPARTMENT OF THE INTERIOR HARTFORD. CONNECTICUT OCTOBER 1938 Connecticut Ground Wator Survey A Project of the Works Progress Administration The Salinity of the Connecticut River October 1, 1934 to September 30, 1937 Bulletin S-l Part III Issued by the Works Progress Administration for Connecticut Official Project 665-15-3-116 In cooperation with the Connecticut State Water Commission, Sponsor Prepared under direction of the Geological Survey United States Department of the Interior Hartford, Connecticut October, 1938 167 Part III Table of Contents Introduction Tide Cycle 7, One hour before to low tide Tide Cycle 8, Low tide to one hour after Tide Cycle 9, One to two hours after low tide Tide Cycle 10, Two to three hours after low tide Tide Cycle 11, Three to four hours after low tide Tide Cycle 12, Four to five hours after low tide Bottom Samples, taken one hour before high tide to one to two hours after high tide Simultaneous samples taken on all tide cycles, April 21 to September 30, 1937 168 Tho Salinity of tho Connootlout Rivor Octobor 1, 1934- to Soptorobor 30, 1937 Part III 'INTRODUCTION Sampling has boon oarriod on almost continuously by tho Connecticut Ground Yfator Survey since the start of work Octobor 1, 1934 up to tho presont time at Saybrook Highway bridge, Tho tabulations of the results of chlorido tests aro prosontod in Parts II and III of the report of the tidal salinity study. The results are presented in full for the period October 1, 1934 to September 30, 1937 and are referred to in the discussion in Part I from time to time. The Connecticut Ground Water Survey, operated as Works Progress Administration Official Project 6Q5*-15-3?116, -ife- sponsored by the Connecticut State Water Commission, which has directed its activities since the inception of the project.. Under a cooperative agreement, technical direction of the work was furnished by the Geological Survey, U, S. Department of the Interior. The Ground Water Survey, started by the Connecticut State Emergency Relief Commission on October 1, 1934 as a Federal Emergency Relief Administration project, has been operated since November 22, 1935 by the Division of Women's and Professional Projects of the Works Progress Admin¬ istration for Connecticut, as Official Projects 65-15-861, 465-15-3-26 and 665-15-3-116. The Connecticut State Planning Board in cooperation with the State Water Commission, sponsored the project until July 1, 1937, when sponsorship was assumed by the State Water Com¬ mission. William H. Brothwell, Project Supervisor for the Works Progress Administration, also supervised the earlier work performed under the State Emergency Relief Commission; and has been in charge of the Sponsor's program throughout. The salinity studies wore planned and carried out under the technical direction of Mr. C. S. Howard of the Geological Survey, United States Department of tho Interior. Mr. YTilliam Ho Brothwell was in chargo of personnel and facilities, and coordinated the various parts of the work. Tho enginooring staff of the State Water Commission assisted in transporting the samples and in other phases of the work. The field work of collecting samples vrets successively under the direct supervi¬ sion of Mr.. Robert M. Robertson, Mr. Edwin J. Greene BJld Mr. Fred W. Carter. The chloride determinations were made at the Hall Chemistry Laboratory of Wesleyan University under the direct supervision of Mr. Arthur McDonald, with Dr. Co R. Hoovor of the University acting in an advisory capacity. The tabulations presented in Parts II and III were drawn up under the direct supervision of Mr. Frank B. Rau. The preparation of this report has been under the supervision of Mr. Russell M. Logic, who has also assisted the Federal Geological Survey in supervising the technical details of the field work. Stencilling, reproduction and assembly of the report wore in chargo of Mr. Winthrop E. Danielson. 169 Table 7 Tide cyoloi one hour b(-foro to low tide. Parts per million Date Position Stations 8 9 10 11 12 1934 Oct. 5 Surface 1,720 1,814 2:05PM Mid-depth 2,630 2,130 Bottom 13,900 2,190 Oct. 17 Surface 575 725 700 875 1,175 12:10PM Mid-depth 1,350 800 740 940 1,350 Bottom 13,750 800 1,200 2,250 1,950 Oct. 18 Surface 875 1,225 1,075 1,270 1,940 12:15PM Mid-depth 1,130 1,200 1,420 1,630 2,200 Bottom 12,900 1,220 1,560 3,750 2,080 Oct* 27 Surface 145 21 19 62 267 7:05AM Mid-depth 110 18 20 95 267 Bottom 600 22 22 200 290 Oct. 28 Surface 1,050 1,250 . 1,350 1,400 2,100 8:50AM Mid-depth 2,650 1,300 .1,550 1,800 2,300 Bottom 14,900 1,310 1,900 5,000 2,250 Oct. 29 Surface 135 40 25 27 200 8:45AM Mid-depth 7,750 75 70 365 290 Bottom 15,300 13,050 710 14,150 195 Nov. 5 Surface 580 880 760 1,000 1,500 2:50PM Mid-depth 1,560 970 1,000 2,150 1,500 Bottom 3,050 1,700 1,050 3,350 1,900 Nov. 16 Surface 440 520 520 504 790 12:35PM Mid-depth 810 590 1,140 680 1,020 Bottom 1,450 600 1,220 1,280 1,200 Nov. 19 Surface 1,820 2,500 2,690 3,250 3,650 2:15PM Midrdepth 2,600 2,700 2,800 3,650 4,200 Bottom 4,050 2,700 3,550 7,300 4,550 Dec. 3, 4, - Samples from all depths - Maximum 16. Dec. 17 Surface 1,650 1,750 1,850 2,100 2,650 2:25PM Mid-depth 2,200 1,900 2,400 2,650 2,700 Bottom 14,000 1,900 3,000 4,950 2,900 Dec. 18 Surface 2,350 2,700 2,850 3,250 3,450 2:30PM Mid-depth 2,550 2,850 2,950 3,400 Bottom 13,900 2,850 4,150 6,850 3,800 170 Table 7 (continued) Tide cycle; ono hour before to low tide. Parts per million Date Position Stations 8 9 10 11 12 1934 Dec. 31 Surface 1,970 1,510 1,510 1,320 1,250 1:05PM Mid-depth 2,000 1,750 1,650 1,350 6,950 Bottom 2,000 13,350 2,650 3,000 14,600 1935 Jan. 2 Surface 41 38 55 83 114 2:20PM Mid-depth 116 39 55 89 119 Bottom 4,350 39 55 95 161 Jan. 14, 15, 16, - Samples from all depths - Maximum 16, Jan. 29 Surface 480 11:50AM Mid-depth 550 Bottom 1,200 Jon. 31 Surface 580 2:15PM Mid-depth 760 Bottom 1,900 Feb, 1 Surface 910 920 580 650 2:10PM Mid-depth 5-,140 900 660 Bottom 1,130 940 1,020 760 Feb, 12 Surface 480 470 400 670 570 12 j 0.0AM Mid-depth 1,290 1,620 1,110 810 1,270 Bottom 10,250 2,150 1,300 4,300 1,900 Feb. 14 Surface 620 610 530 790 820 2:20PM Mid-depth 2,050 1,800 530 1,650 1,400 Bottom 11,150 1,950 1,170 2,600 1,900 Feb. 15 Surface 460 580 620 430 530 2:30PM Mid-depth 900 670 600 500 640 Bottom 13,200 710 640 1,400 690 Feb. 27 Surface 420 530 510 670 870 12;05PM Mid-depth 560 545 510 740 885 Bottom 1,450 560 520 1,410 900 Feb, 28 Surface 102 11 11 10 19 12:50PM Mid-dejbth 125 10 9 12 19 Bottom 155 10 10 19 24 171 Table 7 (continued) Tide cycle: ono hour boforo to low tide # Parts per million Date Position Stations 8 9 10 11 12 1935 Mar. 13, 15, 16, 29, 31, Apr, 1, - Samples from all depths - Maximum 9# Apr, 11 (a) 10:45AM Surfaoe Mid-depth Bottom 600 1,300 13,700 (a) 11:00AM Surface Mid-depth Bottom 540 1,250 13,800 (a) 11:15AM Surface Mid-depth Bottom 590 1,100 14,000 (a) 11:30AM Surface Mid-depth Bottom 550 950 13,900 Apr. 12 12:15PM Surface Mid-depth Bottom 54 47 89 8 11 9 8 9 11 10 11 8 Apr, 14, 15, Maximum 12# 27, 29, May 12, 13, 14, - Samples from all depths - May 15 1:15PM Surface Mid-depth Bottom 5 6 11,850 4- 4 5 6 6 8 6 12 6 May 26 (a) 11:08AM Surface Mid-depth Bottom 510 675 8,400 530 610 615 380 495 990 (a) 1U08PM Surface Mid-depth Bottom 1,440 1,650 7,350 1,870 1,900 3,650 May 27 (a) 12-.08AM Surface Mid-depth Bottom 1,040 1,050 2,950 920 950 950 1,030 1,650 2,100 (a) 12:08PM Surface Mid-depth Bottom 730 1,050 9,150 1,010 1,050 1,050 1,050 1,200 2,800 172 Table 7 (continued) Tide oyole: one hour before to low tide. Parts per million Date Position Stations 1935 8 9 10 11 12 May 28 (a) 12:08AM Surfaoe Mid-depth Bottom 700 2,000 3,100 1,450 2,050 2,050 (a) 1:08AM Surface Mid-depth Bottom 950 1,050 1,050 1,070 1,550 2,150 (a) 12t05PM Surface Mid-depth Bottom 700 1,700 11,600 1,030 1,000 1,100 1,040 1,215 5,400 .1,450 1,650 2,000 May 29 1:08PM Surface Mid-depth Bottom 480 1,250 14,600 750 800 800 740 850 14,050 June 9 10:50AM Surface Mid-depth Bottom 530 1,550 14,050 660 950 1,000 680 850 7,900 June 10 11:08AM Surface Mid-depth Bottom 1,240 12,800 14,550 1,200 1,700 1,800 1,370 1,550 11,800 June 11 11:33AM Surfac e Mid-depth Bottom 190 690 13,850 280 310 310 240 320 3,150 June 13 12:55PM Surface Mid-depth Bottom 130 540 13,600 45 150 170 16 114 1,210 June 21 8:29AM Surface Mid-depth Bottom 6 7 8 June 24 11:03AM Surface Mid-depth Bottom 13 7 9 7 6 7 7 8 9 June 27 12:55PM Surface Mid-depth Bottom 31 92 5,000 6 9 19 9 11 15 173 Table 7 (continued) Tide oycle; one hour before to low tide. Parte per million Date Position Stations 1935 8 9 10 11 July 6 8:35AM Surface Mid-depth Bottom 1,350 1,700 3,150 1,600 1,600 1,600 July 9 11:05AM Surface Mid-depth Bottom 73 107 143 8 10 9 9 11 11 July 10 11:05AM Surfaoe Mid-depth Bottom 45 50 78 6 8 8 7 7 8 July 12 12:45PM Surface Mid-depth Bottom 73 200 12,250 11 19 81 9 11 17 July 25 11:05AM Surface Mid-depth Bottom 1,290 1,600 7,800 1,270 1,650 1,750 1,420 1,500 1,900 July 30 4:08PM Surface Mid-depth Bottom 2,750 11,150 2,850 2,900 3,050 2,800 4,200 6,900 July 31 5:08AM Surface Mid-depth Bottom 2,400 3,300 10,000 2,800 2,700 2,850 2,900 3,400 6,100 Aug. 8 11:00AM Surface Mid-depth Bottom 1,800 9,200 10,050 1,350 2,750 3,700 1,850 4,300 12,500 Aug. 9 10:50AM Surface Mid-depth Bottom 2,800 7,400 14,750 1,700 3,300 4,550 2,800 6,450 13,750 Aug. 10 11:03AM Surface Mid-depth Bottom 3,100 10,700 14,800 2,200 5,900 6,600 2,800 9,900 13,800 Aug. 11 12:55PM Surface Mid-depth Bottom 2,300 4,400 10,600 2,900 3,500 3,800 3,400 5,100 8,400 174 Table 7 (continued) Tide cycle: one hour before to low tide* Parts per million Date Position Stations 1935 8 9 10 11 Aug# 22 10:50AM Surface Mid-depth Bottom 2,800 12,600 15,000 2,700 3,900 4,100 3,000 4,800 11,500 Aug# 24 12:45PM Surface Mid-depth Bottom 3,050 4,250 15,400 2,650 3,550 3,700 3,900 7,300 14,400 Sept# 5 10:50AM Surface Mid-depth Bottom 3,200 5,800 6,000 3,600 3,800 5,100 3,300 4,400 6,150 Sept* 7 1:18PM Surface Mid-depth Bottom 1,100 13,700 14,800 800 1,900 11,700 800 1,700 12,950 Sept.17 11:05AM Surface Mid-depth Bottom 4,200 8,200 13,000 2,900 4,950 6,700 2,400 5,350 9,000 Sept#19 11:00AM Surface Mid-depth Bottom 410 780 14,350 710 620 1,000 580 790 4,250 Sept.20 12:53PM Surface Mid-depth Bottom 750 6,600 13,850 650 1,200 7,550 600 1,000 11,650 Sept.21 12:53PM Surface Mid-depth Bottom 2,250 5,000 14,950 1,600 2,850 3,350 2,700 3,500 11,950 Oct. 7 12:03PM Surface Mid-depth Bottom 5,150 5,900 11,200 5,250 5,800 6,050 5,000 6,500 9,100 Oct. 9 1:48PM Surface Mid-depth Bottom 2,500 3,200 11,300 2,900 3,100 3,000 3,300 3,900 6,400 Oct. 10 1:55PM Surface Mid-depth Bottom 3,550 3,800 8,350 175 Table 7 (continued) Tide cyole: one hour before to low tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Oct. 21 11:48AM Surface Mid-depth Bottom 5,100 10,300 15,700 3,900 6,100 4,300 4,200 10,400 14,400 Oct. 23 1:53PM Surface Mid-depth Bottom 4,000 5,000 10,000 4,300 5,100 5,200 4,900 5,300 4,450 Nov. 5 11:58AM Surface Mid-depth Bottom 4,000 4,100 4,100 4,000 4,400 6,600 Nov. 8 1:40PM Surface Mid-depth Bottom 6,000 6,950 6,400 Nov. 19 11:48AM Surface Mid-depth Bottom 1,000 2,350 14,350 1,250 2,050 2,100 1,600 1,700 11,450 Nov. 21 1:45PM Surface Mid-depth Bottom 940 1,300 2,950 Nov. 22 1:50PM Surface Mid-depth Bottom 1,900 2,050 7,700 3,050 1,850 1,950 2,000 2,200 4,400 Dec. 4 11:15AM Surface Mid-depth Bottom 9 7 9 9 11 12 25 32 34 Dec. 7 2:10PM Surface Mid-depth Bottom 2,450 2,800 3,200 2,800 2,800 2,850 2,900 4,300 4,050 Dec. 18 11:25AM Surface Mid-depth Bottom 1,450 1,750 1,800 1,400 2,250 7,500 1,950 2,000 2,000 Dec. 19 11:35AM Surface Mid-depth Bottom 1,750 2,700 9,150 2,400 2,500 2,500 2,450 3,200 3,400 2,700 3,100 7,850 2,900 3,150 3,500 170 Table 7 ( continued) Tide cycle: one hour before to low tide • Parts per million Date Position Stations 8 9 10 11 12 1935 Dec. 21 Surface 1,500 2:OOPM Mid-depth Bottom Dec. 22 Surface 2,200 1,950 2,850 3,000 4,350 2:15PM Mid-depth 7,800 3,250 3,400 5,700 6,000 Bottom 8,900 3,900 5,350 9,950 5,700 Dec. 23 Surface 6,150 5,700 5,800 7,400 8,250 2:15PM Mid-depth 7,650 5,850 9,150 9,650 8,850 Bottom 8,400 7,050 9,300 10,800 10,600 1936 Jan. 3 Surface 5,050 6,200 7,050 11:15AM Mid-depth 7,300 6,800 7,050 Bottom 7,450 6,800 7,200 Jan. 5 Surface 700 650 650 700 2:15PM Mid-depth 650 750 700 700 Bottom 650 650 1,000 650 Jan. 13 Surface 11,000 2,000 2,750 7,100 2,750 7:15 AM Mid-depth 1,700 1,950 2,600 5,900 2,850 Bottom 1,450 1,950 2,100 2,750 2,900 Jan. 14 Surface 82 15 19 34 94 8:15AM Mid-depth 69 15 19 44 98 Bottom 310 16 19 57 110 Jan. 15 Surface 850 1,000 1,050 1,150 1,450 9i25AM Mid-depth 1,100 1,100 1,250 1,250 1,500 Bottom 9,400 1,150 1,450 6,350 1,650 Jan. 16 Surface 430 430 490 650 810 9:55AM Mid-depth 550 420 530 700 900 Bottom 630 440 530 1,020 950 Jan. 17 Surface 17 11 10 14 24 11:10AM Mid-depth 42 10 16 12 20 Bottom 38 13 12 13 45 177 Table 7 (continued) Tide oyole: one hour before to low tide. Parte per million Date Position Stations 1936 8 9 10 11 12 Jan. 18 11:50AM Surface Mid-depth Bottom 138 150 210 100 109 110 93 91 100 141 240 200 220 520 240 Jan. 19 1:00PM Surface Mid-depth Bottom 800 800 900 700 700 750 650 700 700 850 800 1,350 900 1,350 900 Jan. 29 8:15AM Surface Mid-depth Bottom 940 1,850 1,800 Jan. 31 10:15AM Surface Mid-depth Bottom 1,800 2,800 3,600 Feb, 1 11:25AM Surface Mid-depth Bottom 1,150 1,450 2,350 Feb. 2 12:00AM Surface Mid-depth Bottom 850 1,200 1,400 Feb. 14 9:10AM Surface Mid-depth Bottom 2,550 7,850 11,800 3,250 3,200 3,350 2,500 3,050 3,150 Feb. 15 (a) 9:55AM Surface Mid-depth Bottom 2,600 5,400 7,100 2,400 4,000 4,450 2,000 2,350 3,000 (a) 10:20AM Surface Mid-depth Bottom 1,850 4,150 7,700 Feb. 17 11:39AM Surface Mid-depth Bottom 3,050 6,000 7-, 000 3,200 6,000 6,600 Feb, 18 12:50PM Surface Mid-depth Bottom 3,200 6,500 7,050 3,900 3,900 6,600 3,000 5,050 5,100 178 Table 7 (continued) Tide cycle: one hour before to low tide. Parts per million Date Position Stations 1936 8 9 10 11 Feb, 19 1:30PM Surface Mid-depth Bottom 700 2,100 5,450 650 700 2,050 750 800 750 Feb. 28 8:25AM Surface Mid-depth Bottom 1,200 1,300 1,450 1,200 1,200 1,250 Feb, 29 9:30AM Surface Mid-depth Bottom 800 1,550 2,900 800 2,500 2,650 800 950 2,050 800 1,600 5,650 Mar, 1 10:37AM Surface Mid-depth Bottom 950 2,500 2,700 1,000 1,050 1,900 Mar. 2 11:41AM Surface Mid-depth Bottom 1,250 5,750 6,600 1,700 6,100 6,800 Mar • 3 12:41PM Surface Mid-depth Bottom 1,850 4,500 5,200 1,600 2,400 4,450 1,800 2,600 5,700 Mar, 30, 31, Maximum 12 - Apr. 2,3, 24, Except: Sta. , 25, 26, 27,. 11, Apr. 28,. 28, - Samples from all d< - B-70. Apr. 29 11:20AM Surface Mid-depth Bottom 5 5 55 12 21 600 May 6, 7, 8, Except: Sta. 9, 9, 11, 21, - May 21, - Samples from B-22. all depths - Maximum 9 - May 22 5:05AM Surface Mid-depth Bottofe 380 1,700 390 370 2,000 470 May 28 (a) 10:05AM Surface Mid-depth Bottom 1,290 1,300 1,350 1,630 1,800 8,050 (a) 11:05PM Surface Mid-depth Bottom 1,290 1,200 1,250 1,290 1,500 2,650 179 Table 7 (continued) Tide oyole: one hour before to low tide. Parte per million Date Position Stations 1936 8 9 10 11 12 June 3 3s05PM Surface Mid-depth Bottom 1,600 1,850 2,200 2,650 4,500 7,500 June 4 4:05AM Surface Mid-depth Bottom 4,150 5,250 6,250 2,300 6,650 9,350 June 9 (a) 7:05AM Surface Mid-depth Bottom 4,400 4,200 4,750 4,750 5,550 7,850 (a) 7:05PM Surface Mid-depth Bottom 5,000 6,200 9,600 4,950 9,800 June 15 12:33PM Surface Mid-depth Bottom 2,900 3,100 4,800 3,250 3,300 3,400 3,450 3,600 5,900 June 16 1:26PM Surface Mid-depth Bottom 1,850 2,350 2,000 2,100 2,100 2,900 June 17 2:27PM Surface Mid-depth Bottom 1,900 3,250 1,850 1,900 1,900 2,550 June 18 3:34PM Surface Mid-depth Bottom 1,550 1,600 3,100 1,500 1,600 1,600 1,500 1,600 1,950 Nov. 21 9:40AM Surface Mid-depth Bottom 800 800 3,900 700 800 900 1,000 1,200 1,500 900 1,000 1,500 1,100 1,000 1,200 Nov, 22 10:40AM Surface Mid-depth Bottom 1,400 2,200 3,500 1,800 2,000 6,900 2,200 1,800 1,900 1,900 2,200 5,750 4,000 2,500 2,750 Nov, 23 11:40AM Surface Mid-depth Bottom 1,050 3,100 4,150 1,000 1,050 1,100 1,000 1,050 1,300 1,150 1,500 2,100 1,500 1,550 1,600 180 Table 7 (continued) Tido oyclo: one hour boforo to low tido • Parts per million Date Position Stations 1936 8 9 10 11 12 Dec. 4 8:40AM Surface Mid-depth Bottom 1,700 1,750 1,850 1,850 1,950 1,950 1,900 2,350 8,250 1,850 2,250 3,700 2,150 2,500 2,800 Dec. 5 9:45AM Surface Mid-depth Bottom 1,300 1,250 1,250 1,200 1,300 1,350 1,250 1,800 8,650 1,350 1,400 3,000 1,750 1,950 2,800 Dec. 6 10:45AM Surface Mid-depth Bottom 1,950 3,950 9,400 1,950 3,950 6,300 2,500 3,050 9,300 3,150 3,350 10,700 2,950 3,050 3,900 Dec. 7 11:50AM Surface Mid-depth Bottom 1,850 1,850 1,850 1,900 1,950 2,000 1,900 1,900 2,100 1,800 1,900 2,300 1,900 1,950 2,000 Dec. 8 12:45PM Surfac e Mid-depth Bottom 1,250 2,500 10,450 1,050 1,350 1,500 1,450 1,950 2,750 1,300 3,400 8,000 1,200 1,300 2,000 Dec• 19 8:00AM Surface Mid-depth Bottom 13 10 8 10 16 13 11 14 44 54 60 Dec. 20 8:55AM Surface Mid-depth Bottom 940 1,600 970 1,400 870 1,000 780 1,050 940 1,000 1,200 Dec. 21, 22, 23 Feb. 1, 2, 1937 , 24, 1936, - Samples , Jan from . 5, 6, 7, 17, 18, 19, 20, all depths - Maximum 23» 21, 22, 31, 1937 Feb. 3 10:35AM Surface Mid-depth Bottom 720 800 750 700 700 800 820 3,300 9,600 830 3,200 8,450 680 750 850 Fob. 4 11:35AM Surface Mid-depth Bottom 1,700 1,850 2,000 2,100 3,050 3,200 2,350 3,600 3,400 2,250 6,850 8,600 2,600 2,750 2,800 Feb. 5 12:35PM Surface Mid-depth Bottom 500 900 1,350 680 900 1,100 850 1,000 1,900 910 3,650 6,050 980 1,000 1,200 1J81 Table 7 (continued) Tide cyclo: one hour boforo to low tide • Parts per million Date Position Stations 8 9 10 11 12 1937 Feb. 6 Surface 1,350 1,100 1,650 1,400 2,000 1:15PM Mid-depth 3,150 1,350 2,800 4,300 2,050 Bottom 7,200 1,650 3,600 6,700 2,850 Feb. 8 Surface 4,600 2,350 4,550 4,200 1,800 3:05PM Mid-depth 12,600 11,300 12,550 10,750 10,250 Bottom 13,000 12,700 12,900 13,150 12,200 Feb. 16 Surface 9 9 7 9 13 8:15AM Mid-depth 11 9 5 9 15 Bottom 9 9 9 23 47 Feb. 17 Surface 33 7 9 8 12 9:20AM Mid-depth 39 7 11 11 21 Bottom 17 11 5 11 59 Feb. 18 Surface 9 9 7 43 73 10:15AM Mid-depth 7 7 7 81 77 Bottorn 9 7 9 81 93 Feb. 19 Surface 5 5 7 7 9 11:30AM Mid-depth 7 6 6 11 9 Bottom 7 7 6 10 13 Feb. 20 Surface 11 8 7 8 16 12:25PM Mid-depth 9 8 7 11 23 Bottom 25 7 8 11 26 Mar. 3 Surface 340 240 260 300 260 8:55AM Mid-depth 250 330 260 320 260 Bottom 340 260 320 360 320 Mar. 4 Surface 420 540 600 460 720 9:50AM Mid-depth 460 560 620 900 76u Bottom 440 580 900 5,200 770 Mar. 5 Surface 300 260 320 300 330 10;45AM Mid-depth 300 330 320 320 340 Bottom 320 1,160 380 5,300 2,000 Mar. 6 Surface 1,000 1,000 1,200 1,000 1,300 11:40AM Mid-depth 1,000 1,300 2,000 1,100 1,200 Bottom 1,200 1,200 6,700 1,300 1,100 182 * Table 7 (continued) Tide oyolos one hour before to low.tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Mar. 7 Surface 280 320 240 340 440 12:35PM Mid-depth 320 310 250 560 360 Bottom 300 320 320 1,060 320 Mar• 18 Surface 11 . 7 9 11 31 9:00AM Mid-depth 9 7 11 13 41 Bottom 10 8 9 11 43 Mar. 22 Surface 7 5 6 8 11 1:05PM Mid-depth 5 7 7 9 11 Bottom 7 7 9 7 9 Apr. 3 Surface 440 490 430 10:05AM Mid-depth 510 540 500 Bottom 510 530 560 Apr. 4 Surface 1,100 1 ,200 1,200 10:55AM Mid-depth 1,200 1 ,400 1,300 Bottom 1,100 1 ,300 1,400 Apr. 5 Surface 240 200 240 300 320 11:50AM Mid-depth 220 240 260 540 300 Bottom 240 240 340 5,550 360 Apr. 6 Surface 480 410 420 430 470 12:40PM Mid-depth 480 410 550 450 460 Bottom 500 430 640 660 530 Apr. 9, 22, 28, May 4, 8, 127-17, 20, 26, Samples from all depths - Maximum 11. June 5 Surface 260 200 200 12:33PM Mid-depth 200 140 160 Bottom 300 180 140 June 9 Surface 220 180 100 4:23PM Mid-depth 240 170 150 Bottom 290 190 160 June 12 Surface 400 840 740 6:53AM Mid-depth 780 980 760 Bottom 1,100 960 940 183 Table 7 (continued) Tide oyclo: ono hour before to low tide, Pc^rts por million Date Position Stations 1937 8 9 10 11 June 14 8:24AM Surface Mid-depth Bottom 160 260 220 160 160 160 160 180 130 June 17 11:18AM Surface Mid-depth Bottom 180 180 220 220 200 200 220 200 220 June 29 8:16AM Surface Mid-depth Bottom 360 620 800 400 480 500 380 660 820 June 30 8:38AM Surface Mid-depth Bottom 680 1,000 740 800 840 860 700 800 2,080 July 1 (a) 9:30AM Surface Mid-depth Bottom 440. 440 500 (a) 9:40AM Surface Mid-depth Bottom 480 460 460 (a) 9:50AM Surface Mid-depth Bottom 480 460 500 (a) 10:00AM Surface Mid-depth Bottom 460 460 480 (a) 10:10AM Surface Mid-depth Bottom 380 440 480 July 12 (a) 7:00AM Surface Mid-depth Bottom 3,600 3,700 3,900 (a) 7:15AM Surface Mi d-depth Bottom 2,800 2,800 3,000 184 Table 7 (continued) Tide oyclo: ono hour beforo to low tido. Parts par million Dato Position Stations 8 9 10 11 1937 July 12 (a) Surface 2,900 7:30AM Mid-dopth 3,000 Bottom 3,100 (a) Surface 2,900 7:45AM Mid-depth 2,900 Bottom 3,000 July 14 (a) Surface 1,100 8:30AM Mid-depth 1,400 Bottom 1,600 (a) Surface 750 8:45AM Mid-depth 1,400 Bottom 1,500 (a) Surface 1,600 9:00AM Mid-depth 1,300 Bottom 1,400 (a) Surfo.ce 900 9:15AM Mid-depth 1,100 Bottom 1,100 (a) Surface 900 9:30AM Mid-depth 1,300 Bottom 1,200 July 20 (a) Surface 1,700 2:00PM Mid-depth 4,400 Bottom 6,600 (a) Surface 1,700 2-.15PM Mid-depth 5,000 Bottom 6,500 (a) Surface 1,700 2:30BH Mid-depth 3,400 Bottom 7,300 July 22 (a) Surface 1,300 3:15PM Mid-depth 1,700 Bottom 2,100 185 Table 7 (continued) Tide cycle: ono hour buforo to low tide. Parts pur million Date Position Stations 8 9 10 11 1937 July 22 (a) Surface . 2,000 3:30PM Mid-depth 1,800 Bottom 2,000 (a) Surface 1,000 3:45PM Mid-depth 1,500 Bottom 2,000 (a) Surface 1,000 4:00PM Mid-depth 1,600 Bottom 1,800 July 26 (a) Surface 4,150 6:00AM Mid-depth 4,300 Bottom 4,100 (a) Surface 3,900 6:15AM Mid-depth 4,250 Bottom 4,300 (a) Surface 3,600 6:30AM Mid-depth 3,950 Bottom 3,900 July 27 (a) Surface 4,700 6:30AM Mid-depth 4,800 Bottom 4,900 (a) Surface 4,100 6:45AM Mid-depth 4,200 Bottom 4,400 (a) Surface 4,100 7:00AM Mid-depth 4,200 Bottom 4,200 (a) Surface 3,800 7:15AM Mid-depth 3,850 Bottom 3,900 July 29 (a) Surface 2,360 7:45AM Mid-depth 2,900 Bottom 3,000 186 Table 7 (continued) Tide oyole: one hour before to low tide. Parts per million Date Position Stations 8 9 10 11 1937 July 29 (a) Surface 2,560 8:00AM Mid-depth 2,600 Bottom 2,700 (a) Surface 2,480 8:15AM Mid-depth 2,500 Bottom 2,500 (a) Surface 2,270 8:30AM Mid-depth 2,600 Bottom 2,700 (a) Surface 1,830 8:45AM Mid-depth 2,000 Bottom 2,200 (a) Surface 3,850 8:45PM Mid-depth 4,150 Bottom 4,200 (a) Surface 3,450 9:OOFM Mid-depth 3,600 Bottom 3,750 (a) Surface 3,100 9:15PM Mid-depth 3,300 Bottom " 3,350 (a) Surface 3,150 9:30PM Mid-depth 2,850 Bottom 3,300 July 31 (a) Surface 2,500 9:45AM Mid-depth 3,000 Bottom 6,800 (a) Surface 2,900 10:00AM Mid-depth 3,300 Bottom 5,000 (a) Surface 1,900 10:15AM Mid-depth 3,200 Bottom 4,400 187 Table 7 (continued) Tide oyolei one hour before to low tide. Parts per million Date Position Stations 8 9 10 11 1937 July 31 (a) Surface 2,200 10:30AM Mid-depth 3,300 Bottom 3,900 Aug. 1 (a) Surface 3,300 10:45AM Mid-depth 3,400 Bottom 4,000 (a) Surface 3,300 11:00AM Mid-depth 3,700 Bottom 4,200 (a) Surface 3,300 11:15AM Mid-depth 3,900 Bottom 3,800 (a) Surface 3,000 11:30AM Mid-depth 3,700 Bottom 3,700 Aug. 2 (a) Surface 3,200 11:45AM Mid-depth 3,400 Bgttom 3,700 (a) Surface 3,800 12:00AM Mid-depth 4,000 Bottom 4,000 (a) Surface 3,200 12:15PM Mid-depth 3,800 Bottom 4,000 (a) Surface 3,100 12:30PM Mid-depth 3,350 Bottom 3,500 (a) Surface 3,400 12:45PM Mid-depth 3,500 Bottom 3,500 Aug. 3 (a) Surface 3,300 12:45PM Mid-depth Bottom 3,600 188 Table 7 (continued) Tide cycle: one hour before to low tide. Parts per million Date Position Stations 8 9 10 11 1937 Aug. 3 (a) Surface 3,400 1:00PM Mid-depth 3,700 Bottom 3,900 (a) Surface 3,400 1:15PM Mid-depth 3,500 Bottom 3,800 (a) Surface 2,500 1:30PM Mid-depth 2,800 Bottom 3,000 Aug, 5 (a) Surface 2,300 2:45PM Mid-depth 3,500 Bottom 3,200 (a) Surface 2,650 3:00PM Mid-depth 2,900 Bottom 3,000 (a) Surface 2,600 3:15PM Mid-depth 2,900 Bottom 2,900 (a) Surface 2,100 3:30PM Mid-depth 2,300 Bottom 2,450 189 Table 8 Tide cycle: low tide to one hour after. Parts per million Date Position Stations 8 9 10 11 12 1934 Oct. 4 Surface 539 2:55PM Mid-depth 840 Bottom 7,580 Oct. 5 Surface 300 756 840 870 3:40PM Mid-depth 790 980 1,020 Bottom 940 1,390 3,550 1,170 Oct. 19 Surface 1,040 1,140 1,180 1,270 900 2:10FM Mid-depth 2,000 1,150 1,625 1,925 2,075 Bottom 12,850 1,250 1,650 4,150 2,150 Oct. 27 Surface 85 19 22 45 90 8:10AM Mid-depth 130 18 23 50 87 Bottom 220 21 71 98 Oct. 28 Surface 760 1,830 900 1,000 1,550 9:40AM Mid-depth 5,500 960 1,000 1,200 1,550 Bottom 15,100 960 1,250 5,800 1,700 Oct. 29 Surface 120 61 34 32 70 10:45AM Mid-depth 14,600 165 65 2,300 150 Bottom 15,550 13,550 12,600 15,600 135 Oct. 31 Surface 820 820 1,500 1,500 1,600 12:05PM Mid-depth 5,600 1,300 1,450 1,950 1,900 Bottom 14,300 1,400 2,250 13,950 2,000 Nov. 1 Surface 1,500 1,920 2,050 2,180 2,800 12:50PM Mid-depth 2,500 1,950 2,270 2,330 2,950 Bottom 12,000 1,970 2,800 5,850 3,300 Nov. 15 Surface 410 460 460 460 730 12:25PM Mid-depth 1,100 480 480 450 900 Bottom 6,700 490 780 1,250 1,050 Nov. 30 Surface 208 151 171 158 370 12:30PM Mid-depth 310 153 177 196 380 Bottom 6,700 156 189 425 390 Dec. 14 Surface 93 153 159 177 214 12:30PM Mid-depth 140 850 161 192 1,200 Bottom 15,150 850 1,400 5,250 1,300 190 Table 8 (continued) Tide oycle: low tide to one hour after. Parts per million Date Position Stations 8 9 10 11 12 1935 Jan. 1 Surface 4,400 4,600 4,800 5,700 6,250 2:20PM Mid-depth 7,550 5,050 5,100 5,800 7,300 Bottom 12,450 6,000 6,750 9,550 7,600 Jan. 28 Surface 94 12:20PM Mid-depth 109 Bottom 260 Jan. 30 Surface 16 2:15PM Mid-depth 27 Bottom 47 Feb. 11 Surface 490 410 550 500 530 12:20PM Mid-depth 1,180 1,060 740 770 870 Bottom 7,000 1,150 830 1,550 1,050 Feb. 13 Surface 380 410 440 410 420 2:25PM Mid-depth 2,000 420 420 1,000 670 Bottom 14,050 1,120 990 1,960 840 Feb. 26 Surface 450 460 740 640 610 12:05PM Mid-depth 3,370 620 730 730 690 Bottom 13,750 690 845 2,150 690 Mar- 1,12, 28, 30, - Samples from all depths - Maximum 15 - Except: Sta. 8, Mar- 1, - S-24. Apr. 11 (a) Surface 810 11:45AM Mid-depth 470 Bottom 13,900 (a) Surface 520 12:00AM Mid-depth 740 Bottom 14,100 (a) Surface 390 12:15PM Mid-depth 760 Bottom 13,700 (a) Surface 440 12:30PM Mid-depth 450 Bottom 13,600 191 Table 8 (continued) Tide oyole: low tido to one hour after- Parts per million Date Position Stations 8 9 10 11 12 1935 Apr. 11 (a) Surface 400 420 400 490 12:15PM Mid-depth 850 400 480 530 Bottom 3,850 430 650 550 Apr. 13 Surface 7 6 7 8 2:00EM Mid-depth 13 6 7 7 Bottom 20 8 9 7 Apr- 26, 28, May 11, 13, - Samples from all depths - Maximum 7. May 26 Surface 264 270 220 12:08PM Mid-depth 660 360 325 Bottom 5,650 370 680 May 27 (a) Surface 460 1:08AM Mid-depth 450 550 Bottom 550 1,400 (a) Surface 470 550 530 1:08PM Mid-depth 1,370 540 1,100 Bottom 570 13,950 2,250 May 28 (a) Surface 880 1:15AM Mid-depth 900 Bottom 1,750 (a) Surface 430 510 2:08AM Mid-depth 390 900 Bottom 410 1,100 June 8 Surface 300 280 260 11:05AM Mid-depth, 3,100 340 330 Bottom 14,900 370 1,500 June 12 Surface 49 10 10 1:08m Mid-depth 140 13 11 Bottom 13,150 18 36 June 23 Surface 11 11 7 10:50AM Mid-depth 8 7 7 Bottom 10 9 10 June 25 Surface 5 11:58AM Mid-depth 6 Bottom 7 192 Table 8 (continued) Tide cycles low tide to one hour aftor. Parts per million Date Position Stations 8 9 10 11 1935 • June 26 Surface 11 7 8 1:08PM Mid-depth 10 9 Bottom 13 11 10 July 5 Surface 850 950 9:35AM Mid-depth 1,200 1,150 Bottom 4,150 1,200 July 10 (a) Surface 51 10 9 12:05AM Mid-depth 64 9 14 Bottom 64 11 12 (a) Surface 38 8 10 1:05AM Mid-depth 33 9 10 Bottom 43 9 11 (a) Surface 11 6 7 12:05PM Mid-depth 72 7 9 Bottom 66 8 10 July 11 Surface 29 5 8 1:30PM Mid-depth 18 7 7 Bottom 12 6 9 July 24 Surface 670 870 980 11:13AM Mid-depth 2,880 840 1,070 Bottom 13,950 950 5,150 July 26 Surface 970 1,050 1,050 12:50PM Mid-depth 1,300 1,200 1,200 Bottom 8,050 1,250 5,600 July 27 Surface 1,050 1,240 810 1:23PM Mid-depth 4,750 1,400 1,900 Bottom 14,300 1,550 7,200 July 30 Surface 2,200 2,300 2,300 5:08PM Mid-depth 2,600 4,500 Bottom 2,850 6,550 July 31 Surface 1,700 1,800 1,700 6:08AM Mid-depth 2,800 2,000 2,050 Bottom 6,950 2,100 3,800 193 Table 8 (continued) Tide cyolos low tide to ono hour after. Parts per million Date Position Stations 8 9 10 11 1935 Aug. 7 Surface 3,050 2,750 2,650 11:05AM Mid-depth 14,700 8,250 6,600 Bottom 15,400 10,600 13,250 Aug. 9 Surface 1,800 1,350 5,450 12:50PM Mid-depth 9,850 3,850 4,200 Bottom 11,550 7,750 13,850 Aug. 10 Surface 1,700 1,900 2,500 1:35PM Mid-depth 14,500 3,000 4,700 Bottom 15,100 3,300 10,700 Aug. 21 Surface 2,300 3,300 3,050 11:05AM Mid-depth 8,950 4,000 4,700 Bottom 15,300 3,900 8,650 Aug. 23 Surface 5,100 2,000 2,400 12:40PM Mid-depth 2,300 3,300 3,650 Bottom 8,950 3,800 13,100 Sept. 4 Surface 7,900 6,700 5,900 11:28AM Mid-depth 12,800 11,900 11,600 Bottom 14,500 12,400 14,400 Sept.18 Surface 1,600 1,500 1,600 11:35AM Mid-depth 8,400 7,300 3,400 Bottom 4,100 10,000 9,400 Sept.19 Surface 570 600 590 12:50PM Mid-depth 8,100 5,900 3,600 Bottom 13,850 8,300 10,800 Oct. 6 Surface 1,550 1,200 1,300 11:58AM Mid-depth 14,300 2,650 3,050 Bottom 15,100 10,950 14,600 Oct. 8 Surface 4,000 4,200 4,300 1:48PM Mid-depth 4,800 4,400 4,900 Bottom 7,400 4,700 7,000 Oct. 19 Surface 1,650 11:40AM Mid-depth 3,450 Bottom 11,500 Table 8 (continued.) Tide cycle: low tide to one hour aftor. Parts per million Da to Position Stations 1935 8 9 10 11 Oct. 20 11:58AM Surface Mid-depth Bottom 2,750 3,400 13,650 2,900 2,950 3,000 3,150 3,450 6,300 Oct. 21 1:40PM Surfaco Mid-depth Bottom 3,200 7,550 13,500 Oct. 22 1:48PM Surface Mid-depth Bottom 4,450 5,550 10,300 4,900 5,350 5,800 5,200 6,400 8,700 Nov. 3 9:53AM Surface Mid-depth Bottom 2,550 3,600 4,450 Nov. 5 12:05PM Surface Mid-depth Bottom 3,850 4,700 8,500 Nov. 6 1:48PM Surface Mid-depth Bottom 1,200 2,600 4,450 1,250 1,400 1,550 1,150 1,400 2,500 Nov. 7 2:05PM Surface Mid-depth Bottom 3,100 3,850 9,600 3,100 3,100 3,200 3,200 3,850 4,900 Nov. 18 11:48AM Surface Mid-depth Bottom 290 440 750 220 220 220 220 240 250 Nov. 20 1:48PM Surface Mid-depth Bottom 520 1,100 4,300 1,050 540 600 560 610 2,600 Nov. 21 1:50PM Surface Mid-depth Bottom 750 2,550 7,250 850 950 900 Doc. 3 11:20AM Surface Mid-depth Bottom 14 13 14 11 12 13 9 14 10 195 Tablo 8 (continuod) Tide oyclo: low tldo to ono hour aftor. Parts por million Date Position Stations 1935 8 9 10 11 12 Doc. 6 2:05PM Surfaco Mid-depth Bottom 116 128 200 12 18 16 41 102 112 Dec. 17 11:3QAM Surface Mid-depth Bottom 750 1,000 12,450 1,000 1,000 1,100 Dec. 18 11:30AM Surfaoe Mid-depth Bottom 1,200 7,750 7,700 1,350 1,400 1,500 Dec. 20 2:15PM Surface Mid-depth Bottom 1,700 2,150 7,200 1,800 2,000 2,150 1,950 2,200 2,650 1,950 2,150 6,200 2,350 2,400 2,600 Dec. 21 2:15PM Surface Mid-depth Bottom 1,700 4,800 2,950 1,400 1,050 600 1936 Jan. 1 11:15AM Surface Mid-depth Bottom 2,400 4,900 10,750 2,800 4,700 4,750 2,800 4,100 4,100 2,600 5,900 6,400 3,600 3,600 3,900 Jan. 4 2:15PM Surface Mid-depth Bottom 260 1,100 2,400 260 310 315 270 310 415 240 580 710 460 540 590 *12W Jan. 29 9:00AM Surface Mi d-depth Bottom 515 875 1,200 610 620 Jan. 30 10:05AM Surface Mid-depth Bottom 1,400 1,600 2,300 ♦Station 12?/ is known as "Perrson's Dock" 100 ft. north of Saybrook Highway Bridge, and approximately on line with station 12 on the bridge. 196 Table 8 (continued) Tide cycle: low tide to one hour after. Parts per million Date Position Stations 1936 8 9 10 11 ' 12W Jan. 31 11:1QAM Surface Mid-depth Bottom 1,550 1,950 2,600 1,500 1,800 2,100 Feb. 1 12:15PM Surface Mid-depth Bottom 1,000 1,150 1,600 700 800 1,100 Feb. 2 1:15PM Surface Mid-depth Bottom 600 650 700 410 445 465 Feb. 3 2:10PM Surface Mid-depth Bottom 900 2,400 4,900 1,100 1,250 1,200 Feb. 14 10:10AM Surface Mid-depth Bottom 3,150 10,700 12,000 2,200 3,000 3,500 Feb. 15 11:10AM Surface Mid-depth Bottom 1,500 2,450 3,100 Feb. 16 (a) 12:04PM Surface Mid-depth Bottom 1,650 2,450 5,800 1,350 1,550 2,600 (a) 12:25PM Surface Mid-depth Bottom 1,550 2,600 5,600 1,250 1,300 2,700 1,050 1,250 1,600 Mar. 29, 30, Samples from Apr. 1, 24, 25, 26, 27, all depths - Maximum 53. 28, May 6, 7, 8, 9, 11, 21, • May 28 (a) 11:05AM Surface Mid-depth Bottom 730 750 850 4,400 850 850 (a) 12:05PM Surface Mid-depth Bottom 470 470 540 470 710 1,800 197 Table 8 (continued) Tide cyole: low tide to one hour after- Parts per million Date Position Stations 8 9 10 11 1936 May 29 Surface 610 1,090 12:05AM Mid-depth •TOO 1,500 Bottom 700 3,100 June 3 Surface 850 600 4:05FM Mid-depth 800 900 Bottom 2,400 1,900 June 4 Surface 2,800 2,000 5:05AM Mid-depth 6,250 6,500 Bottom 7,500 8,200 June 9 (a) Surface 2,600 2,650 8:05AM Mid-depth 2,750 2,900 Bottom 3,350 4,850 (a) Surface 2,700 4,000 9:05PM Mid-depth 2,900 4,300 Bottom 2,900 7,800 June 15 Surface 1,750 1:48PM . Mid-depth 1,950 Bottom 2,850 June 16 Surface 1,150 2:50EU Mid-depth 1,300 Bottom 1,700 June 17 Surface 600 3:46PM Mid-depth 800 Bottom 1,400 June 18 Surface 1,400 4:26PM Mid-depth 1,500 Bottom 1,450 June 19 Surface 590 5:30PM Mid-depth 600 Bottom 580 June 20 Surface 260 6:10PM Mid-depth 220 Bottom 610 198 Table 8 (continued) Tide cycle: low tide to ono hour after. Parts per million Date Position Stations 1936 8 9 10 11 July 7 7:42AM Surface Mid-depth Bottom 3,700 5,200 6,150 3,700 5,500 6,200 3,900 4,950 5,200 July 8 8:25AM Surface Mid-depth Bottom 2,900 2,950 4,700 2,450 3,050 3,800 3,100 3,650 4,150 July 9 9:09AM Surface Mid-depth Bottom 2,300 2,650 5,050 1,800 3,150 4,750 2,650 3,100 4,150 July 10 10:18AM Surface Mid-depth Bottom 2,250 2,650 3,200 2,300 2,900 3,200 2,900 3,150 3,450 July 14 1:11PM Surface Mid-depth Bottom 2,200 5,500 7,300 2,000 3,600 7,350 2,150 3,050 5,350 July 19 5:59AM Surface Mid-depth Bottom 3,300 3,800 4,200 3,500 4,200 3,900 4,000 4,300 4,200 Aug. 30 3:3 6PM Surface Mid-depth Bottom 2,500 2,600 2,700 2,900 3,000 3,700 2,900 3,100 4,300 Oct. 22 9:31AM Surface Mid-depth Bottom 170 440 1,750 130 150 150 15 280 500 Oct. 23 10:35AM Surface Mid-depth Bottom 230 230 830 210 220 220 200 240 460 Oct. 24 11:35AM Surface Mid-depth Bottom 660 700 700 880 900 850 780 900 950 Oct. 28 (a) 3:49PM Surface Mid-depth Bottom 130 190 180 15 16 15 19 44 48 199 Table 8 (continued) Tide cyclo s low tide to one hour after. Parts per million Date Position Stations 8 9 10 11 12 1936 Oct* 28 (e) Surface 14 4:03PM Mid-depth 13 Bottom 15 Nov. 6 Surface 600 500 500 10:49AM Mid-depth 500 500 500 Bottom 500 600 500 Nov. 7 Surface 54 7 6 U:52AM Mid-depth 60 7 7 Bottom 67 7 6 Nov. 9 Surface 16 6 9 1:43PM Mid-depth 44 7 8 Bottom 141 8- 9 1937 Jan. 2 Surface 5 5 4 6 8 9:15AM Mid-depth 5 3 5 5 8 Bottom 8 Mar - 20 Surface 71 9 13 12:00AM Mid-depth 117 11 17 Bottom 149 13 15 Apr - 3 Surface 300 11:28AM Mid-depth 320 Bottom 320 Apr- 4 Surface 460 12:19PM Mid-depth 760 Bottom 1,060 Apr. 7 Surface 22 7 32 2:10PM Mid-depth 24 7 9 Bottom 29 25 7 Apr. 9, 16, 28, 30, May 3, 4, 8, 12, 16, 20, 24, 26, 30, - Samples from all depths - Maximum 10. May 31 Surface 23 7 15 9:35 AM Mid-depth 9 3 5 Bottom 5 5 3 200 Table 8 (continued) Tide oyole: low tide to one hour after. Parts per million Date Position Stations 8 9 10 11 1937 June 5, 7, 9, , - Samples from all depths - Maximum 11. June 12 Surface 200 7:57AM Mid-depth 180 Bottom 200 June 13 Surface 9 13 15 9:14AM Mid-depth 35 17 15 Bottom 31 15 15 June 17 Surface 200 12:18PM Mid-depth 200 Bottom 200 June 28 Surface 220 280 200 8:18AM Mid-depth 440 300 300 Bottom 400 280 420 July 1 (a) Surface 400 10:20AM Mid-depth 400 Bottom 400 (a) Surface 440 10:30AM Mid-depth 400 Bottom 400 (a) Surface 340 10:40AM Mid-depth 340 Bottom 390 (a) Surface 280 10:50AM Mid-depth 300 Bottom 320 (a) Surface 300 11:00AM Mid-depth 300 Bottom 300 (a) Surface 260 11:10AM Mid-depth 280 Bottom 300 July 12 (a) 8:00AM Surface Mid-depth Bottom 2,800 3,000 3,200 201 Table 8 (continued.) Date 1937 July 12 (a) 8:15AM 8:30AM (a) (a) 8:45AM July 14 (a) 9:45AM 10:00AM (a) 10:15AM (a) 10:30AM (a) Position Tide oyole: low tide to one hour after- Parts per million Stations 8 9 10 11 Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom 2,800 2,800 3,000 2,100 2,200 2,300 2,100 2,200 2,200 1,000 1,000 1,200 900 900 900 1,000 900 900 900 1,000 900 July 15 Surface 260 260 280 11:36AM Mid-depth 440 680 480 Bottom 480 4,900 1,620 July 20 (a) Surface 1,600 2:45PM Mid-depth 4,600 Bottom 6,500 (a) Surface 1,650 3:00PM Mid-depth 3,100 Bottom 6,500 (a) 3:15PM Surface Mid-depth Bottom 1,800 6,300 7,000 202 Table 8 (continued) Tide oycle: low tide to one hour after Parts per million Date Position Stations 8 9 10 11 1937 July 20 (a) Surface 1,450 3:30PM Mid-depth 5,000 Bottom 6,400 July 26 (a) Surface 3,050 6:45AM Mid-depth 3,850 Bottom 3,600 (a) Surface 3,400 7:00AM Mid-depth 3,500 Bottom 5,150 (a) Surface 2,950 7:15AM Mid-depth 6,250 Bottom 5,150 (a) Surface 2,500 7:30AM Mid-depth 6,580 - Bottom 6,800 (a) Surface 2,700 7:45AM Mid-depth 6,450 Bottom 6,750 July 27 (a) Surface 3,700 7:30AM Mid-depth 3,850 Bottom 3,800 (a) Surface 3,400 7:45AM Mid-depth 3,400 Bottom 3,500 (a) Surface 3,400 8:00AM Mid-depth 3,000 Bottom 3,200 (a) Surface 2,800 8;15AM Mid-depth 2,900 Bottom 3,000 July 29 (a) Surface 1,440 9:00AM Mid-depth 1,700 Bottom 1,900 203 Table 8 (continued) Tide cycle: low tide to one hour after. Parts per million Date Position Stations 8 9 10 11 1937 July 29 (a) Surface 1 330 9:15AM Mid-depth 2 200 Bottom 5 900 (a) Surface 1 200 9:30AM Mid-depth 2 700 Bottom 6 200 (a) Surface 1 080 9:45AM Mid-depth 2 400 Bottom 6 000 (a) Surface 2 800 9:45PM Mid-depth 3 250 Bottom 2 900 (a) Surface 2 200 10:00PM Mid-depth 3 450 Bottom 2 600 (a) Surface 2 050 10:15EM Mid-depth 1 150 Bottom 3 300 (a) Surface 2 100 10:30PM Mid-depth 2 150 Bottom 3 500 July 31 (a) Surface 2 100 10:45AM Mid-depth 5 900 Bottom 8 600 (a) Surface 2 500 11:00AM Mid-depth 5 900 Bottom 9 700 (a) Surface 2 100 11:15AM Mid-depth 6 900 Bottom 11 100 (a) Surface 1 700 U:30AM Mid-depth 9 300 Bottom 11 300 204 Table 8 (continued) Tide oyclei low tide to one hour after- Parts per million Date Position Stations 8 9 10 11 1937 Aug. 1 (a) Surface 3 200 11:45AM Mid-depth 3 520 Bottom 3 700 (a) Surface 3 400 12:00AM Mid-depth 10 300 Bottom 5 800 (a) Surface 3 200 12:15PM Mid-depth 6 600 Bottom 5 800 (a) Surface 2 200 12:30PM Mid-depth 5 100 Bottom 7 700 (a) Surface 2 500 ■ 12:45PM Mid-depth 5 400 Bottom 8 100 Aug. 2 (a) Surface 3 200 1:00PM Mid-depth 3 200 Bottom 4 400 (a) Surface 3 000 1:15PM Mid-depth 3 000 Bottom 3 700 (a) Surface 3 000 1:30PM Mid-depth 4 000 Bottom 4 500 (a) Surface 3 000 1:45PM Mid-depth 3 100 Bottom 4 100 Aug. 3 (a) Surface 2 600 1:45PM Mid-depth 2 600 Bottom 3 000 (a) Surface 2 600 2:00PM Mid-depth 2 900 Bottom 2 800 205 Table 8 (continued) Tide cycle: low tide to one hour after. Parts per million Date Position Stations 8 9 10 11 1937 Aug. 3 (a) Surface 2,600 2:15PM Mid-depth 2,800 Bottom 3,000 (a) Surface 2,100 2:30PM Mid-dep'th 5,700 Bottom 5,400 (a) Surface 2,000 2:45PM Mid-depth 4,800 Bottom 5,800 Aug. 5 (a) Surface 2,000 3:45PM Mid-depth 2,400 Bottom 2,500 (a) Surface 1,500 4:00PM Mid-depth 1,850 Bottom 2,650 (a) Surface 1,550 4:15PM Mid-depth 1,950 Bottom 3,100 (a) Surface 1,250 4:30PM Mid-depth 4,600 Bottom 4,600 206 Table 9 Date" 1934 Oct. 4 3:15PM Oct. 5 3:55PM Oct. 16 12:35PM Oct. 18 2:20PM Oct. 27 9:0QAM Oct. 28 10:25AM Oct. 29 11:35AM Oct. 30 12:20PM Nov. 1 2:40FM Nov. 14 12:20PM Nov. 16 2:25PM Tide cycle: one to two hours after low tide. Parts per million Position Stations 8 9 10 11 12 Surface 226 215 647 Mid-depth 800 640 990 Bottom 1,140 5,780 Surface 546 Mid-depth 1,360 Bottom 15,175 Surface 1,200 1,025 1,300 1,010 1,525 Mid-depth 11,800 2,950 1,850 2,200 2,150 Bottom 15,550 6,300 3,100 8,300 2,100 Surface 280 290 300 250 430 Mid-depth 1,020 350 400 230 440 Bottom 8,200 350 320 1,390 440 Surface 85 25 22 41 77 Mid-depth 106 18 22 46 82 Bottom 280 21 26 64 91 Surface 580 680 760 770 900 Mid-depth 4,500 698 750 1,050 1,050 Bottom 15,300 876 1,020 8,250 1,100 Surface 140 123 95 91 137 Mid-depth 13,450 Bottom 15,500 12,900 11,300 15,650 4,050 Surface 238 350 410 400 570 Mid-depth 12,850 440 460 870 630 Bottom 14,700 1,300 1,700 15,100 640 Surface 850 844 896 920 980 Mid-depth 3,500 1,150 1,270 1,300 1,150 Bottom 13,320 2,300 1,950 5,100 1,250 Surface 11 6 7 9 12 Mid-depth 16 9 7 10 11 Bottom 11,600 10 8 13 13 Surface 180 160 197 179 202 Mid-depth 610 167 212 256 330 Bottom 2,060 165 410 400 370 207 Table 9 (continued) Tide cycles one to two hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1934 Nov. 29 Surface 17 8 8 8 11 12:35PM Mid-depth 45 8 9 10 12 Bottom 12,950 13 11 12 14 Dec. 31 Surface 660 660 700 990 1,010 2:35PM Mid-depth 12,400 5,150 1,200 2,150 1,100 Bottom 14,450 11,700 7,350 14,050 1,800 1935 Jan. 14 2:25PM Surface Mid-depth Bottom Jan. 29 2:00PM Surface Mid-depth Bottom 4 6 4 4 6 6 240 300 860 Feb. 12 Surface 370 250 200 350 370 2:20PM Mid-depth 2,540 790 210 790 850 Bottom 14,550 1,650 430 8,600 1,000 Feb. 25 Surface 161 211 230 210 300 12:00AM Mid-depth 1,470 260 300 265 315 Bottom 14,100 4,300 555 12,350 355 Feb. 27 2:10PM Feb. 28 2:25PM Surface 280 230 270 320 380 Mid-depth 3,150 240 . 285 345 380 Bottom ' 3,000 1,145 360 8,500 400 Surface 13 9 8 15 17 Mid-depth 58 11 9 10 17 Bottom 70 14 7 17 21 Mar. 13 Surface 7 5 7 1:55PM Mid-depth 7 7 6 Bottom 6* 9 9 Mar- 14 Surface 6 5 5 5 7 2:25PM Mid-depth 6 4 5 7 6 Bottom 5 6 6 8 7 Apr- 10 (a) Surface 53 12:00AM Mid-depth 53 Bottom 8,700 208 Table 9 (continued) Tide cycle: one to two hours after low tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Apr. 10 (a) 12:15FM Surface Mid-depth Bottom 47 48 9,850 (a) 12:30EM Surface Mid-depth Bottom 48 49 7,350 (a) 12:4:5PM Surface Mid-depth Bottom 26 70 9,000 (a) 12:15PM Surface Mid-depth Bottom 50 57 14,800 6 7 7 8 9 12 6 7 6 Apr. 11 (a) 2:45PM Surface Mid-depth Bottom 310 490 14,300 (a) 1:00PM Surface Mid-depth Bottom 470 320 14,000 (a) 1:15FM Surface Mid-depth Bottom 300 370 14,400 (a) 1:30PM Surface Mid-depth Bottom 310 500 14,300 Apr. 12 2:15PM Surface Mid-depth Bottom 14 15 13 7 9 8 9 9 11 9 11 10 Apr- 25, 27, May 9, 10, 12, - Samples from all depths - Maximum 6. May 25 11:10AM Surface Mid-depth Bottom 330 560 2,900 380 290 430 635 1,630 1,100 560 149 168 May 26 1:08PM Surface Mid-depth Bottom 186 505 2,850 183 155 235 330 380 690 209 Table 9 (continued) Tide oycle: one to two hours after low tide Parts per million Date Position Stations 8 9 10 11 1935 May 27 (a) Surface 440 1:15AM Mid-depth 700 Bottom 6,100 (a) Surface 360 360 1:08AM Mid-depth 370 390 Bottom 670 1,150 (a) Surface 400 340 390 2:08PM Mid-depth 4,400 510 800 Bottom 14,650 550 1,600 May 28 (a) Surface 400 2:15AM Mid-depth 620 Bottom 1,000 (a) Surface 340 3:00AM Mid-depth 380 Bottom 1,040 (a) Surface 420 360 340 l:45Hi Mid-depth 630 440 630 Bottom 14,550 420 1,350 June 7 Surface 260 280 190 10:38AM Mid-depth 865 300 270 Bottom 14,200 300 1,050 June 10 Surface 360 520 620 1:33FM Mid-depth 9,600 700 900 Bottom 14,600 10,900 13,600 June 11 Surface 73 24 34 1:05PM Mid-depth 1,570 50 61 Bottom 14,100 54 195 June 22 Surface 7 8 5 10:45AM Mid-depth 7 8 8 Bottom 7 9 12 June 25 Surface 9 7 7 1:08PM Mid-depth 7 7 7 Bottom 7 7 13 210 Tablo 9 (continued) Tide cycles ono to two hours after low tido. Parts por million Date Position Stations 8 9 10 11 1935 July 7 Surfaco 900 850 750 10:50AM Mid-depth 1,250 1,550 1,850 Bottom 14,100 6,600 9,850 July 8 Surface 750 540 540 11:18AM Mid-depth 13,150 2,500 2,150 Bottom • 9,000 July 10 (a) Surface 20 8 15 2:05AM Mid-depth 19 10 14 Bottom 24 9 13 (a) Surface 26 8 9 1:05PM Mid-depth 16 7 6 Bottom 17 7 11 July 23 Surface 470 670 730 11:18AM Mid-depth 3,500 760 900 Bottom 14,900 750 2,850 July 25 Surface 850 790 760 1:08PM I lid-depth 900 800 1,050 Bottom 6,100 850 2,000 July 30 Surface 1,300 1,400 1,350 6:08.PM Mid-depth 1,650 2,000 2,100 Bottom 10,700 2,200 6,100 July 31 Surface 1,250 1,250 1,400 7:08AM Mid-depth 2,000 2,200 2,300 Bottom 9,200 2,700 3,850 Aug. 6 Surface 3,750 3,400 3,300 11:20AM Mid-depth 13,900 9,650 9,450 Bottom 15,050 16,450 13,300 Aug. 8 Surface 1,600 1,250 1,150 12:35PM Mid-depth 12,900 2,800 10,500 Bottom 15,100 13,200 14,600 Aug. 22 Surfaco 2,200 2,100 2,200 12:40PM Mid-depth 7,700 3,500 2,600 Bottom 9,700 7,000 9,400 Table 9 (continued) Tido cyolo: ono to two hours aftor low tido. Parts por million Date Position Stations 1935 8 9 10 11 Sept. 2 11:10AM Surface Mid-dopth Bottom 5,000 13,200 14,650 5,000 8,250 11,800 5,300 11,400 13,000 Sept. 3 11:55AM Surface Mid-dopth Bottom 9,400 14,150 13,950 6,800 13,200 14,000 6,300 12,000 13,150 Sept. 5 12:35PM Surfaco Mid-dopth Bottom 3,200 7,750 8,600 3,300 7,050 7,200 3,050 5,150 5,600 Sept.17 1:33PM Surfaco Mid-dopth Bottom 12,900 15,750 15,800 10,100 15,750 15,500 14,400 15,350 15,750 Oct. 5 11:58AM Surfaco Mid-dopth Bottom 550 12,100 15,150 570 1,050 13,100 640 1,100 14,800 Oct. 7 1:53PM Surface Mid-dopth Bottom 4,250 10,300 15,850 3,900 5,500 12,150 3,750 9,000 14,150 Oct. 19 11:48AM Surfaco Mid-dopth Bottom 1,800 6,100 14,950 1,800 6,150 8,350 Oct. 21 1:48PM Surface Mid-dopth Bottom 4,800 10,800 15,600 3,900 8,450 11,300 Nov. 3 (e) 11:30AM Surfaco Mid-dopth Bottom 2,350 3,800 3,250 (a) 12:00AIvI Surface Mid-depth Bottom 2,400 5,300 13,800 Nov. 4 12:25PM Surface Mid-depth Bottom 4,150 12,400 11,850 3,950 5,500 10,700 4,000 7,400 10,550 212 Table 9 (continued) Tide cycle: one to two hours after low tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Nov. 5 1:58PM Surface Mid-depth Bottom 3,800 7,400 11,600 3,100 4,500 5,500 3,200 4,600 6,100 Nov. 17 11:45AM Surface Mid-depth Bottom 3,850 8,900 12,050 2,450 9,050 10,450 1,650 8,600 11,200 Nov. 19 2:00PM Surface Mid-depth Bottom 140 8,800 14,600 450 700 6,900 450 950 6,500 Dec. 2 11:30AM Surface Mid-depth Bottom 9 7 7 8 7 10 8 9 10 Dec. 5 2:05PM Surface Mid-depth Bottom 95 141 199 14 15 18 52 73 149 Dec. 16 11:15AM Surface Mid-depth Bottom 1,090 7,400 9,750 1,190 2,700 6,000 1,070 2,100 7,650 Dec. 17 11:40AM Surface Mid-depth Bottom 650 7,550 14,750 850 850 900 750 ■ 900 1,100 Dec. 19 2:05m Surface Mid-depth Bottom 950 9,000 1,100 1,200 5,950 1,100 2,000 2,050 1,000 1,400 6,800 1,000 1,050 1,150 Dec. 31 11:15AM Surface Mid-depth Bottom 4,800 8,750 9,850 5,000 6,850 9,300 • 4,700 6,800 10,200 4,550 5,350 7,050 1936 Jan. 3 2:15PM Surface Mid-depth Bottom 4,400 5,900 7,300 4,050 5,150 5,350 4,250 5,600 5,950 4,200 5,800 7,800 4,550 4,900 5,100 Mar. 28, 29, all depths - 31, Apr. 24, 25, Maximum 35. 26, 27, 28, 29, May 10, 21, - Samples from 213 Table 9 (continued) Tide cycle: one to two hours after low tide. Parts per million Date Position Stations 1936 8 9 10 11 May 28 1:05PM Surface Mid-depth Bottom 380 740 4,800 4,050 460 420 May 29 1:05AM Surface Mid-depth Bottom 670 750 700 1,050 1,350 3,100 June 3 5:05AM Surface Mid-depth Bottom 690 750 4,650 750 1,350 1,550 June 9 (a) 9:05AM Surface Mid-depth Bottom 2,400 2,700 3,250 2,600 3,100 4,800 (a) 9:05PM Surface Mid-depth Bottom 3,100 2,700 2,800 2,600 3,600 7,150 June 21 (a) 7:39AM Surface Mid-depth Bottom 1,000 850 1,450 750 950 1,100 950 1,050 1,300 (e) 7:56AM Surface Mid-depth Bottom 850 850 2,300 June 22 8:44AM Surface Mid-depth Bottom 950 1,150 3,600 June 23 (a) 9:06AM Surface Mid-depth Bottom 1,650 4,000 1,550 3,000 1,600 2,200 (e) 9:31AM Surface Mid-depth Bottom 650 1,500 3,150 June 24 (a) 9:46AM Surface Mid-depth Bottom 4,000 2,260 7,200 1,750 2,300 8,000 2,100 2,200 6,400 214 Table 9 (continued) Tide cycles one to two hours after low tide. Parts per million Date Position Stations 1936 8 9 10 11 June 24 (e) 10:19AM Surface Mid-depth Bottom 1,900 2,300 7,100 June 25 (a) 10:54AM Surface Mid-depth Bottom 900 5,950 7,200 1,300 1,450 5,000 1,350 1,600 2,200 (e) 11;03AM Surface Mid-depth Bottom 1,100 1,550 3,150 June 26 (a) 11:45AM Surface Mid-depth Bottom 600 700 6,250 700 900 5,200 800 850 1,500 (e) 11:58AM Surface Mid-depth Bottom 650 700 750 June 27 (a) 12:22PM Surface Mid-depth Bottom 800 3,250 8,200 700 1,850 4,950 900 2,100 4,850 (e) 12:49m Surface Mid-depth Bottom 500 4,450 7,900 June 28 (a) 1:16PM Surface Mid-depth Bottom 2,050 2,250 2,300 2,050 2,850 2,200 2,700 3,000 3,200 (e) 11:39PM Surface Mid-depth Bottom 2,100 2,500 2,400 June 29 (a) 2:07PM Surface Mid-depth Bottom 4,000 4,000 4,100 3,900 3,900 4,500 (e) 2:28PM Surface Mid-depth Bottom 2,500 4,150 4,350 215 Table 9 (continued) Tide cycle: one to two hours after low tide. Parts per million Date Position Stations 1936 8 9 10 11 June 30 (a) 2:48PM Surface Mid-depth Bottom 4,100 7,900 5,200 7,650 5,650 6,900 (e) 3:16PM Surface Mid-depth Bottom 3,500 4,500 7,200 July 1 (a) 3:33AM Surface Mid-depth Bottom 3,750 5,500 6,300 4,150 5,500 6,850 3,900 4,500 6,150 (e) 3:55AM Surface Mid-depth Bottom 4,100 5,450 6,150 July 3 (a) 5:08AM Surface Mid-depth Bottom 1,750 2,000 4,900 1,200 3,400 3,700 1,950 2, 900 2,900 (e) 5:23AM Surface Mid-depth Bottom 1,200 2,350 4,350 July 4 (a) 5:46AM Surface Mid-depth Bottom 2,000 5,000 2,200 3,600 2,700 3,300 (e) 6:05AM Surface Mid-depth Bottom 1,400 2,400 3,800 July 5 6:46AM Surface Mid-depth Bottom 1,800 3,900 4,700 July 6 7:28AM Surface Mid-depth Bottom 3,300 4,250 5,950 July 7 8:11AM Surface Mid-depth Bottom 3,750 5,600 6,450 216 Table 9 (continued) Tide cycle: one to two hours after low tide. Parts per million Date Position Stations 1936 8 9 10 11 July 8 8:56AM Surface Mid-depth Bottom 2,300 3,100 4,300 July 9 9:44AM Surface Mid-depth Bottom 1,750 3,600 4,500 July 10 10:07AM Surface Mid-depth Bottom 2,400 2,900 3,450 July 11 (a) 11:12AM Surface Mid-depth Bottom 3,400 4,300 3,700 3,500 3,100 3,600 3,700 4,000 4,450 (e) 11:33AM Surface Mid-depth Bottom 1,950 3,050 2,950 July 12 (a) 12:07PM Surface Mid-depth Bottom 3,000 3,150 3,200 3,350 3,500 3,400 3,350 3,500 3,800 (e) 12:32PM Surface Mid-depth Bottom 2,300 3,050 2,950 July 13 1:33PM Surface Mid-depth Bottom 3,250 3,150 8,950 July 14 (a) 2:04PM Surface Mid-depth Bottom 2,000 2,200 3,300 2,350 2,550 3,050 2,400 2,850 3,050 (e) 2:35PM Surface Mid-depth Bottom 2,250 2,250 2,700 July 15 (a) 2:53PM Surface Mid-depth Bottom 1,500 1,450 1,550 1,100 1,800 1,700 1,700 2,000 1,850 217 Table 9 (continued) Tide cycle: one to two hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1936 July 15 (e) Surface 1 150 3:35PM Mid-depth 2 100 Bottom 1 450 July 17 (a) Surface 1,350 1 450 1,950 4:49PM Mid-depth 1,700 2 000 2,100 Bottom 5,950 3 900 4,350 (e) Surface 1 300 5:16PM Mid-depth 1 700 Bottom 2 100 July 19 Surface 3 900 6:46AM Mid-depth 4 800 Bottom 3 850 July 21 (a) Surface 3,600 3 700 3,950 8:09AM Mid-depth 3,750 3 750 4,150 Bottom 3,650 3 450 4,150 (e) Surface 3 300 8:24AM Mid-depth 3 650 Bottom 3 800 July 23 (a) Surface 1,800 2 300 2,100 9:33AM Mid-depth 2,500 2 000 2,700 Bottom 2,450 2 400 2,800 (e) Surface 1 850 9:52AM Mid-depth 3 000 Bottom 3 050 July 25 (a) Surface 1,300 1 100 1,600 11:10AM Mid-depth 6,600 1 950 2,450 Bottom 7,600 6 850 6,350 (e) Surface 1 120 11:24AM Mid-depth 1 450 Bottom 6 450 July 29 (a) Surface 3,900 3 650 3,450 2:24PM Mid-depth 4,200 4 750 5,560 Bottom 7,650 8 650 9,150 218 Table 9 (continued) Tide oycles one to two hours after low tide. Parts per million Date Position Stations 1936 8 9 10 11 July 29 (e) 2:48m Surface Mid-depth Bottom 3,500 4,700 7,800 July 31 (a) 4:00PM Surface Mid-depth Bottom 1,700 2,900 17,400 2,000 3,200 6,200 2,500 3,200 5,100 (e) 4:26PM Surface Mid-depth Bottom 1,900 3,000 6,150 Aug. 2 5:34AM Surface Mid-depth Bottom 2,600 3,000 4,100 2,300 3,100 3,450 2,900 3,150 3,750 Aug. 4 (a) 6:54AM Surface Mid-depth Bottom 4,500 6,750 7,350 4,550 6,450 7,950 4,700 5,400 6,750 (e) 7:1QAM Surface Mid-depth Bottom 4,450 6,200 7,050 Aug. 6 (a) 8:14AM Surface Mid-depth Bottom 2,600 4,600 6,350 2,600 4,150 5,700 2,050 4,050 5,500 (e) 8:31AM Surface Mid-depth Bottom 2,550 3,900 5,500 Aug. 8 (a) 9:48AM Surface Mid-depth Bottom 800 4,400 4,700 1,300 3,300 3,900 1,200 2,000 2,900 (e) 10:13AM Surface Mid-depth Bottom 900 4,200 3,850 Aug. 10 (a) 11:42AM Surface Mid-depth Bottom 4,150 5,950 4,000 6,050 4,500 6,100 219 Table 9 (continued.) Tide cyole: one to two hours after low tide. Parts per million Date Position Stations 1936 8 9 10 11 Aug. 10 (e) 12:13PM Surface Mid-depth Bottom 3,200 3,850 5,550 Aug. 12 (a) 1:47PM Surface Mid-depth Bottom 3,900 3,700 3,700 4,150 4,250 4,400 (e) 2:24PM Surface Mid-depth Bottom 3,000 4,000 4,600 Aug. 14 (a) 4:07PM Surface Mid-depth Bottom 2,700 3,600 3,750 3,300 4,450 5,950 3,300 4,250 4,600 (e) 4:21PM Surface Mid-depth Bottom 2,900 4,100 3,800 Aug. 18 (a) 6:04AM Surface Mid-depth Bottom 5,450 5,400 5,500 5,500 5,600 5,600 5,600 6,000 6,100 (e) 7:03AM Surface Mid-depth Bottom 5,100 5,700 5,700 Aug. 20 (a) 8:02AM Surface Mid-depth Bottom 3,400 3,750 4,400 3,300 4,000 4,000 3,700 4,700 4,900 (e) 8:22AM Surface Mid-depth Bottom 3,250 4,000 4,000 Aug. 24 (a) 11:12AM Surface Mid-depth Bottom 4,300 10,550 14,400 4,200 7,850 12,350 4,400 7,250 14,000 (e) 11:30AM Surface Mid-depth Bottom 4,550 7,600 14,500 220 Table 9 (continued) Tide cycle: Date Position 1936 8 Aug. 30 4:47PM Surfaee Mid-depth Bottom Sept. 1 (a) 5:44AM Surface Mid-depth Bottom 2,000 4,050 5,200 (e) 5<§7AM Surface Mid-depth Bottom Sept. 3 (a) 6:58AM Surface Mid-depth Bottom 1,900 2,000 4,700 (e) 7:28AM Surface Mid-depth Bottom Sept. 5 (a) 8:38AM Surface Mid-depth Bottom 750 800 15,500 (a) 9:08AM Surface Mid-depth Bottom Sept. 6 (a) 9:13AM Surface Mid-depth Bottom 1,300 1,600 3,300 (e) 9:52AM Surface Mid-depth Bottom Sept. 8 (a) 11:31AM Surface Mid-depth Bottom 1,300 2,300 13,900 (e) 12:08PM Surface Mid-depth Bottom one to two hours after low tide. Parts per million Stations 9 10 11 12 2,250 2,600 5,300 1,950 2,250 2,500 2,500 3,800 3,900 1,800 2,350 5,700 1,850 2,250 2,250 2,450 3,600 3,350 1,500 3,400 4,500 600 800 850 1,250 4,500 1,300 550 1,150 2,250 1,400 1,400 1,600 1,650 1,750 2,800 1,000 1,100 3,900 1,400 1,900 1,400 2,350 11,050 6,400 1,350 2,4-50 7,000 221 Tablo 9 (continued) Tide cyclo: ono to two hours aftor low tido. Parts per million Date Position Stations 1936 8 9 10 11 Sept.10 (a) 1:56PM Surface Mid-depth Bottom 2,600 6,500 15,400 2,000 3,350 9,000 2,700 3,600 9,800 (e) 2:13PM Surface Mid-depth Bottom 2,300 4,000 13,600 Sept.17 (a) 7:04AM Surface Mid-depth Bottom 1,000 2,100 5,300 1,450 1,600 3,900 1,400 1,800 2,300 (e) 7:10AM Surface Mid-depth Bottom 1,050 1,450 2,850 Sept.21 (a) 9;28AM Surface Mid-depth Bottom 2,000 4,800 8,000 1,400 6,800 8,200 1,800 4,400 7,500 (e) 9:52AM Surface Mid-depth Bottom 1,900 9,950 8,250 1937 Mar. 20, Apr- 7, 15, 18, 19, 29, May 29, 30, - Samples from all depths - Maximum 11. June 11 (a) Surface 19 8:10AM Mid-depth 19 Bottom 19 (a) Surface 19 8:20AM Mid-depth 23 Bottom 33 (a) Surface 19 8:30AM Mid-depth 29 Bottom 85 June 12 (a) Surface 5 21 23 9:18AM Mid-depth 69 17 31 Bottom 79 19 39 222 Table 9 (continued) Tide cycle: one to two hours after low tide# Parts per million Date Position Stations 1937 8 9 10 11 June 24 (a) 6:28AM Surface Mid-depth Bottom 10 11 9 8 7 7 9 9 9 (e) 6:4QAM Surface Mid-depth Bottom 5 7 5 July 1 (a) 11:20AM Surface Mid-depth Bottom 220 240 280 (a) 11:30AM Surface Mid-depth Bottom 240 240 260 (a) 11:40AM Surface Mid-depth Bottom 200 200 240 (a) 11:50AM Surface Mid-depth Bottom 200 220 1,100 (a) 12:00AM Surface Mid-depth Bottom 200 220 1,120 (a) 12:10EM Surface Mid-depth Bottom 200 1,600 3,100 July 2 (a) 12:09PM Surface Mid-depth Bottom 140 200 220 39 114 200 49 125 220 (e) 12:26PM Surface Mid-depth Bottom 63 67 220 July 8 (a) 5:49AM Surface Mid-depth Bottom 280 280 360 200 240 300 200 280 280 223 Table 9 (continued) Tide cycle: one to two hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 8 (e) Surface 145 5:59AM Mid-depth 200 Bottom 260 July 12 (a) Surface 1,800 9:00AM Mid-depth 1,900 Bottom 2,100 (a) Surface 1,200 9:15AM Mid-depth 2,400 Bottom 3,700 (a) Surface 1,500 9:3QAM Mid-depth 2,300 Bottom 3,300 (a) Surface 1,100 9:45AM Mid-depth 2,000 Bottom 4,100 July 14 (a) Surface 750 10:45AM Mid-depth 650 Bottom 700 (a) Surface 900 11:00AM Mid-depth 1,300 Bottom 1,000 (a) Surface 260 11:15AM Mid-depth 2,100 Bottom 1,000 (a) Surface 220 11:30AM Mid-depth 500 Bottom 2,300 July 15 (e) Surface 220 11:45AM Mid-depth 300 Bottom 4,200 July 20 (a) Surface 1,450 3:45PM Mid-depth 6,600 Bottom 6,900 224 Table 9 (continued) ^Tide cycle: one to two hours after lo\ Parts per million Date Position Stations 8 5 10 11 1937 July 20 (a) Surface 1 250 4:00PM Mid-depth 8 500 Bottom 9 500 (a) Surface 1 150 4:15PM Mid-depth 7 800 Bottom 8 300 (a) Surface 1 200 4:30PM Mid-depth 7 000 Bottom 8 600 July 24 (a) Surface 1,400 1 500 2,100 6:38AM Mid-depth 1,700 2 400 2,100 Bottom 2,700 2 800 3,700 (e) Surface 1 200 6:48AM Mid-depth 1 800 Bottom 2 500 July 26 (a) Surface 2 850 8:00AM Mid-depth 6 650 Bottom 7 550 (a) Surface 2 750 8:15AM Mid-depth 7 800 Bottom 7 800 (a) Surface 2 550 8:30AM Mid-depth 8 250 Bottom 8 100 (a) Surface 2 250 8:45AM Mid-depth 7 250 Bottom 9 400 July 27 (a) Surface 2 400 8:30AM Mid-depth 3 100 Bottom 4 100 (a) Surface 2 300 8:45AM Mid-depth 3 800 Bottom 4 000 225 Table 9 (continued) Tide cyole: one to two hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 27 (a) Surface 1,900 9:00AM Mid-depth 4,200 Bottom 4,800 (a) Surface 1,900 9:15AM Mid-depth 4,100 Bottom 4,600 July 29 (a) Surface 840 10:00AM Mid-depth 2,400 Bottom 3,600 (a) Surface 740 10:15AM Mid-depth 2,100 Bottom 4,800 (a) Surface 700 10:30AM Mid-depth 3,500 Bottom 6,500 (a) Surface 720 10:45AM Mid-depth 2,900 Bottom 8,400 (a) Surface 1,950 10:45PM Mid-depth 2,550 Bottom 4,400 (a) Surface 1,900 11:00PM Mid-depth 5,250 Bottom 4,600 (a) Surface 1,650 11:15PM Mid-depth 3,550 Bottom 5,100 (a) Surface 1,700 11:30PM Mid-depth 4,800 Bottom 5,200 July 31 (a) Surface 1,800 11:45AM Mid-depth 11,600 Bottom 14,100 226 Table 9 (continued) Tide cycle: one to two hours after low tide. Parts per million Date ' Position Stations 8 9 10 11 12 1937 July 31 (a) Surface 1 800 12:00AM Mid-depth 12 600 Bottom 13 800 (a) Surface 2 000 12:15PM Mid-depth 13 900 Bottom 14 100 (a) Surface 2 200 12:30PM Mid-depth 9 600 Bottom 14 200 Aug. 1 (a) Surface 3 000 1:00PM Mid-depth 7 000 Bottom 9 700 (a) Surface 2 900 1:15PM Mid-depth 12 700 Bottom 13 300 (a) Surface 3 100 1:30PM Mid-depth 12 300 Bottom 13 700 (a) Surface 3 300 1:45PM Mid-depth 10 100 Bottom 13 600 Aug. 2 (a) Surface 2 700 2:00PM Mid-depth 4 900 Bottom 7 600 (a) Surface 2 800 2:15PM Mid-depth 7 600 Bottom 8 300 (a) Surface 3 000 2:30PM Mid-depth 4 350 Bottom 7 200 (a) Surface 2 100 2:45PM Mid-depth 5 650 Bottom 9 900 227 Table 9 (continued) Tide cycle: one to two hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 3 (a) Surface 2,000 3:00PM Mid-depth 5,500 Bottom 5,200 (a) Surface 5,600 3:15PM Mid-depth 5,200 Bottom 7,300 (a) Surface 1,400 3:30PM Mid-depth 4,500 Bottom 7,700 (a) Surface 1,300 3:45PM Mid-depth 7,800 Bottom 9,000 Aug. 5 (a) Surface 1,150 4:45FM Mid-depth 4,100 Bottom 4,500 (a) Surface 1,100 5:00PM Mid-depth 3,650 Bottom 4,600 (a) Surface 1,300 5:15PM Mid-depth 6,400 Bottom 6,200 (a) Surface 850 5:30PM Mid-depth 4,700 Bottom 6,700 228 Tafcle 10 Date 1934 Oct. 15 12:15PM Oct. 17 2:15PM Oct. 27 (a) 9:55AM (a) 10:5QAM Oct. 28 11:20AM Oct. 31 2:10PM Nov. 13 12:15PM Nov. 15 2:25PM Nov. 27 12:05PM Nov. 28 12:20PM Nov. 30 2:25PM Tide oyole: two to three hours after low tide. Parts per million Position Stations 8 9 10 11 12 Surface 2,250 2,475 2,375 1,575 1,575 Mi d-depth 11,650 7,150 6,100 6,350 2,700 Bottom 14,850 11,250 8,100 14,150 3,600 Surface 400 320 390 330 400 Mid-depth 5,750 1,050 530 750 440 Bottom 10,000 3,300 1,200 4,200 450 Surface 55 30 22 37 68 Mid-depth 200 22 21 36 69 Bottom 3,200 141 21 45 71 Surface 215 90 61 53 62 Mid-depth 1,680 141 64 420 61 Bottom 5,250 1,690 810 5,250 62 Surface 600 600 640 620 600 Mid-depth Bottom 14,750 5,200 1,100 12,000 680 Surface 500 370 494 620 570 Mid-depth 9,250 1,470 1,850 5,050 860 Bottom 15,050 12,900 8,000 15,100 1,280 Surface 9 10 7 10 11 Mid-depth 10 10 9 8 13 Bottom 1,425 15 9 9 13 Surface 340 300 310 210 240 Mid-depth 1,280 820 690 820 280 Bottom 10,300 1,550 900 3,700 330 Surface 20 13 15 19 31 Mid-depth 6,050 102 35 23 25 Bottom 14,500 6,300 1,300 11,800 27 Surface 21 8 7 7 8 Mid-depth 204 8 8 11 10 Bottom 13,650 12 15 12 14 Surface 34 14 10 15 97 Mid-depth 157 17 11 23 88 Bottom 11,200 23 30 199 114 229 Table 10 (continued) Date Position Tide cycle: two to three hours after low tide Parts per million Stations 8 9 10 11 12 1934 Dec. 13 Surface 252 278 250 260 315 12:45PM Mid-depth 3,450 445 950 850 350 Bottom 10,900 4,050 950 855 610 Dec. 14 Surface 136 140 139 165 162 2:25PM Mid-depth 159 2,000 1,500 1,450 950 Bottom 14,850 7,400 5,000 12,950 2,300 Ded. 27 Surface 14 10 11 13 45 11:50AM Mid-depth 43 13 9 15 42 Bottom 41 Dec. 28 Surface 860 680 660 600 630 12:40PM Mid-depth 11,600 7,600 3,450 6,300 640 Bottom 13,550 11,150 7,900 14,000 5,100 1935 Jan. 11 Surface 8 7 5 6 7 12:25PM Mid-depth 5 6 Bottom 6 7 Jan. 28 Surface 17 2:20PM Mid-depth 35 Bottom 6,300 Feb. 11 Surface 360 163 190 270 270 2:25PM Mid-depth 4,950 2,170 350 670 610 Bottom 12,550 4,550 470 8,250 4, 000 Mar. 10, 11, 12, 26, 27, 28, 29, - Samples from all depth s - Maximum 10. Apr. 9 Surface 480 300 250 220 12:15FM Mid-depth 3,600 1,200 720 220 Bottom 14,950 3,700 6,000 230 Apr. 10 (a) Surface 32 1:00PM Mid-depth 720 Bottom 14,300 (a) Surface 41 1:15PM Mid-depth 730 Bottom 9,200 230 Table 10 (continued) Tide oycle: two to three hours after low tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Apr- 10 (a) 1:30PM Surface Mid-depth Bottom 63 940 6,400 Apr- 11 (a) 1:45PM Surface Mid-depth Bottom 300 510 14,350 (a) 2:00PM Surface Mid-depth Bottom 290 450 14,450 (a) 2:15PM Surface Mid-depth Bottom 280 500 10,850 (a) 2:30PM Surface Mid-depth Bottom 240 2,600 12,000 (a) 2;20PM Surface Mid-depth Bottom 242 3,600 14,700 182 230 1,960 231 270 7,400 244 250 260 Apr. 24, 26, May 8, 11, - Samples from all depths - Maximum 8. May 24 11:20AM Surface Mid-depth Bottom 200 980 2,080 200 240 480 460 225 405 200 170 250 May 26 2:08PM Surface Mid-depth Bottom 250 5,500 6,150 260 390 1,000 180 720 3,850 May 27 (a) 2:15PM Surface Mid-depth Bottom 330 520 4,550 (a) 3:08AM Surface Mid-depth Bottom 370 420 2,200 380 400 4,600 (a) 3:08PM Surface Mid-depth Bottom 510 5,500 14,200 450 5,050 810 430 2,000 5,100 231 Table 10 (continued) Tide cycle: two to three hours after low tide. Parts per million Date Position Stations 8 9 10 11 1935 May 28 (a) Surface 280 300 3:08AM Mid-depth 700 310 Bottom 1,140 500 (a) Surface 320 4:00AM Mid-depth 400 Bottom 1,000 June 6 Surface 200 200 150 10:53AM Mid-depth 360 220 Bottom 9,550 1,350 1,800 June 8 Surface 280 300 270 12:58HS Mid-depth 9,450 4,600 2,050 Bottom 14,650 6,250 8,800 June 9 Surface 310 200 420 1:05PM Mid-depth 9,200 430 1,250 Bottom 13,800 9,400 12,950 June 21 Surface 8 6 8 10:38AM Mid-depth 7 8 11 Bottom 9 11 16 June 23 Surface 9 9 10 12:55PM Mid-depth 9 8 14 Bottom 12 13 17 June 24 Surface 7 7 7 1:08PM Mid-depth 7 8 8 Bottom 8 11 10 July 3 Surface 520 440 390 10:38AM Mid-depth 3,250 1,040 1,010 Bottom 4,300 1,500 3,000 July 5 Surface 430 400 400 10:48AM Mid-depth 5,550 2,700 1,900 Bottom 11,950 495 6,300 July 6 (a) Surface 3,550 4,050 11:35AM Mid-depth 5,450 3,300 Bottom 5,900 4,900 232 Table 10 (continued) Tide cycle: two to three after low tide. Parts per million Date Position Stations 8 9 10 11 1935 July 6 (a) Surface 670 570 610 10:58AM Mid-depth 11,400 4,500 2,250 Bottom 14,150 7,100 9,900 July 9 Surface 24 18 17 1:03PM Mid-depth 65 21 25 Bottom 5,700 16 33 July 10 (a) Surface 18 6 10 2:05PM Mid-depth 8 6 8 Bottom 12 8 11 (a) Surface 9 9 12 3:05PM Mid-depth 11 11 13 Bottom 12 12 19 July 22 Surface 360 240 340 11:33AM Mid-depth 9,100 2,400 1,200 Bottom 14,950 6,100 10,450 July 24 Surface 290 340 310 1:38PM Mid-depth 950 530 700 Bottom 14,450 5,300 10,550 July 30 Surface 1,100 1,000 730 7:08PM Mid-depth 4,800 6,150 1,500 Bottom 10,350 6,650 7,150 July 31 Surface 2,150 1,500 1,600 8:08AM Mid-depth 3,000 4,100 3,600 Bottom 6,100 4,200 5,950 Aug. 4 Surface 1,200 1,200 1,200 10:50AM Mid-depth 7,000 4,400 2,700 Bottom 14,500 8,200 13,200 Aug. 5 Surface 3,700 2,800 2,850 10:55AM Mid-depth 11,750 13,800 8,600 Bottom 15,000 11,200 14,400 Aug. 19 Surface 2,300 2,700 1,950 11:00AM Mid-depth 7,150 6,350 9,450 Bottom 15,200 7,400 10,050 233 Table 10 (continued) Tide cycles two to three hours after low tide. Parts per million Date Position Stations 8 9 10 11 1935 Aug. 20 Surface 2,150 2,200 2,000 11:28AM Mid-depth 12,000 8,200 6,300 Bottom 15,350 11,100 11,600 Aug. 21 Surface 2,300 2,300 2,500 12:45PM Mid-depth 13,800 11,100 7,000 Bottom 14,450 13,000 12,200 Sept. 1 Surface 5,700 4,600 4,000 10:55AM Mid-depth 11,700 11,750 11,850 Bottom 11,850 11,900 11,900 Sept. 4 Surface 8,700 8,700 8,200 12:53FM Mid-depth 14,300 13,300 13,400 Bottom 14,500 13,500 13,700 Sept.15 Surface 4,500 4,400 4,450 10:55AM Mid-depth 4,450 4,450 4,400 Bottom 4,450 4,700 4,400 Sept.18 Surface 5,200 5,100 4,700 1:48PM Mid-depth 12,700 11,000 11,850 Bottom 12,850 12,400 13,100 Oct. 4 Surface 900 900 1,200 11:53AM Mid-depth 10,300 8,200 6,300 Bottom 14,900 8,100 12,400 Oct. 6 Surface 3,100 3,600 1,600 1:53PM Mid-depth 12,950 5,050 5,000 Bottom 15,500 9,600 15,100 Oct. 18 Surface 1,600 1,300 1,250 11:53AM Mid-depth 13,950 10,600 13,950 Bottom 14,600 11,600 14,250 Oct. 19 Surface 1,750 1,900 1:48PM Mid-depth 6,150 8,750 Bottom 9,700 12,750 Oct. 20 Surface 2,050 2,000 2,150 1:58PM Mid-depth 5,800 3,700 2,700 Bottom 14,000 7,900 9,200 234 Table 10 (continued) Tide oycle: two to throo hours after low tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Nov. 2 12:00AM Surface Mid-depth Bottom 2,750 7,300 11,100 Nov, 3 12:10PM Surface Mid-depth Bottom 3,100 10,650 9,450 3,650 5,550 8,850 Nov. 4 1:40FM Surface Mid-depth Bottom 6,200 11,200 12,800 5,850 8,200 9,450 4,200 7,000 11,650 Nov. 16 11:55AM Surface Mid-depth Bottom 1,100 9,650 9,250 750 4,950 4,850 650 2,500 5,850 Nov. 17 12:55PM Surface Mid- dopth Bottom 3,750 10,200 12,750 2,700 9,750 10,250 2,050 10,300 11,400 Nov. 18 1:48PM Surface Mid-depth Bottom 230 1,000 1,150 150 450 470 170 190 200 Deo. 1 11:20AM Surface Mid-depth Bottom 11 13 15 9 9 10 9 9 10 Dec. 4 2:05PM Surface Mid-depth Bottom 9 14 16 6 8 12 9 9 11 Dec. 15 11:05AM Surface Mid-depth Bottom 390 8,500 7,950 400 2,700 6,100 550 1,750 6,400 Dec. 18 2:15PM Surface Mid-depth Bottom 750 7,550 10,400 750 5,650 7,400 2,250 5,350 5,300 1,000 4,550 8,050 1,000 1,200 1,600 1936 Jan. 2 2:35PM Surface Mid-depth Bottom 6,550 10,500 10,750 4,050 4,200 2,300 235 Table 10 (continued) Date 1936 Tide cycles two to three hours after low tide. Parts per million Position Stations 8 9 10 11 12 Jan. 30 12:25PM Surface Mid-depth Bottom May 2 8 Surface 1,910 1,050 2:05PM Mid-depth 4,150 2,750 Bottom 4,750 3,150 May 29 Surface 920 540 2:05AM Mid-depth 2,700 600 Bottom 4,800 600 June 3 (a) Surface 1,000 400 6:05AM Mid-depth 2,750 2,150 Bottom 3,850 4,100 (a) Surface 4,750 650 6:05PM Mid-depth 6,750 7,500 Bottom 6,700 5,300 June 9 (a) Surface 1,500 1,900 10:05AM Mid-depth 2,000 2,200 Bottom 7,000 5,500 (a) Surface 1,850 1,750 10:05PM Mid-depth 3,550 7,250 Bottom 8,500 8,500 570 650 730 Mar. 27, 28, 29, 30, Apr, 24, 25, 26, 27, 28, May 6, 7, 8, 9, 11, 21, Samples from all depths - Maximum 10. 1937 Mar. 17 (a) Surface 9 13 13 47 47 11:20AM Mid-depth 13 15 13 41 45 Bottom 25 15 19 39 43 Mar. 19 (a) Surface 13 17 15 25 23 1:05PM Mid-depth 19 19 17 21 25 Bottom 21 19 19 25 27 Apr. 14, 27, 28, 29, May 13, 14, 28, - Samples from all depths - Maximum 7. 236 Table 10 (continued) Tide oyoles two to throo hours after low tide. Parts per million Date Position Stations 1937 8 9 10 11 June 11 (a) 8:4QAM Surfaoe Mid-depth Bottom 18 24 68 (a) 8:50AM Surface Mid-depth Bottom 17 30 43 (a) 9:00AM Surface Mid-depth Bottom 36 56 52 (a) 9:10AM Surface Mid-depth Bottom 20 62 97 (a) 9:20AM Surface Mid-depth Bottom 54 68 89 (a) 9:30AM Surface Mid-depth Bottom 56 85 65 June 25 (a) 8:23AM Surface Mid-depth Bottom 7 7 3 5 7 9 5 7 9 July 1 (a) 12:20PM Surface Mid-depth Bottom 200 460 2,900 (a) 12:30PM Surface Mid-depth Bottom 200 1,820 3,700 (a) 12:40PM Surface Mid-depth Bottom 200 1,880 4,300 (a) 12:50FM Surface Mid-depth Bottom 700 4,000 5,200 237 Tablo 10 (continued) Tide oyolo: two to throe hours aftor low tide. Parts per million Date Position Stations 1937 8 9 10 11 July 1 (a) 1:00PM Surface Mid-depth Bottom 240 3,300 4,400 (a) 1:10PM Surface Mid-depth Bottom 240 2,900 3,400 July 9 (a) 8:14AM Surface Mid-depth Bottom 1,600 2,120 2,250 1,050 1,560 1,700 680 910 1,490 July 12 (a) 10:00AM Surface Mid-depth Bottom 1,400 2,100 1,700 (a) 10:15AM Surface Mid-depth Bottom 3,100 4,700 7,200 (a) 10:30AM Surface Mid-depth Bottom 4,000 6,300 6,400 (a) 10:45AM Surface Mid-depth Bottom 2,900 3,900 5,100 July 14 (a) 11:45AM Surface Mid-depth Bottom 440 3,900 4,000 (a) 12:00AM Surface Mid-depth Bottom 320 5,000 4,700 (a) 12:15EM Surface Mid-depth Bottom 460 3,100 4,200 12 (a) 12:30FM Surface Mid-depth Bottom 340 3,500 2,800 238 Tablo 10 (continued) Tide oyolo: two to throo hours after low tido. Parts por million Date Position Stations 8 9 10 11 12 1937 July 20 (a) Surface 1,200 4:45PM Mid-depth 7,300 Bottom 7,000 (a) Surface 1,250 5:00PM Mid-depth 9,300 Bottom 8,200 (a) Surface 1,500 5:15PM Mid-depth 7,900 Bottom 8,500 (a) Surface 1,700 5:30PM Mid-depth 8,300 Bottom 8,800 July 26 (a) Surface 2,800 9:00AM Mid-depth 6,650 Bottom 8,550 (a) Surface 2,800 9:15AM Mid-depth 7,100 Bottom 8,000 (a) Surface 3,000 9:30AM Mid-depth 3,700 Bottom 6,800 (a) Surfaco 3,650 9:45AM Mid-dopth 4,550 Bottom 6,600 (a) Surfaco 4,150 10:OQAM Mid-depth 6,300 Bottom 6,800 July 27 (a) Surfaco 1,500 9:30AM Mid-dopth 6,100 Bottom 6,200 (a) Surface 5,000 9:45AM Mid-depth 5,600 Bottom 7,000 239 Table 10 (continued) Tido oyclo: two to throo hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 27 (a) Surface 1,900 10:00AM Mid-depth 5,800 Bottom 5,900 (a) Surface 5,200 10:15AM Mid-depth 5,100 Bottom 6,900 July 29 (a) Surface 1,130 11:00AM Mid-depth 5,000 Bottom 8,900 (a) Surface 1,720 11:15AM Mid-depth 3,900 Bottom 9,200 (a) Surface 1,640 11:30AM Mid-depth 6,300 Bottom 7,500 (a) Surface 1,830 11:45AM Mid-depth 2,500 Bottom 6,400 (a) Surface 1,450 11:45PM Mid-depth 6,050 Bottom 6,700 (a) Surface 2,000 12:00PM Mid-depth 6,800 Bottom 6,700 July 30 Surface 1,850 12:15AM Mid-depth 5,400 Bottom 5,200 July 31 (a) Surface 2,000 12:45PM Mid-depth 8,300 Bottom 14,000 (a); Surface 1,800 1:00PM Mid-depth 8,500 Bottom 13,900 240 Table 10 (continued) Tide cycle: two to throe hours after low tide. Parte per million Date Position Stations 8 9 10 11 12 1937 July 31 (a) Surface 3,200 1:15PM Mid-depth 9,100 Bottom 11,700 (a) Surface 3,300 1:30PM Mid-depth 8,200 Bottom 9,500 (a) Surface 3,500 1:45PM Mid-depth 8,500 Bottom 9,600 Aug. 1 (a) Surface 4,100 2:00PM Mid-depth 9,100 Bottom 13,300 (a) Surface 3,400 2j15PM Mid-depth 10,800 Bottom 11,500 (a) Surface 3,300 2:30PM Mid-depth 9,000 Bottom 9,300 (a) Surface 4,000 2:45PM Mid-depth 8,800 Bottom 9,800 Aug. 2 (a) Surface 1,900 3:00PM Mid-depth 4,700 Bottom 5,900 (a) Surface 2,700 3:15PM Mid-depth 6,200 Bottom 8,300 (a) Surface 1,900 3:30PM Mid-depth 6,000 Bottom 8,300 (a) Surface 4,000 3:45PM Mid-depth 5,000 Bottom 7,800 241 Table 10 (continued) Tide cyoloj two to three hours after low tido, Parts per million Date Position Stations 8 9 10 11 12 193? Aug. 3 (a) Surface 1,400 4:00PM Mid-dopth 6,100 Bottom 9,750 (a) Surface 1,900 4:15PM Mid-depth 5,700 Bottom 7,450 (a) Surface 1,900 4:30EM Mid-depth 6,400 Bottom 7,200 (a) Surface 2,000 4:45PM Mid-depth 6,250 Bottom 6,800 Aug. 5 (a) Surface 1,300 5:45PM Mid-depth 6,700 Bottom 6,800 (a) Surface 1,100 6:00PM Mid-depth 5,850 Bottom 6,800 (a) Surface 1,900 6:15PM Mid-depth 5,850 Bottom 6,400 (a) Surface 2,400 6:30PM Mid-depth 5,250 Bottom 6,300 242 Table 11 Tide cyoles three to four hours i after low tide Parts per million Date Position Stations 8 9 10 11 12 1934 Oct. 16 Surface 2,650 1,250 1,950 1,425 1,200 2s30PM Mid-depth 10,100 4,000 3,550 6,050 2,000 Bottom 13,200 8,050 7,050 13,750 5,900 Oct. 27 Surface 440 455 470 420 380 11:55AM Mid-depth 5,650 760 880 760 Bottom 7,350 4,250 2,400 5,150 1,070 Oct. 29 Surface 2,550 2,020 1,950 2,200 1,250 1:30PM Mid-depth 2,600 9,100 13,800 3,000 Bottom 15,250 13,500 13,550 15,000 9,750 Oct. 30 Surface 600 610 580 600 690 2:25PM Mid-depth 13,450 7,280 5,750 10,450 950 Bottom 14,900 12,280 10,900 15,050 8,150 Nov. 12 Surface 27 20 13 11 16 12:15PM Mid-depth 3,300 339 27 25 15 Bottom 1,800 900 237 3,650 19 Nov. 14 Surface 230 96 25 17 14 2:20PM Mid-depth 4,950 1,800 61 105 15 Bottom 8,400 2,800 1,950 7,400 16 Nov. 26 Surface 670 345 520 225 165 12:OOAM Mid-depth 9,050 2,350 1,550 10,550 175 Bottom 15,100 6,850 3,450 1,550 390 Nov. 28 Surface 33 17 14 11 16 2:20PM Mid-depth 3,900 276 15 16 10 Bottom 13,350 4,350 1,150 8,050 14 Nov. 29 Surface 10 9 8 8 11 2:20PM Mid-depth 1,470 74 8 12 12 Bottom 13,600 1,950 18 7,000 14 Dec. 12 Surface 2,680 1,740 1,650 1,700 1,400 12:25PM Mid-depth 8,350 4,000 4,350 5,950 1,650 Bottom 15,850 11,450 8,750 15,050 6,300 Dec. 13 Surface 1,100 425 440 400 400 2:25PM Mid-depth 6,700 4,600 1,900 1,750 460 Bottom 7,250 7,100 4,050 9,650 900 243 Table 11 (oontinued) Tide oyole: throe to four hours after low tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Jan. 10 12:25PM Surface Mid-depth Bottom 11 11 10 8 10 10 9 9 10 13 13 42 Jan. 25 12:20PM Surface Mid-depth Bottom / 129 210 1,640 Feb. 8 12:15PM Surface Mid-depth Bottom 200 3,100 4,650 220 1,400 2,250 180 251 300 133 190 2,400 126 200 1,700 Feb* 25 2:10PM Surface Mid-depth Bottom 262 10,150 14,100 290 3,350 6,900 250 2,140 4,600 310 3,650 12,150 320 365 2,500 Ffeb. 26 2:15PM Surface Mid-depth Bottom 150 7,550 14,200 230 640 7,700 250 625 5,100 440 1,500 11,900 440 510 1,450 Mar. 9, 11, 25, 27, Apr. 7, - Samples from all depths - Maximum 12. Apr. 10 (a) 1:45PM Surface Mid-depth Bottom 64 850 4,800 (a) 2:00PM Surface Mid-depth Bottom 111 1,230 6,650 (a) 2-.15FM Surface Mid-depth Bottom 193 700 1,900 (a) 2 j 30PM Surface Mid-depth Bottom 200 930 4,250 (a) 2:15PM Surface Mid-depth Bottom 137 2,170 14,400 38 64 2,190 28 51 4,550 9 7 6 244 Table 11 (continued) Tido cyolo: threo to four hours after low tido Parts por million Date Position Stations 1935 8 9 10 11 12 Apr. 11 (a) 2:45PM Surface Mid-depth Bottom 220 2,560 8,750 (a) 3:00PM Surface Mid-depth Bottom 210 3,040 10,300 Apr. 23, 25, May 7, 9, 10, - Samples from all depths - Maximum 12, May 23 11:35AM Surface Mid-depth Bottom 88 350 470 83 310 85 410 59 69 91 May 25 12:50PM Surface Mid-depth Bottom 290 1,050 2,180 230 310 570 200 420 900 220 270 270 My 26 3:08PM Surface Mid-depth Bottom 730 5,850 7,550 660 950 1,900 510 1,050 4,100 May 27 (a) 3:15AM Surface Mid-depth Bottom 430 810 800 (a) 4:00AM Surface Mid-depth Bottom 4,650 (a) 4:08PM Surface Mid-depth Bottom 1,330 6,400 9,950 1,110 2,900 3,200 1,100 3,400 6,250 May 28 (a) 4:08AM Surface Mid-depth Bottom 790 330 980 330 460 650 (a) 5;00AH Surface Mid-depth Bottom 490 1,010 2,050 245 Table 11 (continued) Tido oyolo: Date Position 8 1935 June 4 11:00AM Surface Mid-depth Bottom 500 2,300 2,800 June 5 11:05AM Surface Mid-depth Bottom 321 2,050 4,100 June 7 12:58PM Surface Mid-depth Bottom 390 6,850 8,800 June 19- 10:48AM Surface Mid-depth Bottom 150 420 260 June 20 11:00AM Surface Mid-depth Bottom 13 14 28 July 4 10:50AM Surface Mid-depth Bottom 490 5,000 12,600 July 7 12:50PM Surface Mid-depth Bottom 1,700 1,600 July 8 1:18PM Surface Mid-depth Bottom 1,160 10,950 July 10 (a) 4:05AM Surface Mid-depth Bottom 13 13 17 (a) 3:05PM ' Surface Mid-depth Bottom 9 10 13 July 23 1:18PM Surface Mid-depth Bottom 580 9,700 13,650 three to fotir hours aftor low tide. Parts pur million Stations 9 10 11 12 560 450 630 810 900 270 220 610 330 1,100 3,300 330 330 1,700 1,900 4,550 6,900 170 129 220 180 220 196 9 13 11 14 17 20 580 830 1,000 1,250 1,850 4,550 1,400 1,000 6,500 3,500 12,700 950 1,000 8,650 6,350 8 9 10 11 20 21 5 10 8 8 9 11 640 640 4,200 1,900 6,400 10,100 246 Table 11 (continued) Tide oycle: three to four hours after low tide. Parts per million Date Position Stations 1935 8 9 • 10 11 July 30 8:08PM Surfaoe Mid-depth Bottom 2,650 6,750 10,250 2,700 4,550 7,400 2,000 4,800 8,700 July 31 9:08AM Surface Mid-depth Bottom 2,500 2,350 6,100 2,350 3,600 3,950 2,950 3,500 4,850 Aug. 6 1:18FM Surface Mid-depth Bottom 6,050 14,300 14,700 6,150 10,700 13,500 5,700 12,900 14,200 Aug. 7 1;33PM Surface Mid-depth Bottom 3,400 13,750 15,500 3,200 8,400 11,850 3,050 9,300 14,850 Aug. 18 10:50AM Surface Mid-depth Bottom 2,200 6,200 6,800 2,300 3,300 4,650 1,800 4,900 6,550 Sept. 1 12:35PM Surface I iid-depth Bottom 9,550 15,700 15,600 7,200 14,400 15,600 11,700 15,.100 15,600 Sept. 2 12:48PM Surface Mid-depth Bottom 8,500 15,650 15,650 8,700 15,500 15,400 11,750 15,750 15,050 Sept. 3 1:25PM Surface Mid-depth Bottom 7,500 14,150 13,200 7,700 12,000 11,950 7,450 13,400 14,100 Sept.14 10:40AM Surface Mid-depth Bottom 10,850 15,500 15,700 14,700 15,700 7,950 8,550 15,300 Sept.16 12:40PM Surface Mid-depth Bottom 11,555 15,800 15,350 11,650 15,800 15,200 13,450 15,100 15,650 Oct. 3 12:08PM Surface Mid-depth Bottom 4,550 10,600 12,150 4,100 4,800 7,800 3,900 7,950 11,050 247 Table 11 (oontinued) Tide oyoleu three to four hours after low tide. Parte per million Date Position Stations 1935 8 9 10 11 Oct. 5 1:53PM Surface Mid-depth Bottom 2,450 12,350 15,050 2,150 4,400 11,650 2,850 4,100 14,050 Oct. 17 12:13PM Surface Mid-depth Bottom 4,200 10,900 15,300 2,800 5,500 10,200 2,600 4,500 11,400 Oct. 18 1:48PM Surface Mid-depth Bottom 3,000 8,250 12,450 2,900 10,500 12,900 Oct. 19 1:55PM Surface Mid-depth Bottom 2,100 7,500 14,700 Nov. 2 12:05PM Surface Mid-depth Bottom 4,700 10,100 12,950 2,850 4,150 7,450 Nov. 3 1': 50PM Surface Mid-depth Bottom 5,100 12,250 14,050 5,200 7,650 11,450 4,450 10,200 13,050 Nov. 15 11:50AM Surface Mid-depth Bottom 2,600 10,600 11,800 2,700 4,350 7,050 2,150 4,450 8,000 Nov. 30 11:05AM Surface Mid-depth Bottom 210 5,500 6,100 310 2,950 3,800 * 46 440 3,500 Dec. 2 1:55PM Surface Mid-depth Bottom 8 9 11 8 7 11 Dec. 3 2:05PM Surface Mid-depth Bottom 11 14 15 11 10 9 12 12 13 Dec. 14 1:05AM Surface Mid-depth Bottom 3,400 10,350 10,900 1,250 6,350 7,600 1,000 7} 250 6,900 248 Table 11 (continued) Tide cycle: throe to four hours after low tide Parts per million Date Position Stations 1935 8 9 10 11 12 Dec. 17 2;45PM Surface Mid-depth Bottom 2,100 8,650 11,450 1,600 7,900 8,550 1,200 7,200 8,800 1,000 1,700 8,100 Dec. 29 11:15AM Surface Mid-depth Bottom 10,100 10,000 1936 Jan. 1 1:55PM Surface Mid-depth Bottom 4,600 8,300 10,350 3,100 6,450 7,850 3,400 5,450 7,400 2,900 5,200 10,200 2,500 2,600 5,900 Jan. 2 2:45PM Surface Mid-depth Bottom 6,050 8,300 9,750 5,950 8,850 10,800 7,950 9,000 10,900 Feb. 12 12:30PM Surface Mid-depth Bottom 1,250 1,900 3,700 Feb. 13 1:19PM Surface Mid-depth Bottom 1,100 7,350 11,550 600 2,400 4,400 Mar. 12, 13, 26, 27, 28, 29, Apr, 24, Samples from all depths - Maximum 20. 25, 26, 27, 28, - Apr. 29 3:20PM Surface Mid-depth Bottom 40 140 1,800 6 15 650 May 3, 11, 19, Except: Sta. 9, 20, - Samples froqi all depths - May 11,- B-115. Maximum 10 - May 21 (a) 8:05AM Surface Mid-depth Bottom 4 5 12 5 8 8 (a) 8:05PM Surface Mid-depth Bottom 6 5 9 7 5 4 249 Table 11 (continued) Tide cyole: throo to four hours after low tide. Parte per million Date Position Stations 1936 8 9 10 11 12 May 21 (a) 9s05PM Surface Mid-depth Bottom 36 50 80 23 67 73 May 28 (a) 3-.05PM Surface Mid-depth Bottom 1,320 5,300 7,200 1,360 4,650 5,100 May 29 3:05AM Surface Mid-depth Bottom 1,350 2,400 7,800 10,100 8,500 10,450 June 3 (a) 7:05AM Surface Mid-depth Bottom 500 2,600 4,200 500 3,900 4,100 (a) 7:05PM Surface Mid-depth Bottom 1,300 5,850 7,200 9,650 2,350 3,150 June 9 (a) 11:05AM Surface Mid-depth Bottom 1,300 4,850 6,000 1,100 2,300 5,300 (a) 11:05PM Surface Mid-depth Bottom 7,550 7,600 9,100 2,350 6,400 7,600 Dec. 3 11:50AM Surface Mid-depth Bottom 4,100 5,600 5,800 3,400 5,800 6,200 3,400 4,600 4,250 4,600 5,050 5,500 3,000 4,250 3,050 Dec. 8 4:25PM Surface Mid-depth Bottom 3,400 5,400 8,100 1,700 3,900 3,850 3,650 5,000 9,750 2,550 4,300 9,750 1,300 3,900 10,050 1937 Apr. 13, 27, May 27, - Samples from all depths - Maximum 7. June 10 8:54AM Surface Mid-depth Bottom 22 23 21 41 39 39 25 24 29 250 Table 11 (continued) Tide oyole: three to four hours after low tide. Parts per million Date Position Stations 1937 8 9 10 11 June 11 (a) 9:40AM Surface Mid-depth Bottom 40 61 88 (a) 9:50AM Surface Mid-depth Bottom 52 65 730 (a) 10:00AM Surface Mid-depth Bottom 52 124 90 (a) 10:10AM Surfac e Mid-depth Bottom 66 270 270 (a) 10:20AM Surface Mid-depth Bottom 93 230 240 (a) 10:30AM Surface Mid-depth Bottom 121 320 290 June 23 8:23AM Surface Mid-depth Bottom 9 15 11 11 11 13 9 9 11 June 24 8:22AM Surface Mid-depth Bottom 7 9 9 7 7 7 7 9 9 July 1 (a) 2:20PM Surface Mid-depth Bottom 820 820 7,000 (a) 2:30PM Surface Mid-depth Bottom 820 1,300 7,200 (a) 1:20PM Surface Mid-depth Bottom 240 2,300 3,700 251 Table 11 (oontinued) , Tide oyole: thruo to four hours aftor low tide. Parts por million Date Position Stations 8 9 10 11 12 1937 July 1 (a) Surface 280 1:30PM Mid-depth 1,900 Bottom 3,600 (a) Surface 460 1:40PM Mid-depth 2,000 Bottom 4,200 (a) Surface 280 1:50PM Mid-depth 2,600 Bottom 3,500 (a) Surface 300 2:00PM Mid-depth 2,500 Bottom 3,900 (a) Surface 780 2:10PM Mid-depth 5,200 Bottom 5,300 July 10 (a) Surface 1,900 10:00AM Mid-depth 3,900 Bottom 4,000 (a) Surface 1,800 10:10AM Mid-depth 5,200 Bottom 4,200 July 12 (a) Surface 3,300 11:00AM Mid-depth 4,400 Bottom 5,300 (a) Surface 1,900 11:15AM Mid-depth 5,400 Bottom 5,800 (a) Surface 2,500 11:30AM Mid-depth 8,200 Bottom 8,600 (a) Surface 2,800 11:45AM Mid-depth 9,500 Bottom 9,600 252 Table 11 (continued) Tide cyole: three to four hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 14 (a) Surface 300 12:45PM Mid-depth 4,000 Bottom 3,700 (a) Surface 420 1:00PM Mid-depth 4,600 Bottom 5,100 (a) Surface 780 1:15PM Mid-depth 4,400 Bottom 5,600 (ft) Surface 480 1:30PM Mid-depth 3,700 Bottom 4,600 July 20 (a) Surface 3,800 6:00AM Mid-depth 6,200 Bottom 7,100 (a) Surface 4,500 6:15AM Mid-depth 6,200 Bottom 6,900 (a) Surface 4,300 6:30AM Mid-depth 6,150 Bottom 7,200 (a) Surface 1,600 5:45PM Mid-depth 8,000 Bottom 8,500 (a) Surface 2,150 6:00PM Mid-depth 8,000 Bottom 8,100 July 23 (a) Surface 1,100 8:00AM Mid-depth 4,300 Bottom 4,900 (a) Surface 1,300 8:10AM Mid-depth 4,550 Bottom 4,700 253 Tabic 11 (continued) Tide oyclo: three to four hours after low tide. Parts por million Date Position Stations 8 9 10 11 12 1937 July 23 (a) Surfaoe 1,400 8:20AM Mid-depth 3,450 Bottom 4,350 (a) Surface 1,400 8:30AM Mid-depth 3,500 Bottom 3,550 (a) Surface 1,600 8:40AM Mid-dopth 3,950 Bottom 4,500 July 26 (a) Surface 4,550 10:15AM Mid-depth 5,450 Bottom 7,200 (a) Surface 4,800 10:30AM Mid-depth 7,750 Bottom 6,900 (a) Surface 5,200 10:45AM Mid-depth 9,050 bottom 6,550 (a) Surface 6,000 11:00AM Mid-depth 8,950 Bottom 6,500 July 27 (a) Surface 2,900 10:30AM Mid-depth 4,800 Bottom 6,300 (a) Surface 3,300 10:45AM Mid-depth 6,200 Bottom 6,000 (a) Surface 3,300 11:00AM Mid-depth 5,400 Bottom 5,400 (a) Surface 2,100 11:15AM Mid-dopth 5,700 Bottom 5,700 254- Table 11 (continued) Tide cycles throe to four hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 28 Surface 2,500 12:00AM Mid-depth 5,100 Bottom 8,400 July 29 (a) Surface 1,870 12:00AM Mid-depth 5,400 Bottom 8,000 (a) Surfaoe 2,040 12:15PM Mid-depth 4,900 Bottom 4,000 (a) Burface 2,060 12:30PM Mid-depth 5,500 Bottom 6,400 (a) Surface 2,700 12:45PM Mid-depth 4,700 Bottom 9,200 July 30 (a) Surface 1,950 12:30AM Mid-depth 3,800 Bottom 5,900 (a) Surface 1,750 12:45AM Mid-depth 5,500 Bottom 6,100 (a) Surface 1,600 1:00AM Mid-depth 6,100 Bottom 6,500 (a) Surface 3,250 1:15AM Mid-depth 5,600 Bottom 6,000 July 31 (a) Surface 3,500 2:00PM Mid-depth 9,100 Bottom 10,900 (a) Surface 3,600 2:15PM Mid-depth 8,200 Bottom 10,500 255 Table 11 (continued) Tide cycle: throe to four hours after low tide. Parts por million Date Position Stations 8 9 10 11 12 1937 July 31 (a) Surface 4,200 2:30PM Mid-depth 11,300 Bottom 12,100 (a) Surface 4,200 2:45PM Mid-depth 8,000 Bottom 12,600 Aug. 1 (a) Surface 3,800 3:00PM Mid-depth 7,600 Bottom 9,600 (a) Surface 4,300 3:15PM Mid-depth 9,000 Bottom 11,000 (a) Surface 5,100 3:30PM Mid-depth 11,800 Bottom 11,800 (a) Surface 5,200 3:45PM Mid-depth 8,800 Bottom 11,800 Aug. 2 (a) Surface 4,400 4:00PM Mid-depth 5,800 Bottom 7,700 (a) Surface 4,100 4:15PM Mid-depth 7,300 Bottom 7,900 (a) Surface 3,900 4:30PM Mid-depth 7,400 Bottom 7,400 (a) Surface 3,500 4:45PM Mid-depth 7,100 Bottom 7,600 Aug. 3 (a) Surface 3,050 5:00AM Mid-denth 5,800 Bottom 6,150 256 Table 11 (continued) Tide oyole: three to four hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 3 (a) Surface 3,000 5:15AM Mid-depth 6,000 Bottom 6,800 (a) Surface 4,500 5:30AM Mid-depth 5,800 Bottom 6,200 (a) Surface 1,900 5:00PM Mid-depth 6,550 Bottom 6,900 (a) Surface 3,100 5:15PM Mid-depth 7,000 Bottom 7,200 (a) Surface 2,600 5:30PM Mid-depth 4,200 Bottom 6,900 (a) Surface 3,400 5:45PM Mid-depth 6,200 Bottom 9,300 Aug. 4 (a) Surface 2,800 6:00AM Mid-depth 5,550 Bottom 6,100 (a) Surface 2,900 6:10AM Mid-depth 5,250 Bottom 6,000 (a) Surface 3,000 6:20AM Mid-depth 5,000 Bottom 5,850 (a) Surface 3,800 6:30AM Mid-depth 4,800 Bottom 5,800 Aug. 5 (a) Surface 1,700 7:00AM Mid-depth 4,300 Bottom 4,300 257 Table 11 (continued) Tide oyole: three to four hours after low tide# Parts per million Date Position Stations •; 8 9 10 11 12 1937 Aug. 5 (a) Surface 1,400 7:15AM Mid-depth 4,400 Bottom 4,300 (a) Surface 2,100 6j45PM Mid-depth 5,750 Bottom 11,870 (a) Surface 1,300 7:00PM Mid-depth 5,650 Bottom 6,300 258 Table 12 Tide cycle: four to five hours after ! low tide. Parts per million Date Position Stations 8 9 10 11 12 1934 Oct. 15 Surface 4,500 4,100 4,400 4,200 3,675 2:20PM Mid-depth 12,800 10,000 7,150 9,750 4,700 Bottom 14,900 11,850 11,050 12,600 8,600 Oct. 28 Surface 880 950 1,000 1,000 950 1:05PM Mid-depth Bottom 15,000 9,200 6,630 11,200 4,750 Oct. 29 (a) Surface 3,250 3,260 3,150 2,800 3,500 2:05FM Mid-depth Bottom 15,100 13,600 14,450 15,150 14,450 (a) Surface 1,150 13,850 4,400 6,600 7,800 2:50PM Mid-depth 14,350 13,250 13,900 14,300 13,500 Bottom 14,920 14,050 14,900 14,300 Nov. 13 Surface 390 345 310 350 475 2:30PM Mid-depth 5,550 1,300 1,550 1,550 650 Bottom 9,000 5,900 390 7,750 640 Dec. 11 Surface 2,070 2,010 2,100 1,850 1,380 12:35PM Mid-depth 13,250 2,950 8,250 4,100 3,400 Bottom 13,300 12,400 11,200 12,700 9,400 Dec. 28 Surface 2,800 2,750 2,400 760 840 2:25PM Mid-depth 13,450 11,450 9,800 11,150 5,550 Bottom 11,850 13,100 12,400 13,500 10,700 1935 Jan. 9 Surface 92© 1,040 660 640 360 12:20IM Mid-depth 8,650 3,900 3,100 2,600 360 Bottom 9,500 8,200 3,850 8,000 800 Jan. 11 Surface 6 4 6 6 7 2:25PM Mid-depth 5 5 5 5 Bottom 5 5 4 6 Feb. 7 Surface 300 190 200 148 12:25PM Mid-depth 460 950 700 1,750 Bottom 2,350 850 1,175 1,820 Feb. 22 Surface 116 179 23 19 23 11:50AM Mid-depth 8,900 2,450 1,750 1,800 32 Bottom 12,300 4,900 2,900 8,450 103 259 Table 12 (continued) Tide cycle: four to five hours after ! low tide. Parts per million Date Position Stations 1935 8 9 10 11 12 Mar. 10, 24, - Samples from all depth s - Maximum 9. Apr - 9 2:10FM Surface Mid-depth Bottom 1,210 11,900 9,550 900 3,700 11,200 360 4,500 12,100 280 280 2,420 Apr. 10 (a) 2:45PM Surface Mid-depth Bottom 190 1,430 4,100 (a) 3:00PM Surface Mid-depth Bottom 290 3,010 13,600 (a) 3:15PM Surface Mid-depth Bottom 220 8,400 6,450 (a) 3:30PM Surface Mid-depth Bottom 280 11,700 12,550 May 6, 8, - Samples from all depths - Maximum 8. May 22 11:50AM Surface Mid-depth Bottom 288 620 620 420 530 540 380 500 580 360 410 530 May 24 1:20PM Surface Mid-depth Bottom 790 3,300 3,050 800 3,400 1,500 800 1,300 3,550 600 1,100 1,250 May 26 4:08PM Surface Mid-depth Bottom 1,520 11,850 11,850 1,480 8,900 10,200 940 11,600 10,000 May 27 (a) 4:08AM . Surface Mid-depth Bottom 820 4,800 6,400 780 1,300 3,150 (a) 5:08PM Surface Mid-depth Bottom 7,550 12,650 11,000 3,850 9,950 11,800 2,550 10,400 11,850 260 Table 12 (continued) Tide oyole: four to five hours after Parte per million Date Position Stations 8 9 10 11 1935 May 28 Surface 660 540 5:08AM Mid-depth 1,550 1,150 Bottom 2,400 1,500 June 2 Surface 900 800 630 9:19AM Mid-depth 1,750 1,900 1,400 Bottom 2,050 1,900 2,000 June 6 Surface 780 750 580 12:55PM Mid-depth 9,200 4,900 4,800 Bottom 7,400 8,100 9,250 June 21 Surface 15 17 16 1:08PM Mid-depth 15 19 18 Bottom 18 20 21 June 22 Surface 11 10 25 1:05PM Mid-depth 13 11 21 Bottom 13 15 29 July 6 Surface 2,050 2,700 2,750 1:10PM Mid-depth 12,850 8,450 10,300 Bottom 13,150 11,800 12,100 July 10 (a) Surface 11 10 9 5:05AM Mid-depth 15 10 10 Bottom 16 13 21 (a) Surface 9 10 12 4:05PM Mid-depth 16 7 8 Bottom 11 12 14 July 19 Surface 920 760 840 10:45AM Mid-depth 1,500 1,400 1,200 Bottom 1,600 1,450 1,450 July 20 Surface 540 840 720 11:20AM Mid-depth 2,300 1,000 1,950 Bottom 4,650 2,000 3,700 July 22 Surface 2,200 2,150 1,800 1:15FM Mid-depth 10,850 4,050 5,800 Bottom 14,300 10,150 10,250 261 Table 12 (continued) Tide oyclo: four to five hours after Parts per million Date Position Stations 8 9 10 11 1935 July 30 Surface 4,400 3,500 2,950 9:08PM Mid-depth 9,750 7,000 4,800 Bottom 11,200 8,100 5,300 July 31 Surface 2,900 3,000 3,800 10:08AM Mid-depth 6,600 7,000 7,650 Bottom 8,050 7,000 9,600 Aug. 2 Surface 5,100' 2,950 3,500 11:09AM Mid-depth 10,950 9,300 8,150 Bottom 10,250 8,850 9,850 Aug. 3 Surface 3,850 3,600 3,000 11:20AM Mid-depth 11,950 5,300 10,000 Bottom 15,000 11,200 11,800 Aug. 4 Surface 4,600 4,300 3,500 12:50PM Mid-depth 14,300 11,500 11,500 Bottom 14,200 12,600 13,700 Aug. 5 Surface 4,850 5,050 6,100 12:55PM Mid-depth 12,700 5,100 12,450 Bottom 14,150 11,100 13,750 Aug. 17 Surface 4,850 3,900 3,000 11:20AM Mid-depth 14,300 10,900 12,700 Bottom 14,500 13,100 13,400 Aug. 19 Surface 6,150 5,800 4,800 12:50PM Mid-depth 13,550 11,400 12,050 Bottom 13,750 12,700 13,150 Aug. 20 Surface 5,400 4,450 4,100 1:23PM Mid-depth 12,300 7,300 0,150 Bottom 12,290 11,200 10,200 Sept.12 Surface 7,700 6,800 7,100 10:45AM Mid-depth 14,550 14,250 15,100 Bottom 14,500 12,500 15,050 Sept.13 Surface 13,600 12,800 15,400 11:05AM Mid-depth 16,300 16,200 16,000 Bottom 16,200 16,100 16,200 262 Table 12 (continued) Tide cycles four to five hours after low tide. Parts per million Date Position Stations 1935 8 9 10 11 Sept.14 12:35PM Surface Mid-depth Bottom 16,300 16,600 16,650 16,050 16,200 16,500 14,500 16,350 16,200 Sept.15 12:50PM Surface Mid-depth Bottom 4,400 4,450 4,350 4,400 4,400 4,500 4,450 4,450 4,400 Sept.16 1:35PM Surface Mid-depth Bottom 14,500 16,250 16,750 15,100 16,500 16,450 15,900 16,200 16,350 Sept.26 10:53AM Surface Mid-depth Bottom 3,600 12,700 13,600 8,700 15,200 14,900 14,900 15,450 Sept.29 11:43AM Surface Mid-depth Bottom 9,100 15,700 16,300 12,750 15,100 16,050 12,750 16,250 16,100 Oct. 2 11:48AM Surface Mid-depth Bottom 3,000 6,000 10,000 2,800 3,900 7,500 3,500 4,500 7,500 Oct. 4 1:45PM Surface Mid-depth Bottom 3,000 11,800 13,700 Oct. 16 12113PM Surface Mid-depth Bottom 9,600 14,800 9,650 6,300 13,200 14,250 7,900 8,600 13,850 Oct. 18 1:55PM Surface Mid-depth Bottom 6,750 12,750 13,650 Nov. 1 12:20PM Surface Mid-depth Bottom 6,250 13,600 13,150 5,150 12,000 12,150 5,550 10,450 12,650 Nov. 16 1:45PM Surface Mid-depth Bottom 3,950 11,200 11,300 2,850 10,200 10,050 1,600 9,300 10,400 12 263 Table 12 (continued) Tide cyclo: four to five hours after Parts per million Date Position Stations 1935 8 9 10 11 Nov. 29 11:20AM Surface Mid-depth Bottom 700 3,500 8,400 Dec. 2 2:00PM Surface Mid-depth Bottom 11 11 15 Dec. 13 11:05AM Surface Mid-depth Bottom 2,450 10,800 10,400 2,100 4,300 7,600 1,100 6,400 9,500 Dec. 16 2:05PM Surface Mid-depth Bottom o, 350 10,800 11,200 4,750 9,950 10,400 2,150 8,650 10,150 Dec. 17 2:50PM Surface Mid-depth Bottom 850 12,200 10,500 1936 Jan. 21 7:00AM Surface Mid-depth Bottom Jan. 22 7:55AM Surface Mid-depth Bottom 2,350 10,600 11,800 4,450 11,650 11,850 Jan. 23 8:41AM Surface Mid-depth Bottom 220 8,350 7,250 Jan. 24 9:16AM Surface Mid-depth Bottom Jan. 26 Surface 2,400 10;50AM Jan. 27 10; 35AM Mid-depth Bottom Surface Mid-depth Bottom 9,850' 11,550 4,250 10,100 11,800 12 2,000 9,900 11,200 4,700 2,250 10,900 260 310 4,050 27 26 27 264 Table 12 (continued) Tide cycle: four to five hours after low tide. Parts per million Date Position Stations 1936 8 9 10 11 Jan. 28 12:38PM Surface Mid-depth Bottom 1,450 6,350 7,550 Feb. 6 8:45AM Surface Mid-depth Bottom 1,400 6,300 9,200 Feb. 7 9:20AM Surface Mid-depth Bottom 2,250 9,850 7,400 Feb. 8 10:05AM Surface Mid-depth Bottom 2,900 7,100 8,350 Feb. 10 11:20AM Surface Mid-depth Bottom 3,500 11,000 11,050 2,800 5,350 10,750 Feb. 11 12:00AM Surface Mid-depth Bottom 1,850 2,900 8,900 Feb. 12 12:40PM Surface Mid-depth Bottom 1,550 5,950 8,500 Feb. 24 10:35AM Surface Mid-depth Bottom 3,300 12,400 12,650 2,600 11,600 13,600 Feb. 25 11:23AM Surface Mid-depth Bottom 4,050 4,400 12,750 3,250 8,000 8,000 3,200 6,100 13,100 Feb. 26 12:15PM Surface Mid-depth Bottom 1,850 6,250 4,450 1,600 4,700 7,600 1,150 1,750 5,950 Feb. 27 1:10PM Surface Mid-depth Bottom 3,100 9,600 12,300 2,550 9,900 11,550 1,500 11,100 10,400 265 Table 12 (oontinued) Tide oyole; four to five hours after low tide. Parts per million Date Position Stations 1936 8 9 10 11 12 Mar. 4 7sOOAM Surfaco Mid-depth Bottom 5,450 13,300 13,950 3,350 13,900 13,800 3,100 13,350 12,350 4,750 12,050 12,450 600 7,800 11,250 Mar. 5 7:47AM Surface Mid-depth Bottom 3,600 11,550 11,350 3,400 12,400 12,800 4,400 12,000 12,600 2,300 12,300 13,200 1,200 9,500 11,300 Mar. 6 8:32AM Surface Mid-depth Bottom 1,900 12,350 10,950 3,200 12,000 11,200 2,200 10,400 11,400 1,800 10,100 13,700 750 6,750 6,800 Mar. 7 9:09AM Surface Mid-depth Bottom 2,500 10,500 11,500 1,900 9,900 9,800 1,000 6,000 9,800 660 4,550 10,500 200 6,250 7,900 Mar. 8 9:44AM Surface Mid-depth Bottom 2,600 12,350 12,600 1,700 11,900 11,700 4,000 9,300 11,450 2,000 12,000 10,100 520 4,200 10,900 Mar. 26, 28, Maximum 8. Apr. 14, 15, 16, 17, 21, 22, 23, - Samples from all depths - Apr. 24 (a) 11:22AM Surface Mid-depth Bottom 3 3 3 3 3 (a) 11:50FM Surface Mid-depth Bottom 20 45 76 17 23 59 Apr. 26 (a) 1:50AM Surface Mid-depth Bottom 11 15 19 12 11 27 (a) 2:19PM Surface Mid-depth Bottom 3 3 3 2 3 3 4 3 4 (a) 2:05PM Surface Mid-depth Bottom 4 5 4 4 4 7 266 Table 12 (continued) Tide cyole: four to five hours after low tide. Parts per million Date Position Stations 8 9 10 11 1936 Apr. 27 Surface 3:05PM Mid-depth 7 5 Bottom 25 15 Apr. 28 Surface 4:20PM Mid-depth « 7 33 Bottom 189 230 May 1 Surfaoe 17 7 16 6:44AM Mid-depth 162 27 9 Bottom 510 340 29 May 2 Surface 10 6 9 7:10AM Mid-depth 251 50 10 Bottom 630 530 235 May 4, 5, 6, 7, 8, 9, 10, - Samples from all depths - Maximum May 11 (a) Surface 7 5 6 12:55PM Mid-depth 6 4 5 Bottom 5 5 14 (a) Surface 4 4 12:25PM Mid-depth 3 5 Bottom 4 5 (a) Surface 4 6 1:05PM Mid-depth 4 6 Bottom 6, 10 (a) Surface 6 4 12:20AM Mid-depth 33 3 Bottom 940 54 May 12 Surface 10 8 10 2:05EM Mid-depth 18 23 14 Bottom 123 50 26 May 13 Surface 119 22 17 2:43PM Mid-depth 2,400 920 43 Bottom 2,000 6,900 3,800 May 17 Surface 6 6 10 5:59AM Mid-depth 6 6 9 Bottom 6 6 8 267 Table 12 (continued) Tide cycle: Date Position 1936 8 May 21 (a) 9:05AM Surface Mid-depth Bottom (a) 9:30AM Surface Mid-depth Bottom 4 7 8 (a) 10:05PM Surface Mid-depth Bottom May 22, 23, - Samples from all depths May 24 12:23PM Surface Mid-depth Bottom 31 13 15 May 25 1:20PM Surface Mid-depth Bottom 18 21 27 May 26 2:17PM Surface Mid-depth Bottom 690 3,100 6,000 May 27 3:20PM Surface Mid-depth Bottom 1,200 3,300 7,600 , May 28 (a) 4:11R.1 Surface Mid-depth Bottom 750 3,700 5,700 (a) 4:05PM Surface Mid-depth Bottom May 29 (a) 4:27AM Surface Mid-depth Bottom 650 2,600 6,350 (a) 4:05AM Surface Mid-depth Bottom four to five hours after low tide. Parts per million Stations 9 10 11 5 4 7 14 10 20 8 6 10 10 11 9 780 280 4,900 920 4,750 1,100 ■ Maximum 9. 13 35 11 22 18 29 31 96 29 93 680 770 1,250 1,250 5,700 4,700 1,050 950 5,700 4,550 7,000 7,750 950 800 2,400 1,200 3,100 4,600 1,150 1,160 4,850 5,200 7,750 5,050 700 650 4,850 5,200 4,000 6,100 6,950 6,150 11,300 9,900 10,950 10,900 288 Table 12 (continued) Tide cycle: four to fivo hours after low tide. Parts per million Date Position Stations 1936 8 9 10 11 12 May 30 6:12AM Surface Mid-depth Bottom 620 1,550 4,200 240 950 4,900 410 1,550 5,600 May 31 6:18AM Surface Mid-depth Bottom 530 4,350 6,600 520 3,050 5,300 680 2,800 5,550 June 1 7:02AM Surface Kid-depth Bottom 1,300 4,500 5,300 1,150 4,900 6,150 1,150 1,750 3,200 June 2 7:49AM Surface Mid-depth Bottom 950 2,500 4,300 1,150 2,050 2,200 1,250 1,900 2,200 June 3 (a) 8:14AM Surface Mid-depth Bottom 1,050 5,350 7,150 950 5,850 6,100 1,100 3,200 6,400 (a) 8:05AM Surface Mid-depth Bottom 1,550 2,850 4,500 950 3,600 4,800 (a) 8:05PM Surface Mid-depth Bottom 3,050 8,950 9,550 5,900 4,650 9,800 June 9 12:05PM Surface Mid-depth Bottom 2,400 4,400 6,700 2,980 3,450 7,000 June 10 12:05AM Surface Mid-depth Bottom 4,400 6,000 9,000 4,950 8,950 11,100 Nov. 26 6:50AM Surface Mid-depth Bottom 10,800 14,100 14,200 11,200 15,000 14,600 14,600 14,600 14,000 6,900 13,950 13,600 13,700 13,650 13,600 1937 liar. 21 10:55AM Surface 740 900 Mid-depth 1,000 900 Bottom 1,000 900 880 900 1,000 2B0 Table 12 (continued) - Tide cycle: rour to five hour3 after low tide. Parts per million Date Position Stations 1937 8 9 10 11 Apr- 2 1:58PM Surface Mid-depth Bottom 1,000 4,400 8,900 900 7,500 8,600 700 4,500 4,600 Apr. 25, 27, May 25, 26, - Samples from all depths - Maximum 5. June 11 (a) 10:40AM Surface Mid-depth Bottom 120 310 230 (a) 10:50AM Surface Mid-depth Bottom 190 360 380 (a) 11:00AM Surface Mid-depth Bottom 230 330 370 (a) 11:10AM Surface Mid-depth Bottom 520 1,520 1,500 (a) 11:20AM Surface Mid-depth Bottom 1,330 2,700 2,200 (a) 11:30AM Surface Mid-depth Bottom 2,080 6,650 8,100 June 22 8:16AM Surface Mid-depth Bottom 17 17 21 17 15 21 11 13 19 July 7 8:18AM Surface Mid-depth Bottom 320 2,400 2,900 400 1,300 1,000 240 1,100 1,000 July 8 8:35AM Surface Mid-depth Bottom 210 790 810 170 920 940 150 520 770 July 10 (a) 10;20AM Surface Mid-depth Bottom 2,600 5,400 5,500 270 Table 12 (continued) Tide cycles four to fivo hours after low tide. Parts per million * Date Position Stations 8 9 10 11 12 1937 July 10 (a) Surface 2,800 10:30AM Mid-depth 6,000 Bottom 6,200 (a) Surface 2,500 10:40AM Mid-depth 7,400 Bottom 7,500 (a) Surface 3,700 10:50AM Mid-depth 8,800 Bottom 8,900 (a) Surface 3,100 11:00AM Mid-depth 10,500 Bottom 11,000 (a) Surface 3,400 11:10AM Mid-depth 12,300 Bottom 12,300 July 12 (a) Surface 4,800 12:00AM Mid-depth 8,800 Bottom 9,900 (a) Surface 3,900 12:15PM Mid-depth 9,200 Bottom 11,800 (a) Surface 4,000 12:30PM Mid-depth 12,100 Bottom 13,000 (a) Surface 6,900 12:45PM Mid-depth 13,800 Bottom 11,500 July 13 (a) Surface 2,400 1:00PM Mid-depth 10,000 Bottom 11,300 (a) Surface 3,000 1:10PM Mid-depth 8,600 Bottom 8,000 271 Table 12 (continued) Tide oyole: four to five hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 13 (a) Surface 4,000 1:20PM Mid-depth 7,700 Bottom 8,400 (a) Surface 2,300 1:30PM Mid-depth 9,200 Bottom 9,400 (a) Surface 2,800 1:40FM Mid-depth 8,500 Bottom 8,400 July 14 (a) Surface 400 1:45PM Mid-depth 3,700 Bottom 5,300 (a) Surface 5,400 2:00PM Mid-depth 8,600 Bottom 8,500 (a) Surface 1,300 2:15PM Mid-depth 7,500 Bottom 8,500 (a) Surface 1,400 2:30PM Mid-depth 6,700 Bottom 7,200 July 17 (a) Surface 3,400 5:00AM Mid-depth 10,700 Bottom 11,600 (a) Surface 3,900 5LI0AM Mid-depth 10,900 Bottom 12,300 July 20 (a) Surface 4,700 6:45AM Mid-depth 6,750 Bottom 7,500 (a) Surface 5,050 7:00AM Mid-depth 5,650 Bottom 7,300 .272 Table 12 (continued) Tide cyole: four to five hours after low tide. Part3 per million Date Position Stations 8 9 10 11 12 1937 July 20 (a) Surface 3,850 7:15AM Mid-depth 5,650 Bottom 8,700 (a) Surface 4,350 7:30AM Mid-depth 6,800 Bottom 8,700 July 21 (a) Surface 1,900 7:30AM Mid-depth 6,150 Bottom 7,400 (a) Surface 2,000 7:40AM Mid-depth 7,000 Bottom 7,400 (a) Surface 1,700 7:50AM Mid-depth 8,800 Bottom 9,300 (a) Surface 2,600 8:00AM Mid-depth 6,000 Bottom 8,000 (a) Surface 2,800 8:1QAM Mid-depth 8,500 Bottom 8,600 July 23 (a) Surface 1,800 8:50AM Mid-depth 3,650 Bottom 4,400 (a) Surface 1,700 9:00AM Mid-depth 3,900 Bottom 3,500 (a) Surface 2,100 9:10AM Mid-depth 5,800 Bottom 5,400 (a) Surface 2,200 9:20AM Mid-depth 6,200 Bottom 6,200 273 Table 12 (continued) Tide oycle: four to five hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 23 (a) Surface 2,000 9:30AM Mid-depth 5,900 Bottom 6,400 July 25 (a) Surface 2,900 10:00AM Mid-depth 8,000 Bottom 8,800 (a) Surface 3,700 10:10AM Mid-depth 9,400 Bottom 9,800 (a) Surface 3,800 10:20AM Mid-depth 7,900 Bottom 11,400 (a) Surface 4,700 10:30AM Mid-depth 10,300 Bottom 10,300 (a) Surface 5,200 10:40AM Mid-depth 10,000 Bottom 10,800 July 26 (a) Surface 6,100 11:15AM Mid-depth 11,150 Bottom 11,400 (a) Surface 7,950 11:30AM Mid-depth 11,250 Bottom 12,550 (a) Surface 7,600 11:45AM Mid-depth 11,900 Bottom 12,100 (a) Surface 8,950 12:00AM Mid-depth 12,400 Bottom 12,100 July 27 (a) Surface 3,500 11:30AM Mid-depth 5,800 Bottom 6,000 274 Table 12 (continued) Tide cycles four to five hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 27 (a) Surface 3,400 11:45AM Mid-depth 5,800 Bottom 6,900 (a) Surface 4,100 12:00AM Mid-depth 8,100 Bottom 8,100 (a) Surface 7,500 12:15PM Mid-depth 11,900 Bottom 12,500 July 28 (a) Surface 3,000 12:10PM Mid-depth 4,500 Bottom 10,100 (a) Surface 2,700 12;20PM Mid-depth 10,000 Bottom 10,600 (a) Surface 3,800 12:30PM Mid-depth 10,100 Bottom 9,200 (a) Surface 3,700 12:40PM Mid-depth 8,500 Bottom 10,500 (a) Surface 3,600 12:50FM Mid-depth 11,100 Bottom 11,900 (a) Surface 4,800 1:00PM Mid-depth 11,800 Bottom 12,900 July 29 (a) Surface 3,000 1:00PM Mid-depth 4,500 Bottom 7,800 (a) Surface 3,100 1:15PM Mid-depth 7,700 Bottom 11,700 275 Table 12 (continued) Tide cycle: four" to five hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 July 29 (a) Surface 4,100 lsSOIM Mid-depth 11,100 Bottom 13,000 (a) Surface 4,800 1:45PM Mid-depth 12,750 Bottom 13,250 July 30 (a) Surface 2,750 1:30AM Mid-depth 5,500 Bottom 5,400 (a) Surface 2,000 1:45AM Mid-depth 6,000 Bottom 5,100 (a) Surface 2,900 2:00AM Mid-depth 5,700 Bottom 5,700 (a) Surface 4,600 2:15AM Mid-depth 10,200 Bottom 3,800 July 31 (a) Surface 4,800 3:00PM Mid-depth 10,000 Bottom 12,800 (a) Surface 5,600 3:15PM Mid-depth 12,800 Bottom 13,300 (a) Surface 6,600 3:30PM Mid-depth 11,300 Bottom 14,200 U) Surface 7,600 3:45m Mid-depth 13,300 Bottom 14,100 Aug. 1 (a) Surface 6,200 4:00PM Mid-depth 12,900 Bottom 12,800 276 Table 12 (continued) Tide oyole: four to five hours after low tide. Parts per million Date Position Stations 8 9 10 11 12 1937 Aug. 1 (a) Surface 6,200 4:15PM Mid-depth 9,700 Bottom 13,300 (a) Surface 9,000 4:30PM Mid-depth 14,100 Bottom 13,800 (a) Surface 8,200 4:45FM Mid-depth 14,300 Bottom 14,300 Aug. 2 (a) Surface 5,500 5:00AM Mid-depth 9,700 Bottom 10,500 (a) Surface 5,800 5:15AM Mid-depth 10,800 Bottom 11,200 (a) Surface 4,400 5:00PM Mid-depth 5,350 Bottom 6,700 Aug. 3 (a) Surface 4,450 5:45AM Mid-depth 7,800 Bottom 8,100 (a) Surface 4,550 6:00AM Mid-depth 7,600 Bottom 7,900 (a) Surface 5,300 6:15AM Mid-depth 7,800 Bottom 7,400 (a) Surface 5,400 6:30AM Mid-depth 9,900 Bottom 9,800 (a) Surface 3,400 6:00PM Mid-depth 5,800 Bottom 9,800 277 Table 12 (continued) Tide cycle: four to five hours after low tide. Parts per rail lion Date Position Stations 8 9 10 11 12 1937 Aug. 3 (a) Surface 4,200 6:15PM Mid-depth 9,700 Bottom 10,700 (a) Surface 5,500 6:30PM Mid-depth 10,900 Bottom 12,200 (a) Surface 5,400 6j45PM Mid-depth 11,700 Bottom 11,300 Aug. 4 (a) Surface 3,100 6:40AM Mid-depth 5,400 Bottom 6,150 (a) Surface 4,100 6:50AM Mid-depth 5,850 Bottom 6,950 (a) Surface 4,250 7:00AM Mid-depth 6,150 Bottom 7,050 (a) Surface 3,950 7:10AM Mid-depth 7,150 Bottom 7,300 (a) Surface 5,100 7:20AM Mid-depth 9,600 Bottom 10,400 Aug. 5 (a) Surface 1,500 7:30AM Mid-depth 4,000 Bottom 4,700 (a) Surface 2,700 7:45AM Mid-depth 4,300 Bottom 5,500 (a) Surface 3,100 8:00AM Mid-depth 4,300 Bottom 5,800 278 Table 12 (continued) Date 1937 Aug. 5 (a) 8:15AM Position Surface Mid-depth Bottom Tide oyolo: four to five hours after low tide. Parts per million Stations 8 9 10 11 12 3,700 6,800 7,600 279 Bottom Samples from Station 9A takon ut or about High tido, Samplos takon one minuto apart# Tho majority of those samplos fall into Tido Cycle 2, High tido to ono hour aftorj timo is givon for tho first samplo. 1937 Apr. 21 8:01AM 2 3 3 3 5 3 Parts por million Apr. 27 12:10PM 2 4 1 3 3 May 3 5:00PM 3 3 3 3 3 3 Apr- 22 8:49AM 3 1 5 3 3 3 Apr. 2 8 12:30PM 3 3 3 5 3 3 May 4 5:52PM 2 3 3 2 4 2 Apr. 23 9:33AM 3 3 3 3 3 3 Apr- 29 1:37PM 3 3 3 3 3 3 May 5 7:02AM 4 3 3 3 3 3 Apr. 24 10:21AM 3 3 3 3 3 3 Apr• 30 2:17PM 3 3 3 1 3 4 May 6 7:01AM 5 3 3 3 2 2 Apr. 25 10:51AM 3 3 1 4 3 3 May 1 3:10PM 3 3 3 3 2 2 May 7 7:55AM 3 5 3 3 3 1 Apr. 26 11:37AM 3 1 3 3 3 3 May 2 4:05PM 3 4 2 3 3 5 May 8 8:52AM 5 7 11 7 7 6 280 Bottom samples (continued) 1937 May 9 9:37AM 3 3 3 1 3 5 Parts por million May 15 3:11PM 4 3 3 3 5 3 May 23 9:37AM 5 3 3 3 3 5 May 10 10:28AM 3 2 3 2 2 2 May 16 3:40FM 5 3 3 3 5 3 May 24 10:56AM 3 3 5 3 3 3 May 11 11:15AM 2 3 1 3 2 2 May 17 5:20AM 3 1 2 2 3 May 25 11:26AM 3 3 1 3 3 3 May 12 12:19PM 3 1 2 2 1 2 May 20 8:03AM 3 3 3 3 -3 5 May 26 11:51AM 3 3 3 3 3 3 May 13 1:15PM 7 1 1 5 3 3 May 21 8:52AM 3 3 3 3 3 3 May 27 12:36PM 3 3 4 2 5 3 May 14 2:10PM 67 153 177 193 155 117 May 22 9:41AM 3 3 3 3 3 2 May 28 1:05PM 3 3 3 5 3 3 281 Bottom samples (continued) Parts per million 1937 May 29 June 4 June 10 1:58PM 5 6:46AM 2,300 12:29PM 13,450 4 8,700 13,450 2 7,200 13,450 2 10,200 13,550 3 13,000 13,400 4 10,000 13,550 May 30 June 5 June 11 2:41PM 3 7:48AM 3,000 1:08m 13,200 2 7,400 13,550 3 6,000 13,350 3 7,350 11,750 3 3,050 13,600 4 5,700 13,250 May 31 June 6 June 12 3:34PM 83 8:45AM 11,600 2:04m 7,200 35 7,200 12,700 500 11,900 10,800 300 12,700 10,900 460 12,400 13,200 460 12,700 13,000 June 1 June 7 June 13 4:24PM 10,300 9:45AM 12,500 2:48PM 11,900 6,800 12,650 12,600 6,000 12,100 12,500 5,500 12,750 12,700 8,100 7,350 12,700 5,800 7,650 13,000 June 2 June 8 June 14 4:43AM 3,000 10:15AM 11,800 4:11PM 12,300 4,100 9,200 10,100 4,300 9,550 12,400 800 10,350 12,300 2,900 10,150 12,300 3,300 9,750 12,200 June 3 June 9 June 15 5:30AM 7,200 11:10AM 9,800 4:10AM 5,850 5,000 10,250 6,100 3,900 10,250 9,600 6,600 10,100 6,800 5,300 9,400 6,600 7,000 10,150 7,000 282 Bottom samples (continued) Parts per million 1937 June 16 June 22 June 28 5:15AM 10,000 10:28AM 9,700 2:29PM 11,900 9,500 10,400 12,900 8,000 8,000 10,950 10,500 9,300 13,550 7,300 10,000 13,700 10,250 8,700 13,650 June 17 June 23 June 29 6:15AM 11,300 11:23AM 7,100 3:24PM 14,000 11,100 5,600 14,150 11,800 5,700 14,150 6,400 5,600 14,400 12,000 7,800 13,850 11,700 6,300 14,300 June 18 June 24 June 30 7:03AM 11,100 11:48AM 6,400 3:2 QAM 12,850 9,400 1,000 13,050 11,500 4,900 13,200 11,700 3,500 13,250 10,700 1,500 13,200 11,000 1,000 13,100 June 19 June 25 July 1 8:12AM 12,100 12:33PM 6,900 4:19AM 7,600 11,950 8,700 13,300 11,100 8,000 13,000 12,100 8,000 13,400 11,100 7,800 7,800 12,500 9,800 13,300 June 20 June 26 July 2 9:14AM 12,900 1:13PM 11,400 5:30AM 10,700 12,300 12,100 9,300 12,900 11,600 11,000 12,900 12,300 11,700 11,800 11,800 12,200 12,600 12,600 12,300 June 21 June 27 July 3 9:47AM 8,100 1:50PM 12,500 6:30AM 7,200 9,300 6,400 4,900 9,300 13,400 6,700 8,600 13,400 9,300 9,800 13,300 7,800 3,500 13,500 8,200 283 Bottom samples (continued) 1937 Parts per million July 4 7:23AM 9,550 9,500 8,900 9,400 8,400 5,100 July 10 12:33PM 14,550 14,800 14,400 14,500 14,700 14,850 July 16 6:05AM 12,300 13,000 12,200 12,400 11,300 12,300 July 5 8:38AM 10,800 11,300 11,600 11,500 11,200 11,200 July 11 1:31PM 14,400 15,000 15,100 14,900 14,900 14,800 July 17 6:48AM 13,300 13,300 12,800 13,000 12,500 13,000 July 6 9:26AM 11,000 12,100 12,300 12,500 12,400 12,400 July 12 1:49AM 14,900 15,150 14,850 14,950 14,850 14,750 July 18 7:42AM 13,300 13,300 13,300 13,300 13,300 13,050 July 7 10:2QAM 12,200 12,500 12,800 12,400 12,700 13,100 July 13 2:55AM 14,300 14,400 14,600 14,200 14,600 14,800 July 19 8:54AM 14,500 14,750 14,600 14,450 14,750 14,600 July 8 11:13AM 13,800 14,300 14,100 13,950 13,700 14,300 July 14 3:50AM 4,750 6,350 7,700 7,300 8,000 8,000 July 20 9:10AM 13,600 13,800 14,100 14,000 14,000 14,100 July 9 12:15EM 14,550 14,950 14,900 15,050 15,000 12,250 July 15 4 ;47AM 11,900 10,750 11,550 12,550 9,550 12,450 July 21 10:00AM 12,700 13,500 13,200 12,000 13,800 12,600 284 Bottom samples (continued) 1937 Parts per million July 22 10:41AM 12,300 13,500 13,400 13,400 11,700 13,400 July 29 3:31PM 15,500 15,400 15,600 15,500 15,400 15,700 Aug. 4 9:34PM 15,750 16,050 16,100 16,100 14,000 16,000 July 23 11:16AM July 24 12:20PM 13,600 14,300 14,300 14,000 14,700 14,200 12,100 12,800 11,700 12,100 13,100 12,900 July 30 4:29PM 15,800 15,900 15,600 15,800 15,700 15,400 Aug. 5 10:36PM July 31 5:29PM 14,400 16,000 15,800 15,900 16,000 15,900 15,900 16,000 16,200 16,100 16,200 15,300 Aug. 6 11:11AM 14,900 15,300 15,250 15,350 15,200 15,350 July 25 12:48PM 11,800 12,900 13,300 12,800 11,800 12,200 Aug. 1 6:33PM 15,700 15,900 15,900 16,100 16,100 16,100 Aug. 7 11:3QAM 15,200 15,350 15,450 15,400 15,250 15,450 July 26 1:03PM 15,500 15,800 15,900 16,000 16,000 15,800 Aug. 2 7:29PM 15,800 16,000 15,800 15,600 16,000 15,900 Aug. 8 12:27FM 15,950 15,850 16,000 16,000 16,000 15,900 July 27 2:09PM Aug. 3 8:39PM 16,000 16,400 16,000 16,000 16,000 16,000 Aug. 9 1:14PM 14,100 16,000 16,100 16,200 16,100 16,000 285 Bottom samples (continued) Parts per million 1937 Aug. 10 1:59PM 15,050 15,400 15;,.600 15,700 15,650 15,500 Aug. 16 7:18AM 13,850 13,800 13,900 13,850 13,950 13,850 Aug. 22 11:40AM 15,400 15,400 15,300 15,400 15,600 15,300 Aug. 11 2:47PM 15,400 15,300 15,300 15,450 15,400 15,450 Aug. 17 8:15AM 12,200 14,500 14,450 14,500 15,350 13,700 Aug. 23 12:15PM 16,000 16,100 16,000 15,400 16,100 16,100 Aug. 12 3:53PM 13,950 13,850 14,050 14,000 14,100 13,950 Aug. 18 9:00AM 14,500 14,600 14,450 14,550 14,650 14,550 Aug. 24 12:30PM 14,800 15,300 15,400 15,200 15,400 15,300 Aug. 13 4:28PM 13,900 13,900 14,000 13,700 13,700 13,600 Aug. 19 9:50AM 15,000 15,200 15,200 15,100 15,300 14,900 Aug. 25 1:20PM 15,800 16,000 15,600 14,400 8,000 16,100 Aug. 14 5:16AM 13,450 12,700 14,000 12,350 13,750 13,800 Aug. 20 10:11AM 14,800 14,500 14,800 14,700 14,900 14,900 Aug. 26 2:10PM 15,600 15,900 16,050 16,000 15,400 16,000 Aug. 15 6:03AM 13,300 13,300 13,650 13,150 13,700 13,700 Aug. 21 11:00AM 15,000 14,200 15,400 15,000 15,300 15,300 Aug. 27 2:51AM 14,900 15,100 15,200 15,200 15,600 15,300 286 Bottom samples (continued) Parts per million 1937 Aug. 28 3:39AM 13,700 13,200 14,200 13,800 14,100 14,300 Sept. 3 10:01AM 15,400 16,000 14,350 15,300 15,500 15,500 Sept. 9 2:14AM 15,200 15,200 15,500 15,200 15,400 13,500 Aug. 29 5:07AM 14,000 14,200 14,300 14,100 14,300 14,600 Sept. 4 10:46AM 15,900 15,850 15,950 14,800 15,900 16,000 Sept.10 2:38AM 8,800 10,700 8,400 10,700 13,300 10,600 Aug. 30 6:09AM 14,400 14,500 14,500 14,400 14,400 14,400 Sept. 5 11:43AM 16,200 16,100 16,100 16,100 16,150 16,150 Sept.11 3:45AM 12,800 11,200 14,100 14,300 11,800 14,000 Aug. 31 7:32AM 14,500 14,700 14,800 14,600 14,600 14,900 Sept. 6 11:44PM 16,100 16,200 16,200 16,150 14,850 16,000 Sept.12 4:14AM 11,200 11,900 11,300 11,400 12,100 11,800 Sept. 1 8:15AM 14,700 15,100 15,100 15,100 15,200 15,100 Sept. 7 12:29AM 14,750 14,950 14,400 14,850 14,850 14,800 Sept•13 5:10AM 12,800 12,900 13,000 13,700 12,500 12,800 Sept. 2 9:25AM 14,150 15,600 15,550 15,700 15,450 12,100 Sept. 8 1:07AM 13,600 13,950 13,900 13,900 13,950 13,900 Sept.14 6;28AM 12,900 13,900 13,800 12,900 12,000 12,200 287 Bottom samples (continued) 1937 Sept.15 7:15AM 9,200 9,500 5,400 8,900 10,500 12,200 Parts per million Sept.21 11:57PM 13,350 13,600 13,750 13,350 13,450 13,600 Sept.29 6:49AM 14,700 14,900 14,850 14,750 14,400 13,900 Sept.16 7:08AM 12,900 13,000 13,100 13,000 12,950 13,050 Sept.24 1:37AM 7,800 8,100 8,500 9,500 9,400 9,800 Sept.30 7:49AM 13,200 13,100 13,000 13,700 13,400 > - Sept.17 9:05AM 12,500 11,400 13,500 12,000 13,100 12,000 Sept.25 2:07AM 17,300 15,900 17,450 17,150 17,600 17,700 Sept.18 9:50AM 15,800 15,500 15,600 15,000 15,400 15,600 Sept.26 3:42AM 15,400 10,650 17,000 16,650 17,150 17,500 Sept.19 10:32PM 13,700 12,500 13,100 13,400 13,800 14,000 Sept.27 4:22AM 14,950 14,600 15,200 14,600 15,400 15,050 Sept.20 10:59PM 14,700 15,100 14,950 15,050 14,650 15,050 Sept.28 5:57AM 17,200 17,650 17,150 17,550 17,250 17,000 288 Simultaneous Samples Saybrook Highway Bridgo, Station 9 September 23, 1936 to Maroh 17, 1937 Samples taken from bottom up, each two feet of depth, numbers start with bottom sample.. Table 1 Tide cycle: one hour before to high tide. Parts per million Date Position 1936 Sept,30 8:45AM 1 15550 2 16100 3 16250 4 16200 5 16100 6 14000 7 14400 8 12350 9 10 9:00AM 16350 16400 16350 16500 16400 15750 14900 12050 9:15AM 16550 16600 16700 16800 16760 16700 16100 15450 14050 9:30AM 16700 16850 16000 16750 16850 16750 16600 16300 14950 Oct. 1 9:30AM 17050 17000 17000 17100 17100 16900 16750 16550 15350 9:45AM 17000 16900 17050 17000 16700 16600 16450 16700 16200 10:00AM 17100 16900 17000 17200 17050 16850 16700 16950 16800 10:15AM 17150 17200 17200 17200 17050 17150 16900 16900 16900 16850 Oct. 17 10:30AM 16050 15550 15500 15950 16100 16250 14350 15700 11:00AM 16500 16200 16450 16350 16150 16050 15550 16050 Oct. 19 12:00111 11200 10800 10800 10650 8700 6300 4100 1400 12;30PM 12250 11850 12200 11300 9100 6400 3350 1150 Oct, 30 9:15AM 11000 11600 11150 10100 10350 5350 4200 2850 9:45AM 12350 12750 12600 12550 12250 10900 7350 5450 Oct. 31 10:00AM 13750 12800 13150 11800 9600 4800 3650 10:30AM 13450 14100 14200 13800 13000 9850 3950 289 Table 1 (continued) Tide cyole: ono hour boforo to high tide. Parts per million Date Position 1936 12345 6789 10 Nov. 3 1:00PM 8600 9800 10500 10000 9950 8650 5250 2500 1:30PM 10400 9900 12100 12400 12200 11350 8950 5300 Nov. 5 3:00PM 10400 10000 9700 7600 5800 3850 1200 700 3:30PM 8200 10550 10550 9100 5950 3000 900 700 Nov. 13 9:00AM 6900 10150 10850 10700 8650 7150 4300 1600 9:30AM 8600 11700 11300 11250 11350 10450 7700 5550 Nov. 14 10:00AM 7850 9900 10650 10800 7850 2250 630 510 Nov. 24 6:00AM 15900 15500 15950 15750 15000 14300 12600 6:15AM 15650 15350 15200 15350 14450 13650 9600 Dec. 15 10:30AM 166 171 210 230 160 160 71 63 10:45AM 1540 940 260 210 140 100 78 68 11:00AM 2200 2020 700 270 180 120 90 78 11:15AM 2400 1550 380 250 140 89 81 85 Dec. 17 11:45AM 9900 10000 9600 8900 6250 4950 3550 1550 12:00AM 9950 10000 10000 6800 6000 4200 2700 1300 12:15PM 9150 9800 10000 6550 5150 4250 1300 1000 12:30PM 10350 11000 11850 11400 9000 5800 2700 1200 Dec, 29 10:15AM 8700 10300 10550 10200 9800 6700 2650 930 10:30AM 9850 10450 10350 10050 8250 6350 2800 800 290 Table 1 (continued) Tide cycle: ono hour before to high tido Parts per million Date Position 1936 123456789 10 Dec. 29 10:45AM 9700 10700 11050 10650 10750 8100 5200 1900 11:00AM 11650 11950 11850 11650 10000 8400 5100 2700 Dec. 31 12:00AM 430 450 400 400 100 52 30 24 12:15PM 460 480 450 370 180 21 15 15 12:30PM 6800 6500 5000 3350 1250 140 68 47 12:45PM 6450 6250 5750 3350 550 92 64 35 1937 Jan, 12 9:30AM 870 840 960 600 390 140 42 31 9:45AM 740 650 560 420 28 19 18 15 10:00AM 1370 1290 960 710 410 160 23 19 Jan. 14 10:45AM 2650 2100 2200 1200 550 240 76 54 11:00AM 3600 3400 3400 2900 1300 300 96 56 11:15AM 3350 3600 3600 2750 1200 540 220 83 11:30AM 2900 3300 2700 2700 1300 770 660 440 Jan. 27 10:00AM 2 3 4 4 4 3 4 4 10:15AM 3 4 4 3 4 4 4 4 10:30AM 3 4 3 3 3 4 3 5 10:45AM 3 3 4 4 3 3 3 Jan. 29 11:30AM 910 880 780 540 390 84 13 11 11:45AM 1400 1300 950 860 640 440 270 23 291 Table 1 (continued) Tide cyole: one hour bofore to high tide Parts per million Date Position 1937 123456789 10 Jan. 29 12:00AM 6750 6800 4600 800 140 31 17 14 12:15PM 5800 5600 1200 190 33 16 16 15 Feb. 9 9:00AM 13650 13100 12450 13000 11650 10950 4750 3300 Feb. 24 9:00AM 5 5 5 3 4 5 3 5 9:15AM 3 5 5 6 4 5 5 5 9:30AM 5 7 5 5 5 5 5 3 9:45AM 5 3 5 4 5 7 3 5 Mar. 3 2:15PM 3850 3600 3800 3600 2800 990 500 510 2:30PM 3800 3600 3000 4200 2500 1240 580 560 2:45PM 3800 3500 3500 3400 2200 1260 580 480 Mar. 10 7:45 AM 8550 8850 8000 7100 1000 660 ■ 620 560 8:00AM 8400 6100 7900 900 1200 1220 580 820 8:15AM 9350 10100 9600 5600 1600 610 600 610 8:30AM 9300 9600 9800 5000 900 610 620 590 Mar. 17 1:30PM 13 15 13 13 15 11 13 13 1:45PM 15 13 15 13 13 13 15 13 2:00PM 13 13 15 13 15 13 15 13 2:15PM 13 15 11 13 47 15 13 15 292 Table 2 Date 1936 Tide cyclo: high tido to one hour after. Parts per million Position Sept»30 9:45AM 1 16850 2 16900 3 16850 4 16800 5 16650 6 16700 7 16650 8 16300 9 15900 10 10:00AM 16900 16900 16950 16900 17100 16850 16100 10:15AM 17100 17250 17000 17000 16650 16200 16350 10:30AM 17000 17050 17100 17050 17100 16900 16900 16600 16500 Oct. 1 10:30AM 17150 17400 17050 17500 17100 17000 17000 17100 17000 16950 10:45AM 17100 17100 17200 17150 17100 17000 17100 17000 17050 17050 11:00AM 17100 17100 17150 17100 17150 17350 17050 17100 17000 17100 11:15AM 17000 17100 17150 17100 17100 17000 17050 17050 17100 11:30 Art 16950 17100 17000 17100 17000 17150 17050 17100 17100 Oct. 17 11:30AM 16800 16450 16800 16700 12:00AM 16800 16750 16850 17050 16750 16750 16700 16650 16800 12:30PM 16800 16800 16800 16800 16800 16700 16850 16750 16650 16750 Oct. 18 12:15PM 9650 8850 8000 7150 5700 2700 950 900 12:30PM 9050 7900 7350 5900 3650 1950 950 12:45PM 8300 7400 6800 6400 4550 4000 2050 850 1:00PM 7700 8200 6800 6500 5000 2650 2100 1250 Oct. 19 1:OOPM 12900 12650 11450 11150 9800 8000 3800 1500 1:30PM 11100 11400 10700 ' 10800 8150 6050 1950 1750 1600 Oct. 27 8:00AM 13600 13700 13400 12600 12000 7800 6050 4650 8:30AM 13550 13500 13100 12700 11900 9050 4350 1850 293 Table % (continued) Date 1936 1 2 Oct. 30 10:15AM 12400 12650 10:45AM 12600 13000 Tide cycle: high tide to ono hour after Parts por million Position 3 4 5 6 7 8 12800 12500 11350 8700 7800 3200 13200 13000 13300 10900 7200 1800 10 Oct. 31 11:00AM 11:30AM Nov. 5 4:00PM 4:30PM 14550 14650 11550 14500 14600 14600 15000 14250 11850 3600 1420Q 14250 13400 12850 9050 5850 Nov. 3 2:00PM 6500 12200 12700 13100 12600 11000 4500 3100 2:30PM 13900 11800 9500 12000 10900 8900 5600 3600 11100 11800 11150 11750 11600 9000 6050 3500 1850 900 11350 9700 7550 4900 1350 1150 Nov. 13 10:00AM 10:30AM 9350 12750 3900 3800 12350 11900 11200 7700 3800 2600 12000 11400 11450 9150 3400 2550 Nov. 14 10:30AM 11:00AM 11:30AM Nov, 24 6:30AM 6:45AM 7:00AM 7:15AM 7:30AM 10900 2700 9850 850 7550 2500 1000 440 270 210 6150 3350 1150 420 230 160 1000 750 510 220 120 63 15150 15100 15100 15650 14950 13800 8800 15000 14950 14600 14850 13300 14550 15350 15600 14750 14000 9400 15050 15050 13350 10850 6800 15100 15050 13400 7800 6600 14600 14200 12550 7250 6900 Dec. 15 11:30AM 2800 2100 600 190 150 89 65 58 294 Table 2 (continued) Date 1936 1 Dec. 15 Tide cycle: high tide to one hour after• Parts por million Position 8 10 11:45AM 2400 2100 1200 800 210 167 133 150 12:00AM 6600 3800 1900 1300 .420 260 79 39 12:15PM 3350 1800 12(J0 900 460 240 125 133 Dec. 17 12:45PM 10500 10500 11750 2900 5750 3000 1650 1150 1:00PM 10050 10900 10950 10200 7150 4350 1150 1000 1:15PM 10950 11750 12350 11050 10500 8100 3600 1150 1:30PM 10950 11500 12600 11200 9300 5100 1550 1000 1:45PM 11100 10800 12200 11000 8600 4800 1250 950 Dec. 29 11:15AM 11250 11950 12000 10550 9200 7100 4500 2350 11:30AM 7600 9800 9500 8500 8200 6000 3550 2250 11:45AM 10300 11500 11800 11000 10350 8350 3200 1900 12:00AM 10100 11400 11500 11650 10850 7650 2250 1400 12:15PM 10500 10900 9700 7100 3200 1500 1200 320 Dec. 31 1:60PM 6600 6150 6600 3650 310 150 91 84 1:15PM 6450 5400 2750 1050 21 14 15 12 1:30PM 6450 5100 2300 1100 26 13 12 13 1:45FM 6600 6850 2350 1100 85 15 13 13 2:00PM 5200 5100 1900 900 27 13 12 12 1937 Jan, 12 10:15AM 7000 6600 3200 1450 100 42 27 16 10:30AM 2900 2050 800 100 17 16 16 15 295 Table 2 (continued.) Date 1937 Jan. 12 10:45AM 11:00AM 11:15AM Tido cycle: high tide to one hour after- Parts per million Position 1 7450 7750 6750 2 7900 5850 6150 3 3600 2950 2850 4 2200 1150 850 5 260 18 19 8 22 18 15 18 15 16 17 14 15 10 Jan. 14 11:45 All 12:00104 12:15P1I 12:30PM Jan. 27 11:00AM 11:15AM 11:30AM 11:45AM 10700 10500 1030'. 9950 7900 2900 7o0 330 10200 95u0 72eO 49J0 740 390 10400 9200 7100 4850 700 330 10500 10450 10250 9900 1J650 10700 10350 9200 7600 2000 540 260 3 25 27 27 4 29 40 30 3 18 44 24 3 6 13 27 3 4 5 11 3 3 5 5 4 4 4 3 3 4 4 5 Jan. 29 12:30PM 12:45PM 1:00PM 1:16PM 6900 7350 7350 7250 6400 6450 7350 7150 5450 3900 5700 4100 600 430 3350 1600 90 100 1120 180 18 17 29 19 15 14 8 8 15 13 6 7 Feb. 9 9:15/0-1 9:30AM 9:45AM 10:O.AM 1 J:15AM 13250 12650 13650 12300 13550 127o0 13000 12150 11300 11500 12500 12700 11900 11350 5800 3850 133o„ 13250 11950 11200 6000 3650 12350 12850 1205o 11250 5700 5200 13950 1320e 13000 57^., 6650 3450 12050 11550 10700 7250 365e 2600 296 Table 2 (continued) Date 1937 Feb. 24 10:OOAM 10:15AM le:30AM 10:45101 liar. 3 3;C-P:: 3:15E1 5:30PM 3:45PM 4:00PM Mar. 10 8:45AM 9:00AM 9:15AM 9:30AM 9:45AM Mar. 17 2:30PM 2:45PM 3: uOPIvI 3:15F1 Tide cyclo: high tido to one hour after. Parts por million Position 1 2 3 5 5 5 5 3 3 6 3 5 3 5 7 4 6 5 9400 9300 9800 9700 9700 8750 85^e 8900 9050 9000 8850 11050 10100 4350 1J352 1030'J 10600 9200 930^ 9300 840u 6500 9800 9100 8800 79uC 84e0 790j 9000 740>j 11 15 15 17 11 17 17 15 13 17 15 17 11 19 15 17 5 5 3 9 8450 4700 1600 8200 3900 1300 7600 3400 1200 8250 5200 1500 81uG 3600 150o 3400 3950 5200 6600 4500 13 17 17 15 5 3 9 6 600 560 420 380 620 640 1900 1800 5100 1480 13 15 17 19 8 5 5 5 5 5 4 4 5 300 260 240 220 200 270 270 170 160 170 600 760 660 880 2400 620 590 730 780 800 13 16 17 19 13 18 15 19 10 297 Table 3 Date 1936 Sept.30 10:45AM 11:00/01 11:15AM Tide oyolo: one to two hours after high tide. Parts per million Position 123456789 17100 17050 17250 17300 172UU 17000 16850 16550 16500 17050 17100 17150 170o0 17100 16950 16800 16800 16600 17000 17000 17150 16900 16650 16500 15900 15450 10 Oct. 1 11:45AM 12:00AM 12:15PH 12:30PM 16800 16700 16750 18050 15300 16500 16400 16400 16200 17000 17000 17100 17100 17000 1G900 16500 15900 15700 16800 16900 169^0 16450 16450 16500 16500 16300 15400 16900 16750 17000 ISlOo 16200 16300 16400 129u0 13300 Oct. 17 1:00PM 1:30FM 17O00 16800 16750 16550 16800 16700 16750 16700 16800 16750 16700 167o0 16800 16800 16800 16850 16900 16850 16600 16650 Oct. 18 1:15PM 1:3CPM 1:45PM 2:00PM 2:15PM Oct. 19 2:00PM 2:30PM 3:00PM 7500 6100 7400 9000 8250 7800 7550 6500 7200 6600 7550 7600 6100 440: 5350 5350 6200 2700 190^ 4050 4650 2050 16o0 1250 3000 2200 1000 850 850 1750 1900 800 800 750 1250 1750 700 750 750 10700 11050 11150 105u0 9700 3450 2U50 1600 1500 9700 10650 1O650 8050 3400 2000 1300 1150 950 10800 8900 3700 215o 1000 750 750 700 Oct. 27 9:OjAM 10250 12200 13800 129o„ 105o0 4300 285o 1300 9:30AM 12000 13400 12500 100jo 60o0 2300 900 900 Oct. 30 11:15AM 11700 12300 12600 1280j 11050 4400 295o 29o0 298 Table 3 (continued) Date 1936 Oct. 30 11:45AM Oct. 31 12:00AM 12:30PM 1:00PM Nev. 5 5:OOPM 5:30PM Nov. 13 11:00AM 11:30AM 12:00AM Nov. 14 12:00AM 12:30PM Nov. 24 7:45AM 8:00AM 8:15AM 8:30AM 1 2 8650 10200 Tide oyclej one to two hours after high tide . Parts per million Position 3 4 5 6 7 8 9 9250 5800 3550 2000 1150 800 14650 14550 14350 14850 14450 12500 9500 6050 14250 14800 13550 6350 4600 4400 12100 9800 5150 3650 3150 2150 13950 13850 11800 12650 Nov. 3 3:00PM 11000 6400 8850 11850 11500 10500 7200 3900 3:30PM 12200 12200 10400 9550 8150 4400 3400 3600 11750 12100 11200 11900 11850 10350 8350 4750 1350 1150 11500 9900 9100 1800 1600 1500 7650 10650 12000 10500 9800 13000 12850 12350 10000 7250 3000 11600 12100 11800 10350 5150 3100 8500 6200 2350 1750 1700 1700 600 760 720 660 620 540 $00 440 600 660 660 620 610 600 610 590 14650 14950 13600 13200 10900 12750 10950 14900 14300 13600 7450 6900 10000 7900 7050 5950 5500 8650 7350 6350 5450 4950 8750 7500 6650 5450 5100 10 Dec. 15 12:30PM 12:45PM 5650 1600 193 200 2000 920 600 300 163 49 200 140 51 25 21 16 299 Table 3 (continued) Date 1936 Dec. 15 1:00PM 1:15PM 1:30PM Tide cycle: ono to two hours after high tide. Parts per million Position 1 129 140 178 2 140 141 178 3 140 ■ 153 161 4 126 117 117 8 41 51 77 29 21 23 19 19 19 16 17 15 10 Dec. 17 2:00PM 2:15PM 2:30PM 2:45PM Dec. 29 12:30PM 12:45PM 1:00PM 1:15PM 1937 Jan. 12 11:30AM 11:45AM 12:00AM 12:15PM 12:30PM 2350 900 700 800 1450 850 950 900 1100 1000 1000 800 950 900 1000 850 550 550 700 350 300 390 460 420 260 340 390 380 210 290 320 340 9600 11300 9900 11000 8500 5200 700 750 10500 7800 3850 2150 1050 490 10000 7400 3100 1300 1200 270 3000 2000 750 460 800 800 500 76 37 290 240 330 90 350 320 230 320 162 410 360 350 410 205 520 100 240 280 95 420 64. 104 130 56 290 26 58 57 16 79 13 47 38 14 35 20 30 15 14 17 Jan. 14 12:45PM 1:00PM 1:15PM 1:30PM 6800 7400 7100 8050 8450 8800 7500 7100 7450 7200 4800 6400 3200 3000 2650 3450 1300 1300 1400 1150 280 280 340 300 180 179 170 97 55 63 75 39 300 Table 3 (continued) Tide oycle: one to two hours after high tide. Parts per million Date Position 1937 Jan. 27 12:00AM 1 25 2 24 3 18 4 5 5 4 6 3 7 4 8 3 9 10 12:15PM 7 5 5 4 5 4 5 3 12:30PM 4 5 3 5 4 5 5 3 12:45PM 5 4 4 5 4 3 3 4 1:00PM 4 4 5 5 4 4 5 4 Jan. 29 1:30PM 7450 7000 3000 4500 160 31 7 5 1:45PM 560 730 360 190 78 35 20 11 Feb. 9 10:30AM 9900 10950 12750 11950 10400 6750 3550 2600 10:45AM 9200 10900 12800 12450 11900 9250 4750 3050 11:00AM 8200 10050 12850 11850 10700 7100 4500 3300 11:15AM 12400 12100 11750 11900 11350 6950 4750 3650 Feb. 24 11:00AM 5 4 5 3 5 7 5 5 11:15AM 5 5 5 7 5 4 5 3 11:30AM 5 3 5 3 3 5 5 5 11:45AM 3 5 5 2 6 3 5 3 12:00AM 5 3 3 2 4 3 5 5 Mar. 3 4:15PM 9800 9500 8750 4000 1350 580 180 170 4:30PM 10000 8700 7300 3100 950 300 160 180 4:45PM 6000 9350 8450 4300 1100 500 280 200 Mar. 10 10:00AM 8500 9400 9000 7700 3100 1080 840 800 301 Table 3 (continued) Tide oycle: One to two hours after high tide. Parts per million Date Position 1937 1 2 3 4 5 6 7 8 Mar- 10 10:16AM 8800 9900 8400 7200 3300 820 1100 780 10:30AM 7000 6000 3400 2100 900 460 400 390 10:45AM 6100 3900 2800 1920 490 440 400 390 Mar. 17 3:30PM 15 17 17 15 17 17 17 17 302 Table 4 Date 1936 Sept.30 11:30AM 11:45AM 12:00AM 12:15PM Oct. 1 12:45PM 1:OOFM 1:15PM Tide oycle: two to thruo hours after high tide. Parts per million Position 123456789 17000 16850 16650 16550 16000 15600 16350 15950 15700 16000 16600 16600 16600 16700 16600 15650 16700 16800 16700 16200 15600 14950 12400 13500 16500 16650 16750 16550 16500 15650 15450 16300 13500 15050 14900 14700 14700 14850 13100 12300 13100 13600 13600 13200 13250 12850 11900 10000 11900 12100 12000 11700 11500 11300 10900 10500 10 Oct. 17 2:00PM 2:30PM 16800 16650 16700 16600 16750 16700 16400 16150 16150 16600 16750 16500 16450 16400 16400 15850 Oct. 18 2:30PM 2:45PM 3:00PM 3:15PM 3:30PM Oct. 19 3:30PM 4:00PM Oct. 27 10:00AM 10:30AM 9400 1200 1350 1250 6800 1250 850 1350 1250 4500 1400 1250 1500 1300 3300 1350 1200 1400 1300 900 1150 1200 1350 1200 900 850 1200 1150 1100 700 800 1050 1150 1150 800 750 950 1050 1000 4050 1600 1400 950 700 600 480 400 1650 1650 1500 1000 900 800 700 9000 11200 9800 4500 2450 1400 1150 1100 3200 2950 2450 2200 1300 850 650 Oct. 30 12:15PM 1000 1100 1050 1000 850 600 303 Table 4 (continued) Date 1936 Oct o 31 Tide cyole: two to three hours after high tide. Parts por million Position 3 4 5 6 7 8 9 10 1:30PM 7150 5600 4950 4450 3900 3050 2500 2150 2:00PM 3600 4900 4750 4250 3950 3150 2450 1800 Nov. 3 4:00PM 2800 2400 6000 5400 4100 3400 2900 2700 4:30PM 7000 8300 5400 4900 3700 2700 2600 2200 Nov. 13 12:30PM 4700 2900 2300 1800 1500 1300 1200 1:00PM 2900 2950 2650 2000 1500 1500 1500 1:30PM 2400 2500 2700 2250 1750 900 1200 1050 Nov. 14 1:00PM 490 500 510 480 420 400 1:30PM 500 510 510 460 430 Nov. 24 8:45AM 11350 10800 9580 6650 5700 5100 4700 9:00AM 6100 7600 7250 7050 5800 4700 4000 9:15AM 7200 7450 7350 6350 5550 4400 3750 9:30AM 8200 8200 7400 6400 5500 4500 4050 Dec. 15 1:45PM 163 191 185 103 32 23 21 23 2:00PM 123 131 123 93 44 29 19 23 2:15PM 157 159 167 107 51 39 23 21 2:30PM 235 235 199 53 33 17 25 13 Dec. 17 3:00PM 850 950 800 600 420 300 3:15PM 900 1000 800 1000 600 360 250 180 304 Table 4 (continued) Date 1936 Dec. 17 3:30PM 3:45PM 4:00PM 1937 Feb. 9 11:30AM 11:45AM 12:00AM Tide oyole: two to three hours after high tide. Parts per million Position 1 850 550 150 2 950 600 800 1050 550 750 750 370 600 600 280 600 6 7 440 390 230 180 450 330 8 300 130 190 10 3900 5200 4700 4100 3400 1800 1200 1000 2750 3300 3800 3500 2750 2100 1850 1250 3400 3250 3050 2600 2250 1350 1200 1000 Mar. 10 11:00AM 11:15AM 6400. 5100 2900 2220 1110 460 400 380 1200 900 900 600 540 460 380 380 305 Table 5 Tide oycle: three to four hours after high tide. Parts per million Date Position 1936 Oct. 17 3:00PM 1 15000 2 15250 3 15450 4 14800 5 14450 6 13950 7 13950 8 13900 9 10 Oct. 18 3:45PM 1050 1100 1050 1050 1000 950 950 900 4;OOPM 1050 1050 1050 1050 1050 1050 1000 4:15PM 1050 1050 1100 1100 1100 1150 1050 1100 4:30PM 1000 1100 1100 1050 1050 1050 1000 950 Oct. 27 11:00AM 2400 2600 2500 2100 1600 1200 900 11:30AM 2900 2600 2700 2500 1950 1150 700 12:00AM 2900 2700 2700 2400 2400 2050 1650 Nov. 3 5:00PM 4600 4900 5000 3800 3000 2150 1950 1800 Nov. 14 2:00PM 490 480 480 460 440 260 2:30PM 280 300 290 250 220 180 Nov. 24 9:45AM 8500 8100 6600 6050 5150 4350 3950 10:00AM 5750 5600 5750 5350 4850 4250 3600 10:15AM 5700 5600 5600 4900 4550 4300 3750 10:30AM 5550 5500 5600 5600 5100 4150 4050 306 Table 6 Tide cyole: four to five hours after high tide. Parts per million Date Position 1936 123456789 10 Sept.24 9:00AM 9900 8700 6200 3800 4450 3350 3000 2000 9:15AM 4900 4000 3400 3300 3150 2150 9:30AM 4200 3900 4300 3450 3350 3050 2850 2450 9:45AM 7850 6300 5400 4350 3700 3200 3000 2350 Oct. 22 8:00AM 310 300 310 310 300 300 Oct. 23 9:00AM 480 480 460 460 460 440 450 Oct. 24 10:00AM 1330 1250 1290 1270 1220 1150 1130 Oct. 25 11:00AM 2000 1900 1950 1850 1600 1800 1700 Oct. 27 12:30PM 2350 2350 2400 2200 1700 800 1550 Nov. 14 3:00PM 270 280 270 240 220 160 3:30PM 9 9 9 9 9 4:00PM 11 11 11 8 9 9 Dec. 3 7:OOAM 4300 4400 4300 4200 4000 3850 Dec. 8 11:30AM 1750 1700 1700 1800 1700 1500 1450 11:45AM 1850 1900 1800 1900 1700 1700 1450 12:00AM 1750 1800 1800 1800 1700 1600 1450 Dec. 22 10:00AM 5 7 7 13 7 7 9 10:15AM 7 6 8 7 13 7 7 307 Table 6 (continued) Tide cyole: four to five hours after high tide. Parts per million Date Position 1936 Dec. 22 10:30AM 8 9 10 Dec. 24 12:00AM 5 7 5 6 5 6 6 12:15PM 5755655 300 Table 7 Tide cycle; one hour beforo to iow tide Parts per million Date Position 1936 Sept.24 10:00AM 1 5250 2 4750 3 4300 4 3700 5 3500 6 2750 7 2800 8 2650 9 10 10:15AM 5550 4750 4450 4300 3200 2850 2750 2550 10:30AM 6200 4800 4500 4150 3550 3050 2700 10:45AM 6300 4800 4750 4050 3100 2850 2650 11:00AM 6500 4000 3900 3400 2800 2600 2300 Sept.27 1:00PM 3500 3600 3800 3500 3600 3500 1:15PM 3900 3900 3800 3500 3300 3400 1:30PM 3900 3500 3150 3200 2900 2900 1:45PM 2950 3150 2900 2850 2650 2500 2600 Oct. 12 2:30PM 2150 2200 2150 2150 2150 2050 2150 2:45PM 2450 2550 2550 2450 2000 1900 1900 Oct. 22 8:30AM 270 270 260 270 250 260 240 9:00AM 190 190 190 190 200 180 170 Oct. 23 9:30AM 450 460 460 460 460 450 450 10:00AM 400 400 410 400 380 380 370 10:30AM 270 280 280 270 270 240 230 Oct. 24 10:30AM 1150 1150 1100 1100 1090 1080 1070 11:00AM 1000 950 1000 950 930 950 930 11:30AM 900 900 900 890 870 800 780 Oct. 25 11:30AM 1750 1800 1700 1700 1550 1500 1350 309 Table 7 (continued) Date 1936 Oct. 25 12:00AM Oct. 26 12:30PM 1:00PM Nov. 4 8:30AM 2 1400 Tide cyole: ono hour before to low tide. Parts per million Position 3 4 5 6 7 8 1350 1350 1300 1200 1100 500 530 530 540 520 510 460 520 510 510 500 510 500 510 64 61 63 64 48 28 24 10 Nov. 14 4:30PM 5:00PM Dec. 1 6:00AM 8 9 10 8 9 9 9 8 8 7 9 9 9350 9400 4500 2550 1750 1750 Dec. 3 7:15AM 7:30AM 7:45AM 8:00AM 4700 4500 4500 4550 4500 4500 4500 4500 4500 4300 4500 4500 4400 4250 4200 4400 4200 4000 4200 4000 4000 3950 4000 3900 3900 3800 4000 Dec. 8 12:15PM 12:30PM 12:45PM 1:00PM Dec. 22 10:45AM 11:00AM 11:15AM 11:30AM 1850 1500 1600 1500 6 7 7 7 1800 1600 1600 1550 7 9 7 3 1700 1550 1500 1550 7 7 5 5 1800 1550 1600 1500 7 7 7 7 1700 1400 1400 1500 7 6 7 * 5 1600 1350 1400 1400 6 9 7 11 1500 1150 1300 1300 6 4 7 9 310 Parts per million 1936 123456789 10 Dec. 24 12:30PM 6756666 12:45PM 6566666 1: OOPM 5 6 5 6 5 5 6 1:15PM 6 6 6 5 5 5 5 1:30PM 6646566 1937 Jan. 7 12:30PM 4 5 5 6 6 4 5 12:45PM 5 5 5 4 5 5 5 1:00PM 5654555 1:15PM 6 6 4 7 4 4 5 1:30PM 5 4 4 5 5 4 5 Table 8 Tide cyole: low tide to one hour after. Parts per million Date Position 1936 Sept.24 11:15AM 1 6100 2 4350 3 3950 4 3650 5 2800 6 2550 7 2200 8 9 10 11:30AM 6350 4650 3800 2650 2300 1800 11:45AM 7400 5200 4100 3100 2400 2400 1900 12:00AM 7400 4550 3450 2400 2200 2000 Sept.27 2:00PM 3200 3350 2950 2600 2550 2550 2500 2:15PM 4100 3950 3250 3000 2500 2600 2500 2:30PM 3850 3250 3000 2800 2500 2450 2:45PM 5800 5200 3900 3100 2800 2650 2500 Oct. 12 3:00PM 1950 2000 2100 2000 1900 1850 1850 3:15PM 2000 1900 2000 1700 1700 1600 3:30PM 1800 1800 1700 1600 1500 1450 1500 3:45PM 1950 1850 1800 1650 1350 1350 1350 Oct. 17 5:30AM 6050 4250 3500 3200 2900 2700 2250 6:00AM 8150 6850 3950 3150 2950 2550 2350 Oct. 22 9:30AM 130 130 130 130 110 101 73 10:00AM 86 89 93 87 76 78 59 Oct. 23 11:00AM 190 190 190 180 170 160 160 Oct. 24 12:00AM 700 700 700 700 690 680 700 Oct. 25 12:30PM 950 1000 1000 950 900 850 850 312 Table 8 (continued) Tide cycle: low tide to one hour after. Parts par million Date Position 1936 123456789 10 Oct. 25 1:00PM 750 800 800 720 700 560 610 Oct. 26 1:30PM 450 440 450 450 440 420 380 2:00PM 400 410 390 400 400 380 370 Nov. 4 8:45AM 49 49 47 40 36 27 20 9:00AM 42 40 38 34 28 25 15 9:15AM 31 31 29 27 19 17 14 9:30AM 12 11 11 11 12 13 12 Dec. 1 6:15AM 9650 9000 4200 2600 1800 1750 6:30AM 9450 9250 4700 3900 1950 1850 6:45AM 9150 8400 4400 3650 2300 1800 7:00AM 9500 8700 5900 3700 2000 1900 7:15AM 9400 9200 7500 3800 1900 1800 Dec. 3 8:15AM 4400 4500 4300 4000 3900 3800 8:30AM 5400 4300 4100 4150 3650 3600 3400 8:45AM 4300 4300 4100 4000 3500 3400 9:00AM 4100 4100 4000 4100 3600 3350 3450 Dec. 8 1:15PM 1200 1200 1200 1150 1050 900 700 1:30PM 1300 1100 1200 1100 1000 1000 1000 1:45PM 1300 1100 1200 1200 1000 1000 1000 2;Of)PM nnn 11 RO 1 1 RO n no innn pnn Ron 313 Table 8 (continued) Tide cyole: low tide to one hour after. Parts per million 1936 123456789 10 Dec. 22 11:45AM 5 5 5 5 5 6 6 12:00 AM 6 6 6 6 5 6 5 12:15PM 6665656 12:30PM 5 5 6 6 5 6 5 Dec. 24 1:45PM 867756 2:00PM 5 6 5 5 6 5 6 2:15PM 5 5 6 5 5 5 5 2-.30PM 6 5 5 6 5 5 5 1937 Jan. 7 1:45PM 7 4 4 4 5 6 4 2:00PM 4 6 5 4 5 5 5 2:15PM 6555546 2:30PM 4 6 4 6 4 5 4 314 Table 9 Tide cycle; on© to two hours after low tide. Parts per million Date Position 1936 123456789 10 Sept.24 12:15PM 8500 8200 4850 4250 2800 2450 2050 12:30PM 14650 14050 7750 4600 3600 2500 2000 12:45PM 13300 13200 12950 5550 3700 2800 2400 1:00PM 12700 12750 12250 11400 4600 2550 2300 Sept.27 3:00PM 7200 6250 4100 3300 2850 2850 2700 3:15PM 7800 7600 4500 3700 2900 2800 2600 3:30PM 8300 8300 7800 6950 4200 2850 2600 Oct. 12 4:00PM 1900 1850 1800 1550 1200 1150 1200 4:15PM 1800 1750 1700 1250 1050 1000 1100 4:30PM 1600 1700 1600 1300 1200 900 900 4:45PM 1400 1400 1350 1250 900 900 Oct. 17 6:30AM 6400 6750 4150 3650 3150 2800 2200 7:00AM 12000 12200 10900 4450 . 3350 2850 2700 Oct. 22 10:30AM 95 100 91 75 58 51 43 11:00AM 88 90 97 64 39 32 30 Oct. 23 11:30AM 100 92 100 91 81 79 83 12;OOAM 79 73 76 83 54 48 44 Oct. 24 12:30PM 620 600 590 570 560 520 1:00PM 510 520 510 480 450 440 380 315 Table 9 (continued) Date 1936 1 Oct. 25 Tide cycle: one to two hours after low tide. Parts per million Position 3 4 5 6 7 8 9 10 1:30PM 760 760 770 700 610 530 440 2:00PM 1110 770 600 590 500 310 150 Oct. 26 2:30PM 280 270 280 280 280 260 240 3:00PM 200 209 200 180 200 160 120 Nov. 4 9:45AM 12 12 12 12 13 12 12 10:00AM 15 14 16 9 11 12 12 10:15AM 13 13 15 14 13 12 10:30AM 16 16 15 13 11 60 11 Dec. 1 7:30AM 7600 7550 7450 7000 5750 4450 7:45AM 7700 7500 7100 5900 8:00AM 7200 7050 6850 6700 5500 4500 8:15AM 7100 7000 6500 6400 5150 42-50 Dec. 3 9:15AM 4200 4200 4000 3800 3700 3400 3300 9:30AM 4000 4100 4100 3600 3450 3450 3250 9:45AM 4250 4000 4100 4000 3500 3300 3200 10:00AM 4400 3550 3050 2700 2700 2600 Dec. 8 2:15PM 1150 1150 1200 900 900 800 650 2:30PM 1200 1150 1000 850 750 700 650 2:45PM 1150 1050 950 850 800 650 700 316 Table 9 (continued) Tide oycle: one to two hours after low tide. Parts per million 1936 123456789 10 Dec. 22 12:45PM 4 5 7 5 5 5 4 1:00PM 6 5 5 5 5 4 4 1:15PM 6 4 7 5 5 4 6 Dec. 24 2:45PM 5555555 3;OOPM 6455545 3:15PM .4 5 6 5 5 5 3 1937 Jan. 7 2:45PM 5 4 5 4 5 4 5 3: OOPM 7 5 5 6 4 7 4 3:15PM 6 4 5 4 4 5 4 317 Table 10 Tide oyolet two to three hours after low tide. Parts per million Date Position 1936 123456789 10 Sept.23 12:30PM 2500 9850 10200 9800 7200 4700 2600 2000 12:40PM 9900 10100 9900 8200 6200 4400 3700 12:50PM 9700 9500 8500 8300 7000 5600 3100 3600 12:55PM 9500 9550 9250 8700 6100 4800 3900 1:00PM 3700 9600 9700 9700 9300 8850 6050 4450 1:05PM 9250 9400 9700 9500 9000 6300 5200 3600 Sept.24 1:15PM 12050 11600 4600 2450 2200 1:30PM 11850 11700 10550 5000 3250 2300 2000 Sept.27 3:45PM 7400 7250 6500 5700 4150 3750 2900 4:OOPM 6800 7100 6800 6500 5500 3950 3050 4:15PM 6200 6700 6500 5900 5100 4300 3600 4:30PM 6600 6600 6150 5500 4800 4250 3450 Oct. 12 5:00PM 1300 1200 1200 1000 900 800 700 5:15PM 1700 1300 1000 950 850 750 750 5:30PM 3000 2600 1150 950 950 800 750 Oct. 17 7:30AM 10650 10750 10500 9800 9150 7400 4600 2750 8:00AM 9750 10300 9800 7600 5850 4850 4350 3150 Oct. 22 11:30AM 162 170 120 132 39 38 35 12:00AM 5100 2700 3400 46 34 30 318 Table 10 (continued) Date 1936 Oct. 23 Tide cycle: two to three hours after low tide. Parts per million Position 8 9 10 12:30PM 261 220 190 140 100 52 30 1:00PM 3000 2850 1880 190 42 40 39 Oct. 24 1:30PM 1130 850 510 420 400 400 400 2:00PM 4950 5050 4800 3450 530 420 450 400 Oct. 25 2:30PM 5300 4750 640 550 380 340 180 3:00PM 5300 5400 5400 4900 3250 750 450 320 Oct. 26 3:30PM 220 200 200 170 150 160 180 4:OOPM 230 210 190 150 130 119 111 Nov. 4 10:45AM 82 50 37 29 21 19 14 11:00AM 1200 1230 430 100 21 18 18 11:15AM 1650 1490 460 80 33 22 27 11:30AM 2000 1900 1900 1650 650 80 19 21 Dec. 1 8:30AM 7300 6350 6050 5100 4200 3300 8:45AM 8900 8450 8700 7350 5950 4750 9:OOAM 8900 7800 7000 5000 4250 9:15AM 9250 9250 9100 6950 5650 5050 9:30AM 5750 8200 7350 5550 5350 4650 Dec. 3 10:15AM 4700 3800 3500 3000 2600 2500 2700 10:30AM 4050 3850 3§QQ 27QQ 2600 2800 10s45AM 6800 6300 5650 3950 3100 3100 2700 Table 10 (continued) Tide oyoles two to three hours after low tide. Parts per million Date Position 1936 Dec. 3 11:00AM 1 6800 2 6100 3 5900 4 4200 5 3200 6 2700 7 2600 8 9 10 Dec. 8 3:15PM 6800 5350 1450 1000 800 700 700 3:30PM 6400 4850 1600 1100 850 750 700 3:45PM 6000 6250 6400 4800 1600 900 700 4:00PM 5950 6050 5850 4200 1850 950 750 Dec. 22 1:30PM 5 5 6 5 5 5 5 1:45PM 5 5 5 5 6 6 5 2:00PM 4 5 5 5 4 5 4 2:15PM 5 5 5 3 5 4 4 Dec. 24 3:30PM 5 6 5 5 4 5 4 3:45PM 4 3 5 4 5 6 5 4:00PM 5 4 4 6 5 6 5 4:15PM 5 5 5 6 5 5 6 1937 Jan. 7 3:30PM 4 4 4 4 5 4 4 3:45PM 5 5 5 6 5 5 5 4:00PM 6 5 6 6 2 5 4 320 Table 11 Date 1936 Sept.23 1:08PM 1:12PM 1:14PM 1:16PM 1:18PM 1:20PM Tide cycle: three to four hours after low tide. Parts per million Position 1 2 9300 9200 9500 9950 10000 9800 10200 3 9500 9500 9800 9900 4 5 6 7 8 9500 9200 7700 5300 3900 9500 8600 6400 4750 3650 9700 8800 7500 5000 3700 9900 9600 7150 4750 3600 8300 9200 4600 3700 9000 6900 4200 3300 10 Oct. 17 8:30AM 9:00AM 9100 9450 8600 6450 4950 4600 4350 4000 10350 10550 11100 8000 7100 6800 6400 5250 Oct. 22 12:30PM 4350 4400 3850 85 38 31 Oct. 23 1:30PM 3400 3300 3200 2800 2250 190 58 Oct. 24 2:30PM 4400 5050 4450 4400 3450 2450 840 1340 Oct. 25 3:30PM 4950 4900 4850 3500 1850 700 500 Oct. 26 4:30PM 5:00PM 610 380 280 190 150 140 140 1170 1060 440 270 160 160 150 Nov, 4 11:45AM OOAM 12:15PM 12:30PM 2700 1500 2450 2500 2400 2400 2550 2400 2300 2000 2350 1400 2400 1800 1700 1000 1100 1200 600 49 49 200 57 53 140 160 220 600 103 400 321 Table 11 (continued) Tide cyole: three to four hours after low tide. Parts per million Date Position 1936 2 3 4 5 6 7 8 9 10 Dec. 1 10:00AM 11300 11100 11000 8900 7700 10:15AM 11700 11250 10900 10250 9250 7050 10:30AM 11450 11350 11050 10800 9100 7500 Dec. 3 11:15AM 6000 6200 4500 3800 3100 2800 11:30AM 6400 6000 5250 3850 3100 2800 Dec. 22 2:30PM 5555555 Dec. 24 4:30PM 4 5 5 5 4 5 5 Dec. 31 10:30AM 77778786 10:45AM 88877777 1937 Mar. 3 1:00PM 3500 3000 2700 2400 1500 820 360 320 322 Table 12 Date 1936 Sept.30 8:30AM Oot. 17 9:30AM Nov. 3 12:30PM Tide cycle: four to fivt? hours after low tide. Parts per million Position 23456789 15300 15700 15800 15400 14400 9650 12250 12200 12100 12300 12600 11600 11500 10200 7450 10:00AM 15200 14900 15000 15100 14400 14000 14000 13900 9400 9300 9700 9400 7300 4400 3000 2100 10 Nov. 13 8:30AM 2550 2550 7300 7000 3450 1100 750 Dec. 15 10:00AM 10:15AM 11 45 21 13 11 11 11 9 95 85 78 82 78 84 77 67 Dec. 17 11:30AM 8950 9550 9750 6500 5350 3750 1700 1200 Dec. 29 9:30AM 9:45AM 10:00AM Dec. 31 11:00AM 11:15AM 11:30AM 11:45AM 1937 Jan. 12 9:00AM 9:15AM 2500 2550 2850 700 550 270 240 230 2100 2500 2550 1850 700 550 450 330 3100 3200 1400 3100 400 500 320 360 7 7 7 7 7 8 7 8 14 17 280 280 15 16 240 140 8 7 16 36 7 6 15 28 7 7 14 16 8 7 14 14 720 770 740 540 100 330 18 15 750 780 710 630 350 40 23 16 323 Table 12 (continued) Tide oycle: four to five hours after low tide. Parts per million Date Position 1937 Jan. 14 10:00AM 1 2 1900 3 1480 * 4 730 5 510 6 133 7 62 8 42 9 10 10:15AM 2000 1900 1900 1250 440 104 51 44 10:30AM 2750 2400 1400 1100 520 130 55 47 Jan. 27 9:30AM 3 4 3 3 3 4 4 3 9:45AM 3 3 3 3 4 4 3 3 Jan. 29 11:00AM 640 640 700 600 340 160 28 9 11:15AM 290 630 420 360 140 11 14 9 Feb. 24 8:30AM 5 5 5 5 5 4 5 6 8:45AM 3 5 5 5 5 4 7 5 Mar. 3 1:15PM 3800 3200 2800 2800 2100 960 700 460 1:30PM 3700 3600 2900 3100 2550 1240 800 480 1:45PM 3950 3100 3400 3400 2300 940 530 550 2:00PM 3500 3300 3200 3300 2650 940 610 500 Mar. 10 7:30AM 8950 8100 8000 3500 1100 660 560 540 Mar. 17 12:30PM 11 13 13 19 13 11 13 13 12:45PM 13 13 11 11 13 11 11 11 1:00PM 13 11 11 9 11 15 13 11 1:15PM 13 11 13 13 17 13 13 13 MIMEOGRAPHED BULLETINS OF THE CONNECTICUT GROUND WATER SURVEY S-l The Salinity of the Connootiout River, October 1, 1934 to September 30, 1937. Part I - Text, 6 maps, 2 illustrations, 74 pages, 1938. Parts II and III - Tabulations of chlorides of samples collected from the Connecticut river at Saybrook Highway bridge, 323 pages, 1938, GW-l Record of wells, springs and ground-water levels in the towns of Bridgeport, Easton, Fairfield, Stratford and Trumbull, Connecticut. (242 pages, 5 maps, 1938.) GW-2 Record of wells, springs and ground-water levels in the towns of Branford, Chester, Clinton, Essex, Guilford, Haddam, KillingwOrth, Madison, North Branford, Old Saybrook, Saybrook and Westbrook, Connecticut. (340 pages, 12 maps, 1938.) GW-3 Record of wells, springs and ground-water levels in the towns of Bethany, East Haven, Hamden, Milford, North Haven, Orange, West Haven and Woodbridge, Connecticut. (247 pages, 8 maps, 1938.) GW-4 Record of wells, springs and ground-water lovels in tho towns of Berlin, Cromwell, Durham, Meridon, Middlefiold, Middlotown, Port¬ land and Wallingford, Connecticut. (170 pages, 8 maps, 1938.) GW-5 Record of wells, springs and ground-water levels in the towns of Colchester, East Haddam, East Hampton, East Lyme, Lyme, New London, Old Lyme and Waterford, Connecticut. (314 pages, 8 maps, 1938.) GW-6 Ground-water levels in north-central Connecticut, October 1, 1934 to December 31, 1937. (212 pages, 1938.) CONNECTICUT GROUND WATER SURVEY A PROJECT OF THE WORKS PROGRESS ADMINISTRATION THE SALINITY OF THE CONNECTICUT RIVER AT SAYBROOK HIGHWAY BRIDGE OCTOBER I, 1937 TO SEPTEMBER 30, 1938 Bulletin S-11 PREPARED BY OFFICIAL PROJECT 665-15-3-116 WORKS PROGRESS ADMINISTRATION FOR CONNECTICUT VINCENT J. SULLIVAN, administrator IN CO-OPERATION WITH AND UNDER THE DIRECTION OF THE CONNECTICUT STATE WATER COMMISSION, SPONSOR HARTFORD, CONNECTICUT JUNE 1939 Connecticut Ground Water Survey A Projoot of the Works Progrosa Administration Tho Salinity of tho Connecticut River at Saybrook Highway Bridge October 1, 1937 to September 30, 1938 Bulletin S-ll Prepared by Official Project 665-15-3-116 Works Progress Administration for Connecticut Vincent J. Sullivan, Administrator In co-operation -with and under the direction of the Connecticut State Water Commission, Sponsor Hartford, Connecticut Juno, 1939 Table of Contents Pages Introduction General Statement •••••••••••••••••. I Investigations II Summary of Work ............. II Illustration - Location of sampling section - Saybrook Highway Bridge III Tabulations of chloride determinations of samples taken at various phases of tide cycle. Table 1 - One hour before to high tide 1 Table 2 - High tide to one hour after ••••• 33 Table 3 - One to two hours after high tide 78 Table 4 - Two to three hours after high tide •••••••••••»•••••• 103 r • » Table 5 - Three to four hours after high tide 117 Table 6 - Four to five hours after high tide »oes.e....•••«.... 122 Table 7 - One hour before to low tide 124 Table 8 - Low tide to one hour after 126 Table 9 » One to two hours after low tide •••••••••••o••••••••• 130 Table 10 - Two to three hours after low tide ..... ••••••«. 135 i m * % Table 11 - Three to four hours after low tide •.»»••«.•••••••••• 143 Table 12 - Four to five hours after low tide 157 Bottom samples from Station 9A, taken at or about high tide •••« 187 He ****** **** ** * I Introduction Supplementing Bulletin SI, Parts II and III, this report presents in tabulated form the ohloride determinations of samples of water taken from the Connecticut River at the Saybroolc Highway Bridge from October 1, 1937 to September 30, 1930, inclusive. These tabulations, together with others covering different locations and periods of time, form a major part of the results of a study of the salinity of tidal streams, which has been carried on since October 1934. This study was undertaken at the suggestion of General Sanford H. Wadhams, Direotor of the Connecticut State Water Commission, as a part of the State's program of water resources studies under the Federal work pro¬ gram. The work has been a function of the Connecticut Ground 7/ator Survey, now operating as Works Progress Administration Official Project 665-15-3- 116, sponsored by the State Water Commission, The Geological Survey, United States Department of the Interior, was freely consulted regarding the field work. The Connecticut Ground Water Survey was organized as a Fodoral Emergency Relief Administration Project on October 1, 1934 by the Connecticut State Emergency Relief Commission, under sponsorship of the State Planning Board in co-operation with the State Water Commission. It continued on this basis until November 22, 1935, whon it was taken over by the Works Progress Administration. Since that time it has been operated by the Division of Professional and Service Projects of the Works Progress Administration for Connecticut as Official Projects 65-15-861, 465-15-3-26, 665-15-3-116. The Connecticut State Planning Board in co-operation with the State Water Commis¬ sion sponsored the program until July 1, 1937, when sponsorship was assumed by the State Water Commission. Yfilliam H. Broth-,Tell. Project Supervisor for the Works Progress Administration, also supervised the earlier work performed under the State Emergency Relief Commission and has been in charge of the Sponsor's program throughout. This investigation of sea-water intrusion has been facilitated by the closo co-operation among tho various agencies inter¬ ested in the problem. The work reported upon here was planned and carried out under the direc¬ tion of the State Water Commission. Mr. Brothwell was in charge of tho per¬ sonnel and facilities and co-ordina„tod the various parts of tho work. Tho engineering staff of tho State Water Commission assisted in transporting samples and in other phases of the work. Tho fiold work and collection of water samples were under the supervision of Fred W. Carter. Tho chlorido determinations were made at the Hall Laboratory of Chemistry of We si cyan University undor direct supervision of Arthur McDonald, with Professor C. R. Hoover of the Department of Chemistry of tho university acting in an ad¬ visory capacity. Tho tabulations presented in this report wore mado undor the diroct supervision of Robert Tildon. Stencilling, reproduction and as¬ sembly of the roport were in change of Winthrop E. Daniel son. Tho assistance and co-operation of Mr. V. J. Sullivan, Administrator of the Works Progress Administration, and of tho staff of tho Professional and Service Division under whoso direct supervision tho work was accomplished, is gratefully acknowledged. The co-operation of the United States Geological Survey is also greatly appreciated. II Investigations The worlc of collecting samples at the Saybrook Highway Bridge was carried on daily by crews especially trained for this work. In addition to the regular scheduled program of sampling at this point, several other types of studies were made. They arej- Special study No, 23, Samples were taken daily at 15-minute intervals during a period of from 3-g- to 5 hours from March 27, 1938, to approximately two months later. Special study No, 25, Staff gage readings were taken at 5-minute inter¬ vals at Station 9A from a half-hour before low high tide to a half-hour afterward. Six bottom samples-1- were collected at one-minute intervals, the first of whioh was taken fifteen minutes after the last high tide observation# This type of sampling was carried on from October 1, 1937, to December 20, 1937, inclusive, and from June 8, 1938, to July 5, 1938, inclusive. From July 6, 1938, to September 30, 1938, three samples (surface, mid-depth, and bottom) were taken daily instead of the six bottom samples. Special study No, 101, Samples at 3 depths (surface, mid-depth, and bottom) were taken from shore at Station 12A at time of high slack water, Special study No, 201, Same samples as in No, 101 but following low slack water at Station 12A, The purpose of the sampling at the Saybrook Highway Bridge and other designated seotions and stations on the lower Connecticut River was to in¬ vestigate the effect of height of tide and river discharge on chloride con¬ centration. This report does not include statements as to the detail of the work or methods usedj those are fully described in Bulletin SI*, Part I, Summary of Yfork 1937-1938 Approximately 36,000 samples of river water were obtained from 31 sta¬ tions at 16 sections on the lower Connecticut River, Of these, the chloride determinations of 9,800 samples are presented in this report. Several types of sampling programs, each designed to develop some spe¬ cific data, were devised and used at various times. The various programs and schedules of operations were arranged by this Survey, Detailed operat¬ ing schedules for sampling at the designated sections and stations were drawn up in the field with close attention to river conditions. Close co¬ operation between the laboratory and field units made it possible to operate with a high degree of flexibility. The samples were transported to the lab¬ oratory at frequent intervals for chloride determinations, and the results were subsequently forwarded to the Hartford office for recording and study. The following pages present thetabulations as mentioned in the fore¬ going paragraphs# "*• The tabulations of these samples are presented separately on pp 187-192 of this report, * "THE SALINITY OF THE CONNECTICUT RIVER, OCTOBER 1, 1934 to SEPTEMBER 30, 1937" Ill ay6r00k highway bridge Location of sampling section at SAYBROOK HIGHWAY BRIDGE on the Connecticut River 1 Chloride in samples collected from the Connecticut River at the Saybrook Highway Bridge, Saybrook Conn, from October 1, 1937 to September 30, 1938 Table 1 Tido cycle: one hour before to high tide Parts per million Date Position , Stations 8 9 10 11 12 1937 Nov. 16 (a) Surface 7 7:24AM Mid-depth 7 Bottom 7 (a) Surface 7 7:34AM Mid-depth 7 Bottom 9 (a) Surface 7 7:44AM Mid-depth 5 Bottom 7 Note's The sub-letters appearing after the date indicates that more than one set of samples were taken on that day and denotes the particular type of study as shown in the folloiving:- (a) Regular and Special Studies taken from Saybrook Highway Bridge. (b) Samples taken from shore at high tide. (o) Samples taken from shore at low tide, (d) Samples taken from shore at high slack water. (e) Samples taken from shore at low slack water. (f) Special Study at Persson's Dock. The time appearing before each group of samples is Eastorn Standard Time. The time shown for each group applies to station 9. When no tabulation of samples is shown in the group for station 9, the time then applies to the lowest station number of the group, (9A) Station 9A is located on a platform at a point approximately 20 feet oast and 4 foot south of station 9. (12A) Station 12A is known as "Porsson's Dock," 100 feet north of Saybrook Bridge, and approximately on lino with station 12 on the bridge. Table 1 (continued) Tide cycle: one hour before to high tide Date 1937 Nov, 16 (a) 7:54AM (a) 8:04AM (a) 8: MAM Nov. 17 (a) 8:11AM (a) 8:26AM (a) 8:41AM (a) 8:56AM Nov. 18 (a) 9:00AM (a) 9:15AM (a) 9:30AM (a) 9:45AM (a) 10:00AM Parta per million Position Stations 8 9 10 11 Surface 5 Mid-depth 7 Bottom 7 Surface 7 Mid-depth 7 Bottom 5 Surface 5 Mid-depth 7 Bottom 5 Surface 11 Mid-depth 307 Bottom 1,120 Surface 165 Mid-depth 142 Bottom 6,200 Surface 46 Mid-depth 155 Bottom 840 Surface 22 Mid-depth 2,860 Bottom 9,300 Surface 9 Mid-depth 9 Bottom 9 Surface 71 Mid-depth 460 Bottom 6,700 Surface 257 Mid-depth 2,300 Bottom 7,100 Surface 107 Mid-depth 1,020 Bottom 4,200 Surface 83 Mid-depth 109 Bottom 4,100 Table 1 (continued) Tido oyclo: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 1937 Nov. 18 (a) Surface 9 9:45PM Mid-depth 7 Bottom 7 (a) Surface 8 10:00PM Mid-depth 5 Bottom 400 (a) Surface 9 10:15PM Mid-depth 7 Bottom 11 (a) Surface 7 10:30PM Mid-depth 11 Bottom 3,480 Nov. 19 (a) Surface 21 10:00AM Mid-depth 350 Bottom 260 (a) Surface 23 10:15AM Mid-depth 240 Bottom 95 (a) Surface 25 10:30AM Mid-depth 260 Bottom 320 (a) Surface 25 10:45AM Mid-depth 320 Bottom 340 Nov. 20 (a) Surface 165 10:45AM Mid-depth 5,750 Bottom 7,550 (a) Surface 1,500 11:00AM Mid-depth 10,400 Bottom 11,150 (a) Surface 3,200 11:15AM Mid-depth 9,800 Bottom 10,750 (a) Surface 4,250 11:30AM Mid-depth 10,600 Bottom 10,750 Table 1 (continued) Tide oyclo: one hour before to high tide Date 1937 Nov. 21 (a) 11:45AM (a) 12:OOAM (a) 12:15m (a) 12:30PM Novf 22 (a) 12:45PM (a) 1:00PM (a) 1:15PM (a) 1:3.0PM Nov, 23 (a) 1:45PM (a) 2:00PM (a) 2:15PM (a) 2:30PM Parts por million Position Stations 8 9 10 11 Surfaoo 550 Mid-depth 4,900 Bottom 9,850 Surface 600 Mid-depth 7,200 Bottom 11,600 Surface 240 Mid-depth 3,200 Bottom 13,000 Surface 310 Hid-depth 9,900 Bottom 12,550 Surface 21 Mid-depth 39 Bottom 39 Surface 23 Mid-depth 39 Bottom 46 Surface 235 Mid-depth 9,300 Bottom 10,200 Surface 260 Mid-depth 2,400 Bottom 9,200 Surface 165 Mid-depth 3,700 Bottom 5,250 Surface 720 Mid-depth 5,300 Bottom 8,550 Surface 1,020 Mid-depth 3,300 Bottom 8,800 Surface 1,000 Mid-depth 5,000 Bottom 8,800 Table 1 (continued) Tide cycle: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 1937 Nov, 26 (a) Surface 1,880 4:30AM Mid-depth 1,580 3ottom 9,700 (a) Surface 1,900 4:45AM Mid-depth 9,700 Bottom 9,400 (a) Surface 1,240 5:00AM Mid-depth 9,100 Bottom 9,900 (a) Surface 2,160 5:15AM Mid-depth 9,000 Bottom 8,710 Nov. 27 (a) Surface 8,800 5:30AM Mid-depth 10,600 Bottom 11,100 (a) Surface 5,900 5:45AM Mid-depth 11,000 Bottom 11,000 (a) Surface 8,500 6:00AM Mid-depth 11,500 Bottom 11,200 (a) Surface 4,850 6:15AM Mid-depth 11,500 Bottom 11,300 Nov, 29 (a) Surface 7 7:00AM Mid-depth 7 Bottom 7 (a) Surface 7 7:15AM Mid-depth 7 Bottom 7 (a) Surface 9 7:30AM Mid-depth 7 Bottom 7 (a) Surface 9 7:45AM Mid-depth 5 Bottom 7 Table 1 (continued) Tide oyole: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 1937 Nov, 30 (a) Surface 5 7:45AM Mid-depth 3 Bottom 5 (a) Surface 7 8:00AM Mid-depth 9 Bottom 6 (a) Surface 5 8:15AM Mid-depth 5 Bottom 6 (a) Surface 5 8:30AM Mid-depth 5 Bottom 5 Dec. '.1 (a) Surface 7 8:30AM Mid-depth 5 Bottom 5 (a) Surface 7 8:45AM Mid-depth 11 Bottom 3 (a) Surface 5 9:00AH Mid-depth 3 Bottom 7 (a) Surface 3 9:15AM Mid-depth 7 Bottom 5 Dec. 2 (a) Surface 7 9:15AM Lid-depth 5 Bottom 5 (a) Surface 5 9:30AM Mid-depth 5 Bottom 3 (a) Surface 3 9:45AM Mid-depth 5 Bottom 7 (a) Surface 5 10:00AM Mid-depth Bottom .* Tablo 1 (continued) Tide oyolo: one hour before to high tide Date 1937 Deo. 3 (a) 9:45AM (a) 10:00AM (a) 10:15AI.I (a) 10:30AM Dec. 4 (a) 11:15AM (a) 11:30AM (a) 11:45AM (a) 12:00AM (a) 12:15PM Dec, 5 (a) 11:00AM (a) 11:15AM (a) 11:30AII Parts per million Position Stations 8 9 10 11 Surface 6 Mid-depth 380 Bottom 880 Surface 13 Mid-depth 580 Bottom 4,400 Surface 15 Mid-depth 3,900 Bottom 7,800 Surfaco 13 Mid-depth 71 Bottom 10,300 Surface 78 Mid-depth 1,720 Bottom 7,250 Surface 300 Liid-aepth 6,850 Bottom 9,500 Surface 220 Mid --c.epth 4,300 Bottom 8,000 Surface 125 Mid-depth 6,650 Bottom 8,600 Surfac e 290 Mid-depth 7,950 Bottom 9,350 Surface 23 Mid-depth 6,050 Bottom 8,100 Surfa.ce 210 Mid-depth 5,150 Bottom 10,150 Surface 63 Mid-depth 4,700 Bottom 10,650 Table 1 (continued) Tide cycle: one hour bofore to high tido Parte per million Date Position Stations 8 9 10 11 1937 Dec. 5 (a) Surface 93 11:45AM Mid-depth 7,300 Bottom 12,000 Dec. 6 (a) Surface 200 11:45AM Mid-depth 6,700 Bottom 10,500 (a) Surface 340 12:00AM Mid-depth 6,100 Bottom 11,700 (a) Surface 300 12:15H/I Mid-depth 4,900 Bottom 10,900 (a) Surface 360 12:30PM Mid-depth 6,300 Bottom 11,000 Dec. 7 (a) Surface 14 12:30PM Mid-depth 18 Bottom 139 (a) Surface 16 12:45PM Mid-depth 90 Bottom 127 (a) Surface 15 1:00PM Mid-depth 73 Bottom 161 (a) Surface 7 1:15PLI Mid-depth 105 Bottom 95 Dec. 8 (a) Surface 35 1:30PM Mid-depth 33 Bottom 1,280 (a) Surface 33 1:30PM Mid-depth 39 Bottom 640 (a) Surface 33 1:45PM Mid-depth 81 Bottom 1,380 Table 1 (continued) Tide cycle: one hour before to high tide Date 1937 Dec. 8 (a) 2: OOFfi Doc. 9 (a) 2:00 PL! (a) 2:15PLI (a) 2:30PM (a) 2:45PM Dec. 10 (a) 3:00PM (a) 3:15PM (a) 3:30PM (a) 3:45PM Dec. 13 (a) 5:15 AM (a) 5:30AM (a) 5:45AM Parta per million Position Stations 8 9 10 11 Surfaco 25 Mid-depth 31 Bottom 25 Surface 7 Mid-depth 7 Bottom 7 Surface 9 Mid-depth 9 Bottom 600 Surface 9 Mid-depth 11 Bottom 520 Surface 9 Mid-depth 8 Bottom 3,400 Surface 49 Mid-depth 480 Bottom 2,240 Surface 45 Mid-depth 127 Bottom 2,180 Surface 19 Mid-depth 1,060 Bottom 8,150 Surface 17 Mid-depth 5,200 Bottom 6,800 Surface 1,180 Mid-depth 11,400 Bottom 11,700 Surface 1,620 Mid-depth 11,200 Bottom 11,300 Surface 1,560 Mid-depth 10,900 Bottom 11,200 Table 1 (continued) Tide cycle: one hour boTore to high tide I'arto per million Date Position Stations 8 9 10 11 1937 Dec. 13 (a) 6:00AM Surface Mid-depth Bottom 3,540 10,700 10,600 Dec. 14 (a) 6:15AM Surface Mid-depth Bottom 920 12,900 13,200 (a) 6:30AM Surface Mid-depth Bottom 2,900 12,900 13,000 (a) 6:45AM Surface Mid-depth Bottom 6,900 13,000 10,900 (a) 7:00AM Surface Mid-depth Bottom 800 11,600 13,100 Dec. 15 (a) 7:00AM Surface Mid-depth Bottom 3,300 8,500 10,000 (a) 7:15AM Surface Mid-depth Bottom 4,600 13,800 10,000 (a) 7:30AM Surface Mid-depth Bottom 6,900 12,200 14,200 (a) 7:45AM Surface Mid-depth Bottom 4,700 13,000 14,000 (a) 8:00AM Surface Mid-depth Bottom 4,700 12,400 14,700 Dec. 16 (a) 8:00AM Surface Mid-depth Bottom 12,4-00 13,300 13,600 (a) 8:15AM Surface Mid-depth Bottom 12,200 12,700 13,200 Table 1 (continued) Tide cycle; one hour before to high Date 1937 Dec» 16 (a) 8:30AM (a) 8:45AM Dec. 17 (a) 8:45AM (a) 9: OOAi: (a) 9:15AM (a) 9:30AM Dec. 18 (a) 9:45AM (a) 10:00AM (a) 10:15AM (a) 10:30AM Dec. 20 (a) 11:30AM (a) 11:45AM Parts per million Position Stations 8 9 10 11 Surface 11,300 Mid-depth 12,500 Bottom 14,000 Surface 11,100 Mid-depth 12,200 Bottom 13,100 Surface 6,500 Mid-depth 13,500 Bottom 13,600 Surface 7,100 Mid-depth 13,500 Bottom 14,800 Surface 7,100 Mid-depth 13,200 Bottom 14,200 Surface 8,000 Mid-depth 14,200 Bottom 15,200 Surface 7,200 Mid-depth 12,500 Bottom 11,300 Surface 6,700 Mid-depth 12,400 Bottom 13,000 Surface 5,100 Mid-depth 13,400 Bottom 13,900 Surface 11,600 Mid-depth 12,900 3ottom 12,800 Surface 65 Mid-depth 5,300 Bottom 8,100 Surface 99 Hid-depth 7,100 10,150 Table 1 (continued.) Tide oyclo: ono hour before to high tide Date 1937 Dec. 20 (a) 12:00AM (a) 12:15PM Dec. 24 (a) 3:15PM (a) 3:30PM (a) 3:45PM (a) 4:00PM Dec. 28 (a) 6:35AM 7:30AM Dec, 29 7:5 SAM Dec, 30 8:36AM Dec. 31 9:15AM "arta per million Position Stations 8 9 10 11 Surface 167 Mid-depth 8,300 Bottom 11,500 Surface 171 Mid-depth 9,200 Bottom 12,600 Surface 940 Mid-depth 8,300 Bottom 8,200 Surface 720 Mid-depth 8,100 Bottom 9,500 Surface 8,400 Mid-depth 11,500 Bottom 11,800 Surface 3,400 Mid-deoth 11,200 Bottom- 11,200 Surface 2,150 11,200 5,200 Mid-depth 11,200 12,700 11,100 Bottom 12,600 11,700 8,400 Surface 8,700 Mid-depth 13,900 Bottom 14,000 Surface 2,800 2,900 1,900 Mid-depth 8,300 8,500 5,500 Bottom 8,800 9,500 8,500 Surface 2,400 2,100 2,300 Mid-depth 9,700 6,900 6,600 Bottom 10,800 9,400 10,200 Surface 9,800 5,100 1,800 Mid-depth 10,700 9,600 10,500 Bottom 11,700 10,800 10,700 Table 1 (continued) Tide oyoles one hour before to high tide Parts per million Date Position Stations 8 9 10 11 1938 Jan, 1 9:55AM Surface Mid-depth Bottom 13,100 14,700 15,600 5,900 15,400 15,200 3,800 14,700 15,100 Jan, 2 10:25AM Surface Mid-depth Bottom 9,100 14,100 14,400 9,100 13,600 13,400 8,600 8,900 13,400 Jan, 3 11:05AM Surface Mid-depth Bottom 9,000 10,200 11,900 8,700 11,200 12,500 5,100 10,900 11,900 Jon, 4 11:45AM Surfac e Mid-depth Bottom 3,100 11,200 10,900 2,700 10,600 11,700 10,300 2,600 11,800 Jan. 5 (a) 12:20PM Surface Mid-depth Bottom 3,700 13,000 12,300 (a) 12:25PM Surface Mid-depth Bottom 2,300 9,700 11,900 2,400 13,100 13,900 Jan, 6 1:05 EM Surface Mid-depth Bottom 3,300 8,900 10,200 1,100 8,200 9,800 920 8,100 10,200 Jan, 7 1:50PM Surface Mid-depth Bottom 2,020 3,500 3,950 2,240 3,550 8,300 1,720 6,000 8,400 Jan, 12 6:19AM Surface Mid-depth Bottom 5,700 12,700 12,700 4,800 12,300 13,700 6,100 11,900 13,200 Jan, 13 7:25AM Surface Mid-depth Bottom 12,500 12,300 13,600 9,000 11,000 14,000 12,300 12,100 14,050. Jan, 14 (a) 7:40AM Surface Mid-depth Bottom 6,300 13,400 14,600 (a) 7:50AM Surface Mid-depth BottonL. 6,100 15,000 14,600 Table 1 (continued) Tide oyole: one hour before to high tide Parte per million Date Position Stations 8 9 10 11 1938 Jan. 14 (a) Surface 7,800 8:00AM Mid-depth 14,100 Bottom 14,500 (a) Surface 7,200 8:10AM Mid-depth 15,100 Bottom 15,400 (a) Surface 6,500 8:20AM Mid-depth 14,900 Bottom 15,100 (a) Surface 6,400 8:30AM Mid-depth 13,900 Bottom 14,400 Jan. 15 (a) Surface 4,400 8:40AM Mid-depth 13,700 Bottom 14,150 (a) Surface 3,450 8:50AM Mid-depth 14,050 Bottom 14,400 (a) Surface 3,150 9:00AM Mid-depth 14,500 Bottom 14,750 (a) Surface 3,150 9:10AM llid-depth 14,800 Bottom 14,850 (a) Surface 3,050 9:20AM Mid-depth 14,750 Bottom 15,000 (a) Surface 3,100 9:30AM Mid-depth 15,000 Bottom 15,300 Jan. 16 (a) Surface 2,800 9:30AM Mid-depth 12,800 Bottom 12,300 (a) Surface 2,500 9:40AM Mid-depth 12,900 Bottom 12,150 Table 1 (continued) Tide cycle: one hour before to high tide Date 1938 Jan. 16 (a) 9:50AM (a) 10:00AM (a) 10:10AM (a) 10:20AM Jan. 17 (a) 10:20AM (a) 10:30AM (a) 10:40AM (a) 10:50AM (a) 11:00AM (a) 11:10AM Jan. 18 (a) 11:10AM (a) 11:20AM Prrts per million Position Stations 8 9 10 11 Surface 5,250 Mid-depth 13,200 Bottom 12,950 Surface 4,250 Mid-depth 13,600 Bottom 13,050 Surface 3,750 liid-depth 13,250 Bottom 13,500 Surface 6,850 Mid-depth 11,600 Bottom 13,300 Surface 5,600 Mid-depth 11,600 Bottom 12,200 Surface 4,900 Mid-depth 12,800 Bottom 13,600 Surface 5,400 Mid-depth 11,200 Bottom 13,350 Surface 11,900 Mid-depth 13,700 Bottom 14,250 Surface 3,800 Mid-depth 14,200 Bottom 14,000 Surface 4,150 Mid-depth 14,000 Bottom 15,100 Surface 3,700 Mid-depth 9,900 Bottom 11,600 Surface 3,200 Mid-depth 12,200 Bottom 12,600 Table 1 (continued) Tide cycles one hour before to high tide Parte per million Date Position Stations 8 9 10 11 1938 Jan, 18 (a) Surface 2,700 11:30AM Mid-depth 12,800 Bottom 13,100 (a) Surface 3,600 11:40AM Mid-depth 12,500 Bottom 13,200 (a) Surface 3,700 11:50AM Mid-depth 11,000 Bottom 14,000 (a) Surface 3,600 12:00AM Mid-depth 13,400 Bottom 14,000 Jan. 19 (a) Surface 2,750 12:00AM Mid-depth 9,700 Bottom 10,700 (a) Surface 3,850 12:15FM Mid-depth 8,100 Bottom 12,100 (a) Surface 3,800 12:30PM Mid-depth 10,200 Bottom 12,500 (a) Surface 5,200 12:45PM Mid-depth 12,700 Bottom 12,600 Jan. 20 (a) Surface 1,500 1:00PM Mid-depth 9,000 Bottom 10,200 (a) Surface 1,000 1:15PM Mid-depth 7,950 Bottom 9,950 (a) Surface 1,900 1:30PM Mid-depth 9,050 Bottom 10,800 Jan. 21 (a) Surface 1,100 1:45PM Mid-depth 9,500 Bottom 11,700 Table 1 (continued) Tide oyolo: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 12 1938 Jan. 21 (f) Surface 720 1:57PM (12A) Mid-depth 9,100 Bottom 11,500 (f) Surface 880 2:12PM (12A) Mid-depth 7,850 Bottom 9,650 (f) Surface 700 2:27PM (12A) Mid-depth 8,900 Bottom 8,150 Jan. 22 (f) Surface 970 2:54PM (12A) Mid-depth 11,800 Bottom 13,000 (f) Surface 1,060 3:09PM (12A) Mid-depth 12,100 Bottom 13,200 (f) Surface 1,030 3:24PM (12A) Mid-depth 9,700 Bottom 13,450 Jan. 26 Surface 7 7:00AM Mid-depth 6 Bottom 7 Jan. 27 (a) Surface 5 7:00AM Mid-depth 5 Bottom 5 (a) Surface 7 7:15AM Mid-depth 5 Bottom 5 (a) Surface 4 7:30AM Mid-depth 6 Bottom 5 (a) Surface 6 7:45AM Mid-depth 4 Bottom 3 Jan. 31 10:10AM Surface 11 9 Mid-depth 14 5 Bottom 14 11 6 7 6 Table 1 (continued) Tide cycle: 0110 hour before to high tide Tarts per million Date Position Stations 8 9 10 11 1938 Feb. 1 Surface 5 5 7 10:45AM Mid-depth 3 9 7 Bottom 3 7 1,550 Feb. 2 (a) Surface 9 11:00AM Mid-depth 87 Bottom 860 (a) Surface 13 11:15AM Mid-depth 4,100 Bottom 8,600 (a) Surface 11 11:30AM Mid-depth 8,000 Bottom 10,100 (a) Surface 27 11:45AM Mid-depth 2,900 Bottom 11,100 Feb. 3 (a) Surface 37 11:30AM Mid-depth 45 Bottom 34 (a) Surface 38 11:45AM Mid-depth 1,220 Bottom 3,600 (a) Surface 4-7 12:00AM Mid-depth 4,100 Bottom 4,800 (a) Surface 41 12:15PM Mid-depth 5,900 Bottom 10,350 Feb, 4 (a) Surface 4 5 7 12:35PM Mid-depth 7 4 5 Bottom 6,150 5 6 (a) Surface 5 12:15FM Mid-depth 5 Bottom 5 (a) Surface 3 12:30FM Mid-depth 5 Bottom Table 1 (continued) Tide cycle: one hour before to high tide Date 1938 Feb. 4 (a) 12:45FM (a) 1:00FM Feb. 6 2:05PM Feb. 7 3:05PM Feb. 8 4:05 Hi Feb. 16 11:30AM Feb. 18 12:54PM Feb. 19 1:35PM Feb. 20 (a) 2:15PM (a) 2:30PM (a) 2:45PM (a) 3:00PM Parte per million Position Stations 8 9 10 11 Surface 5 Mid-depth 9 Bottom 14 Surface 3 Mid-depth 9 Bottom 3,700 Surface 19 19 15 Mid-depth 880 920 3,850 Bottom 4,150 4,000 3,600 Surface 5 5 10 Mid-depth 7 7 7 Bottom 7 5 5 Surface 5 6 6 Mid-depth 3 6 7 Bottom 7 9 35 Surface 17 13 13 Mid-depth 107 1,800 520 Bottom 10,700 10,900 8,600 Surface 37 15 17 Mid-depth 440 2,900 19 Bottom 7,700 6,900 6,250 Surface 151 350 57 Mid-depth 9,600 4,800 1,700 Bottom 10,550 9,450 9,400 Surface 860 Mid-depth 10,200 Bottom 11,600 Surface 800 Mid-depth 11,000 Bottom 12,700 Surface 900 Mid-depth 12,050 Bottom 13,050 Surface 1,260 Mid-depth 12,100 Bottom 13,300 Table 1 (continued) Tide cycle: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 1938 Feb. 25 (a) 6:30AM Surface Mid-depth Bottom 2,300 11,600 13,600 (a) 6:45AM Surface Mid-depth Bottom 2,000 12,000 13,800 (a) 6:57AM Surface Mid-depth Bottom 2,100 12,600 13,700 1,100 11,900 11,600 (a) 7:00AM Surface Mid-depth Bottom 2,200 13,600 14,050 (a) 7:15AM Surface Mid-depth Bottom 2,900 13,800 12,900 1,900 13,000 13,650 Feb. 26 (a) 7:15AM Surface Mid-depth Bottom 1,800 12,000 12,300 (a) 7:30AM Surface Hid-depth Bottom 1,440 11,800 12,700 (a) 7:45AM Surface Mid-depth Bottom 1,290 12,400 12,600 (a) 7:50AM Surface Mid-depth Bottom 1,500 11,700 12,400 1,400 8,300 13,000 2,100 12,400 13,100 (a) 8;OOAM Surface Mid-depth Bottom 1,930 12,600 13,150 Feb. 27 (a) 8:00AM Surface Mid-depth Bottom 1,430 8,450 11,700 (a) 8:15AM Surface Mid-depth Bottom 1,140 11,100 11,600 Table 1 (continued) Tide cycle: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 1938 • Feb. 27 (a) 8:25AM Surface Ivlid-depth Bottom 1,900 11,000 10,800 2,050 7,850 10,000 1,050 12,650 12,900 (a) 8:30AM Surface Mid-depth Bottom 1,360 10,750 12,000 (a) 8:45AM Surface Mid-depth Bottom 1,380 11,250 12,200 Mar. 2 10:20AH Surface Mid-depth Bottom 1,700 5,900 3,900 1,900 6,900 6,000 2,100 5,700 8,500 Mar. 3 10:55AM Surface Mid-depth Bottom 1,100 10,100 13,500 1,300 9,400 12,300 800 10,500 13,500 Mar. 4 11:35AM Surface Mid-depth Bottom 1,340 10,800 13,900 1,300 7,600 14,000 1,200 9,600 9,000 Mar. 5 12:20FM Surface Mid-depth Bottom 1,300 11,700 13,200 1,200 11,200 12,800 1,340 12,400 12,600 Mar. 13 8:10AM Surface Mid-depth Bottom 1,950 13,650 11,950 Mar. 14 8:39AM Surface Mid-depth Bottom 1,000 11,100 12,750 3,850 8,700 11,850 660 8,950 11,600 Mar. 15 9:27AM Surface Mid-depth Bottom- 7,400 12,900 14,400 3,800 11,700 13,400 2,250 12,400 14,200 Mar. 16 10:13AM Surface Hid-depth Bottom 460 10,850 12,350 350 9,100 11,000 300 7,600 11,200 Mar. 17 11:00AM Surface Mid-depth Bottom 1,090 13,250 14,150 1,690 11,950 13,050 910 13,250 13,700 22 Table 1 (continued.) Tide cycle: Date :osition 8 1938 Mar. 18 Surfaoe 900 11:42AM Mid-depth 8,900 Bottom 10,100 Mar. 19 Surface 22 12:25PM Mid-depth 11,150 Bottom 12,000 Mar. 21 Surface 84 2:00PM Mid-depth 3,500 Bottom 11,300 Mar. 22 Surface 9 3:00PM Mid-depth 8,850 Bottom 10,900 one hour before to high tide 'nrtj per million Stations 9 10 11 12 1,000 9,350 9,300 700 9,450 8,850 41 4,300 10,900 21 1,250 11,000 65 1,700 10,300 34 1,300 8,150 27 230 10,300 15 28 1,150 6 1,400 9,700 9 24 3,800 11 20 10,500 10 10 440 Mar. 26 Surface 2 7 6:27AM Mid-depth 3 3 Bottom 3 4 Mar. 27 (a) Surface 1 6:45AM Mid-depth 1 Bottom 3 (a) Surface 1 7:00AM Mid-depth 1 Bottom 3 (a) Surface 1 7:15AM Hid-depth 2 Bottom 3 (a) Surface 2 7:30AM Mid-depth 1 Bottom 2 Mar. 29 (a) Surface 1 8:00AM Mid-depth 1 Bottom 4 (a) Surface 2 8:15AM Mid-depth 3 Bottom 2 (a) 8:30AM Surface Mid-depth Bottom 2 1 6 23 Table 1 (continued) Tide cycle: one hour before to high tide Parte per million Date Position Stations 8 9 10 11 12 1938 Mar. 29 (a) Surface 2 8:45AM Mid-depth 2 Bottom 3 Mar. 30 Surface 3 3 3 3 5 9:00AM Mid-depth 2 2 3 3 3 Bottom 3 4 5 4 2 Apr. 2 Surface 5 3 5 5 5 11:20AM Mid-depth 11 5 5 3 6 Bottom 7,250 6 5 12 6 Apr. 15 Surface 6 4 8 6 8 10:45AM Mid-depth 1,370 400 5 8 17 Bottom 2,950 7,650 8 6,550 16 Apr. 16 Surface 6 6 5 51 4 11:25AM Mid-depth 3,95® 360 28 7' 4 Bottom 3,350 1,270 390 1,260 10 Apr. 17 (a) Surface 4 4 4 3 9 11:55AM Mid-depth 3 3 3 4 4 Bottom 7 9 9 12 4 (a) Surface 3 4 4 4 12:25PM Mid-depth 3 4 3 4 Bottom 12 9 8 4 Apr. 23 (a) Surface 1 4:30AM Mid-depth 1 Bottom 2 (a) Surface 3 4:45AM Mid-depth 2 Bottom 2 Apr. 24 (a) Surface 1 5:30AM Mid-depth 2 Bottom 2 (a) Surface 2 5:45AM Mid-depth 2 Bottom 2 Apr, 25 Surface 6:44AM (12A) Mid-depth Bottom 1 2 3 24 Table 1 (continued) Date 1938 Position Tide cycle: one hour before to high tide Parte per million Stations Apr. 26 Surface 7:31AM (12A) Mid-depth Bottom 8 10 11 12 3 3 5 Apr, 27 (a) 7:30AM Surface Mid-depth Bottom 4 5 5 (a) 7:45AM Surface Mid-depth Bottom 4 4 5 (a) 8:00 AM Surface Mid-depth Bottom 3 3 4 (a) 8:15AM Surface Mid-depth Bottom 6 5 9 Apr, 28 (a) 8:15AM Surface Mid-depth Bottom 5 4 4 (a) 8.: 30AM Surface Mid-depth Bottom 2 3 6 (a) 8:45AM Surface Mid-depth Bottom 2 250 3,250 (a) 9:00AM Surface Mid-depth Bottom 7 185 8,050 Apr. 29 9:15AM Surface Mid-depth Bottom 16 3,000 3,550 18 2,150 5,800 15 1,950 3,850 11 23 4,100 19 34 44 Apr. 30 (a) 9:45AM Surface Mid-depth Bottom 73 960 9,150 (a) 10:00AM Surface Mid-depth Bottom 36 1,000 10,600 Table 1 (continued) Tide cycle: one hour before to high tide Date 1938 Apr. 30 (a) 10:15AM (a) 10:30AM lay 1 (a) 10:30AM (a) 10:45AM (a) 11:00AM (a) 11:15AM May 2 (a) 11:15AM (a) 11:30AM (a) 11:45AM (a) 12:00AM May 3 (a) 12:15m (a) I2:30m Parte per million Position Stations 8 9 10 11 Surface 27 Mid-depth 1,880 Bottom 11,050 Surface 113 Mid-depth 4,600 Bottom 11,600 Surface 15 Mid-depth 300 Bottom 2,500 Surface 17 Mid-depth 2,800 3ottom 4,900 Surface 45 Mid-depth 2,700 Bottom 10,350 Surface 23 Mid-depth 260 Bottom 2,750 Surface 21 Mid-depth 25 Bottom 360 Surface 23 Mid-depth 1,600 Bottom 7,700 Surface 25 Mid-depth 710 Bottom 9,200 Surface 39 Mid-depth 850 Bottom 10,250 Surface 42 Mid-depth 4,700 Bottom 9,650 Surface 47 Mid-depth 7,400 Bottom 10,300 Table 1 (continued) Tide cycle: one hour before to high tide Parta per million Date Position Stations 8 9 10 11 1938 May 3 (a) 12:45PM Surface Mid-depth Bottom 74 7,200 11,150 (a) l:OOPM Surface Mid-depth Bottom 106 9,000 10,400 May 4 1:19PM Surface Mid-depth Bottom 3,200 7,000 10,050 107 1,810 9,850 144 93 3,150 136 5,750 9,000 May 5 (a) 2:15PM Surface Mid-depth Bottom 121 8,600 10,600 (a) 2:30PM Surface Mid-depth Bottom 287 8,350 11,600 (a) 2:45PM Surface Mid-depth Bottom 260 9,650 11,900 (a) 3:00PM Surface Mid-depth Bottom 360 9,550 12,450 May 6 (a) 3:15PM Surface Mid-depth Bottom 540 5,100 6,250 (a) 3:30PM Surface Mid-depth Bottom 760 5,500 8,200 (a) 3:45PM Surface Mid-depth Bottom 1,140 6,500 8,300 (a) 4:00PM Surface Mid-depth Bottom 1,600 8,350 9,500 May 7 (a) 4:15PM Surface Mid-depth 128 6,250 7,350 Table 1 (continued) Tide cycle: one hour before to high tide Parts per million Date Position 8 9 Stations 10 11 1938 May 7 (a) 4:30PM Surface Mid-depth Bottom 420 7,200 9,200 (a) 4:45PM Surface Mid-depth Bottom 380 8,050 9,800 (a) 5:00PM Surface Mid-depth Bottom 1,110 8,950 9,400 May 8 (a) 4:45AM Surface Mid-depth Bottom 1,550 10,150 9,850 (a) 5:00AM Surface Mid-depth Bottom 3,250 10,500 10,000 (a) 5:15AM Surface Mid-depth Bottom 2,000 9,700 10,150 (a) 5:30AM Surface Mid-depth Bottom 2,300 11,250 12,800 May 9 (a) 5:45AM Surface Mid-depth Bottom 950 7,750 7,200 (a) 6:00AM Surface Mid-depth Bottom 2,500 8,600 10,000 (a) 6:15AM Surface Mid-depth Bottom 2,700 8,600 11,050 (a) 6:30AM Surface Mid-depth Bottom 1,830 9; 800 11,750 May 10 6:51AM Surface Mid-depth 770 8,750 9,750 7,800 10,650 9,100 630 700 6,100 3,550 7,350 9,450 28 Table 1 (continued) Tide cycle: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 12 1938 May 11 (a) 7:47AM Surface Mid-depth Surface 580 9,300 10,400 (a) 8:42AM Surface Mid-depth Bottom 1,240 11,250 12,450 2,340 11,650 11,550 1,010 12,000 12,700 810 1,300 8,350 May 12 8:30AM Surface Mid-depth Bottom 2,150 7,350 8,650 1,600 7,850 8,100 900 7,350 10,750 650 3,000 11,350 700 750 1,150 May 13 (a) 9:00AM Surface Mid-depth Bottom 810 4,300 8,650 (a) 9:15AM Surface Mid-depth Bottom 830 7,000 6,050 (a) 9:30AM Surface Mid-depth Bottom 1,020 6,950 5,000 (a) 9:45AM Surface Mid-depth Bottom 1,900 8,050 11,550 May 14 10:15AM Surface Mid-depth Bottom 680 10,550 11,800 560 8,550 9,700 250 2,290 6,350 May 15 10:57AM Surface Mid-depth Bottom 1,190 6,400 13,900 1,220 3,550 13,100 1,440 8,650 12,750 May 16 11:40AM Surface Mid-depth Bottom 310 10,950 12,300 280 10,500 11,200 400 3,300 11,150 May 17 12:25PM Surface Mid-depth Bottom 9 330 9,700 12 51 3,750 14 12 1,600 May 18 12:51PM Surface Mid-depth Rn-H-.nm 8 18 7,900 10 12 11 9 8 9 7 7 15 Table 1 (continued) Tide cycle: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 1938 May 19 2:05PM Surface Mid-depth Bottom 22 4,550 11,550 16 3,650 10,750 10 2,500 11,100 May 20 2:50PM Surface Mid-depth Bottom 72 2,800 7,500 155 3,900 5,700 39 4,150 9,350 May 21 3:45PM Surface Mid-depth Bottom 132 12,400 13,500 520 11,000 12,600 139 10,700 13,550 May 22 3:40AM Surface Mid-depth Bottom 1,050 9,750 11,500 2,700 8,050 10,950 1,120 10,600 10,900 May 23 4:40AM Surface Mid-depth Bottom 1,040 10,300 12,100 440 10,800 11,550 320 10,350 12,550 May 24 5:34AM Surface Mid-depth Bottom 1,210 7,800 8,900 2,440 6,000 9,000 370 5,850 8,150 May 25 6:26AM Surface Mid-depth Bottom 29 25 6,900 25 2,540 6,4-50 27 22 5,800 May 26 7:16AM Surface Mid-depth Bottom 21 3,250 10,700 32 2,150 7,300 26 136 5,650 May 27 8:05AM Surface Mid-depth Bottom 79 4,000 9,450 21 6,350 6,900 24 4,800 7,900 May 28 8:55AM Surface Mid-depth Bottom 26 3,450 12,450 101 7,150 11,650 26 2,150 11,000 May 29 9:45AM Surface Mid-depth Bottom 129 11,350 12,500 800 10,900 11,850 58 4,250 11,450 May 30 10:40AM Surface Mid-depth Bottom 760 12,900 13,700 800 10,200 9,200 470 10,400 12,900 30 Table 1 (continued) Tide oycle: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 12 1938 May 31 Surface 1,000 1,110 1,030 11:29AM Mid-depth 10,150 10,250 9,050 Bottom 11,000 12,800 12,600 June 1 Surface 1,940 1,790 1,740 12:25PM Mid-depth 12,850 11,550 12,550 Bottom 13,200 13,000 12,850 June 2 Surface 6,400 5,950 2,250 1:23PM Mid-depth 12,500 11,150 9,700 Bottom 13,900 11,050 11,450 June 3 Surface 3,850 5,500 2,200 2:20PM Mid-depth 14,100 12,900 13,250 Bottom 14,400 13,650 4,200 June 4 Surface 6,150 6,350 3,500 3:25PM Mid-depth 14,250 11,300 11,900 Bottom 14,900 12,450 12,100 June 5 Surface 8,300 8,750 4,100 4:27PM Mid-depth 13,600 12,750 13,250 Bottom 13,550 13,800 14,250 June 6 Surface 2,800 5:09AM Mid-depth 11,800 Bottom 13,700 June 7 Surface 2,650 6:10AM Mid-depth 3,400 Bottom 10,850 July 7 Surface 3,000 4,350 5:50AM Mid-depth 12,200 8,500 Bottom 12,500 9,450 July "8 Surface 2,250 2,500 6:50AM Mid-depth 11,850 6,950 Bottom 12,400 11,400 July 9 Surfac e 3,000 2,300 7:35AM Mid-depth 12,400 8,250 Bottom 12,600 11,850 July 21 Surface 910 3,650 960 4:20PM Mid-depth 12,150 10,050 10,000 Bottom 12,750 11,950 12,300 31 Table 1 (continued) Tide cycle: one hour before to high tide Parts per million Date Position Stations 8 9 10 11 12 1938 July 22 5:56m Surface Mid-depth Bottom 14 13 6,050 July 23 5:50AM Surface Mid-depth Bottom 9 10 10 10 8 20 11 12 32 July 24 6:50AM Surface Mid-depth Bottom 7 7 6 5 6 12 5 7 13 July 26 8:35AM Surface Mid-depth Bottom 5 7 7 6 6 14 Aug. 5 6:21AM (12A) Surface Mid-depth Bottom 17 24 940 Aug. 6 6:30AM Surface Mid-depth Bottom 86 11,250 11,850 Aug. 7 7:15AM Surface Mid-depth Bottom 200 10,800 11,350 Aug. 9 8:35AM Surface Mid-depth Bottom 3,350 12,950 13,300 6,200 11,500 11,850 Aug. 10 9:15AM Surface Mid-depth Bottom 740 6,250 12,350 Aug. 12 9:50AM Surface Mid-depth Bottom 108 11,600 12,050 247 2,900 10,050 53 285 10,300 Sept, 3 5:00AM Surface Mid-depth Bottom 4,150 13,150 Sept, 8 8:45AM Surface liid-depth Bottom 8,100 15,000 15,200 Table 1 (continued) Tide cycle: one hour before to high tide Date 1938 Sept.19 5:15AL Parts >or million Position Stations 8 9 10 11 Surface 580 Mid-depth 10,850 Bottom 11,750 33 Table 2 Date 1S37 Kov. 16 (a) 8: 24AK (a) 8:34AI.1 (a) (a) 8: 54AK 9:04ftl.' (a) (a) 9:14AM (a) 9:24AK :rov. 17 (a) 9: 11AK (a) 9: 2 6 All 9: 41AK (a) (a) 9: 5SAII 10:11AM (a) Position Surface Kid-depth Bottom Surface Mid-depth Bottom Surface Kid-depth Bottom Surface Kid-depth Bottom Surface Kid-depth Bottom Surface Mid-depth Bottom Surface Kid-depth Bottom Surface Kid-depth Bottom Surface Kid-depth Bottom Surface Kid-depth Bottom Surface Kid-depth Bottom Surface Kid-depth "R nf-fnm Tide cycle: hi ,h tide to one hour after farta per million Stations 8 9 10 11 12 9 13 15 5 11 15 7 7 11 7 11 9 6 11 11 6 11 9 9 21 8,700 9 1,000 5,4-00 7 19 8,000 5 43 6,900 7 21 6,100 34 Table 2 (continued) Date Position Tide cyclo: hi ,h tide to one hour after Parts per million Stations 8 9 10 11 12 1937 I'.ov, 18 (a) 10:15 Al-I 10: 30AL (a) 10: 45AL (a) (a) 11: 00AI' (a) 10:45PM (a) 11:00H: 11:15PII (a) (a) 11: 30FT1 Nov. 19 (a) 11:00AI.I 11:15AL (a) 11:50AI (a) 11:45 AI * (a) Surface 1" id-depth tottorn Surface I .id-depth Bottom Su.rface Mid-depth 3otton Surface Lid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface . liid-deptli Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom- Surface i'id-dep th Bottom Surface Lid-depth Bottom 83 5,100 6,800 101 12,000 8,000 840 2,500 4,000 87 2,100 4,500 5 400 5,100 9 27 9,800 9 1,160 10,350 19 2,700 11,100 23 340 460 145 9,200 8,000 143 5,400 10,000 137 5,000 6,300 35 Table 2 (continued) Date 1937 Nov. 20 (a) 11:45AI: (a) 12:00AI.1 (a) 12:15PL (a) 12:30PN lov. 22 (a) 1: 45P! I (a) 2:00P1: 2:15PI • (a) (a) 2:30FLI Nov. 23 (a) 2:45PN (a) 3: OOPI" (a) 3:15R: Nov. 26 (a) 5:30 i£' Position Surface Hid-depth Bottom Surface Liid-depth Bottom Surface L~ id-depth Bottom I'id-depth Bottom Surface liid-depth Bottom Surface I." id-depth B ottom Surface Kid-depth Bottom Surface Liid-depth Bottom Surface I'id-dep th Bottom Surface Liid-depth Bottom Surface I lid-depth Bottom Surface i lid-depth Bottom Tide cycle: hif.h tide to one hour after Parts per million Stations 8 9 10 11 12 3,800 11,350 11,200 730 9,650 15,000 730 11,450 12,450 910 11,200 13,100 960 6,700 10,300 280 7,500 9,600 300 4,900 9,100 300 2,000 11,500 360 10,000 10,700 7,200 3,600 10,600 380 4,800 11,200 1,600 8,200 10,300 36 lable 2 (continued) Date Position Ticlo cycle: hi,;h tide to one her after Parts per million Stations 8 9 10 11 12 1957 Nov. 26 (a) 5:45AL (a) 6:00AI1 (a) 6:15 All (a) 6:30AL Nov. 27 (a) 6:30 AL 6:45AL (a) 7: OOAL (a) (a) 7:15AN Nov. 29 (a) 8: OOAi.: (a) 8:15AL (a) C:30AN (a) 8: 45AI-: Surface I£id-depth Bottom Surface Mid-depth Bottom Surface Lid-depth Bottom Surface Lid-cepth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-dentil Surface Lid-depth Bottom Surface Lid-depth B o tt om Surface Lid-depth B nt.t ran 10,000 0,000 10,800 400 900 6,500 420 460 10,000 500 390 5,800 9,700 11,700 11,800 7,850 11,700 11,500 10,150 11,600 12,000 11,300 11,300 11,700 7 7 7 7 7 " 9 9 9 11 9 9 9 37 Table 2 (continued) Date 1937 Lov. 29 (a) DSOOA:: i:ov. 30 (a) 8:4 5 Ail (a) 9:00A1: 9:15 AM (a) (a) 9: oOAi: Dec. 1 (a) 9:30AL Position Surface Lid-depth 3otton Surface Lid-depth Bottom Surface Mid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Tide cycle: hi(;h tide to one hour after Parts p-er million Stations 8 9 10 11 12 9 15 9 7 7 5 5 5 7 5 5 11 5 5 (a) Surface 5 9:4 SAL Lid-depth 5 Bottom 5 (a) Surface 5 10:OOAL Lid-depth 5 Bottom ' 5 (a) Surface 3 10:15AL Lid-depth 5 Bottom 5 Dec. 2 (a) Surface 3 10:15 All Kid-depth 5 Bottom 5 (a) Surface 3 10:30AL Lid-depth 5 Bottom 5 (a) Surface 5 10:45AL lid-depth 3 Bottom 5 38 Table 2 (continued) Date Position Tide cycle: high tide to one hour after Parts per million Stations 10 11 12 1937 Dec, 2 (a) 11:00A1I Dec. 3 (a) 10:45AM (a) 11:00AM (a) 11:15AM (a) 11:30AM (a) 11:45AM Dec. 4 (a) 12:30PM (a) 12:45PM (a) 1:00PM (a) 1:15PM (a) 1:30PM Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom 7 5 5 15 87 9,300 27 2,500 12,200 49 3,600 12,300 41 2,900 12,600 45 6,200 12,200 271 8,850 8,300 282 9,400 9,350 288 8,700 9,350 300 8,000 9,200 300 8,550 9,550 Dec, 5 (a) 12:00AM Surface Mid-depth Bottom 146 9,900 11,700 Table 2 (continued) Tide cyole: high tide to one hour aftor Date 1937 Dec. 5 (a) 12:15PM (a) 12:30PM (a) 12:45PM (a) 1:00PM Dec. 6 (a) 12:45PM (a) 1:00PM (a) 1:15PM (a) 1:30PM Dec. 7 (a) 1:30PM (a) 1:45PM (a) 2:00PM (a) 2:15PM Porta per million Position Stations 8 9 10 11 Surface 119 Mid-depth 9,300 Bottom 12,800 Surface 133 Mid-depth 8,700 Bottom 13,200 Surface 240 Mid-depth 5,900 Bottom 13,400 Surface 241 Mid-depth 6,200 Bottom 13,350 Surface 440 Mid-depth 7,700 Bottom 12,500 Surface 560 Mid-dc.pth 8,200 Bottom 12,600 Surface 860 Mid-depth 9,000 Bottom 13,300 Surface 680 Mid-depth 11,100 Bottom 13,700 Surface 15 Mid-depth 19 Bottom 89 Surface 19 Mid-depth 111 Bottom 137 Surface 17 Mid-depth 29 Bottom 1,080 Surface 17 Mid-depth 45 Bottom 163 10 Table 2 (continued) Date 1937 Dec. 7 (a) 2: 30 PI.:. Dec. 8 (a) 2:15FT (a) 2: 50 PL (a) 2:45FL 3:00H: (a) (a) 3:15P1.: Dec. 9 (a) 3: OOHi (a) 3:15 PL (a) 3: 3OF.. (a) 3:45PL' Dec. 10 (a) 4:00?:: (a) 4: 15?? Position Surface Lid-depth 3ott cm Surface Lid-depth B ott on Surface Lid-deoth x 3otton Surface L id-depth 3otton Surface Lid-depth 3 ott om Su.rface Lid-depth Bottom Surface Lid-denth x Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface I-id-depth 3 ott on Surface Lid-depth Dot ton- Surf ace i id-depth Bottom Tide cycle: hirh tide to one hour after Parts per million Stations 8 9 10 11 12 29 9 23 25 55 380 27 03 300 25 145 360 25 25 280 25 101 200 8 8 71 8 1,500 17 3,100 9 7 11 7 2,100 C, 300 41 Table 2 (continued) Date Position Tide cycle: hi,"h tide to ono hour after Parts per million Stations 10 11 12 1937 Dec. 10 (a) 4:30PLI (a) 4:45PL Dec. 13 (a) 6:15AIC (a) S: 30 id:' (a) 6-.45AL 7:00AI' (a) (a) 7:15 m Dec. 14 (a) 7:15AI.: 7:30 All (a) (a) 7:45AL (a) 8: OOAL Dec, 15 (a) C: 15Ai: Surface Lid-depth Bottom Surface Lid-depth Bottom Surface if id-depth Bottom Surface I id-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth B ott on Surface Lid-depth Bottom Surface Lid-depth Bottom 15 181 1,600 123 224 2,800 3,500 10,700 10,600 4,500 10,300 11,500 4,400 10,900 12,200 7,400 10,500 11,900 7,600 11,500 10,900 1,000 8,700 11,700 8,300 11,400 10,800 5,700 11,000 11,800 7,100 12,100 12,600 7,600 14,600 14,800 42 Table 2 (continued) Date 1937 Dec. 15 (a) 5: 3OA!: (a) 8:45AT (a) 9: OOAL Dec. 16 (a) 9: OOAL (a) 9:15A1" 9:50AM (a) (a) 9:45AI.! Dec. 17 (a) 9:45AL 10:OOAL (a) 10:15 A!,! (a) 10:30AL (a) Position Surface Mid-depth Bottom Surface Mid-depth Bottom. Surface Mid-depth Bottom Surface Lid-depth Bottom Surface Mid-depth Bottom Surface Lid-depth Bottom Surface Llid-depth Bottom Surface Lid-depth Bottom Surface I'.id-depbh Bottom Surface Liid-depth Bottom Surface Llid-depth Bottom Tide cycle: high tide to one hour after l'arba per million Stations 8 9 10 11 12 6,500 12,600 14,700 5,300 13,000 13,500 4,700 13,700 13,000 12,900 14,000 14,100 12,500 13,600 13,600 13,300 14,300 14,700 13,000 14,100 14,250 0,000 15,900 14,750 1,000 9,000 14,750 6,500 14,300 14,700 6,800 15,500 14,800 Dec. 18 (a) 10:45AL Surface Fid-depth Bott om 13,300 14,400 14,200 Table 2 (continued) Tide cyclo: hi-h tide to one hour after Parte tier million Date Position Stations 8 9 10 11 12 1937 Dec. 18 (a) 11:OOAL Surface i'id-depth Bottom 12,200 14,200 13,900 (a) 11:15AL Surface Lid-depth Bottom 11,100 12,600 13,900 (a) 11:30AL Surface Lid-depth Bottom 9,500 13,100 14,000 Dec. 20 (a) 12: 3 OR: Surface Lid-depth Bottom 135 10,800 12,600 (a) 12:45PL Surface Lid-depth Bottom 260 11,600 12,900 (a) 1: OOPIi Surface Lid-depth Bottom 210 1,260 13,300 (a) 1:15PI Surface I, id-depth Bottom- 200 1,800 13,000 Dec. 21 (d) 1: 20Pi"(l2A) Surface Lid--depth Bottom 115 10,200 10,400 (a) 1:40 Pi.. Surface Lid-depth "Jottom 1,220 13,500 13,800 137 11,000 15,200 239 8,200 13,900 Dec. 22 (d) 2:10H:(12A) Surface Lid-depth Bottom • 65 340 5,400 Dec. 23 (d) 3:10PL(12A) Surface Lid-depth Bottom 11 13 11 (a) 3:25FL Surface Lid-depth Bottom 13 117 940 11 480 1,420 13 7 2,240 Table 2 (continued) Tide oyclo: YL'h tide to one hour after ' t.rba nor million Date Position Stations 6 9 10 11 12 1937 Dec. 24 (a) Surface 9,500 4-.15PL if id-depth 11,000 Bottom 11,600 (a) Surface 2,600 4:30PI- Jlid-depth 11,800 Bottom 11,700 (a) Surface 12,000 4:45PL Lid-depth 5,000 Bottom 10,700 (a) Surface 11,600 5:00PL Lid-depth 11,500 Bottom 4,800 Dec. 28 (a) Surface 12,150 13,150 7:3 5 AT. Lid-depth 13,550 13,500 Bottom 13,500 13,500 (a) Surface 14,250 9,900 8:35 AL Lid-depth 13,200 14,600 Bottom 14,100 13,200 Dec. 29 Surface 500 8:20AL(l2A) Lid-depth 8,900 Bottom 9,300 Dec, 30 Surface 3,700 9:01AL(12A) Lid-depth 10,900 Bottom 10,500 Dec, 31 Surface 2,700 9:40AL(12A) Lid-depth 10,900 Bottom 12,300 1938 Jan, 1 Surface 3,800 10:19AL(12A) Lid-depth 3,700 Bottom 11,700 Jan, 2 Surface 5,000 10: 56AIi(12—) l.id-dopth 10,700 Bottbm 11,600 45 Table 2 (continued) Tide cyolo: hi h tide to one hour after furl,!! per Million Date Position Stations C 9 10 11 12 1938 J 2LD. • 3 Surface 5,000 11: 34AL (12A) Aid-depth 10,900 3ottor.i 11,100 Jan. 4 Surface 2,900 1: 20PLi( 12A) Lid-denth 8,400 Bottom 10,700 Jan. 5 Surface 3,500 12:49FL(l2A) Lid-depth 10,000 Bottom 10,800 Jan. 6 Surface 1,080 1: 30Pi (12A) Lid-depth 9,600 Bottom 9,900 Jan. 7 Surface 980 2:15Fi.( 12A) Lid-depth 8,650 Bottom 9,400 Jon. 12 Surface 1,300 6:44AL:(l2A) Lid-depth 10,100 Bottom 10,600 Jan. 13 Surface 2,600 7:4HAL(l2A) Lid-depth 12,700 Bottom 14,900 Jan. 14 (a) Surface 8,200 8:40AK Lid-depth IB,200 Bottom 13,100 (a) Surface 10,000 8:50AI: Lid-depth 14,500 Bottom 15,700 (a) Surface 9,700 9: 00A1 I "id-depth 15,700 Bottom 15,500 (a) Surface 5,200 9:10 Ah Lid-depth 15,000 Bottom 15,700 (a) Surface 10,200 9:20AL Lid-depth 15,600 Bottom 15,600 Table 2 (continued) Tide cycle*. hl^h tide to one hour after Parts nor million Date Position Stations e 9 10 11 12 1938 Jan, 14 (a) Surface 14,300 9:30AI1 Hid-depth 14,100 Bottom 15,600 (a) Surface 7,000 9:40 AU Hid-depth 14,800 Bottom 14,000 Jon. 15 (a) Surface 3,900 9:40AH I'id-depth 14,300 Bottom 15,300 (a) Surface 3,000 9: 50 AH Hid-depth 15,100 Bottom 15,450 (a) Surface 2,000 10: OOAL . .id-depth 15,250 Bottom 15,400 (a) Surface 2,750 10: 10AI Hid-depth 15,350 Bottom 15,400 (a) Surface 2,950 10:20AI: I,id-depth 14,900 Bottom 15,600 (a) Surface 3,350 10:30AH Hid-depth 14,000 Bottom 15,600 (a) Surface 2,400 10:40AH Lid-depth 15,050 Bottom 13,400 Jan. 16 (a) Surface 6,850 10:30AH Hid-depth 14,000 Bottom 14,700 (a) Surface 4,350 10: 40AH I. id-depth 14,350 Bottom 14,400 (a) 3urfa.ee 6,250 10:50AL Hid-depth 14,250 Bottom 14,600 Table 2 (continued) Tide cycle: high tide to one hour after Parts per million Date Position Stations G 9 10 11 12 1938 Jan. 16 (a) Surface 6,150 11:00Ah Lid-depth 14,600 Bottom 14,550 (a) Surface 4,000 11:10AK Lid-depth 14,350 Bottom 14,550 (a) Surface 2,100 11: 20AU Lid-depth 15,750 Bottom 14,050 Jan. 17 (a) Surface 8,300 11: 20AL . id-depth 14,100 Bottom 15,400 (a) Surface 9,300 11: 30AI. hid-depth 14,100 Bottom 14,300 (a) Surface 7,800 11:40/0 j--id-depth 1—1 V* o o Bottom 14,900 (a) Surface 7,400 11:50/0" 1 -id-depth 14,500 Bottom 15,300 (a) Surface 9,300 12:00/iI.I Lid-depth 15,200 Bottom 15,600 (a) Surface 5,750 12:10PL1 Lid-depth 14,300 Bottom 14,700 (a) Surface 5,300 12: 2 OR.'. Lid-depth 13,700 Bottom 15,200 Jan. 18 (a) Surface 4,200 12:10PL1 ?. id-depth 15,500 Bottom 13,900 (a) Surface 6,600 12: 20H - 1 .id-depth 13,750 3ottom 14,300 48 lable 2 (continued.) Date Position '.lido cyclo: hif.h tide to one hour after Parts per nillion Stations 8 9 10 11 12 1938 Jan. 10 (a) 12: 30 Pi : (a) 12: 40 PL (a) 12: 50 PI (a) 1: OOPI (a) 1:10E Jan. IS (a) 1:00FL (a) 1:15HI (a) 1:30FL (a) 1: 45F' Jan. 20 (a) 2: OOFL (a) 2:15FL (a) Surface I .id-clepth Bottom Surface I. id-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface I.id-dep th Bottom Surface I id-depth Bottom Surface I id-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom 2: 30 FL Surface Lid-depth Bottom Surface Lid-depth Bottom 14 Id .5 14- 14 o 13 11- 3 13 14 2 13 14 3 12 12 0 (-J 12 13 1 10 15 2 Cl 13 1 10 12 1 S 11 10 300 000 600 -100 200 000 500 600 300 500 700 100 700 400 100 000 200 200 800 500 700 650 700 900 250 900 800 200 750 550 300 350 750 900 400 050 49 Table 2 (continued) Tido oyclo: hi.nh tide to one hour after Parts per million Date Position Stations 1938 C 9 10 11 12 Jan. 20 (a) Surface 1,100 2:45 PI:! Iid-depth 10,000 Bottom 11,550 • Jan, 21 Surface 1,600 2:42PL(l2A) I id-depth 6,600 Bottom 11,800 Jan, 22 Surface 930 3:39FL'(l2A) Lid-depth 12,350 Bottom 13,400 Jan. 26 (a) Surface 8 7:15AL Lid-depth 5 Bottom 6 (a) Surface 9 11dOAL Lid-depth 6 Bottom 6 (a) Surface 8 7:4 SAL Lid-depth 6 Bottom 7 (a) Surface 7 8:00AM Lid-depth 8 Bottom 6 Jan, 27 (a) Surface 5 8:OOAL Llid-depth 5 Bottom 7 (a) Surface 5 6:15AL Lid-depth 3 Bottom 5 (a) Surface 5 8:30 All Llid-depth 5 Bottom 7 (a) Surface 3 8: 4SAL Liid-depth 5 Bottom 5 (a) 9: OOAI. Surface Lid-depth B ottorn 5 3 5 50 Table 2 (continued) Date Position Tido cycle: hijjh tide to one hour after Parts per million Stations 8 9 10 11 12 1938 Jan. 31 10:31AM(12A) Surface Mid- Bottom M id-depth 8 18 12 Feb. 1 11:10Ar(l2A) Feb. 2 (a) 12: OOALi 12:15PM (a) (a) 12:30 Hi (a) 12: 45PM Feb. 3 (a) 12:30PM 12: 45PM (a) 1:00PM (a) 1:15PM (a) (a) 1: 30 PL'. Feb. 4 (d) 1:05?I;(12A) Surface Mid-depth Bottom Surface Mid-depth Bottom Surface I lid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface ; lid-depth Bottom Surface Mid-depth Bottom 9 3,900 11,650 7 5,300 11,900 6 6,000 12,400 7 2,700 12,200 32 6,500 5,550 38 3,300 7,000 31 3,250 8,200 37 4,550 8,400 10 500 8,700 5 5 5 5 5 7 51 Table 2 (continued.) Date Position Tide cycle: high tide to one hour after Parte per million Stations 8 9 10 11 12 1938 Feb. 4 (a) 1:15 PL (a) 1:30 PL (a) 1: 4 5 PL (a) 2: OOPLI Feb. 6 2;39FK(12A) Feb. 7 3:37PM(12A) Surface Lid-depth Bottom Surface Lid-depth Bottom Surface I .'id-depth Bottom Surface I id-depth Bottom Surface I'id-depth Bottom Surface Lid-depth Bottom 6 1,780 7,500 10 1,610 10,000 5 170 10,300 6 420 6,000 23 25 1,060 7 7 17 Feb. 8 5:05PL Feb.11 (d) 7:26AM(12A) (a) 7: 4 SAL Feb.12 8: 24A!'(l2A) Feb.13 10:1SAL(12A) Feb.14 (d) 10:08AI'( 12A) Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom 7 11 10,250 14 11,700 15,400 5 12 9,550 6 5,000 12,850 6 7 11 9 3,400 7,300 9 158 1,790 20 2,500 8,400 1,420 5,500 10,800 240 7,700 12,450 52 Table 2 (continued Tide cycle: hi li tide to one hour after Farts per million Date Position Stations 8 9 10 11 12 1938 Feb. 14 (a) 10: 20 Aid Surface Lid-depth Bottom 187 13,000 13,600 260 11,800 13,000 1,180 10,100 13,600 (a) 10:50/11 Surface Lid-depth Bottom 4-40 12,700 14,000 220 12,800 13,800 1,220 12,600 14,000 Feb. 15 (a) 11: 20 Aid Surface Lid-depth Bottom 79 12,900 13,700 141 12,500 13,200 129 11,700 13,850 (a) 11:50AI.I Surface Lid-depth Bottom 157 13,600 13,700 195 13,300 13,750 99 12,300 13,900 (d) 10: 58Ai :( 12A) Surface Lid-depth B ott on 124 5,000 9,750 Feb. 16 11:44AII(12A) Surface Lid-depth Bottom 15 93 4,300 Feb. 18 1:19R-(12A) Surface Lid-depth Bottom 21 45 1,040 Feb. 19 2:09P."(l2A) Surface I lid-depth Bottom 39 1,650 7,550 Feb. 20(a) 3: 15PL Surface Lid-depth Bottom 1,140 13,050 13,800 (a) o:30FL Surface Lid-depth Bottom 1,650 12,900 14,100 (a) 3:45FL Surface Lid-depth B ott on 980 13,550 14,300 (a) 4: OOH1 Surface Lid-depth U r>+-.+■. nm 880 13,900 1 •, ?nn Table 2 (continued) Tide cycle: hi.h tide to one hour after Fur la per million Date Position Stations 8 9 10 11 12 1938 Feb. 25 (d) Surface 760 7:22AM(12A) Mid-depth 9,900 Bottom 13,900 (a) Surface 1,500 7:30AM Mid-depth 13,000 Bottom 14,000 (a) Surface 1,300 7:45AM Mid-depth 12,700 Bottom 14,100 (a) Surface 1,320 E:00AM Mid-depth 13,200 Bottom 13,900 (a) Surface 840 £:15AM Mid-denth 13,900 Bottom 13,900 Feb. 26 (d) Surface 480 8:09A11(12A) i. id-denth 5,800 Bottom 13,000 (a) Surface 1,350 8: 15^iLi Lid-depth 12,950 Bottom 13,300 (a) Surface 1,290 8:30AM Mid-depth 12,650 Bottom 13,600 (a) Surface 1,050 8:45AM Mid-depth 12,900 Bottom 13,900 (a) Surface 850 9:00AM Mid-depth 13,400 Bottom 12,700 (a) Surface 810 9:15.J" I id-depth 13,200 Bottom 13,800 Feb. 27 (d) Surface 980 8:50AM(12A) Mid-depth 7,200 Bottom 12,400 Table 2 (continued) Tide cycle: hi h tide to one hour after Parta par million Date Position Stations 8 9 10 11 12 1938 Feb. 27 (a) 9:00 AL Surface Fid-depth Bottom 1,660 12,000 12,500 (a) 9:15AK Surface Fid-depth Bottom 1,380 11,500 12,800 (a) 9:30AL" Surface Fid-depth Bottom 1,380 12,550 13,200 (a) 9: 45AL" . Surface Fid-depth Bottom 1,470 12,650 13,400 Feb. 28 (d) 9: 2SAl '(l2A) Surface Lid-depth Bottom 760 1,080 10,900 (a) 9:45A11 Surface I. id-depth Bottom 420 11,650 11,950 820 10,700 11,700 840 9,750 12,200 Far. 1 (d) 10: 05AL.( 12A) Surface Fid-depth Bottom 5,500 7,200 10,500 (a) 10: 20a:,; Surface Lid-depth Bottom 3,100 11,400 10,700 4,600 11,500 11,600 6,300 11,200 11,800 Far. 2 10:44A11 (12A) Surface Lid-depth Bottom 2,550 3,050 5,800 Far, 3 11: 20.-J-: (12A) Surface 1 id-depth Bottom 420 420 1,400 Far. 4 12:COAL (12a) Surface Lid-depth Bottom 900 6,900 10,500 '• ar, 5 12:4211 (12A) Surface ; :id-depth Bottom 1,700 6,500 11,200 55 Table 2 (continued) Tide cycle: Date Position 8 1938 bar. 6 (a) 1:33PM Surface Mid-depth Bottom 56 340 5,800 (d) 1:58PM (12A) Surface M'd-depth Bottom Ear. 7 (d) 2:50PM (12A) Surface Mid-depth Bottom (a) 3:05PM Surface liid-depth Bottom 54 900 6,950 Mar. 11 (a) 6:14AM Surface Hid-depth Bottom 4,000 11,650 14,150 (d) 6:39AM (12A) Surface Mid-depth Bottom Mar. 12 (a) 7:20AM Surface Mid-depth Bottom 1,850 13,150 13,600 (d) 7:43AM (12a) Surface Mld-dcpth Bottom Mar. 13 (a) 8:15AM Surface Mid-depth Bottom 1,400 13,700 14,050 (d) 8:41AM (12A) Surface Mid-depth Bottom Mar, 14 9:04AM (12A) Surface Mad-depth Bottom Mar. 15 9:52AM (12A) Surface 1 id-depth Bottom hi,h tide to one hour after Parts per million Stations 9 10 11 12 131 79 720 260 8,800 5,600 85 380 4,200 107 390 4,700 98 153 2,500 4,750 7,400 7,300 7,500 4,900 11,100 11,450 13,600 12,050 1,040 6,150 11,550 3,650 2,850 11,900 11,950 12,900 13,000 3,650 10,850 13,450 2,100 15,000 13,850 2,600 10,800 13,750 760 7,450 12,750 1,450 11,750 14,650 56 Table 2 (continued) Tido cycle: hi,h tide to one hour after Parts per million Date Position Stations 8 9 10 11 12 1938 liar. 16 Surface 340 10: 5CAT (12A) Lid-depth 3,600 Bottom 12,650 Lar. 17 Surface 690 11:2 3A1 (12A) Lid-depth 4,700 Bottom 12,700 Lar. 18 Surface 330 12:07PH (12A) Lid-depth 1,900 Bottom 7,450 liar. 19 Surface 25 12: 53R& (12A) Lid-depth 260 Bottom 6,600 lar. 20 Surface 240 1: 39PI' (12A) Lid-depth 990 Bottom 9,350 liar. 21 Surface 46 2: 3 IPX.: (12A) Lid-depth 1,360 Bottom 1,000 i £.r a 22 Surface 9 3: 27PL (12A) Lid-depth 109 Bottom 4,200 far. 26 Surface 2 S: 432!'. (12A) Lid-depth 2 Bottom 3 liar. 27 Surface 2 7: 4522-. I id-depth 1 Bottom 1 (a) Surface 1 8:0022.': i. id-depth 1 Bottom 1 (a) Surface 1 8:15 A" Lid-depth 2 Bottom 2 (a) Surface 2 8: 3021 1 id-depth 3 Bottom 2 57 Table 2 (continued) Tide cycle: h i. h t i i ie to one hour after Purl • 3 nor million Date Position Stations 8 9 10 11 12 1D38 r.ar. 28 (d) Surface 3 6: MAI. : (12A) Lid-depth 2 Bottom 1 (a) Surface 3 1 81 1 3 E:40AI ...id-depth 2 1 1 1 1 Bottom 3 2 2 4 19 liar. 29 (a) Surface 2 9: OOAi Lid-depth 5 Bottom 3 (a) Surface 2 9:1522. Lid-depth 3 Botton 2 (a) Surface 2 9:3012 I. id-depth 3 Bottom P7 O (a) Surface 2 9:4522. Lid-depth 2 Bottom 3 (a) Surface 3 10:0022 Lid-depth 2 Bottom 2 ' ar. 30 Surface 3 0 : 3522: (122.) I id-depth 2 Bottom 3 Lar. 31 (d) Surface 6 10:1422.: (1220 7 id-depth 4 Bottom 6 (a) Surface 3 5 3 4 3 10:3522 I id-depth 29 8 3 3 3 Bottom 8,750 8,150 101 2,020 3 2uir. 1 (d) Surface 5 10 : 5422 (12A) Lid-depth 5 Bottom 8 (a) Surface ,1 o 8 9 5 11: 1522. 1 id-depth o /-> 0 4 4 9 Bottom 10,650 8,200 410 4,200 9 Table 2 (continued) Tide cyclo: hi;;,h tide to one hour after Parts per million Date Position Stations 8 9 10 11 12 1938 Apr. 2 Surface 5 11: 3 8 All (12A) !i id-depth 5 Boitom 7 Apr. 3 (d) Surface 4 12: 23PI1.: (12A) Aid-depth 6 Bottom 7 (a) Surface 7 3 4 4 6 12:45PM Lid-depth 31 400 3 6 5 Bottom 5,550 1,500 78 2,050 10 Apr. 4 (d) Surface 9 " 1: 14PI1 (12A) Lid-depth 8 Bottom 9 (a) Surface 4 4 4 6 9 l:35Ri I ."id-depth 6 5 5 5 7 Bott era 8,050 6,150 5 4,700 9 Apr. 5 (d) Surface 5 2:11 PL (12A) Lid-depth 7 Bottom 11 (a) Surface o K/ 3 4 11 6 2; 3 5 PL'" 1 "id-depth 20 225 5 7 7 Bottom 6,600 7,000 5 2,500 19 Apr. 6 (d) Surface 7 3-. 15Pi: (12A) Kidrdepth 10 Bottom 10 (a) Surface 6 500 5 9 8 3:40Pi. Lid-depth 12 22 8 G 8 Bottom 5,450 10,600 9,250 11,800 8 Apr. 7 (d) Surface 21 4: 20P1 (12A) Lid-depth 54 Bottom 10,300 (a) Surface 29 17 15 15 10 4:45R: Lid-depth 2,300 2,200 4,100 1,080 13 Bottom 12,500 12,100 3,750 6,950 2,650 Apr. 11 (d) 7:5411.: (12A) Surface I: id-depth Bottom 15 55 5,600 59 Table 2 (continued) Tide cycle; hi;h tido to one hour alter Pur to per rail lion Date Position Stations 8 9 10 11 12 1938 Apr. 11 (a) Surface 14 14 26 14 15 8:15 All Kid-depth 7,200 4,600 650 1,040 99 Bottom 11,900 11,500 10,650 4,650 2,750 Apr. 12 (d) Surface 11 8:47AI" (12,.) Lid-depth 13 Bottom 14 (a) Surface 11 11 11 9 11 9:15A7' Lid-depth 2,750 1,650 334- 770 13 Bottom 10,750 10,400 8,550 950 13 Apr. 13 (d) Surface 15 9:5SAi: (12A) Ad-depth 25 Bottom 440 (a) Surface 12 13 13 11 13 9: 55AI: I-"id-depth 9,950 4,350 510 3,250 40 Bottom 11,050 0,150 3,900 9,100 700 Apr. 14 (d) Surface 17 10; 17__ (12,0 I. id-depth 18 Bottom 90 (a) Surface 11 9 12 11 27 10:10 A. Lid-depth 208 18 43 12 29 Bottom 10,850 10,650 9,700 5,150 63 ;.pr. 15 Surface 7 11: OLA. ' (12A) I. id-depth 13 Bottom 17 .pr. 16 Surface 4 11:44^'" (12A) Kid-depth 4 Bottom 7 Apr. 17 (a) Surface 2 12:30P: id-depth 3 Bottom 7 (a) Surface 3 3 3 5 1: 25E Lid-depth 3 4 3 5 Bottom 2,200 3 640 3 ~pr. 16 (d) 1:12F. (12A) Surface Kid-depth Bottom 7 6 5 Table 2 (continued) Tide cycle:hinh tide to one hour after Parts nor Million Date Position 1938 Apr. 18 (a) 1: 3 5 PL : Apr. 19 (d) Surface 2:02PI(12A) I id-depth Bottom 10 Surface 9 7 3 Kid-depth 5 r? o 1 Bottom 3 3 7 w 11 (a) Surface 3 2 2 2: 25E. Kid-depth 5 2 9 Bottom 9 2 S Apr. 20 (d) Surface 2:56PM (12A) Kid-depth (a) 3-.20PL Apr. 23 (a) " 5: OOAJ: 5:15 A (a) (a) 5: 3 OA : 4 5 A 6:00; (a) (a) Apr, 24 (a) 6: OOAh" 6:15A (a) Bottom Surface Kid-depth Botton Surface l,:id-depth Bottom Surface Kid-depth Bottom Surface : .id-depth Bott an Surface Kid-depth Bottom Surface 1 id-deoth ■L Bottom Surface K. id-depth Bottcm Surface Kid-depth 3 ott am 2 6 15 3 3 4 2 2 r? 0 2 1 2 2 3 2 2 2 3 3 9 2 4 2 2 1 2 2 1 4 61 Table 2 (continued) Tide cycle: hi h tide to one hour after A.-.rts per million Date Position Stations 8 9 10 11 12 1938 Apr. 24 (a) Surface 5 G: 3 OA" I id-depth 2 Bottom 3 (a) Surface 2 6: 45.il. ; .id-depth 2 Bottom 2 (a) Surfo.ce 6 7:00 A] I 1 "id-depth 2 Bottom 2 Apr. 25 Surface 3 8 3 A 3 * 7:10AI Aid-depth 2 2 2 3 3 Bottom 2 2 2 o u 2 Apr. 26 Surface 2 2 1 2 2 7: 5 5 A: I id-depth 3 1 2 2 2 Bottom 5 5 3 3 4 Apr. 27 (a) Surface 4 8: 3Oil: i "id-depth 4 Bottom 1,040 (a) Surface 5 8:45Ai i'id-depth 8 Bottom 7,300 (a) Surface 9: OOA1 . . id-depth 9 Bottom 3 (a) Surface 9,200 9:15A3: Aid-death 6 Bottom 5 Apr. 28 (a) Surface 4 9:15AA: Aid-death 15 Bottom 9,750 (a) Surface q 9:30AII : "id-depth 51 Bottom 9,800 (a) Surface 9 r . a a; kJ * 'JJ. — Lid-depth 19 10,050 62 Table 2 (continued) Tide cycle; hi h tide jo quo hour after Prior; por .million Date Position stations 8 9 10 11 12 1938 Apr. 28 (a) Surfaco 8 10:00.4. Aid-depth 6 Bottom 10,450 Apr. 29 Surface 32 9:46x1" (12A) Aid-depth 320 Bottom 6,950 Apr. 30 (a) Surface 57 10:45AA Aid-depth 6,650 Bottom 11,850 (a) Surface 39 11:00.x;. Aid-depth 11,400 Bottom 12,000 (a) Surface 138 11:15AK Aid-depth 10,050 Bottom 12,650 (a) Surface 37 11:30 Aid-depth 7,450 Bottom 12,800 I'".ay 1 (a) Surface 15 11:30AA Aid-depth 170 3otton 6,350 (a) Surface 18 11:45A!' I id-denth C, 600 Bottom 11,850 (a) Surface 18 12:OOAA Aid-depth 6,450 Bottom 12,150 lay 1 (a) Surface 13 12:15PA Aid-depth 7,200 Bottom 12,250 Aay 2 (a) Surface 130 12:15PA Lid-depth 6,700 Bottom 10,450 (a) surface 67 12:30PS. 1.id-depth 4,950 Bnt.t.nn 10,900 Table 2 (continued.) Date Position Tide cycle: hiph tide to ono hour after I'-rtfl per million btations 8 9 10 11 12 1938 Hay 2 (a) 12:45PM (a) 1:00PK May 3 (a) 1:15PM (a) 1:30R: (a) 1:45PM (a) 2:00PM May 4 (a) 2:19PM (a) 3:04PM May 5 (a) 3:15PM (a) 3: 30PI (a) 3:45FU (a) 4: OOP!..7 Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Surfo.ce Mid-depth Bottom Surface i id-depth Bottom Surface Mid-depth Bottom Surfo.ce Mid-depth Bottom Mid-depth Bottom Surface Mid-depth Bottom Surface Lid-depth Bottom 3,350 C, 550 12,700 93 7,600 11,400 151 6,800 11,650 118 11,100 12,000 133 11,900 12,300 140 12,450 12,600 174 9,850 12,700 230 9,500 11,800 300 12,700 12,850 350 12,950 13,100 350 13,050 13,450 370 12,950 13,650 280 9,250 12,100 250 7,450 12,500 260 310 3,850 650 1,060 10,900 Table 2 (continued) Tide cycle: hi h tide to on© hour after Farts per Million Date Position Stations 8 9 10 11 1930 iay 6 (a) Surface 1,780 4:15 Pi. I "id-depth 10,200 Bottom 9,650 (a) Surface 1,450 4:3 OK. Lid-depth 9,550 Bottom 9,750 (a) Surface 2,000 4:45PI. Lid-depth 10,200 Bottom 11,250 (a) Surface 3, S00 5: OOP!: . id-depth 10,800 Bottom 10,000 Lay 7 (a) Surface 360 5:15K. Lid-depth 10,200 Bottom 10,250 (a) Surface 270 5:30PL Lid-depth 9,450 Bottom 10,050 (a) Surface 250 5:45PL Lid-depth 9, 2o0 Bottom 10,000 (a) Surface 670 6:OOPL Lid-depth 9,950 Bottom 10,400 Lay 8 (a) Surface 5,950 5: 45LL Lid-depth 11,050 Bottom 10*800 (a) Surface 2,150 6:00;i.: Lid-depth 11,150 Bottom 11,600 (a) Surface 1,650 6:15AL Lid-depth 10,800 Bottom 11,200 (a) Surface 2,600 6:3071: Lid-depth 11,000 Tin-h-hrim 15,650 6 C Table 2 (continued) Tide cycle: hi, h tide to one hour after ]arts per nillion Date Position Stations 8 9 10 11 12 1938 liny 9 (a) Surface 1,650 6:45 Mid-depth 10,600 Bottom 12,400 (a) Surface 2,750 7:00AI1 !'id-depth 11,600 Bottom 12,450 (a) Surface 4,650 7:15 AT LI id-depth 12,500 Bottom lo,400 (a) Surface 6,050 7:30id' Mid-depth 11,650 Bottom 12,000 hay 10 (a) Surface 9,300 1,200 7:51AII Lid-depth 12,200 10,300 Bottom 13,050 12,r>00 (a) Surface C;36AL Lid-depth Bottom hay 11 Surface 750 1,110 9:42.11 _ lid-depth 12,500 12,400 Bottom 13,400 13,450 liny 12 Surface 5,000 5,000 9:30AL iiid-depth 7,850 8,100 Bottom" 10,750 12,900 hay 13 Surface 1,800 10:00.1b Lid-depth 8,900 Bottom 12,100 (a) Surface 1,950 10:1552 Lid-depth 9,650 Bottom 12,750 (a) Surface 1,230 10:30. j. Lid-depth 11,100 Bottom 13,200 (a) Surface 1,920 10:45AL bid-depth 11,750 Bottom 15,250 2,700 1,640 940 12,100 10,900 4,200 12,500 13,000 10,050 1,000 4,450 12,650 1,300 1,300 1,700 12,650 13,000 3,650 13,500 14,000 12,100 1,150 950 750 7,450 7,300 6,700 13,300 13,200 13,500 66 Table 2 (continued) Tide cycle: hi, h tide to one hour after Bai ts per million Date Position Stations e 9 10 11 12 1938 I Cay 14 10: 40AI.C (12A) Surface Lid-depth Bottom 590 8,300 9,800 hay 15 11:22.11" (12A) Surface Lid-depth Bottom 1,700 1,950 9,700 Lay 16 12:05PIC (12A) Surface Lid-depth 3ottom 202 2,840 9,000 ICay 17 12:50?i: (12A) Surface Lid-depth Bottom 11 16 21 Lay 18 (a) 1:51PL Surface Lid-depth Bottom 27 450 11,350 2-1- 8 12 51 61a 15 10,350 7,550 4,000 19 20 24 (a) 2: 36PL Surface Lid-depth Bottom 43 82 330 Lay 19 2: 23ri: (12A) Surface I "id-depth Bottom 32 300 2,920 ICay 20 5:15PIC (12A) Surface Lid-depth Bottom 155 940 6,650 i.ay 21 4: 05E. (12A) Surface -.id-depth Bottom 74 5,350 11,500 Lay 22 4:11PL (12A) Surface Lid-depth Bottom 320 820 8,750 Lay 23 5:06AI. (12A) Surfo.ce I id-depth Bottom 230 2,480 10,450 Lay 24 5:59.1- (12A) Surface aid-depth Bottom 294 450 6,800 67 Table 2 (continued) Tide cycle: hi h >iuo to one hour after Parts per million Date Position Stations 6 9 10 11 12 1938 Hay 25 Surface 17 6:51.11: (12A) Lid-depth 12 Bottom 15 Hay 26 Surface 22 7:41J (l2A) I id-depth 1,060 Bottom 3,850 May 27 Surface 1,930 8:31.2' (12A) 1 "id-depth 19 Bottom 5,700 May 28 Surface 64 9:20/22 (12A) Lib-depth 2,300 Bottom- 7,950 Lay 29 Surface 53 10:11 AI2 (12A) Mid-depth 4,250 Bottom 10,500 May 30 Surface 3*0 11:01222 (12A) Mid-depth 6,000 Bottom 12,500 Lay 31 Surface 770 11: 5412.: (l2A) I .id-depth 2,750 Bottom 9,100 June 1 Surface 1,660 12: 51P1J (1220 Lid-depth 9,100 Bottom 12,600 June 2 Surface 1,900 1:48PL (12/0 Mid-depth 5,700 Bottom 10,900 June 3 Surface 2,650 2:4SPL (1210 Mid-depth 5,100 Bottom- 11,000 June 4 Surface 3,050 3:51PK (12A) Lid-depth 11,550 Bottom 12,800 June 5 Surface 4,050 4:52PL (12A) Mid-depth 13,150 l a Ann 68 Table 2 (c outin ued) Tide cycle: hi h tide lhuto to one hour after per Million Date Position 8 9 Stations 10 11 1938 June 6 5; 14, 5! Surface I.'id-dep oh Dotton 3,000 11,350 12,400 6,300 11,700 12,900 June 7 6:15.5. Surface ''id-depth Dotton 2,850 12,700 13,100 3,300 10,1-00 12,500 July 8 8:41.5 (9,5) Surface i id-depth Dotton 2,300 11,400 13,750 July 10 10:11.5 (9A) Su.rfo.ce I Ad-depth 3ottom 3,750 12,200 14,400 July 11 10: 5 Li. (9A) Surface ' .id-depth Boteon 5,100 14,100 14,350 July 12 11: 3655' (9A) Surface . .id-depth Dotton 5,250 14,200 14,850 July 13 12:06 Ph (9A) Surface hid—depth Dotton 2,050 14,450 14,500 July 14 12: 01 PI: (SA) Surface 1 id-depth Dotton 1,850 11,400 13,400 July 15 1: 21P1: (9A) Surface I lid-depth B ott on 1,350 10,600 13,500 July 16 2:01 . (9A) Surface I id-depth Dotton 1,450 13,250 13,950 July 17 2: 4lit. (9A) Surface J lid-depth 2,000 14,000 12 Dotton July 1C 3:16?: (9A) Surface j .id-depth 6,850 15,200 15,400 69 T al; 1 e 2 (c ont inue d) Date tide cyclo: hi h tiue to one hour after fi.i'tg nor nillion Position Stations e o 10 li 12 1938 July 19 4: OS PL (OA) July 20 4: 2GPl.i (9A) July 21 5:31?: (9A) July 23 7: 3 LA July 24 (d) 7:4 5 Ah (12A) (a) 8: OLA (9A) July 25 (d) 8:49.2" (12A) (a) 9: 06.A (GA) ourrace : 'id-depth -J o ^ v on ourface I "id-depth Bottom Surface x '.id-depth Bottom ■ t d-den~1 ^ ourrace id-ceoi Bottom Surface Lid- opl Bottom our f ace ouriace Lid-depth 4,150 14,500 11,800 1,100 C,950 12,700 1,100 7,400 12,700 11 10 13 7 9 9 9 5 6 July 26 (d) 9:3 5.A (12..) (a) 10:15.2 (9.0 July 27 (d) 10:302x15 (12A) (a) 11: 05 A!" ' ( 9 A) •Surface i id-depth Bottom Surface Lid-depth Surface Lid-depth Bottom Surface 3'"id-depth a ^ 5 5 14 25 110 10,550 6 7 10 15 500 70 Table 2 (continued) Tide cycle: hi. h tide to one hour after Ihu If ">er /'.illion Date Position 10 11 1908 July 28 (d) 11: 2lhJ ". (12;.) (a) 12:OOP! (9-0 July 29 (d) 12:11?] (12.0 (a) 12:55PI (?;0 July 30 (d) 1:04FL (12.x) (a) 1:50?]. (9A) July 31 (d) 1: 58?i ■ (12ix) (a) 2:40?] (9,0 -,u . 1(d) 2:56?]] (I2.l) (a) 3:30?1 (C.'O ,;u._. 2 (d) 3:53?.: (12?) (a) 4: 25E.. (9n) Surface Pin-depth tot torn. Surface 'id -depth J otto, a Surface ]id-depth 1st ton Surface id-depth Jo ticca Surface Lid-depth Jottora Surface ] id-depth Jottora Surface Lid-depth Jotton Surface uuriace ; .id-Low th Jottoia ouri ace id-depth Jottora Surface id-clepth Jottora. Surface I id-depth Jottora 1,482 10,200 12,100 480 9,450 13,450 550 3,500 14,000 35 A 10,500 263 730 10,700 40 3,850 12,350 12 52 1,250 9,300 300 4,300 11,170 104 2,800 10,700 9 11 15 1,010 4,100 50 490 9,150 71 Table 2 (continued) Tide cyclo: hi'h tide to 0110 hour after darts per . d 11ion date Position Stations 1938 U' 9 10 11 12 lug. -3 (d) Surface 83 4:52PI5 (12..) aid-depth 850 Bottom 10,000 (a) Surface 77 5:15PL" (CLi) 1 Id-ac^th l,dJG Bottom 12,150 .ug. 4 (d) Surface 10 5:20.\I.r (12.0 Bid-depth 11 Bottom 14 yo (a) ourface S:05?B (5—) aid-depth 1,950 cotton 10,900 ..v a. 5 Surface G ?: 5555 (9.0 1 id-dep bh 29 Bottom C,000 -.ug. 6 (d) Surface 41 7:21.5. (125.) ..id-depth 1,600 Bottom 8,950 , Surface 78 8:155.' (S..) id-depth 4,500 Bottom 11,550 . 7 (d) Surface 400 8:1255' (125.) ..id-depth 6,650 Bottom 9,700 Surface 600 t: 505J1 (95.) If id-depth 5, C 50 Bottom 12,100 .' . 8 (d) Surface 460 C: 5555. (125.) - id-depth 6,750 Bottom 11,000 Surface 930 9:4055 (9..) . id-depth 11,350 13,150 -.ur. 9 (d) 9:36.5 (12.5) Surface id-depth U /-.H- -t- 610 7,800 11,000 72 Table 2 (continued) Tide cycle: hi h bide to one hour after larta per Million Date Position stations G G 10 11 12 1938 ..ug, 9 Surface 1,750 10;30;J" (OA) Lid-depth 7,300 Bottom 13,900 ;-ug. 10 (d) Surface G60 10:11AL! (I2f0 Lid-depth 4,950 Dotton 12,500 (a) Surface 1,790 10:55 Ai.: (9.0 Lid-depth 9,100 Dotton 12,100 .lug, 11 (d) Surface 1,550 10: 47.1" (123.) ! id-depth 6,800 Bottom 9,150 (a) Surface 1,280 11:00.1- (91-) Lid-depth 9,250 Dotton 11,950 .-ug,. 12 (d) Surface 95 11:24AL (12.1) Lid-depth 3,160 Dotton 7,950 (a) Surface 530 12:0011.; (9A) i id-depth 7,300 Dotton 12,450 .lug. 13 (d) Surface 410 12:00111 (12.1) Lid-depth 7,850 Bottom 12,350 (a) Surface 670 12:5GPL (9m.) Lid-dopth 7,300 uotton 13,250 .lug. 14 (d) Surface 1,020 12:38.1". (12.1) j.;id-depth 6,450 Dotton 9,850 (a) Surface .1,200 1: 20L (9.1) L id-depth 12,500 Bottom 14,300 ..ug. 15 (d) Surface 2,350 1:16PL (12.1) j;id-depth 11,000 -a** 13,750 73 Table 2 (continued) Tide cycle: hi h tide to one hour after hM-ta per rail lion Date Position Stations 8 9 10 11 12 1938 Aug. 15 (a) Surface 2,450 2:00PA Aid-depth 15,500 Bottom 14,400 ..up. 16 (d) .Surface 2,110 1: 59Hi (12.1) Aid-depth 5,400 Bottom 11,550 (a) Surface 6,150 2:51 PI-.' Aid-depth 12,300 Bottom 14,450 ..ug. 17 (d) Surface 1,360 2:5lPk (12.0 Aid-depth 12,100 Bottom 13,700 (a) Surface 3,100 3:05PA Aid-depth 13,450 Bottom 13,400 Aug. 18 (d) Surface 1,330 3:46PL (12A) Aid-depth 10,400 Bottom 11,650 (a) Surface 2,400 4:2514 Aid-depth 14,000 Bottom 14,500 ..ug. 19 (d) Surface 2,250 4:48PI. (12.'.) Aid-depth 12,150 Bottom 14,250 (a) Surface 2,200 5:35PI i id-depth 14,800 Bottom 14,650 i.up. 20 (d) Surface 2,350 5: 53PA (12..) i id-depth 12,800 Bottom 14,350 (a) Surface 2,550 6:45PI Aid-depth 14,050 Bottom 14,450 ..ug, 21 (d) Surface 1,030 6:53.'s] (12A) Aid-depth 3,850 Bottom 6,250 74 Table 2 (continued) Tide cycles hi h Side to one hour after j'urtn por million Date Position Stations 8 9 10 11 12 1938 Aug. 21 (a) Surface 1,600 7:05A1. Aid-depth 12,450 Bottom 13,850 Aug. 22 (d) Surface 1,480 7:54AT (12A) lid-depth 9,400 Bottom 13,300 (a) 3urfo.ee 2,350 6:25AT fid-depth 13,250 Bottom 14,400 Aug. 23 (d) Surface 2,500 8:50AI: (12A) fid-depth 11,200 Bottom 14,450 (a) Surface 3*050 9:20AI: (9A) I id-depth 13,000 Bottom 13,100 Aug. 24 (d) Surface 3,250 9:42.iT. (123.) lid-depth 7,350 3ottom 14,100 (a) Surface 4,150 9:45/13 (93.) I id-depth 12,150 Bottom 14,350 Aug, 25 (d) Surface 3,700 10:33/1: (12A) fid-depth 13,900 Bottom 15,000 (a) Surface 4,300 ll:05Af (9A) fid-depth 13,400 Bottom 15,400 Aug. 26 (d) Surface 4,100 11:23,1 (12/.) lid-depth 14,150 Bottom 15,150 (a) Surface 5,750 11:50/1" (9A) fid-depth 14,650 Bottom 15,850 Aug. 27 (d) surface 4,430 12:10PI (12/.) lid-depth 14,650 1/,250 75 Table 2 (continued) Date Tide cycle: hifth tido to one hour after .rts par million Position 3tat ions G 9 10 11 12 1938 hup. 27 (a) Surface 7, 050 12: 35P1. (9.-) I. id-depth 14, 650 Dotton 15, 750 28 (d) Surface 12: 59PL (121.) : .id-depth Bottom (a) Surface 3 700 1: 3 OPT; (91.) I., id-depth O O 800 Bottom 11 700 po j.i.U'. « Ui\s Surface 12 050 2:05PL (91.) fid-depth Id¬ 450 Bottom le 750 -u=.. 50 Surface 5 250 5: OOP. (91.) I id-depth 15 400 Bottom 15 750 -a-:, 31 Surface 4 S50 3:55?; (9-1) I id-depth 14 250 Bottom 14 650 Sept. 1 Stir face l 900 4: 50 R (91.) ...id-depth 10 450 Bottom J. 2 600 Scot. 2 Surface 3 650 5: 4 1R (91.) I. id-depth 11 500 Bottom 11 900 Sept. 3 Surface 0 750 6:40.u (9-1) i id-depth 7 550 Bobtorn 13 400 Sept. 4 Surface 3 050 7:45.1! (91.) i. id-depth 0 500 Bottom 13 100 Sept. 5 Surface /i 'X 200 C:40ij; (91.) J id-depth 12 400 Bottom- 14 450 Seot. 7 Surf ace 12 500 9: 55.1 (9-1) I id-depth 15 800 Bottom 14 700 2,il0 12,100 13,500 Tabic 2 (continued) Tide cycle: hi"h lido to one hour aft T n bo nor million Date Position Stations 8 9 10 11 1936 Sept, 8 Surface 6,950 10:3SAL' : (DA) I'lid-depth 12,700 Bottom 14,700 Sept. 9 Surface 5,200 11:0512 (OA) I id-denth 14,900 Bottom 13,400 Sept.10 Surface 8,850 11: 3012' (OA) Aid-depth 13,700 3ottom 14,900 Sept.11 Surface 9,750 12:05 PL- (SA) :-id-deuth 14,500 Bottom 15,550 Sept. 12 Surface 11,650 12: 20 PI- (9-0 Lid-depth 15,650 Bottom 16,150 Sept.13 (9A) Surface 10,400 1:10.2 1 id-depth 14,350 Bottom 1j,500 Sent.14 Surface 13,800 2:00E' ' (9-0 I id-depth 16,050 Bottom 16,200 Sept.15 Surface 4,500 3:15 R: (OA) Aid-depth 14,200 Bottom 14,800 Sept.16 Surface 2,000 o o U-i (OA) i id-depth 13,450 Bottom J.5,250 Sept.17 Surface 2,500 5:30?; (OA) 5 id-depth 11,000 Bottom 15,500 Sept.18 (a) Surface 3,900 5: 55-5 (OA) i id-depth 3,600 Bottom 12,850 (a) 6:05.-A Surface I . id-d^pth n n'j-1- nm 700 12,900 11,300 2,450 12,100 1 t, 750 77 Table 2 (continued) Date lido cycle: hi'/'i tide to one hour after i'-mts por million Position Stations 8 9 10 11 12 1938 Sept.19 5: 14.: (d) (12-1) (a) 6: 50ill' (9.1) Sept.20 7:14;: 6:10;j (d) (12.1) (a) (9.1) Surface I id-depth Bottom Surface Iid-dcoth Surface . id-depth Bottom Surface Lid-depth Bottom 1,250 4,050 11,550 14 90 173 9,000 24 24 50 Scot.21 8:06.1 (12.1) ourrace I .id-depth Bottom 5 6 Sept.22 9:06.1 Sept.26 !: OOF!'. Surface (l2.l) Lid-depth Bottom Surface 1 'id-depth (S-.) 10 10 6 Sept.28 2:15 Pi (9-0 ouri aco . .id-depth Bottom 17 3 6 Sept.29 2:45E" (9-1) Surface i -id-depth .•ocuon o 4 A Sept.30 4:15?; (S-l) burx ace I .id-depth Bottom 28 240 1,040 Table 3 Tide cycle: 1-2 hours after high tide harts per million Date Position Stations 8 9 10 11 1937 Nov. 16 (a) Surface 7 9:34AK Mid-depth 5 Bottom 11 (a) Surface 7 9:44AM Mid-depth 7 Bottom 9 (a) Surface 7 9:54AM Mid-depth 9 Bottom 7 (a) Surface 7 10:04AM Mid-depth 7 Bottom 5 (a) Surface 7 10:14AM Mid-depth 5 Bottom 7 (a) Surface 5 10:24AM Mid-depth 5 Bottom 5 Nov. 17 (a) Surface 13 10:26AM Mid-depth 33 Bottom 69 (a) Surface 11 10:41AM Mid-depth- 105 Bottom 163 (a) Surface 11 10:5 6 Alii Mid-depth 121 Bottom- 280 (a) Surface 19 11:11AM Mid-depth 81 Bottom- 137 (a) Surface 117 11:26AM Mid-depth 77 Bottom 121 Nov. 18 (a) Surface 91 11:15AM Mid-depth 6,950 Bottom 7,600 Table 3 (continued) Tide cycle: 1-2 hours after high tide Date 1937 Nov. 18 (a) 11:30AM (a) 11:45AM (a) 12:OOAM (a) 11:45PM (a) 12:00PM Nov. ID (a) 12:15AM (a) 12:00AM (a) 12:15PM (a) 12:30PM (a) 12:45PM Nov. 20 (a) 12:45PM (a) 1:00PM Parts per million Position Stations 8 9 10 11 Surface 5,300 Mid-depth 230 Bottom 6,700 Surface 55 Mid-depth 1,060 Bottom 1,480 Surface 5,800 Mid-depth 1,640 Bottom 2,360 Surface 17 Mid-depth 93 Bottom 5,300 Surface 11 Mid-depth 61 Bottom 5,100 Surface 36 Mid-depth 820 Bottom 1,500 Surface 113 Mid-depth 8,000 Bottom 8,500 Surface 1,380 Mid-depth 3,800 Bottom 9,300 Surface 93 Mid-depth 9,000 Bottom 8,400 Surface 89 Mid-depth 8,100 Bottom 7,300 Surface 990 Mid-depth 12,700 Bottom 13,100 Surface 900 Mid-depth 4,400 Bottom 12,350 Table 3 (continued) Tide cycle: 1-2 hours after high tide Date 1937 Nov. 20 (a) 1:15PM (a) 1:30PM Nov. 21 (a) 12:45PM (a) 1:00PM (a) 1:15PM (a) 1:30PM Nov. 22 (a) 2:45PM (a) 3:00PM Nov. 23 (a) 3:30PM (a) 3:45PM (a) 4:00PM (a) 4:15PM Parts por million Position Stations 8 9 10 11 Surface 1,110 Mid-depth 9,900 Bottom 11,950 Surface 360 Mid-depth 2,150 Bottom 10,200 Surface 290 Mid-depth 3,600 Bottom 13,050 Surface 590 Mid-depth 4,950 Bottom 13,500 Surface 610 Mid-depth 5,400 Bottom 13,4-50 Surface 230 Mid-depth 1,020 Bottom 13,400 Surface 320 Mid-depth 8,300 Bottom 9,400 Surface 320 Mid-depth 7,800 Bottom 9,700 Surface 360 Mid-depth 2,900 Bottom- 10,700 Surface 1,460 Mid-depth 3,500 Bottom 10,80Q Surface 780 Mid-depth 3,400 Bottom 10,800 Surface 760 Mid-depth 5,900 Bottom 11,100 Table 3 (continued) Tide cycles 1-2 hours after high tide Date 1937 Nov. 26 (a) 6s45AM (a) 7:OOAM (a) 7s15AM (a) 7 s 30AM Nov. 27 (a) 7s30AM (a) 7s45AM (a) 8 s OOAM (a) 8 s15AM Nov. 29 (a) 9 s15AM (a) 9 s 30AM (a) 9 s 45AM (a) 10:00AM Parts per million Position Stations 8 9 10 11 Surface 540 Mid-depth 400 Bottom 4,600 Surface 1,000 Mid-depth 710 Bottom 2,900 Surface 940 Mid-depth 4,400 Bottom 14,500 Surface 6,900 Mid-depth 1,250 Bottom 1,400 Surface 9,100 Mid-depth 11,200 Bottom 11,700 Surface 7,150 Mid-depth 10,300 Bottom 12,200 Surface 6,100 Mid-depth 11,100 Bottom 11,700 Surface 8,800 Mid-depth 11,800 Bottom 11,900 Surface 11 Mid-depth 9 Bottom 19 Surface 9 Mid-depth 11 Bottom 11 Surface 7 Mid-depth 7 Bottom 11 Surface 9 Mid-depth 9 Bottom 7 Table 3 (continued) Tide cycle: 1-2 hours after high tide Date 1937 Nov. 30 (a) 9:4 5 AN! (a) 10:00AM (a) 10:15AM (a) 10:30AM (a) 10:45AM Dec. 2 (a) 11:15AM (a) 11:30AM (a) 11:45AM (a) 12:00AM Dec. 3 (a) 12:00 AM (a) 12:15PM (a) 12:30PM Parts per million Position Stations 8 9 10 11 Surface 5 Mid-depth 5 Bottom 5 Surface 7 Mid-depth 5 Bottom 7 Surface 5 Mid-depth 5 Bottom 3 Surface 7 Mid-depth 5 Bottom 5 Surface 7 Mid-depth 7 Bottom 5 Surface 5 Mid-depth 7 Bottom 5 Surface 3 Mid-depth 9 Bottom 5 Surface 3 Mid-depth 5 Bottom 3 Surface 5 Mid-depth 5 Bottom 7 Surface 21 Mid-depth 940 Bottom 13,000 Surface 17 Mid-depth 2,600 Bottom 12,600 Surface 15 Mid-depth 141 Bottom 12,100 Table 3 (continued) Tide cycle; 1-2 hour's after hi -h tide P..rts uor million Date Position Stations 10 11 1937 . 3 (a) ;ec 12; 45?! Dec. 4 (a) 1:45?L (a) 2:00?! Dec. 5 (a) 1:15R l;30?i: (a) 1:45Pi (a) (a) 2; OOF: Lec. 6 (a) 1:45?! 2:0C?! (a) (a) . 2:15?. Dec. 7 (a) 2: 45F (a) 3: COS Surface Lid-depth 3otton Surface id-depth Botton biff ace ! ".id-depth Botton Surface Lid-depth Botton Surface . .id-depth Bottom Surface ! id-depth Bottom Surface Lid-depth B otton Surface i :i d-dep th - J Ot -J Of:!. Surface id-deoth jrrio.ee ".»a,epth Bo'ctom Surface i: id-depth Botton Surface Booton 9 640 12,100 2S0 0,600 8,650 260 510 5,650 71 7,500 12,600 P, 750 12,750 51 9,650 12,700 7 1, 750 11,3-0 980 6,200 13,600 760 7,000 13,500 680 5, S00 15,500 7 67 125 15 9 17 Tabic 3 (continued) Tide cycle: 1-2 hours after hiujh tide Par I;a per nil lion Date Position Stations 8 9 10 11 12 1937 Dec. 7 (a) Surface 23 3:15 PI la-depth 9 3ottom 97 (<0 Surface 9 5: 30 PI 1. id-depth g 3otton 89 (a) Surface 13 3:45?I. Lid-depth 7 lotton 13 Dec. 8 (a) surface 11 3; 3OK. Lid-depth 24 Bottom 81 (a) Surface 11 3:4513 Lid-depth 12 Bottom 91 (a) Surface 10 4: OOPi; i id-depth 55 Bottom. 63 Dec. 9 Surface 4 Oh o o •j' j id-depth 171 Dec. 10 Surface 57 5: OOP'.' I .id- . ;th 216 Bottom 1,300 Dec. 13 (a) Surface 1,000 7: 30JJ Lid-depth 11,100 Bottom 10,600 (a) Surface 700 7: 45. _ . .id-depth C, 100 Bottom 11,000 (a) Surface 700 8:00.. . id-depth 3,000 Bottom 10,700 (a) Surface 660 I: 3GTJ I .id-depth 6,900 Bottom 8,000 85 Table 5 (continued) Date lido cycle: 1-2 hours a*' or hi^.h tide jDm bn por nil 11 oil Position 8t;vliions C 0 10 11 12 1937 Dec. 14 (a) Surface 7 200 0: 1311 1 "id-depth 11 000 Bottom 11 700 (a) Surface 9 500 8: 30.3: 1. id-depth 10 900 Bottom 10 700 (a) Surface 2 400 8:45M! I id-depth 10 100 Botton 10 300 (a) Surface 2 500 9:00.: id-depth 700 Bottom r- K ■ 800 (a) Surface 360 9:15___ i. id-dcpch 6 000 .Bottom. 7 600 Dcc. 15 (a) Surface 3 500 9:15:: ! id-depth 11 600 Bottom 12 200 (a) Surfaco O 900 o CM id-death 11 100 Bottom A_ 000 (a) Surface 3 700 9:45.. ; id-depth 1: 600 Bottom 13 600 (a) Surface r* 0 700 10:00.: i. id-dop iih 11 700 Botto? ?. 13 600 (a) ourfc.ce 4 400 10:15-! mid-depth 1 700 Bottom Q 200 Dec. 16 (a) Surface 7 900 10:0CM. --id-depth 13 200 BotCO; i IS 950 (a) Surface 7 700 10: it:: ' id-d-. V;.h 1-, 000 Boito: - J_ J 4-00 to CO CM I—I r| r4, o ■- , •H -rH i—? X i—f CQ ■H P P } « O o •rH -—i ■ t -1—- O '.j ri r -P CI r; »•» o o O O o o o O O o o o G ' * o o o o o o o o o o o o p: CO o CO LO o CM CO LO co o LO Ci C c- '0 LO L- CM to <■* Ci oo rM - H i '—1 1—1 rH 1—1 rH rH <—J O »—t p r^. CP C 0 *H t-i !—■ Pi P J 'j -P 7p V O o r t U PH 0 O •r4 o b o J fl o O r -1 o r-j >-i -P d rO o r ' TJ o cJ rd o ri «—1 o •rH CO o o o 1—i o o d d co o rH rH rH o 1—1 o o o o o o o o o o o o o o o o O O O o o O o o o o o o o o o o o o o o o o c o o O to o o LO O o CO t.o o << LO o Ci 1—i LO o 01 CO CO 0 o Ci Ci CO CO o LO 00 CO Ci O- ^ ■ 1 to to to .0 CO o? , > LO : 0 to rH rH rH rH { ) o 1—i LT; f—1 .—1 <—1 1—1 i—! rH 1—i 1—1 1—1 1—1 rH i—! i—! 1—1 Pi r-t rr; Pi -P -p d jJ •P -! ^ -P J-> O P-4 . 0 p o r o o r o r 0 r O PH o O r i o b £ o o r' o q o o o o J ■' o ^ . O 0 r Co o cj np O Cj •"; 6 cj '"O o d rd o c J rd 6 d -J O d rc'j c; P -i. p •H O p •H O 0* ■r 1 o p • rH o P -H b p «H o P 'H O P • H c r.O < n CO o i -i IO ro ■H f "I • 0 n CO n 3 B 00 1 r d q ' t 1 ) 1 O CO • 4 i ( t r 1 O. -'•i d LO r-J lO O 1.0 O CM O 0 (—I TO O rH TO "0 »a .>» a « « • « » « • " a • • I 1 rH rH O 1—! C? r- > CM O rH f—i r-f rH O 1— 1 1—1 '—1 rH 0 Tab 1 o 3 (c ont inued) Tide cycle; 1-2 hours after hi^h tide Pari.a nor million Date 1S57 Doc. 20 (a) 1:45?:. (a) 2: oo?i: (a) 2:15?:: (a) 2:30?:. Dec. 21 2:40?? Dec. 23 4:25?! Dec. 28 (a) 9: 25f.il (a) 9:40. J" (a) 10: 55-1 1938 Jan. 14 (a) 9:50.1 (a) 10:0011 Position Stations 8 9 10 11 Surface 125 1 id-eey eh 10,500 Bctton 13,400 Surface 193 I lid-depth 1,000 Bottom 12,800 Surface 51 I'id-denth 1,400 Bottom 2,100 Surface 29 1id-depth 129 Bottom 160 Surface 135 53 57 fid-depth 620 12,500 12,300 Bottom 10,000 13,500 97 Surface 13 13 15 Lid-depth 29 21 19 Bottom 2,500 4,300 29 Surface 7,650 3,050 4,750 If id-clop th 10,800 14,100 13,500 Bottom 13,200 14,300 13,600 Surface 7,500 iid-depth 13,700 Bottom. 12,400 Surface 1,600 10,050 2,100 : id-denth 2,500 10,600 9,500 Bottom 5,800 11,300 10,700 Surface 5,200 I.id-depth 15,500 Bottom 15,400 Surface 6,500 ..id-depth 15,300 Bottom 15,000 Table 3 (continued) Tido cycle: 1-2 tours after hi^h tide Pr.rta por million Date Position Stations C 9 10 11 1938 fan. 14 (a) Surface 6 200 10:1011; Li cl-depth 14 650 3 ott on 15 200 (a) Surface 6 300 10:20.1. Lid-depth 14 450 Bottom 14 700 (a) Surface 200 10:30.1 Lid-depth 14 000 Bottom 13 600 (a) Surface 3 400 10:4011. i. id-depth 13 400 Bottom 14 300 (a) Surface 2 950 10:501, ' id-depth 12 S00 3ottom 12 700 'an, 15 (a) Surface 2 400 10: 50.1 id-aepth 14 850 Bottom 15 400 (a) Surface 2 550 11:00.1 i id-depth 15 250 Bottom 15 500 (a) Surface 2 550 11:10.1. id-depth 14 400 Boctom 15 250 (a) Surface 3 000 11: 20/11 j id-dcoth 8 200 Bottom. 14 950 (a) Surface 2 300 11:30.1. I id-depth 3 400 Bottom 14 450 (a) Surface 2 750 11:4011' : id-depth 3 100 Bottom 14 500 an. 16 (a) Surface 2 100 11:30.1' • id-depth 14 700 .—. 13 700 Table 3 (continued) Tide cycle: 1-3 hours after high tide Prrta per j-i.illion unto Position Stations G 9 10 11 1938 Jan. 16 (a) Surface 2,250 11: 40L Lid-dopth 13,700 Botton 15,550 (a) Surface 1,400 11:50AM Mid-depth 10,450 Botton 10,250 (a) Surface 2,850 12:COAL ; id-depth 9,750 Botton 12,600 (a) Surface 1,100 12:10?; Lid-dopth 7,200 Bottom 10,200 (a) Surface 1,400 12:20?? I id-depth 9,900 Botton 10,600 Jan. 17 (a) Surfo.cc 4,550 12:30?:; I .-id-depth 3,600 Botton 14,4-00 (a) Surface 4,800 12:40?: . id-depth 14,500 Botton 14,200 (a) Surface 3,500 12s 50P: Lid-depth 13,900 Botton 14,400 (a) Surface 2,700 1:00?L I id-depth 14,200 Botton 14,200 (a) Surface 4,600 1:103.. ' Lid-depth 14,100 Botton 14,000 (a) Surface 3,300 1:20PL lid-dopth 6,850 Bottom 13,700 Jan. 18 (a) Surface 2,600 1:20?; Lid-dopth 13,500 Bnffnr" 13,700 r ab1c 3 (c outinuc d) Tido cycle: 1-2 hours after hi_h tide Parts y.u.r .million Date 1938 Jan. 18 (a) 1:30 R. (a) 1: 40 PF (a) 1:50 Pi: (a) 2-.00?i:: (a) 2; 10P11 Jan. 19 (a) 2:00?i.: (a) 2:15PF (a) 2:30?:. (a) 2:4-5?;- (a) 3: OOF:. Jan. 20 3: OOP! I Jan. 26 (a) C:15FF Position C 9 10 11 1,700 I. id-depth 13,700 Bottom 15,400 Surface 1,600 Fid-depth 13,400 Bottom 15,000 Surface 2,100 -id-depth 11,800 Bottom 13,850 Surface 1,400 I id-depth 12,500 Bottom 11,700 Surface 1,800 Fid-depth 9,900 Bottom 9,900 Surface 1,250 Fid-dc-pth 12,200 Bottom 13,600 Surface 1,100 i c-.-r.c pt h 11,100 Bottom 15,350 Surface 1,500 : "id-depth 10,800 Bottom 11,600 Surface 840 "id-depth 9,600 Bottom 15,000 Surface 750 Fid-depth 9,600 3ottom 12,600 Surface 1,250 Fid-depth 11,200 Bottom 11,250 Surface 6 Fid-denth 8 7 Table 3 (continued) Tide cycle: 1-2 hours after hi"h tide Farts per nil lion Date 1938 Jan. 2G (a) 8:3021" (a) 8: 4 5_'J' (a) s: OO;J ; (a) 9:15A1* Jan. 27 (a) 9:15K1. (a) 9:30;j' (a) 9:45:1': (a) 10:00;j Feb. 2 (a) l;OOH: (a) 1:15Pi (a) 1:30?:' (a) 1:45?: ?osition Stations 8 9 10 11 Surface 8 I'id-depth 7 Bottom 7 Surface 6 Hid-depth 5 Bottom 7 Surface 6 Kid-depth 7 B ott on 6 Surface 8 il id-depth 17 Bottom 29 Surface 5 Kid-depth 5 Bottom 3 Surface 5 Kid-depth 5 Bottom 5 Surface 3 Kid-dopth 5 Bottom 5 Surface 3 Kid-depth 3 Bottom 3 Surface 12 I id-depth 740 Bottom 12,200 Surface 7 Kid-depth 2,600 Bottom 12,600 Surface 11 Kid-depth 2,000 Bottom 12,600 Surface 19 Kid-depth 1,200 Table 3 (continued) Tido cycle: 1-2 Hours after hijh tide rfc por million Date Position Stations 8 9 10 11 1938 Feb. 3 (a) Surface 8 1:45P1 Lid-depth 2,900 Bottom 6,450 (a) Surface 11 2: OOPi; Fid-depth 2,700 3otton 7,450 (a) Surface 9 2:15?I" I. id-depth 2,850 Bottom 8,600 (a) Surface 20 2:30K. I'id-depth 41 Bottom 4,150 Feb. 4 (a) Surface 13 2:15?; Fid-depth 34 Bottom 11,050 (a) Surface 8 2:30?L Lid-depth 1,770 Bottom 4,800 (a) Surface 16 2:45Pi I id-depth 21 Bottom 10,450 (a) Surface 30 3:OOPI. I id-South 3,800 i,000 (a) Surface 7 3:15?F lid-depth 2,100 Bottom 620 Feb, 11 (a) Surface 31 17 67 G:45iil " id-depth 221 2,660 740 3ottor.i 13,250 IS, 400 13,500 (a) Surface 73 9: iCfi Lid-depth 92 Bottom 15,100 Feb. 13 11: 25SJ Surface :'id-denth Bottom 240 730 6,800 Table 3 (continued) Tido cycle: 1-2 hours after hi tide¬ Parts nor million Date Position Stations 8 9 10 ll 1938 Feb. 14 (a) 11: 20F1 Surface I 'id-depth Bottom 320 12,000 14,200 320 12,900 13,800 220 12,800 13,900 (a) 11:50/3 Surface 1 id-depth Bottom 260 520 12,800 65 12,000 13,700 143 12,000 13,400 (a) 12:15PF Surface Fid-depth Bottom 400 9,200 12,300 Feb. 15 (a) 12:20?!: Surface Fid-depth Bottom 141 15,500 13,750 71 lo,oOO 13,800 45 12,500 14,300 (a) 12:50FF Surface Fid-depth Bottom 127 12,300 13,500 53 13,200 15,400 57 9,300 14,500 Feb. 17 2:207 Surface I id-depth Bottom 15 33 9,200 9 71 12,000 15 540 12,700 Fcb. 20 (a) 4:15PI Surface i id-denth L. Bottom 520 13,500 14,100 (a) 4-.30H. Surface Fid-depth Bottom 460 13,100 14,500 (a) 4:45?: Surf ace : id-depth Bottom 400 13,950 13,800 (a) 5: OOP!. Surface id-depth Bottom 520 13,800 14,400 Feb. 25 (a) 8130-*i. Surface ! id-dopth Bottom 720 13,550 13,900 (a) 8:45.3 Surfo.ce ] id-dopth 760 13,550 13,900 Tabic 3 (continued) Tide cycle: 1-2 hours after hiph tide Parts ;>or million Date Position 0 Stations 9 10 11 1938 Feb. 25 9: 00.51 (a) Surface !! id-depth Bottom 840 12,200 13,600 9:15AI (a) Surface llid-depth Bottom 1,080 13,700 15,350 9:30. J (a) Surface I!id-dcpth Bottom 1,200 11,900 13,400 Feb. 26 9:30.1 (a) Surface 1! id-death 0. Dot ton 400 .13,000 14,000 C . A ^ • «. • "i; -J-—-. (a) Surfo.ce id-depth Dotton 380 15,400 14,100 ic: oc::. (a) Surface !! id-depth Bottom 420 13,500 13,850 Feb. 27 10:00. j (a) Surface .'id-depth Dot eon 1,450 12,100 15,400 10:15.- (a) Surface , id-depth Bottom 1,980 12,800 13,500 10:30. J. (a) Surface . id-depth Bottom 1,530 4,700 15,400 10:45.1! (a) Surface ' id-depth Bottom 1,320 6,300 11,500 11:00.1. (a) Surface i id-depth Bottom 1,380 9,700 11,700 Feb. 28 10:45.1' Surface L'.id-dopth Bottom 41-0 11,200 12,950 280 5,300 10,000 9,300 12,400 13,500 Table 3 (continued) Tide cyclo: 1-2 h0V.l S afbor hip •h ticlo Parte per nilli .on Date Position i Stations G 9 10 11 1S38 liar. 1 (a) Surface 4,600 5,500 8,750 11: 2 OAT. bid-depth 11,450 11,400 12,300 Botton 9,800 11,900 12,400 Liar. 7 Surface 35 38 45 4:05PI: bid-depth 114 3,050 3,800 Bottom 2,050 10,950 6,100 bar. 27 (a) Surface 6 8:45.X bid-depth 1 Bottom. 1 (a) Surface 2 9:00. J1 bid-depth 9 t-J t>o~ct on 1 (a) Surface 1 9:15.i- bid-depth 1 Bottom- 2 (a) Surface 3 9: 5Oil . id-depth 6 Bottom 2 liar. 28 Surface 2 2 2 9 Ut 9:4GMJ I.id-depth 1 7 2 2 Botton 1 4- 2 3 bar. 29 (a) Surface 1 10:15.11 : id-depth 2 Bottom- 3 (a) Surf ace 2 10:30.X bid-depth 4 Bo'ct cm 3 (a) Surface 2 10:45.1. i id-depth 2 Bottom ry o (a) Surface 2 11:00X1 1 id-depth 2 Bottom 1 bar. 31 Surface 4 11 5 3 11:3 5X :. id-depth 51 133 3 10 Sni-.r.nn 11,500 10,500 5,100 11,200 ! 6 Table 3 (continued) Tide cycle: 1-2 hours after hi,,h tide r-u-ts por million Date Position Stations 0 9 10 11 12 1938 Apr. 1 Surface 12 9 2 8 4 12:15?L I.'id-depth 14 13 15 15 3 Dotton 10,650 9,250 4,500 11,000 1,500 Apr. 3 Surface o 5 1-7 5 100 1:45FL" ."id-dopth 55 33 3 15 233 Bottom 5,450 5,600 91 6,000 400 -Apr. 4 Surface 4 4 3 n O 76 * 2:35PL I' id-depth 10 6 7 13 83 Bottom 4,850 81 4 4,200 83 Apr. 5 Surface 6 12 4 r? o 90 3:35H.: Lid-depth 33 25 3 22 142 Bottom 11,050 10,050 123 6,250 142 Apr. 6 Surface 8 5 6 4 5 4:40PL Ilid-depth 10 7 13 22 29 Bottom 5,950 11,500 8,800 5,450 8,800 Apr. 7 Surface 16 15 11 18 10 " 5: 45H" Mid-depth 3,000 2,650 2,700 1,670 13 Bottom 12,900 12,800 7,500 7,450 2,070 Apr. 11 (a) Surface 13 10 12 15 13 9:15A? 3 .id-dopth 7,350 6,550 4,500 7,750 1,420 Bottom 9,800 12,500 6,700- 13,000 12,000 (a) Surface 15 10: oo;:' Aid-depth 260 Bottom 8,800 Apr. 12 Surface 10 6 9 10 22 10:15;A Aid-depth 89 47 69 23 79 Bottom 11,100 9,400 11,050 11,300 520 Apr. 13 Surface 19 8 11 14 129 10: 55.1'" i id-depth 4,500 6,150 8,050 39 280 B ottcm 11,800 11,550 5,950 11,150 370 Apr. 14 Surface 23 5 9 7 25 11:40.1. llid-depth 101 3,850 65 46 159 Bottom 11,100 10,800 11,450 10,900 4,300 Apr. 17 (a) Surface 3 1:30?]" ) id-dopth 7 nn-i-i- n-. 0,500 97 Table 3 (continued) Tide cyclo: 1-2 hours after hi;;li tido farts nor nil lion Date Position Stations 8 9 10 11 12 1938 .or, 17 (a) Surface 2 3 2 2 48 '2:25?;: : .id-depth 5 9 r» o 16 51 Botton 910 15 5 61 57 ._pr. 18 (a) Surface 3 2 ry 0 2 3 2:35PI: I.id-depth 4 4 2 5 4 Bott an n o 7 3 4 5 (a) Surface rv 2 2 3 2 3:25?:: Ilia-depth 2 2 2 4 3 3otton 2 2 2 5 3 lor. 20 surface 2 1 3 4 3 ~ 4: 207: id-de-th 2 5 2 S 2 JoIton 4 4 2 3 3 i.pr. 23 (a) Surface 5 6: 1511.' : id-deoth i 3 B ott on 2 (a) ourface 3 6: 30.1 1 .'.id-depth 1 Botton 2 (a) Surface 4 6:4511. i id-depth 3 Bottom 2 (a) Surface 2 7: 0011; id-depth 3 Bottom 2 -pr. 24 (a) Surface 2 7:1511. Mid-depth 3. Bottom 2 (a) Surface 2 7:30.1. i'.id-dcoth J. 3 Bottom 0 i~j (a) Surface 3 7:45.1" i id-depth 1 Bottom 3 (a) Surface 2 8:0011 ilid-depth. 3 Bottom 3 Table 3 (continued) Tide cycle: 1-2 hours .ftor hi,ph tide Par:. ,s por million Date Position Stations 8 o u 10 11 1938 Apr. 25 (a) 8:10-'J Surface I .id-depth Dot ton 2 4 A 2 2 2 1 4 1 5 2 5 (a) 8: 55AI" Surface I'.id-depth. Bottom ^'.pr. 26 (a) * 8: 55AL Surface I.- id-depth Bottom 6 G 8,300 f? O 46 680 2 2 2 3 2 8,500 (a) £: 40AI Surface I'.id-dopth Bottom Apr. 27 (a) 9:3 OA.'. Surface Ilid-dcpth Bottom 6 9 5,300 (a) 9:45AL Surface Aid-depth Bottom 12 22 9,150 (a) 10:OQaU Surface I ..id-dopth Dottan. 38 11 10,100 (a) 10: 15 A.: Surface Bid-depth Bottom 36 14 700 Apr. 28 (a) 10:15A' Surface Lid-depth Bottom 4 8 10,450 (a) 10:30AL Surface Lid-depth Bottom 3 8 10,550 ^.pr. 30 (a) 11:4 5 Ah' Surfaco --id-depth Bottom 25 8,300 12,400 (a) 12:OO;J: Surface I. id-depth Bottom 23 6,050 11,450 99 Table 3 (continued) Date Position Tide cycle: 1-2 hours after hi ji tide Parts per -aillion Stations 8 9 10 11 12 1938 .Lpr. 30 (a) 12:15 PL: Lay 1 12; 50PI Lay 2 (a) 1: 15PL (a) 1:30PL (a) 1: 45PI (a) 2: OOPL Lay 3 (a) 2:15PL (a) 2: 30Pi. (a) 2:45PM (a) 3:00?!." Lay 4 (a) 3:19PL Lay 5 (a) 4:15PI, Surface Lid-depth Bottom Surface I id-depth Bottom Surface Lid-denth Surface i-id-depth Bottom Surface .id-depth Bottom- Surface I. id-depth Bottom Surface ] id-depth Bottom Surface I id-depth Bottom Surface : id-''cpth Sun ace I "id-depth Bottom Surface I 'id-depth Bottom Surface 1. id-depth Bottom 270 9,800 12,000 220 G, 700 12,750 13 800 11,800 9 1,950 12,400 80 G,350 12,200 93 3,950 12,200 59 3,600 11,750 55 4,150 11,300 137 9,500 12,600 111 11,150 12,150 62 10,700 12,650 46 11,950 12,850 350 8,500 12,950 760 12,850 13,600 ob 1,650 2,100 600 4,250 12,850 960 8, 550 9,700 100 Table 3 (continued) Tide cyclo: 1-2 hours s.ftor high tide Parts pur nillion Date Position Stations 8 9 10 11 12 1938 Lay 5 (a) Surface 350 4: 30PI.2 Lid-dopth 12,750 Bottom 13,800 Lay 6 (a) Surface 2,620 5:15PM Ilid-depth 10,900 Bottom 11,300 (a) Surface 2,600 5:30PL: Lid-depth 10,400 Bottom 11,100 Kay 8 (a) Surface 4,750 6:45:2. Lid-depth 10,200 Bottom 13,750 (a) Surface 950 7:0022: !'.id-depth 10,150 Bottom 10,900 (a) Surface 8,450 7:15221 Lid-depth 10,000 Bottom 10,950 (a) Surface 430 7: 3022: Lid-depth 11,000 Bottom 13,800 (a) Surface 440 7 : 4522: Lid-depth 11,600 Bottom 12,200 Lay 9 (a) Surface 3,350 7:45222 i id-depth 11,400 Bottom 13,700 (a) Surface 5,050 8:00222 Lid-depth 12,150 Bottom 13,950 (a) Surface 1,550 8:15222 Lid-depth 9,150 Bottom 12,750 (a) 8:3 032 Surface I '.id-depth Bottom 1,900 11,450 11,900 101 Tabic S (continued) Date Position Tide cycle: 1-2 hours %J?t«r high tido Parbs par million Stations 8 9 10 11 12 1938 Lay 9 (a) 8:45LL Lay 10 (a) 8:51,11 (a) S: 56,j.'. Lay 11 (a) 9:47.1.; (3-) 10:37,1" 3 my 15 (a) 11:00,1" 11:15,1 (a) (a) 11:30,1. (a) 11:45,1 (a) 12:00,1. Lay 18 (a) 2: 51PI. (a) 3:41PL Surface : .id-depth Bottom Surface id-dopth Bottom Surface Lid-depth Bottom Surface . id-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface id-depth Bottom Surface ' id-depth Bottom Surface Lid-depth B ott on Surface . "id-depth Bottom Surface Lid-depth Bottom 1,040 12,950 13,750 1,070 12,500 14,050 15 5,140 12,550 2,150 12,300 14,150 1,230 12,250 13,400 1,970 11,900 15,750 2,250 10,900 13,800 1,950 11,250 13,750 2,110 6,250 13,600 1,460 10,150 13,550 9 20 11,650 1,630 1,200 11,950 12,600 15,450 13,650 1,320 12,100 12,800 9 10 7,450 1,330 9,850 13,950 10 14 9,050 9 18 4,700 910 2,450 10,850 1,690 2,250 7,650 106 109 290 Tabic 3 (continued) Tide cycle: 1-2 tours after hi, h tide Parts per nillion Date Position Stations 8 9 10 11 1938 July 6 Surface 1,600 7:0611! (9.1) 1.id-depth 9,900 Bottom 13,500 July 7 Surfaco 3,750 8:01TB (9A) Aid-depth 12,250 Bottom 14,650 July 9 Surface 3,250 9:41AK (9A) Kid-depth 13,200 Bottom 14,250 Aug. 15 Surface 3,350 9,150 4,900 2:35PK i. id-depth 15,050 11-,650 15,300 Bottom 15,200 15,100 15,400 Sept. 6 Surface 8,150 9:30nK (9A) Kid-depth 14,300 Bottom 15,650 Sept.18 Surface 710 G-.15111 1 .id-depth 13,550 Bottom 14,700 Sept.21 Surface 7 9:20111 (9A) Kid-depth 7 Bottom 6 Sept.22 Surfaco 9 10:30.1" (9A) Kid-depth 9 Bottom 8 Sept.25 Surface 3 12:45PK (9A) Kid-depth Bottom Sept.27 2:OOFK (SA) Surface Kid-depth Bottom 4 Table 4 Tide cycles 2-3 hours after high tide Parts per million bate Position Stations 8 9 10 11 1937 11 ov. 16 (a) Surface 7 10:34AM Mid-depth 7 Bottom 5 (a) Surface 7 10:44AM Mid-depth 7 Bottom 7 Nov. 17 (a) Surface 155 11:41AM Mid-depth 189 Bottom 460 (a) Surface 111 11:56AM Mid-depth 121 Bottom 125 (a) Surface 119 12:11PM Mid-depth 119 Bottom 125 (a) Surface 101 12:26PM Mid-depth 110 Bottom 119 Not. 18 (a) Surface 71 12:15PM Mid-depth 4,800 Bottom 5,600 (a) Surface 91 12:30PM Mid-depth 81 Bottom 80 (a) Surface 85 12:45PM Mid-depth 115 Bottom' 1,740 (a) Surface 300 1:00PM Mid-depth 350 Bottom 320 (a) Surface 280 1:15PM Mid-depth 320 Bottom 340 Not. 19 (a) Surface 114 12:30AM Mid-depth 47 Bottom 29 Table 4 (continued) Tide oycle: 2-3 hours after high tide Date 1937 Nov. 19 (a) 12:45AM (a) 1:00AM (a) 1:00PM (a) 1:15PM (a) 1:30PM (a) 1:45PM Nov. 20 (a) 1:45PM (a) 2:00PM Nov. 21 (a) 1:45PM (a) 2:00PM (a) 2:15PM (a) 2:30PM Parts per million Position Stations 8 9 10 11 Surface 45 Mid-depth 49 Bottom 39 Surface 13 Mid-depth 39 Bottom 19 Surface 285 Mid-depth 9,600 Bottom 8,200 Surface 123 Mid-depth 320 Bottom 560 Surface 111 Mid-depth 240 Bottom 280 Surface 165 Mid-depth 300 Bottom 340 Surface 550 Mid-depth 1,100 Bottom 10,600 Surface 144 Mid-depth 301 Bottom 5,000 Surface 210 Mid-depth 11,500 Bottom 13,250 Surface 165 Mid-depth 7,850 Bottom 13,450 Surface 127 Mid-depth 410 Bottom 12,450 Surface 186 Mid-depth 300 Bottom 10,000 Table 4 (continued) Tide cycles 2-3 hours after high tide Date 1937 Nov. 23 4:30PM Nov. 26 (a) 7:45AM (a) 8:OOAM (a) 8:15AM (a) 8:30AM Nov. 27 (a) 8:3QAM (a) 8:45AM (a) 9:OOAM (a) 9:15AM (a) 9:30AM Nov. 29 (a) 10:15AM (a) 10:30AM Parts per million Position Stations 8 9 10 11 Surface 740 Mid-depth 2,900 Bottom 10,100 Surface 260 Mid-depth 1,400 Bottom 1,000 Surface 2,200 Mid-depth 760 Bottom 1,600 Surface 780 Mid-depth 1,100 Bottom 2,200 Surface 660 Mid-depth 2,600 Bottom 1,000 Surface 1,560 Mid-depth 11,000 Bottom 12,400 Surface 10,950 Mid-depth 12,200 Bottom 12,100 Surface 750 Mid-depth 6,500 Bottom 7,800 Surface 300 Mid-depth 7,300 Bottom 8,200 Surface 760 Mid-depth 5,900 Bottom 6,500 Surface 9 Mid-depth 11 Bottom 9 Surface 9 Mid-depth 9 Bottom 9 Table 4 (continued) Tide cycle: 2-3 hours after high tide Date 1937 Nov. 29 (a) 10:45AM (a) 11:00AM Nov. 30 (a) 11:00AM (a) 11:15AM (a) 11:30AM (a) 11:45AM Dec. 1 (a) 10:3QAM (a) 10:45AM (%) lisOGAM (a) 11:15AM Dec. 3 ; 1:00PM Dec. 5 (a) 2;15PM Parts per million Position Stations 8 9 10 11 Surface 7 Mid-depth 9 Bottom 9 Surface 13 Mid-depth 9 Bottom 9 Surface 5 Mid-depth 3 Bottom 5 Surface 7 Mid-depth 5 Bottom 5 Surface 9 Mid-depth 5 Bottom 5 Surface 7 Mid-depth 7 Bottom 13 Surface 5 Mid-depth 5 Bottom 5 Surf a ce 7 Mid-depth 5 Bottom 3 Surface 5 Mid-depth 3 Bottom 7 Sur fa ce 5 Mid-depth 5 Bottom 3 Surface 9 Mid-depth 320 Bottom 11,300 Surface 15 Mid-depth 132 Bottom 6,250 Table 4 (continued.) Tide cycle: 2-3 hours after high tide Date 1937 Dec. 5 (a) 2:30PM (a) 2:45PM (a) 3:00PM Dec. 6 (a) 2:30PM (a) 2:45PM (a) 3:00PM Dec. 7 4:00PM Dec. 13 (a) 8:45AM (a) 9:00AM (a) 9:15AM (a) 9:3QAM Dec. 14 (a) 9:3QAM Parts per million Position Stations 8 9 10 11 Surface 41 Mid-depth 280 Bottom 420 Surface 127 Mid-depth 300 Bottom 450 Surface 88 Mid-depth 300 Bottom 320 Surface 660 Mid-depth 3,800 Bottom 13,200 Surfa ce 460 Mid-depth 1,300 Bottom 13,000 Surface 240 Mid-depth 1,000 Bottom 12,200 Surface 5 Mid-depth 9 Bottom 11 Surface 340 Mid-depth 6,700 Bottom 7,800 Surface 340 Mid-depth 4,200 Bottom 6,500 Surface 580 Mid-depth 4,100 Bottom 6,200 Surface 580 Mid-depth 1,180 Bottom 6,300 Surface 560 Mid-depth 8,700 Bottom 7,100 Table 4 (continued) Tide cycle*. 2-3 hours after high tide Parts per million Date Position Stations 8 9 10 11 1937 Dec. 14 (a) Surface 2,700 9:45AM Mid-depth 3,400 Bottom 4,800 (a) Surface 3,800 10:00AM Mid-depth 3,800 Bottom 5,100 (a) Surface 2,600 10:15AM Mid-depth 4,600 Bottom 3,600 Dec. 15 (a) Surface 4,400 10:30AM Mid-depth 4,500 Bottom 10,300 (a) Surface 2,700 10:45AM Mid-depth 3,000 Bottom 5,400 (a) Surface 2,700 11:00AM Mid-depth 3,100 Bottom 8,100 Dec. 16 (a) Surface 4,800 11:15AM Mid-depth 9,500 Bottom 8,400 (a) Surface 3,500 11:30AM Mid-depth 7,900 Bottom 8,500 (a) Surface 3,500 11:45AM Mid-depth 7,700 Bottom 8,100 (a) Surface 6,200 12:00AM Mid-depth 6,200 Bottom 7,200 Dec. 17 (a) Surface 2,180 11:45AM Mid-depth 11,800 Bottom 8,500 (a) Surface 2,400 12:00AM Mid-depth 6,300 Bottom 10,800 Table 4 (continued) Tide cycle: 2-3 hours after high tide Date 1937 Dec. 17 (a) 12:15PM (a) 12:30PM Dec. 18 (a) 12:45PM (a) 1:OOPM Dec. 20 (a) 2:45PM (a) 3:00PM Dec. 21 , 3:40PM Dec. 23 5:25PM 1938 Jan. 14 (a) 11:00Ay (a) 11:10AM (a) 11:20AM Parts per million Position Stations 8 9 10 11 Surface 1,900 Mid-depth 7,500 Bottom 9,500 Surface 1,200 Mid-depth 3,300 Bottom 8,200 Surface 1,050 Mid-depth 7,500 Bottom 7,600 Surface 1,000 Mid-depth 3,700 Bottom 5,500 Surface 125 Mid-depth 171 Bottom 186 Surface Mid-depth Bottom Surface 240 Mid-depth 200 Bottom 340 Surface 3 Mid-depth 79 Bottom 340 89 164 380 200 300 520 540 2,120 2,100 13 320 17 280 940 340 Surface 2,250 Mid-depth 10,400 Bottom 11,800 Surface 1,800 Mid-depth 6,400 Bottom 10,600 Surface 1,500 Mid-depth 10,900 Bottom 10,900 (a) Surface 2,100 4,800 Table 4 (continued) Tide cycle: 2-3 hours after high tide Parts per million Date Position Stations 8 9 10 11 1938 Jan. 14 (a) Surface 2,300 ll:40AIvI Mid-depth 10,200 Bottom 9,900 (a) Surface 2,200 11:50AM Mid-depth 5,900 Bottom 10,000 (a) Surface 2,700 12:OQAM Mid-depth 9,400 Bottom 9,200 Jan. 15 (a) Surface 1,650 11:50AM Mid-depth 2,800 Bottom 13,900 (a) Surface 1,350 12:OQAM Mid-depth 3,700 Bottom 11,150 Jan. 16 (a) Surface 1,350 12:30PM Mid-depth 9,350 Bottom 10,850 (a) Surface 1,250 12:40PM Mid-depth 8,950 Bottom 10,750 (a) Surface 1,200 12:50PM Mid-depth 7,050 Bottom „ 10,450 (a) Surface 950 1:00PM Mid-depth 4,450 Bo ttom 8,750 Jan. 17 (a) Surface 4,400 1:30PM Mid-depth 11,350 Bottom 13,200 (a) Surface 2,900 1:40PM Mi d-depth 12,150 Bottom 12,500 (a) Surfa ce 4,000 1:50PM Mid-depth 10,100 12,300 Table 4 (continued) Tide cycle: 2-3 hours after high tide Parts per million Date Position Stations 8 9 10 11 1938 Jan. 17 (a) Surface 1,750 2:00PM Mid-depth 7,400 Bottom 12,000 Jan. 18 (a) Surface 2,100 2:20PM Mid-depth 5,300 Bottom 11,000 (a) Surface 1,500 2:30PM Mid-depth 8,500 Bottom 11,100 (a) Surface 1,450 2:40PM Mid-depth 5,900 Bottom 11,100 (a) Surface 1,550 2:50PM Mid-depth 3,900 Bottom 9,550 (a) Surface 1,600 3:00PM Mid-depth 2,500 Bottom 7,950 Jan. 26 (a) Surface 7 9:3QAM Mid-depth 9 Bottom 5 (a) Surface 8 9:45AM Mid-depth 6 Bottom 7 (a) Surface 6 10:00AM Mid-depth 5 Bottom 8 (a) Surface 9 10:15AM Mid-depth 9 Bottom 12 Jan. 27 Surface 11 10:15AM Mid-depth 5 Bottom 3 (a) Surface 5 10:30AM Mid-depth 5 Bottom 4 Table 4 (continued) Tide cycle: 2-3 hours after high tide Parte per million Date Position Stations 8 9 10 11 1938 Jan. 27 (a) Surface 5 10:45AM Mid-depth 3 Bottom 4 (a) Surface 6 11:00AM Mid-depth 5 Bottom 5 (a) Surface 5 11:15AM Mid-depth 5 Bottom 5 Feb. 2 Surface 17 2:00PM Mid-depth 200 Bottom 12,100 Feb. 3 (a) Surface 24 2:45PM Mid-depth 1,300 Bottom 6,600 (a) Surface 75 3:00PM Mid-depth 81 Bottom 2,000 Feb. 4 (a) Surface 9 3:30PM Mid—depth 145 Bottom 11,350 (a) Surface 199 3:45PM Mid-depth 200 Bottom 350 (a) Surface 201 4:00PM Mid-depth 95 Bottom 57 Feb. 11 (a) Surface 171 29 9:45AM Mid-depth 560 370 Bottom 6,250 8,700 (a) Surface 101 35 10:45AM Mid-depth 123 39 Bottom 132 7,600 Feb. 13 (a) Surface 410 11 11:30AM Mid-depth 510 3,900 Bottom 5,750 6,500 Table 4 (eoatinued} Tide cycle: 2-3 hours after high tide Parts per million Date Position Stations 8 9 10 11 1938 Feb. 13 (a) Surface 600 460 280 12:30AM Mid-depth 860 900 2,400 Bottom 1,050 630 590 Feb. 14 Surface 260 37 12:20PM Mid-depth 1,000 220 Bottom 12,500 12,900 Feb. 15 Surface 158 52 280 1:20PM Mid-depth 3,400 2,400 4,000 Bottom 6,750 12,950 13,800 Feb. 20 (a) Surface 220 5:15PM Mid-depth 7,350 Bottom 14,400 (a) Surface 260 5:30PM Mid-depth 7,800 Bottom 14,200 (a) Surface 360 5:45PM Mid-depth 7,900 Bottom 13,800 (a) Surface 330 6:00PM Mid-depth f 440 Bottom 13,600 Feb. 25 (a) Surface 1,280 9:45AM Mid-depth 1,400 Bottom 13,400 (a) Surface 1,140 10:00AM Mid-depth 1,250 Bottom 13,400 Feb. 28 Surface 500 420 400 11:45AM Mid-depth 600 540 1,750 Bottom 12,400 7,800 11,950 Mar. 27 (a) Surface 2 9:45AM Mid-depth 1 Bottom 1 (a) 10:00AM Surface Mid-depth Bottom 3 1 2 11-3 Table 4 (continued) Tide oycles 2-3 hours after high tide Parts per million Date Position Stations 8 9 10 11 12 1938 Mar- 27 (a) Surface 2 10:15AM Mid-depth 4 Bottom 2 (a) Surface 2 10:3QAM Mid-depth 3 bottom 2 (a) Surface 1 10:45AM Mid-depth 2 Bottom 2 Mar- 28 Surface 3 2 1 2 2 10:40AM Mid-depth 5 Bo ttom 2 2 1 3 1 Mar. 29 (a) Surface 2 • 11:15AM Mid-depth 3 Bo ttom 3 (a) Surface 1 11:30AM Mid-depth 2 Bottom 2 Apr. 1 (a) Surface 12 11 5 9 5 1:15PM Mid-depth 27 21 2 17 3 Bottom 1,350 17 3 10,750 390 Apr. 3 Surface 5 5 2 12 207 2:45PM Mid-depth 5 23 4 28 250 Bottom 5,050 27 5 4,400 320 Apr. 4 Surface 3 3 3 7 133 3:35FM Mid-depth 7 11 3 15 137 Bottom 2,850 17 5 340 139 ^pr. 11 Surface 47 10 10 15 10:15AM Mid-depth 208 94 19 25 Bottom 12,450 12,250 6,250 12,450 Apr- 12 Surface 170 12 4 12 330 11:ISAM Mid-depth 180 15 8 40 390 Bottom 11,300 7,600 8,000 11,400 560 -»pr. 13 Surface 12 9 4 11 300 11:55AM Mid-depth 270 235 9 161 470 Bn-h-tnm 2,500 1,500 6,250 3,850 960 115 Table 4 (continued) Tide cycle; 2-3 hours after high tide Parts per million Date Position Stations 8 9 10 11 12 1938 Apr, 17 Surface 3 3 2 3 63 3; 25PM Mid-depth 3 3 3 11 63 Bottom 1,070 7 3 43 63 Apr. 18 Surface 3 3 3 2 3 3;35PM Mid-depth 5 3 3 3 12 Bottom 4 4 4 4 8 Apr- 20 Surface 5 1 3 2 2 5;20PM Mid-depth 2 4 4 3 2 Bottom 3 3 2 4 5 Apr. 23 (a) Surface 1 7:15AM Mid-depth 2 Bottom 3 (a) Surface 3 7:30AM Mid-depth 1 Bottom 3 (a) Surface 3 7:45AM Mid-depth 2 Bottom 3 (a) Surface 1 8:00AM Mid-depth 2 Bottom 3 (a) Surface 2 2 8:15AM Mid-depth 2 6 Bottom 3 2 Apr. 24 Surface 2 8:15AM Mid-depth 1 Bottom 2 Apr. 25 Surface 2 2 2 2 9:10AM Mid-depth 2 2 2 1 Bottom 3 2 2 4 Apr. 26 Surface 2 4 2 2 9:55AM Mid-depth 3 4 1 6 Bottom 9 41 27 8,900 Apr. 27 Surface 3 10:30AM Mid-depth 58 Bottom 4,150 Table 4 (continued.) Tide cycle: 2-3 hours after hi~h tide Parts per million Date Position Stations 8 9 10 1938 May 3 (a) 8:00AM Surface Mid-depth Bottom 240 5,950 8,900 (a) 8:15AM Surface Mid-depth Bottom 280 320 13,050 (a) 8:30AM Surface Mid-depth Bottom 450 1,340 12,150 (a) 8:45AM Surface Mid-depth Bottom 95 910 1,740 May 9 (a) 9:OOAM Surface Mid-depth Bottom 1,450 11,100 13,850 (a) 9:15AM Surface Mid-depth Bottom 1,100 8,950 13,700 (a) 9:30AM Surface Mid-depth Bottom 700 4,050 11,100 May 10 9:51AM Surface Mid-depth Bottom 690 12,000 13,400 710 13,350 13,700 720 12,300 13,250 May 11 10:42AM Surface Mid-depth Bottom 960 12,600 13,750 1,000 12,600 13,750 May 18 3:51PM Surface Mid-depth Bo ttom 20 107 9,600 81 108 9,750 9 17 9,050 Sept.23 12:00AM (9A) Surface Mid-depth Bottom 10 20 9 Sept.24 1:01PM (9A) Surface Mi d-depth Bottom 4 11 980 12,200 13,800 Table 5 Tide oycle: 3-4 hours after high tide Parts per million Date Position Stations 8 9 10 11 1937 Nov. 15 (a) Surface 11 11:00AM Mid-depth 11 Bottom 13 (a) Surface 11 11:10AM Mid-depth 11 Bottom 13 (a) Surface 13 11:20AM Mid-depth 13 Bottom 13 (a) Surface 13 11:30AM Mid-depth 13 Bottom 13 Nov. 17 (a) Surface 11 12:41PM Mid-depth 8 Bottom 9 (a) Surface 9 12:56PM Mid-depth 11 Bottom 9 (a) Surface 9 1:11PM Mid-depth 9 Bottom 17 Nov. 18 (a) Surface 260 1:30PM Mid-depth 310 Bottom 360 (a) Surface 235 1:45PM Mid-depth 250 Bottom 260 (a) Surface 165 2:00PM Mid-depth 165 Bottom 159 (a) Surface 11 2:15PM Mid-depth 9 Bottom 9 Nov. 19 (a) Surface 33 1:15AM Mid-depth 27 Bottom 37 Table 5 (•©ntinued) Tide cycle: 3-4 hours after high tide Parts per million Date Position Stations 8 9 10 11 1937 Nov. 19 (a) Surface 127 2j00PM Mid-depth 320 Bottom 320 Nov. 21 (a) Surface 220 2:45PM Mid-depth 200 bottom 480 (a) Surface 240 3:00PM Mid-depth 260 Bottom 340 Nov. 26 (a) Surface 1#*10 8:45AM Mid-depth 1,100 Bottom 2,400 (a) Surface 330 9:00AM Mid-depth 420 Bottom 1,050 (a) Surface 900 9:15AM Mid-depth 1,200 Bottom 104 (a) Surface 1,190 9:30AM Mid-depth 1,200 Bottom 400 Nov. 27 (a) Surface 340 9:45AM Mid-depth 1,100 Bottom 1,300 (a) Surface 910 10:00AM Mid-depth 1,100 Bottom 1,300 Nov. 29 (a) Surface 11 11:15AM Mid-depth 9 Bottom 13 (a) Surface 9 11:30AM Mid-depth 9 Bottom 9 (a) Surface 11 11:45AM Mid-depth 9 Bottom 9 Table 5 (continued) Tido oyolo: 3-4 hours aftor high tido Parts por million Date Position Stations 8 9 10 11 1937 Nov. 29 (a) Surface 11 12:00AM Mid-depth 11 Bottom 9 Nov. 30 Surface 7 12:00AM Mid-depth 5 Bottom 5 Dec. 1 (a) Surface 5 11:30AM Mid-depth 7 Bottom 5 (a) Surface 5 11:45AM Mid-depth 5 Bottom 5 (a) Surface 3 12:00AM Mid-depth 3 Bottom 3 Dec. 11 (a) Surface 6 9:00AM Mid-depth 4 Bottom 6 Dec. 13 (a) Surface — 9:45AM Mid-depth 1,120 Bottom 6,400 (a) Surface 980 10:00AM Mid-depth 1,080 Bottom 1,080 Doc. 14 (a) Surface 2,200 10:30AM Mid-depth 3,000 Bottom 2,100 (a) Surface 1,500 10:45AM Mid-depth' 1,700 Bottom 3,200 (a) Surface 1,700 11:00AM Mid-depth 2,100 Bottom 2,000 Dec. 17 (a) Surface 1,500 12:45PM Mid-depth 2,400 Bottom 7,800 Table 5 (continued) Tido cyoloj 3-4 hours oftor high tido Parts por million Date Position Stations 8 9 10 11 1937 Doc. 17 (a) Surfaco 4,400 1:00PM Mid-dopth 1,700 Bottom 7,800 1938 Jon. 26 (a) Surfaco 9 10:30AM Mid-depth 11 Bottom 10 (a) Surfaco 7 10:45AM Mid-depth 10 Bottom 10 (a) Surface 7 11:00AM Mid-dopth 12 Bottom 12 (a) Surface 30 11:15AM Mid-depth 28 Bottom 29 Jan. 27 (a) Surface 8 11:30AM Mid-depth 7 Bottom 7 (a) Surface 6 11:45AM Mid-depth 7 Bottom 7 (a) Surface 6 12:00AM Mid-depth 7 Bottom 6 Fab. 11 Surface 78 10:50AM Mid-depth 280 Bottom 1,720 Feb. 13 Surface 340 720 720 1:30PM Mid-depth 700 720 800 Bottom 1,300 760 1,150 Mar. 27 11:00AM Surface Mid-depth Bottom 2 3 3 Tabla 5 (continued. Tido oyolo: 3-4 hours aftor high tido Date Position 1938 Apr. 18 (a) 4:35PI.I Surface Mid-depth Bottom (a) 5:20PM Surface Mid-depth Bottom May 8 (a) 9:00A1I Surface Llid-dopth Bottom 9:15AM (a) Surface Mid-depth Parts por million Stations 9 10 11 4 2 5 3 3 2 9 3 5 3 3 4 260 680 690 420 1,360 760 Table 6 Date Tide oycle; 4-5 hours after high tide Parts per million Position Stations 8 9 10 11 1937 Nov. 18 (a) Surface 11 2s30PM Mid-depth 9 Bottom 10 (a) Surface 17 2:45PM Mid-depth 11 Bottom 9 (a) Surface 11 3:00PM Mid-depth 11 Bottom 5 (a) Surface 9 3:15PM Mid-depth 9 Bottom 9 (a) Surface 9 3:30PM Mid-depth 9 Bottom 9 Nov. 25 (a) Surface 420 9:OOAM Mid-depth 440 Bottom 420 (a) Surface 420 9:15AM Mid-depth 420 Bottom 440 (a) Surface 360 9:30AM Mid-depth 360 Bottom 360 (a) Surface 360 9:45AM Mid-depth 380 Bottom 360 Dec. 11 (a) Surface 6 9:15AM Mid-depth 5 Bottom 8 (a) Surface 7 9:30AM Mid-depth 5 Bottom 8 (a) Surface 6 9:45AM Mid-depth 5 13 ^4-4- rvm 5 Table 6 (continued) Tide cycle: 4-5 hours after high tide Parts per million Date Position Stations 8 9 10 11 12 1937 Dec. 11 (a) Surface 4 10:00AM Mid-depth 4 Bottom 5 Dec. 12 (a) Surface 620 10:00AM Mid-depth 680 Bottom 680 (a) Surface 640 10:15AM Mid-depth 620 Bottom 660 (a) Surface 500 10:30AM Mid-depth 500 Bottom 520 (a) Surface 500 10:45AM Mid-depth 480 Bottom 480 (a) Surface 480 11:00AM Mid-depth 460 Bottom 440 1938 Jan. 26 Surface 30 11:30AM Mid-depth 30 Bottom 28 Apr. 18 Surface 3 2 5:35PM Mid-depth 2 2 Bottom 3 2 Table 7 Date 1937 Nov. 18 (a) 3:45PM (a) 4:00PM (a) 4:15PM (a) 4:30PM (a) 4:45FM Nov. 25 (a) 10:00AM (a) 10:15AM (a) 10:30AM (a) 10:45AM Dec. 11 (a) 10;15AM (a) 10:30AM (a) 10:45AM Tide cycle: One hour before to low tide Parte per million Position Station 8 9 10 11 Surface 7 Mid-depth 8 Bottom 9 Surface 7 Mid-depth 6 Bottom 7 Surface 7 Mid-depth 6 Bottom 7 Surface Mid-depth 8 Bottom 7 Surface Mid-depth 5 Bottom 7 Surface 360 Mid-depth 360 Bottom 360 Surface 300 Mid-depth 300 Bottom 300 Surface 260 Mid-depth 260 Bottom 280 Surface 300 Mid-denth 280 Bottom 280 Surface 6 Mid-depth 4 Bottom 6 Surface Mid-depth 5 Bottom 6 Surface 5 Mid-depth 5 125 Table 7. (continued) Tide cycle: One hour beforo to low tide Parts per million Date Position Stations 8 9 10 11 12 1937 Dec. 11 (a) Surface 5 11:00AM Mid-dopth 5 Bottom 5 (a) Surface 6 11:15AM Mid-depth 5 Bottom 7 Dec. 12 (a) Surface 420 11:15AM Mid-depth 480 Bottom 460 (a) Surface 420 11:30AM Mid-depth 420 Bottom 420 (a) Surface 420 11:45AM Mid-depth 400 Bottom 440 (a) Surface 260 12:00AM Mid-depth 300 Bottom 340 (a) Surface 280 12:15PM Mid-depth 300 Bottom 300 Dec. 27 Surface 1:21PM (12A) Mid-depth Bottom 23 25 27 Table 8 Tide cycle: low tide to one hour after Parts per million Date Position Stations 8 9 10 11 1937 Nov. 18 (a) Surface 7 5:00PM Mid-depth 6 Bottom 7 (a) Svtrface 11 5:15PM Mid-depth 7 Bottom 5 (a) Surface 7 5:30PM Mid-depth 5 Bottom 7 (a) Surface 7 5:45FM Mid-depth 7 Bottom 7 Nov. 25 (a) Surface 109 11:00AM Mid-depth 200 Bottom 113 (a) Surface 109 11:15AM Mid-depth 109 Bottom 109 (a) Surface 13 11:30AM Mid-depth 13 Bottom 13 (a) Surface 11 11:45AM Mid-depth 13 Bottom 11 Dec. 11 (a) Surface 4 11:30AM Mid-depth 4 Bottom 7 (a) Surface 5 11:45AM Mid-depth 4 Bottom 6 (a) Surface 6 12:00AM Mid-depth 8 Bottom 6 Dec. 12 (a) Surface 123 12:30PM Mid-depth 143 Bottom 149 127 Table 8 (continued) Tide oyole: low tide to one hour after Parts per million Date Position Stations 8 9 10 11 12 1937 Dec. 12 (a) Surface 137 12:45PM Mid-depth 137 Bottom 137 (a) Surface 169 1:00PM Mid-depth 43 Bottom 59 (a) Surface 41 1:15PM Mid-depth 55 Bottom 63 (a) Surface 43 1:30PM Mid-depth 43 Bottom 63 Dec. 25 (a) 11:45AM Surface Mid-depth Bottom 500 540 600 620 620 620 520 700 1,080 (e) 11:34AM (12A) Surface Mid-depth Bottom 820 1,020 1,040 Dec. 26 (f) 12:47PM (12A) Surface Mid-depth Bottom 780 820 820 (f) 1:02PM (12A) Surface Mid-depth Bottom 760 760 820 (f) 1:17PM (12A) Surface Mid-depth Bottom 600 640 660 (e) 12:32PM (12A) Surface Mid-depth Bottom 820 1,700 3,100 Dec. 27 1:35PM Surface Mid-depth Bottom 35 15 119 9 103 9 15 167 179 128 Table 8 (continued) Tido cyoloj low tido to one hour after Parts por million Date Position Stations 8 9 10 11 12 1938 Jan. 8 (e) Surface 19 9:38AM (12A) Mid-depth 21 Bottom 15 Surface 9 9 8 9:50AM Mid-depth 12 7 8 Bottom 12 7 19 Jan. 9 (e) Surface 25 10:38AM (12A) Mid-depth 13 Bottom 27 Surface 6 7 5 10:50AM Mid-depth 11 8 9 Bottom 6 8 7 Jan. 10 (e) Surface 13 11:40AM (12A) Mid-depth 21 Bottom 13 (a) Surface 11 11:55AM Mid-depth 11 Bottom 11 (a) Surface 43 7 5 12:00A1I Mid-depth 25 7 7 Bottom 23 11 10 Jan. 11 (e) Surface 520 12:38PM (12A) Mid-depth 540 Bottom 580 (a) Surface 400 260 440 12:50PM Mid-depth 320 340 460 Bottom 420 420 480 Jan. 24 (o) Surface 1,850 11:55AM (12A) Mid-depth 2,100 Bottom 2,100 (a) 12:10PM Surface Mid-depth Bottom 1,380 960 8,850 3,150 3,100 12,100 1,800 1,900 12,100 129 Table 8 (continued) Date Tide cyclo: low tide to ono hour after Parts per million Position Stations 8 9 10 11 12 1938 Jan. 25 (o) Surfaco 12:54PM (12A) Mid-depth Bottom (a) Surface 1,050 1:05PM Mid-depth 1,050 Bottom 1,200 (a) Surfaco 1,000 1:20PM Mid-dopth 1,030 Bottom 1,060 (a) Surface 880 1:35PM Mid-depth 900 Bottom 940 (a) Surfaco 780 1:50PM Mid-depth 900 Bottom 920 1,500 1,600 1,700 Table 9 Tide cycle: 1-2 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Nov. 18 (a) Surface 13 6:00PM Mid-depth 7 Bottom 5 (a) Surface 6 6:15PM Mid-de pth 5 Bottom 11 (a) Surface 8 6:30PM Mid-depth 9 Bottom 7 Nov. 25 (a) Surface 11 12.-00AM Mid-depth 9 Bottom 23 (a) Surface 13 12:15PM Mid-depth 11 Bottom 11 (a) Surface 11 12:30PM Mid-depth 11 Bottom 17 (a) Surface 11 12:45PM Mid-depth 15 Bottom 11 Dec. 9 Surface 7 11:00AM Mid-depth 7 Bottom 13 Dec. 10 Surface 5 12:00AM Mid-depth 5 Bottom 13 Dec. 11 (a) Surface 5 12:15PM Mid-depth 5 Bottom 7 (a) Surface 5 12:30PM Mid-depth 6 Bottom 6 (a) Surface 5 12:45PM Mid-depth 5 Rottorn 6 131 Table 9 (continued) Tide cycle: 1-2 hours after low tide Parts per million Date Position Stations 8 9 10 11 12 1937 Dec. 11 (a) Surface 4 1:00PM Mid-depth 4 Bottom 5 Dec. 12 (a) Surface 23 1:45PM Mid-depth 43 Bottom 59 (a) Surface 23 2:00PM Mid-depth 43 Bottom 49 (a) Surface 23 2:15PM Mid-depth 43 Bottom 65 (a) Sur face 11 2:30PM Mid-depth 135 Bottom 580 Dec. 24 (a) Surface 260 12:00AM Mid- depth 3,000 Bottom 3,700 (a) Surface 220 12:15PM Mid-depth 1,000 Bottom 3,000 Dec. 25 12:45PM Surface Mid-depth Bottom 300 360 480 380 380 380 300 380 520 Dec/ 26 (f) 1:32PM. (12A) Surface Mid-depth Bottom 620 640 680 (f) 1:47PM (12A) Surface Mid-depth Bottom 460 460 500 (f) 2:02PM (12A) Surface Mid-depth Bottom 400 500 500 (f) Surface 2:17PM (12A) Mid-depth Bottom 360 380 440 Table 9 (continued) Tide cycle: 1-2 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Dec. 27 Surface 21 7 11 2:35PM Mid-depth 27 7 11 Bottom 121 9 155 1938 Jan. 8 Surface 8 7 8 10:5QAM Mid-depth 8 8 9 Bottom 6 8 10 Jan. 9 Surface 7 7 7 11:50AM Mid-depth 7 6 6 Bottom 8 8 7 Jan. 10 Surface 16 7 7 1:00PM Mid-depth 18 8 7 Bottom 21 7 7 Jan. 11 Surface 340 280 450 1:50PM Mid-depth 370 460 460 Bottom 420 1,700 480 Jan. 24 Surface 1,330 1,050 1,250 1:10PM Mid-depth 3,400 13,100 6,200 Bottom 1,500 13,800 14,750 Jan. 25 (a) Surface 570 2:05FM Mid-depth 790 Bottom 750 (a) Surface 460 2:20PM Mid-depth 660 Bottom 600 (a) Surface 440 2:35PM Mid-depth 490 Bottom 520 (a) Surface 390 2:50PM Mid-depth 400 Bottom 420 Feb. 22 (a) Surface 45 57 15 12:55PM Mi d-depth 144 56 35 Bottom 1,300 59 53 133 Table 9. (continued) Date 1938 Feb. 22 (e) 12:40FM (l'c Mar. 8 (e) Position Tide cycle: 1-2 hours after lovr tide Parts per million Stations 8 9 10 11 12 Surface 34 Mid-depth 47 Bottom 50 Surface 13 Mid-depth 17 Bottom 13 (a) Surface 9 7 8 11:20AM Mid-depth 7 9 21 Bottom 8 11 11 Mar. 9 (e) Surface 85 12:13PM (12A) Mid-depth 99 Bottom 121 (a) Surface 86 46 95 12:25PM Mid-depth 122 75 145 Bottom 260 85 201 Mar. 10 (e) Surface 240 1:20PM (l2A) Mid-depth 310 Bottom 320 Surface 270 210 200 1:35PM Mid-depth 2,100 950 420 Bottom 8,600 3,900 4,900 Mar. 23 (e) Surface 5 12:00AM (12A) Mid-depth 11 Bottom 9 (a) Surface 5 4 5 5 5 12:25PM Mid-depth 5 5 4 6 5 Bottom 5 5 11 11 5 Mar. 24 (e) Surface 5 12:55PM (12A) Mid-depth 5 Bottom 5 (a) Surface 3 5 2 4 4 1:15PM Mid-depth 5 3 3 5 6 Bottom 3 7 4 6 5 liar. 25 (e) Surface 6 1:48PM (12A) Mid-depth 3 Bottom 9 134 Table 9 (continued) Date 1938 liar. 25 (a) 2:15PM Position Tide cycle: 1-2 hours after low tide Parts per million Stations Surface Mid-depth Bottom Apr. 8 (e) Surface 1:06PM (12A) Mid-depth Bottom 8 3 3 3 10 2 3 2 3 7 2 11 8 5 8 12 3 3 5 3 4 7 Apr. 9 (a) Surface 6 7 2:25PM Mi d—depth 7 10 Bottom 13 9 (e) Surface 10 2:10PM (12A) Mid-depth 10 Bottom 16 Apr. 10 (e) Surface 7 3»10PM (j2A) Mid-depth 10 Bottom 10 (a) Surface 5 3:20B1 Mid-depth 6 Bottom 5 Apr. 21 (e) Surface 2 11:46AM (12A) Mi d-depth 3 Bottom 4 (a) Surface 1' 4 11:55AM Mi d-depth 3-' 4 Bottom 3. 2 Apr. 22 (a) Surface 5 3 17 7 3 12:30PM Mid-depth 3 5 19 15 13 Bottom 3 4 5 12 8 (e) Surface 7 12:09PM (12A) Mid-depth 3 Bottom 3 May 7 1:05PM Surface Mid-depth Bottom 22 16 20 Table 10 . . Tide cycle: 2-3 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Nov# 18 (a) Surface 6 6 :45BI Mid-depth 5 Bottom 7 (a) Surface 6 7j00PM Mid-depth 7 Bottom 7 (a) Surface 7 7:15PM Mid-depth 21 Bottom 7 (a) Surface 7 7:30FM Mid-depth 9 Bottom 5 Nov. 22 (a) Surface 9 10:00AM Mid-depth 9 Bottom 8 (a) Surface 7 10:15AM Mid-depth 5 Bottom 9 (a) Surface 11 10:30AM Mid-depth 11 Bottom 9 Nov. 23 Surface 19 11:30AM Mid-depth 275 Bottom 220 Nov. 25 (a) Surface 15 1:00PM Mid-depth 15 Bottom 15 (a) Surface 29 1:15PM Mid-depth 11 Bottom 11 (a) Surface 11 1:30PM Mid-depth 13 Bottom 11 (a) Surface 15 1:45PM Mid-depth 13 Bottom 149 Table 10 (continued) Tide cycle: 2-3 hours after low tide Date 1937 Nov. 25 (a) 2": OOPM Dec. 8 11:00AM Dec. 9 (a) 11:15AM (a) 11:30AM (a) 11:45AM Dec. 10 (a) 12:00AM (a) 12:15PM (a) 12:30PM (a) 12:45PM (a) 1:00PM Dec. 11 (a) 1:15PM Parts per million Position Stations 8 9 10 11 Surface 13 Mid-depth 17 Bottom 137 Surface 13 Mid-depth 12 Bottom 65 Surface 5 Mid-depth 7 Bottom •5 Surface 9 Mi d-de pth 3 Bottom 7 Surface 5 Mi d-depth 5 Bottom 5 Surface 7 Mi d-depth 5 Bottom 5 Surface 5 Mid-depth 5 Bottom 7 Surface 15 Mid-depth 5 Bottom 4 Surface 7 Mid-depth 7 Bottom 7 Surface 9 Mid-depth 15 Bottom 960 Surface 5 Mid-depth 5 Bottom 6 (a) 1:30PM Surface Mid-depth Bottom 13 137 Table 10 (continued) Tide cycle: 2-3 hours after low tide Parts per million Date Position Stations 8 9 10 11 12 1937 Dec. 11 (a) Surface 9 1:45PM Mid-depth 9 Bottom 8 (a) Surface 8 2:00PM Mid-depth 9 Bottom 9 Dec. 12 (a) Surface 11 2:45FM Mid-depth 213 Bottom 540 (a) Surface 11 3:00PM Mid- depth 89 Bottom 240 Dec. 24 (a) Surface 220 12:30PM Mid-depth 600 Bottom 3,600 (a) Surface 200 12:45PM Mid-depth 1,500 Bottom 4,200 (a) Surface 220 1:00PM Mid-depth 4,200 Bottom 5,200 (a) Surface 200 1:15PM Mid-depth 320 Bottom 2,400 Dec. 25 Surface 300 380 280 1:45PM Mid-depth 580 360 360 Bottom 460 380 560 Dec. 26 (f) Surface 320 2:32PM (12A) Mid-depth 380 Bottom 400 (f) Surface 220 2:47PM (12A) Mid-depth 260 Bottom 360 (f) Surface 260 3:02PM (12A) Mid-depth 300 Bottom 380 138 Table 10 (continued.) Date 1937 Position Tide cycle: 2-3 hours after low tide Parts per million Stations 8 10 11 Dec. 27 Surface 15 9 11 3:35PM Mid-depth 81 79 117 Bottom 1*380 200 171 12 1938 Jan. 7 Surface 117 113 211 10:50AM Mid-depth 540 500 440 Bottom 3,770 4,350 4,850 Jan. 8 Surface 7 8 11 11:50AM Mid-depth 7 8 8 Bottom 8 7 10 Jan. 9 Surface 11 7 7 12:50PM Mid-depth 8 7 7 Bottom 6 7 7 Jan. 10 Surface 5 6 2:00EM Mid-depth 6 7 Bottom 11 7 Jan. 11 Surface 300 260 260 2:50PM Mid-depth 240 560 320 Bottom 380 460 1,880 Jjm. 20 (a) Surface 390 10:OQAL Mid-depth 2,150 Bottom 6,150 (a) Surface 390 10:15AM Mid-depth 760 Bottom 4,500 (a) Surface 420 10:30AM Mid-depth 2,200 Bottom 3,750 (a) Surface 470 10:45AM Mid-depth 1,850 Bottom 4,400 Jan. 21 (f) Surface 11:42AM (12A) Mid-depth Bottom 540 1,400 3,100 130 Table 10 (continued) Tide cycle: 2-3 hours after low tide Parts per million Date Position Stations 8 9 10 11 12 1938 Jan. 22 (f) 12:39PM (12A) Surface Mid-dppth Bottom 760 4,000 7,000 Jan. 24 2:10PM Surface Mid-depth Bottom 1,470 7,200 8,250 1,400 7,400 13,800 1,020 6,700 14,200 Jan. 25 (a) 3:05PM Surface Mid-depth Bottom 360 360 380 (a) 3:20PM Surface Mid-depth Bottom 330 350 350 (a) 3:35PM Surface Mid-depth Bottom 280 310 310 (a) 3:50PM Surface Mid-depth Bottom 280 290 300 Feb. 7 (a) 12:05PM Surface Mid-depth Bottom 9 7 7 5 7 3 7 11 17 (a) 12:35PM Surface Mid-depth Bottom 11 11 5 5 5 5 5 5 3 Feb. 10 (e) 4:07PM (12A) Surface Mid-depth Bottom 7 9 7 Feb. 21 1:05PM Surface Mi d-depth Bottom 156 1,360 9,100 186 1,520 1,880 145 330 450 Feb. 22 1:55PM Surface Mid-depth Bottom 35 207 8,800 9 129 580 11 30 47 Feb. 23 (e) 2:38PM (12A) Surface Mid-depth Bottom 17 19 27 140 Table 10 (continued) Tide cycle: 2-3 hours after lo vi¬ tide Parts per million Date Position Stations 8 9 10 11 12 1938 Feb. 23 (a) 2:50PM Surface Mid-depth Bottom 37 83 2,750 9 139 310 7 37 3,500 Feb. 24 (e) 3:31PM (12A) Surface Mid-depth Bottom 630 700 2,900 (a) 3:45PM Surface Mid-depth Bottom 350 4,450 13,200 290 1,020 9,600 540 1,340 10,300 Mar. 8 12:20PM Surface Mid-depth Bottom 8 8 7 9 7 10 12 11 10 Mar. 9 Surface 80 99 119 1:25PM Mid-depth 227 99 215 Bottom 1,040 206 310 Mar. 10 Surface 220 220 290 2:35PM Mid-depth 3,250 4,550 1,300 Bottom 10,300 3,200 5,600 Mar. 23 Surface 8 4 5 5 4 1:25PM Mid-depth 7 6 5 5 5 Bottom 5 5 9 14 4 Mar. 24 Surface 3 3 4 7 3 2:15PM Mid-depth 3 3 3 5 3 Bottom 6 5 4 7 3 Mar. 25 Surface 5 2 5 3 3 3:15PM Mid-depth 3 2 4 5 9 Bottom 2 3 2 7 2 Apr. 8 Surface 3 5 3 4 2:30PM Mid-depth 4 5 4 3 Bottom 6 7 11 11 Apr. 9 (a) Surface 12 10 6 2:35PM Mid- depth 21 5 6 Bottom 1,220 6 10 (a) Surface 7 8 9 3:30PM Mid-depth 6 11. 12 Bottom 11 8 29 Table 10 (continued) Tide cycle: 2-3 hours after low tide Parts per million Date Position Stations 8 9 10 11 12 1938 Apr. 10 (a) Surface 5 5 4 6 3:35PM Mid-depth 8 5 4 8 Bottom 3 7 7 10 (a) Surface 6 5 4:25PM Mid-depth 7 6 Bottom 7 5 Apr. 21 Surface 2 3 9 1 5 12:05PM Mid-depth 2 2 3 3 3 Bottom 3 2 2 7 5 Apr. 22 Surface 3 3 3 3 3 1:30PM Mid-depth 3 2 6 7 5 Bottom 3 2 4 3 5 May 2 Surface 6 9 9:15AM Mid-depth 9 9 Bottom 16 10 May 4 Surface 47 11:04AM Mid-depth 30 Bottom 30 May 5 (a) Surface 10 9 10 11:45AM Mid-depth 13 9 11 Bottom 13 26 13 (a) Surface 10 12:00AM Mid-depth 10 Bottom 24 " May 6 (a) Surface 15 20 28 12:40PM Mid-depth 137 109 34 Bottom 430 145 161 (a) Surface 48 1:00PM Lid-deoth 106 Bottom 119 May 7 (a) Surface 21 20 1:10PM Mid-depth 54 12 Bottom 58 13 (a) 1:30PM Surface Mid-depth Bottom 9 13 20 Table 10 (continued) Tide cycle: 2-3 hours after low tide Parts per million Date Position Stations 8 9 10 11 1938 May 7 (a) Surface 10 1:45PM Mid-depth 13 Bottom 15 (a) Surface 11 2:OOPM Mid-depth 11 Bottom 16 Table 11 Tide cycle: 3-4 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Nov* 18 (a) Surface 7 7:45 PM Mid-depth 9 Bottom 7 (a) Surface 7 8:00PM Mid-depth 11 Bottom 7 (a) Surface 7 8:15PM Mid-depth 5 Bottom 5 (a) Surface 9 8:30FM Mid-depth 7 Bottom 7 Nov, 20 (a) Surface 11 9:00AM Mid-depth 15 Bottom 12 (a) Surface 13 9:15AM Mid-depth 12 Bottom 12 (a) Surfac e 19 9:30AM Mid-depth 19 Bottom 17 Nov, 21 (a) Surface 11 10:00AM Mid-depth 17 Bottom 16 (a) Surface 15 10:15AM Mid-depth 19 Bottom 17 (a) Surface 17 10:30AM Mid-depth 20 Bottom 19 Nov, 22 (a) Surface 7 10:45AM Mid-depth 9 Bottom 9 (a) Surface 7 11:00AM Mid-depth 9 Bottom 9 Table 11 (continued) Tide cycle: 3-4 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Nov. 22 (a) Surface 9 11:15AM Mid-depth 9 Bottom 9 (a) Surface 9 11:30AM Mid-depth 11 Bottom 7 Nov. 23 (a) Surface 69 11:45AM Mid-depth 400 Bottom 540 (a) Surface 45 12:00AM Mid-depth 520 Bottom 920 (a) Surface 53 12:15PL1 Lid-depth 420 Bottom 920 (a) Surface 91 12:30PM Mid-depth 640 Bottom 1,360 Dec. 1 (a) Surface 7 7:00AM Mid-depth 5 Bottom 5 (a) Surface 5 7:15AM Mid-depth 3 Bottom 5 Dec. 2 (a) Surface 7 7:OOAM Mid-depth 3 Bottom 4 (a) Surface 3 7:15AM Mid-depth 5 Bottom 4 (a) Surface 7 7:30AM Mid-depth 5 Bottom 3 (a) Surface 5 7:45AM Mid-depth 5 Bottom 5 Table 11 (continued) Tide oycle: 3-4 hours after low tide Date 1937 Dec. 2 (a) 8: 00 AH Dec. 3 (a) 8:OOAM (a) 8:15AM (a) 8:30AM Dec. 4 (a) 9:00AM (a) 9:15AM (a) 9:30 AM (a) 9:45AM Dec. 6 (a) 10:00AM (a) 10:15AM (a) 10:30AM Dec. 7 (a) 11:OOAM Parts per million Position Stations 8 9 10 11 Surface 5 Mid-depth 3 Bottom 5 Surface 4 Mid-depth 5 Bottom 9 Surface 4 Mid-depth 3 Bottom 5 Surface 4 Mid-depth 5 Bottom 7 Surface 161 Mid-depth 2,550 Bottom 2,350 Surface 61 Mid-depth 2,950 Bottom 2,350 Surface 320 Mid-depth 2,900 Bottom 2,600 Surface 400 Mid-depth 3,900 Bottom 2,600 Surface 7 Mid-depth 400 Bottom 1,200 Surface 15 Mid-depth 860 Bottom 1,300 Surface 23 Mid-depth 960 Bottom 3,700 Surface 37 Mid-depth 65 Bottom 1,720 Table 11 (continued) Tide cycle: 3-4 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Dec. 7 (a) Surface 37 11:15AJ.I Mid-depth 1,020 Bottom 1,960 Dec. 8 (a) Surface 11 11:15AM Mid-depth 13 Bottom 300 (a) Surfo.ce 11 11:30AM Mid-depth 11 Bottom 63 (a) Surface 9 11?45AM Mid-depth 11 Bottom 300 (a) Surface 11 12:00AM Mid-depth 11 Bottom 400 Dec. 9 (a) Surface 5 12:15PM Mid-depth 5 Bottom 5 (a) Surface 5 12:30PM Mid-depth 5 Bottom 9 (a) Surface 7 12:45PM Mid-depth 6 Bottom 5 Dec. 10 (a) Surface 131 1:15PM Mid-depth 29 Bottom 1,010 (a) Surface 17 1:30PM Mid-depth 23 Bottom 750 (a) Surface 11 1:45PM Mid-depth 27 Bottom 230 Dec. 18 (a) Surface 1,000 8:OOAM Mid-depth 6,400 Bottom 7,800 Table 11 (continued) Tide cycle: 3-4 hours after low tide Date 1937 Dec. 18 (a) 8:15AH (a) 8:30AM Dec. 20 (a) 10:00AM (a) 10:15AM Dec. 24 (a) 1:30PM (a) 1:45PM (a) 2:00PM 1938 Jan. 7 11:50AM Jan. 15 (a) 7:OOAM (a) 7:10AM (a) 7:20AM Parts per million Position Stations 8 9 10 11 Surface 7,400 Mid-depth 1,000 Bottom 5,000 Surface 1,700 Mid-depth 5,200 Bottom 7,600 Surface 11 Mid-depth 13 Bottom 15 Surface 13 Iviid-depth 17 Bottom 13 Surface 260 Mid-depth 2,400 Bottom 4,200 Surface 260 Mid-depth 2,500 Bottom 4,500 Surface 280 Mid-depth 2,400 Bottom 5,000 Surface Mid-depth Bottom 119 370 1,700 122 1,740 5,350 159 3,400 480 Surface Mid-depth Bottom 710 9,450 9,800 Surface Mid-depth Bottom 820 9,600 10,000 Surface Mid-depth Bottom 810 7,200 10,450 Table 11 (continued) Tide cycle: 3-4 hours after low tide Parts per million Date Position Stations 8 9 10 11 1938 Jan. 15 (a) Surfaoe 1,060 7: SOAK Mid-depth 10,300 Bottom 10,800 Jan. 17 (a) Surface 5,800 9:00AM Mid-depth 6,850 Bottom 7,600 (a) Surface 7,700 9:10AM Mid-depth 6,500 Bottom 8,600 Jan. 18 Surface 1,200 10:00AM Mid-depth 5,700 Bottom 8,100 Jan. 19 (a) Surface 900 10:00AM Mid-depth 3,500 Bottom 5,100 (a) Surface 790 10:15AM Mid-depth 2,800 Bottom 5,500 (a) Surface 1,130 10:30AM Mid-depth 5,4-00 Bottom 7,300 (a) Surface 900 10:45AM Mid-depth 4,500 Bottom 8,100 Jan. 20 (a) Surface 850 11:00AM Mid-depth 2,150 Bottom 4,900 (a) Surface 470 11:15AM Mid-depth 2,650 Bottom 4,450 (a) Surface 490 11:30AM Mid-depth 2,750 Bottom 5,200 (a) Surface 860 11:45AM Mid-depth 2,350 Bottom 4,750 119 Table 11 (continued) Date 1938 Jan. 21 (f) 11:57AM (12 (f) 12:12PM (12 (f) (f) Jan. 22 (f) (f) (f) (f) Feb. 2 (a) 9:00AM (a) 9:15AM (a) 9:30AM (a) Position Tide cycle: 3-4 hours after low tide Parts per million Stations 8 10 11 12 9:45AM Surface 620 Mid-depth 2,800 Bottom 5,700 Surface 660 Mid-depth 2,500 Bottom 5,850 Surface 540 Mid-depth 2,600 Bottom 6,700 Surface 580 Mid-depth 5,000 Bottom 6,350 Surface 750 Mid-depth 2,400 Bottom 5,900 Surface 910 Mid-depth 5,200 Bottom 10,100 Surface 880 Mid-depth 6,100 Bottom 9,100 Surface 980 Mid-depth 7,550 Bottom 11,600 Surface 5 Mid-depth 4 Bottom 6 Surface 7 Mid-depth 8 Bottom 8 Surface 7 Mid-depth 4 Bottom 8 Surface 13 Mid-depth 6 Bottom 10 Table 11 (continued) Tide cyole; 3-4 hours after low tide Date 1938 Feb. 3 (a) 10:OOAM (a) 10:15AM (a) 10:30AM Position Surface Mi d-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom Parts per million Stations 5 10 11 5 6 8 7 4 8 5 9 9 Feb. 4 11:00AM Surface Mid-depth Bottom 7 5 9 Feb. 6 (a) 12:05PM Surface Mid-depth Bottom 5 6 5 9 5 5 10 6 9 (a) 12:35PM Surfac e Mid-depth Bottom 7 5 8 5 10 19 8 6 6 Feb. 7 (a) 1:05PM Surface Mi d-depth Bottom 7 5 7 11 3 5 9 5 11 (a) 1:35PM Surface Mid-depth Bottom 7 9 5 4 5 5 18 5 5 Feb. 8 (e) Surface 2:50PM (12A) Mi d-depth Bottom Feb. 9 (e) Surface 3:17PM (12A) Mi d-depth Bottom (a) Surface 3 3 3 3:35PM Mid-depth 3 3 3 Bottom 3 7 5 Feb. 10 Surface 3 5 3 4:20PM Mid-depth 11 3 5 Bottom 3 13 9 Table 11 (continued.) Tide oycle: 3-4 hours after low tide Parts per million Date Position Stations 8 9 10 11 12 1938 Feb. 19 Surface 7 7 8 11:35AM Mid-depth 68 9 11 Bottom 320 27 13 Feb. 20 Surface 620 1:00PH Mid-depth 3,000 Bottom 2,500 Feb. 22 Surface 8 20 19 2:55PM Mid-depth 1,540 ' 159 131 Bottom 4,800 3,100 4,200 Feb. 23 Surface 9 7 11 3:50PM Mid-depth 47 41 24 Bottom 2,950 1,900 1,500 Feb. 24 Surface 300 360 450 4:45PM Mid-depth 4,600 5,400 3,100 Bottom 9,200 7,000 11,000 Feb. 26 Surface 320 6:00AM Mid-depth 7,800 Bottom 8,800 Mar. 8 Surface 8 9 10 1:20PM Mid-depth 11 8 13 Bottom 9 8 14 Mar. 9 Surface 156 178 281 2:25PM Mid~depth 890 600 290 Bottom 2,200 1,400 1,500 Mar. 10 Surface 1,000 610 340 3:35PM Mid-depth 8,850 4,500 2,000 Bottom 12,050 7,950 8,500 Mar. 21 Surface 11 11 9 15 15 12:00AM Mid-depth 11 12 8 13 16 Bottom 223 17 9 16 26 Mar. 22 Surface 8 8 8 6 11 1:00PM Mid-depth 33 6 9 10 17 Bottom 2,000 9 7 16 22 Mar. 23 Surface 8 3 6 6 6 2:25PM Mid-depth 9 4 5 6 7 Bottom 2,950 S 10 15 5 Table 11 (c ontinued) Tide oyole: 3-4 houra after low tide Parts per million Date Position Stations 8 9 10 11 12 1938 Mar. 24 Surface 7 4 5 4 5 3:15PM Mid •■depth 3 5 4 4 5 Bottom 5 5 3 3 6 Mar. 25 Surface 3 2 3 3 1 4:15PM Mid-depth 2 2 3 4 3 Bottom 5 3 4 4 4 Mar. 29 (a) Surface 4 6:30AM Llid-depth 1 Bottom 2 (a) Surface 1 6:45AM Mid-depth 1 Bottom 3 Apr. 8 (a) Surface 4 2:35PM Mid-depth 7 Bottom 15 (a) Surface 17 6 5 3 3:30PM Hid-depth 7 6 5 4 Bottom 4 9 6 5 Apr. 9 (a) Surface 8 8 3:40PM Mi d-depth 21 11 Bottom 1,220 39 (a) Surft.ce 14 15 33 4:30PM Hid-depth 96 70 33 Bottom 600 950 82 Apr. 10 (a) Surface 4 4 3 4:40PM Mid-depth 5 5 3 Bottom 3 7 3 (a) Surface 7 6 5:25PM Mid-depth 6 5 Bottom 5 11 Apr. 21 (a) Surface 1 1 2 1:05PM Mi d-depth 2 3 2 Bottom 2 4 1 (a) 1:50EL1 Surface Mid-depth Rirhl.nm 3 3 3 Table 11 (continued) Tide oycle: 3-4 hours after low tide Date Position Parts per million Stations 9 10 11 1938 Apr. 22 (a) 2:30PM Surface Mid-depth Bottom 3 3 3 2 5 2 2 1 3 6 6 6 Apr. 27 (a) Surface 2 3 21 5:45AM Mid-depth 4 2 4 Bottom 4 5 5 (a) Surface 3 6:00AM Mid-depth 4 Bottom 3 (a) Surface 9 6:15AM Mid-depth 3 Bottom 2 Apr. 28 (a) Surface 5 4 6 6:40AM Mid-depth 4 3 5 Bottom 6 5 8 (a) Surface 4 7:00AM Mid-depth 2 Bottom 6 Apr. 30 Surface 7 8:30AM Mid-depth 9 Bottom 13 May 1 (a) Surface 7 8 9 8:45AM Mid-depth 5 5 9 Bottom 13 25 9 (a) Surface 7 9:OOAM Mid-depth 7 Bottom 25 (a) Surface 7 9:15AM Mid-depth 9 Bottom 10 May 2 (a) Surface 7 9:20AM Mid-depth 7 Bottom 7 (a) Surface 6 9:30AM Mid-depth 7 — 14 Table 11 (continued) Tide oyole: 3-4 hours after low tide Parts per million Date Position Stations 8 9 10 11 1938 May 2 (a) Surface 7 9:45AM Mid-depth 6 Bottom 14 (a) Surface S 10:00AM Mid-depth 8 Bottom 12 May 3 (a) Surface 8 7 10 10:15AM Mid-depth 14 8 11 Bottom 15 14 12 (a) Surface 7 1Q:30AM Mid-depth 9 Bottom 11 (a) Surface 7 10:45AM Mid-depth 10 Bottom 13 (a) Surface 9 11:00AM Mid-depth 13 Bottom 14 May 4 (a) Surface 7 8 9 11 11:19AM Mid-depth 10 13 15 15 Bottom 11 14 22 21 (a) Surface 12:04PM Mid-depth Bottom May 5 (a) Surface 13 12:15EM Mid-depth 12 Bottom 19 (a) Surface 9 12:30PM Mid-depth 15 Bottom 20 (a) Surface 16 12:45PM Mid-depth 20 Bottom 21 (a) Surface 24 1:00PM Mid-depth 26 iflttpm 26 155 Table 11 (a< ontinued) Tido oyole: 3-4 hours Parts after low tide per million Date Position Stations 8 9 10 11 12 1938 May 6 (a) 1:15PM Surface Mid-depth Botton 59 124 232 (a) 1:30PM Surface Mid-depth Bottom 55 135 200 May 6 (a) 1:45m Surface Mid-depth Bottom 45 288 530 (a) 2:00PM Surface Mid-depth Bottom 215 460 680 May 7 (a) 2:15PM Surface Mid-depth Bottom 15 13 43 (a) 2:30PM Surface Mid-depth Bottom 12 39 52 (a) 2:45PM Surface Mid-depth Bottom 20 30 67 (a) 3:00PM Surface Mid-depth Bottom 25 112 139 May 9 4:45PM Surface Mid-depth Bottom 900 5,600 9,100 900 6,200 7,400 500 1,000 8,300 May 10 5:36PM Surface Mid-depth Bottom 330 350 1,350 May 11 6:37AM Surface Mid-depth Bottom 330 300 700 600 1,450 1,750 400 400 450 May 13 (a) 7:10AM Surface Mid-depth Brrbttpm 480 1,160 1,990 330 700 740 260 350 490 Table 11 (continued) Tide cyole: 3-4 hours after low tide Parts per million Date Position Stations 8 9 10 11 1938 May 13 (a) 7:30AM Surface Mid-depth Bottom 270 910 800 (a) 7:45AM Surface Mid-depth Bottom 320 820 1,000 (a) 8:00AM Surface Mid-depth Bottom 300 850 1,350 May 20 12:50PM Surface Mid-depth Bottom 18 320 1,550 10 400 830 7 8 570 May 21 1:45PM Surface Mid-depth Bottom 54 4,400 8,450 182 1,320 5,450 17 203 5,650 June 24 5:30AM Surface Mid-depth Bottom 1,700 4,900 10,050 July 6 4:45AM Surface Mid-depth Bottom 1,300 9,200 7,450 Aug. 24 6:50AM Surface Mid-depth Bottom 2,400 6,600 7,250 2,300 4,150 5,950 1,400 4,100 5,150 Table 12 Tide cycle: 4-5 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Nov. 18 (a) Surface 15 8:00AM Mid-depth 11 Bottom 13 (a) Surface 11 8:15AM Mid-depth 9 Bottom 11 (a) Surface 7 8:30AM Mid-depth 11 Bottom 11 (a) Surface 9 8:45AM Mid-depth 43 Bottom 15 (a) Surface 5 8:45PM Mid-depth 9 Bottom 7 (a) Surface 9 9:00PM Mid-depth 7 Bottom 7 (a) Surface 7 9:15PM Mid-depth 7 Bottom 7 (a) Surface 6 9:30PM Mid-depth 7 Bottom 9 Nov. 19 (a) Surface 23 9:00AM Mid-depth 55 Bottom 79 (a) Surface 19 9:15AM Lid-depth 19 Bottom 21 (a) Surface 23 9:3QAM Mid-depth 21 Bottom 21 (a) Surface 23 9:45AM Mid-depth 290 Rn-H-.ran 240 Table 12 (continued) Tide cycle J 4-5 hours after low tide Date 1937 Nov. 20 (a) 9:45AM (a) 10:00AM- (a) 10:15AM (a) 10:30AM Nov. 21 (a) 10:45AM (a) 11:00AM (a) 11:15AM (a) 11:30AM Nov. 22 (a) 11:45AM (a) 12:00AM (a) 12:15PM (a) 12:30PM Parts per million Position Stutions 8 9 10 11 Surface 20 Mid-depth 20 Bottom 18 Surface 22 Mid-depth 24 Bottom 19 Surfa ce 51 Mid-depth 3,150 Bottom 8,950 Surface 54 Mid-depth 2,050 Bottom 9,200 Surface 24 Mid-depth 22 Bottom 24 Surface 23 Mid-depth 153 Bottom 312 Surface 28 Mid-depth 2,900 Bottom 6,400 Surface 640 Mi d-depth 5,800 Bottom 9,550 Surface 20 Mid-depth 45 Bottom 41 Surface 24 Mid-depth 35 Bottom 4-0 Surface 23 Mi d-depth 43 Bottom 40 Surface 23 Mid-depth 29 Bottom 48 Table 12 (continued) Tide oycle: 4-5 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Nov. 23 (a) Surface 93 12:45PM Mid-depth 300 Bottom 1,600 (a) Surface 151 1:00PM Mid-depth 660 Bottom 1,800 (a) Surface 157 1:15PM Mid-depth 3,350 Bottom 4,900 (a) Surface 139 1:30PM Mid-depth 2,700 Bottom 4,800 Nov. 27 (a) Surface 3,850 5: OOKMu Mid-depth 10,200 Bottom 11,100 (a) Surface 10,650 5:15AM Mid-depth 10,600 Bottom 10,800 Nov. 30 (a) Surface 15 7:00AM Mid-depth 5 Bottom 5 (a) Surface 5 7:15All iiid-depth 5 Bottom 5 (a) Surface 5 7:30AM Mid-depth 5 Bottom 3 Dec. 1 (a) Surface 9 7:30AM Mid-depth 3 Bottom 3 (a) Surface 9 7:45AM Mid-depth • 5 Bottom 7 (a) Surface 4 8:00AM Mid-depth 3 Table 12 (continued) Tido cyclos 4-5 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Dec. 1 (a) Surface 4 8:15AM Mid-depth 3 Bottom 5 Dec. 2 (a) Surface 5 8:15AM Mid-depth 5 Bottom 3 (a) Surface 3 8:30AM Mid-depth 3 Bottom 5 (a) Surface 5 8:45AM Mid-depth 7 Bottom 3 (a) Surfaco 5 9:00AM Mid-depth 3 Bottom 5 Dec. 3 (a) Surface 5 8:45AM Mid-depth 3 Bottom 5 (a) Surface 5 9:00AM Mid-depth 7 Bottom 5 (a) Surfaco 4 9:15AM Mid-depth 5 Bottom 5 (a) Surface 4 9:30AM Mid-depth 97 Bottom 860 Dec. 4 (a) Surface 380 10:00AM Mid-depth 3,000 Bo tt oiu 3,000 (a) Surface 210 10:15AM Mid-depth 3,400 Bottom 3,450 (a) Surface 75 10:30AM Mid-depth 7,750 o r\rr r\ Table 12 (continued) Tide cycle: 4-5 hours after low tide Parts per million Date Position Stations 8 9 10 11 1937 Dec. 4 (a) Surface 82 10:45AM Mid-depth 7,650 Bottom 7,600 (a) Surface 77 11:00AM Mid-depth 6,400 Bottom 9,000 Dec. 5 (a) Surface 78 10:00AM Mid-depth 570 Bottom 1,310 (a) Surface 38 10:15AM Mid-depth 1,070 Bottom 2,600 (a) Surface 19 10:30AM Mid-depth 3,500 Bottom 5,150 (a) Surface 23 10:45AM Mid-depth 5,750 Bottom 6,850 Dec. 6 (a) Surface 33 10:45AM Mid-depth 1,780 Bottom 5,400 (a) Surface 131 11:00AM Mid-depth 3,800 Bottom 4,800 (a) Surface 173 11:15AM Mid-depth 740 Bottom 7,000 (a) Surface 143 11:30AM Mid-depth 3,900 Bottom 9,600 Dec. 7 (a) Surface 35 11:30AM Mi d-depth , 35 Bottom 2,000 (a) Surface 27 11:45AM Mid-depth 39 Bottom 1,180 Table 12 (continued) Tide cycle: 4-5 hours after low tide Date 1937 Dec* 7 (a) 12:00AM (a) 12-.15FM Dec. 8 (a) 12:15PM (a) 12:30PM (a) 12:45PM (a) 1:00PM Dec. 9 (a) 1:00PM (a) 1:15PM (a) 1:30PM (a) 1:45PM Dec. 10 (a) 2:00PM (a) 2:15PM Parts per million Position Stations 8 9 10 11 Surface 27 Mid-depth 1,200 Bottom 1,440 Surface 23 Mid-depth 53 Bottom 1,860 Surface 13 Mid-depth 11 Bottom 360 Surface 29 Mid-depth 33 Bottom 340 Surface 29 Mid-depth 37 Bottom 1,860 Surface 33 Mid-depth 87 Bottom 1,320 Surface 7 Mid-depth 4 Bottom 7 Surface 7 Mid-depth 7 Bottom 7 Surface 7 Mid-depth 5 Bottom 5 Surface 7 Mid-depth 7 Bottom 7 Surface 9 Mid-depth 13 Bottom 1,050 Surface 13 Mid-depth 13 Bottom 490 Table 12 (continued) Tide cycles 4-5 hours after low tide Date 1937 Dec. 10 (a) 2:30PM (a) 2:45PM Dec. 13 5:00AM Dec. 14 6:00AM Dec. 15 (a) 6:00AM (a) 6:15AM (a) 6:30AM (a) 6:45AM Dec. 16 (a) 7:00AM (a) 7:15AM (a) 7:30AM (a) 7:45AM Parts por million Position Stations 8 9 10 11 Surface Mid-depth Bottom 45 660 2,210 Surface Mid-depth Bottom 21 880 2,010 Surface Mid-depth Bottom 1,200 10,700 11,000 Surface Mid-depth Bottom 1,000 4,500 11,000 Surface Mid-depth Bottom 9,300 12,200 12,300 Surf a ce Mid-depth Bottom 9,200 11,200 12,500 Surface Mid-depth Bottom 6,600 9,400 12,900 Surface Mid-depth Bottom 5,300 8,300 10,800 Surface Mid-depth Bottom 12,100 13,100 Surface Mid-depth Bottom 10,200 11,650 12,800 Surface Mid-depth Bottom 12,150 13,450 13,300 Surface Mid-depth Bottom 11,850 15,500 13,400 Table 12 (continued) Tide cycle: 4-5 hours akccr low tide Parts per nillioh Date Position Stations 8 9 10 11 1937 Dec. 17 (a) Surface 5,300 8:OOAM kid-depth 10,700 Bottom 12,500 (a) Surface 5,000 8:15.1'" kid-depth 12,300 Bottom 12,800 (a) Surface 6,400 8:30.'lf. 1.id-depth 11,400 Bottom 13,500 Dec. 18 (a) Surface 4,400 8:45kk kid-depth 9,650 Bottom 9,100 (a) Surface 6,700 9: GO.L kid-depth 10,100 Bottom 9,500 (a) Surface 5,650 9:15.\k i- id-depth 12,200 Bottom 12,600 (a) Surface 6,100 9:30;j: kid-depth 12,100 Bottom 12,600 Dec. 20 (a) Surface 17 10:30.1" I'.id-dopth 19 Bottom 19 (a) Surface 23 10:45.U" kid-depth 25 Bottom 57 (a) Surface 45 11:00.J" kid-depth 2,800 Bottom 5,100 (a) Surface 45 11:15."J.: Lid-depth 5,900 3ottom 8,250 Dec. 24 (a) Surface 580 2:15FL kid-depth 5,100 Bottom 7,800 Table 12 (continued) Position Date Tide cyclo: 1-5 hours after lor; tide Parts per nillion Stations 10 11 1937 Dec. 24 (a) 2; 30?:: Surface id-depth Bottom 760 7,600 7,900 (a) 2:45?I. Surface Lid-depth Boteon 1,060 7,300 8,000 (a) 3-.00PK Surface Lid-depth Botton 1,600 7,200 7,500 1938 Jon. 7 12:50?? Surface Lid-depth Bottom 1,960 5,200 6,200 1,460 4,100 8,900 Jan. 14 (a) 7: 001 J. : Surface Lid-depth Bottom 4,800 11,200 12,600 (a) 7:10, J i Surface Lid-depth Bottom 3,250 10,000 10,700 (a) 7: 20,u. Surface I. id-depth Bottom 2,550 11,900 13,600 (a) 7:30;j: Surface • .id-depth Bottom J, 500 11,900 13,100 Jrn. 15 (a) 7:40, J. Surface Lid-depth Bottom 1,300 11,350 11,200 (a) 7: 50,? Surface Lid-depth Bottom 1,34-0 11,150 12,000 (a) 8: OO.'J Surface Lid-depth Bottom 2,050 11,750 12,400 080 3,900 7,600 (a) Surface 2,100 Table 12 (continued) Tide cycle; 4-5 hours uftor low tide Parts per million Date Position Stations 8 9 10 11 1938 Jan. 15 (a) Surface 5,800 8: 20.ill" Lid-depth 12,850 Bottom 13,450 (a) Surface 3,900 8:3 OX I.id-depth 13,000 Bottom 15,800 Jan. 16 (a) Surfo.ce 2,250 8:30.\H I lid-depth 9,500 Bottom 9,750 (a) Surface 2,700 8:40-'J: 1 "id-depth 9,350 Bottom 9,450 (a) Surface 3,650 8:50.X : .id-depth 9,600 Bottom 10,100 (a) Surface 3,000 9: 00.J! Llid-depth 10,550 Bottom 10,800 (a) Surface 4,200 9:10.X Llid-dopth 11,400 Bottom 11,050 (a) Surface 4,850 9; 20.X Lid-depth 12,350 Bottom 12,050 Jan. 17 (a) Surface 6,400 9; 20ML Hid-depth 8,200 Bottom 8,900 (a) Surface 8,400 9: 3OX. Lid-depth 8,700 Bottom 9,200 (a) Surface 1,700 9:40.X 1 id-depth 9,500 Bottom 10,800 (a) Surface 2,900 9:50.X llid-dopth 8,400 Bottom 10,700 Tabic 12 (continued.) Date 1S38 Jan. 17 (a) 10:00.2." (a) iO:io;j; Jan. 18 (a) iO:io;j: (a) 10:20.2" 10: 50.2. (a) 10:40,2.. (a) (a) io:5o;j: (a) 11:0021.1 Jan. 19 (a) 11:0021" 11; 15djt (a) (a) 11:30-j:: (a) Position 11:45-2. Surfaco 1'id-dcpth Bottom Surface I'.id-dcpth Bottom Surface -'id-depth Bottom Tid-depth 3ottom Surface I lid-depth Bottom Surface aid-depth Bottom Surface } rid-dcpth Bottom Surface I'id-depth Bottom Surfaco hid-depth Bottom Surface ! id-depth Bottom Surface I .id-depth Bottom Surface fid-depth Bottom Tido cycle: 4-5 hours after low tide Parts per million Stations 8 9 10 11 3,700 10,800 11,500 5,000 10,600 12,200 1,600 7,800 9,000 2,000 8,450 9,500 2,500 9,850 10,500 2,600 10,800 10,600 2,700 11,100 10,200 3,200 11,100 11,600 1,140 4,600 7,300 1,400 5,100 9,200 5,050 4,800 8,100 2,000 10,100 10,500 168 Tabic 12 (continued) Date Tido cycle: 4-5 hours after low tide Parts per million Position Stations G 9 10 11 12 1938 Jan. 20 (a) 12:Oo;J: 12:15PP (a) 12:50K1 (a) (a) 12:45PII Jan. 21 (a) 12; 57H: 1:12K: (a) (a) 1: 27PI1 (a) 1: 4 2 PL Jam. 22 (a) 1:54?:. (a) 2:09Plr (a) 2:2414.' (a) 2: 39 Hi Surface I'.id-dcnth ourfacc •fid-depth Bottom Surfa.ee rid-depth Bottom Surface aid-depth Bottom Surface I lid-depth Bottom Surface i-id-depth Bottom Surface I'id-Jepth Bottom Surface L'id-depth Bottom Surface I .id-depth Bottom Surface I,lid-depth Bottom Surface if id-depth Bottom Surface i-fid-dopth B ottom 640 3,600 6,800 1,060 5,450 6,800 840 4,500 5,000 £80 8,700 9,650 570 3,000 6,900 550 5,300 3,500 620 5,800 9,200 620 6,150 10,700 980 6,150 9,400 820 8,100 12,000 930 9,400 12,050 890 11,300 12,600 Table 12 (continued) Tide cycle: 4-5 hours after lew tide Parts per million Date Position Stations e 9 10 11 1938 Feb. 2 (a) Surface 9 10:00LL Mid-depth 12 Bottom 15 (a) Surface 17 10:15AL Mid-depth 6 Bottom 11 (a) Surface 5 10: 30ki' kid-depth 7 Bottom 9 (a) Surface 11 10:45* J! Kid-depth 11 Bottom 13 Feb. 3 (a) Surface 13 10:45A1* kid-depth 15 Bottom 14 (a) Surface 15 11: OOkL Lid-depth 19 Bottom 26 (a) Surface 24 11:15kL Kid-depth 29 Bottom 49 Feb. 4 (a) Surface 5 li: IS:J: Lid-depth 3 Bottom 7 (a) Surface 3 11: 30-J- Lid-depth 7 Bottom 7 (a) Surface 5 11:45AL I id-depth 5 3 ott om 5 (a) Surface 5 12:00:0: kid-depth 9 Bottom 5 Feb. 6 (a) Surface 7 13 8 1:05PK Lib-depth 12 13 16 Bottom 20 7 10 Table 12 (continued) Tido cyclo: 4-5 hours after low tide Parts por million Date Position Stations 8 9 10 11 1938 Fob. 6 (a) 1:35PM Surface Hid-depth Bottom 10 10 9 7 8 9 8 8 14 Fob. 7 (a) 2:05 PI! Surfaco Mid-depth Bottom 7 7 9 5 7 7 5 5 5 (a) 2:35Pi. Surface Mid-depth Bottom 9 5 3 7 7 5 5 7 Feb. 8 3:05E, Surface Mid-depth Bottom 7 5 7 5 9 7 7 7 9 Feb. 9 4:35PH Surface L'id-depth Bottom 5 3 4 5 3 3 3 6 13 Feb. 19 12:3514: Surface Mid-depth Bottom 60 760 2,900 76 360 760 21 24 860 Feb. 20 (a) 1:15R! Surface Kid-depth Bottom 720 4,500 6,800 (a) 1: 30PE Surface : *.id-depth Bottom 740 6,900 8,700 (a) 1:45PK Surface Mid-depth Bottom 880 8,600 9,900 (a) 2:00Fm Surface Mid-depth Bottom 900 8,050 10,900 Feb. 25 (a) 6:00,1! Surface Kid-depth Bottom 6,400 10,800 15,650 (a) 6:15KK Surface Kid-depth Bottom 2,800 10,800 13,700 171 Table 12 (continued) Tide cycle: CO G in i after low tide Parts per million Date Position Stations 8 9 10 11 12 1936 Feb. 26 (a) 6:15AT. Surfaco liid-depth Bottom 260 6,800 10,900 (a) 6:30.1.1 Surface Mid-depth Bottom 340 10,500 12,200 « (a) 6:45x1.1 Surface Mid-depth Bottom 1,590 9,500 10,800 (a) 7: OOiiM Surface Ilid-depth Bottom- 1,820 10,300 12,000 Feb. 27 (a) 7:OQ.lC Surface Ivlid-depth Bottom 880 7,300 9,700 (a) 7:15LM Surface Kid-depth Bottom '800 9,150 11,750 (a) 7: SOAK Surface Lid-depth Bottom 1,000 8,500 11,150 (a) 7:45Ai" Surface Lid-depth Bottom 2,450 8,500 11,300 Lar. 21 1: OOR" Surface Lid-depth Bottom 62 780 15 235 1,230 10 10 26 20 270 1,000 13 18 18 Mar. 22 2: OOR" Surface Kid-depth Bottom 17 1,150 3,100 13 20 670 13 9 7 9 16 850 19 11 11 Mar. 27 (a) 6:00.1.1 Surface Kid-depth Bottom- 3 1 3 (a) 6:15nL Surface 1,id-depth Bottom 2 1 2 Table 12 (continued) Date Position Tirle cycle: 4-5 hours after lor; tide Parts per million Stations 8 10 11 1S38 liar. 27 (a) 6:30 ALL liar. 29 (a) 7:00-1! 7:15. J.' (a) (a) 7: SOAK (a) 7: 45.1: Surface I "id-depth 3otton Surface I«lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth 3ottom 2 1 2 3 3 3 7 4 1 3 1 5 1 2 Apr. 8 3: 3 5 FT- . : Apr. 9 4:35PK Apr. 10 5:3 5 PA Apr. 21 2:05H! Apr. 27 (a) 6:30AL (a) 6:45AJ.I Surface Llid-depth Bottom Surface Llid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom 5 11 490 360 2,550 6,100 5 6 5 r* o 2 2 101 800 1,780 5 5 2 2 2 3 4 4 o 5 4 4 5 2 2 ry o 5 2 4 (a) 7:00-1' Surface Lid-depth Bottom 3 4 3 Table 12 (continued) Date Position Tide cycle: 4-5 hours after low tide Parts per million Stations 10 11 1938 Apr. 27 (a) * 7:15All Apr. 28 (a) 7:15AI. (a) 7: 30AA; (a) 7: 4 5 AM 8;00AL (a) Surface Mid-depth Bottom Surface Mid-depth Bottom Surface Mid-depth Bottom 3i-.rface Lid-depth Bottom Surface Lid-depth Bottom 3 1 7 3 4 7 2 4 6 3 4 3 2 4 A Apr. 29 Surface 7 5 5 8 8:1541? Ivlid-depth 7 9 8 10 Bottom 5 9 9 13 Apr. 30 (a) 8: 45AM (a) 9: 00AI: (a) 9:154J.: (a) 9:30AL Lay 1 (a) 9:30AM (a) 9:45441 Siirface Mid-depth Bottom Surface Mid-depth Bottom Surface Lid-depth Bottom Surface Lid-depth Bottom Surface I lid-depth Bottom Surface Mid-depth Bottom 7 9 45 11 12 69 13 15 44 30 210 7 6 13 9 8 10 Table 12 (continued) Date Position Tide oyclo: 4-5 hours aftor low tide Parts por million Stations 1938 May 1 (a) 10:00AM (a) 10:15AH May 2 (a) 10:15A1: (a) 10:30AM (a) 10:45AM (a) 11:00AM May 3 (a) 11:15AM (a) 11:30AM (a) 11:45AM (a) 12:00 Ml May 4 (a) 12:19FM 10 11 Surface 8 Mid-depth 10 Bottom 15 Surface 11 Mid-depth 11 Bottom 11 Surface 6 Mid-depth 7 Bottom 15 Surface 11 Mid-depth 9 Bottom 9 Surface 13 Mid-depth 13 Bottom 13 Surface 19 Mid-depth 19 Bottom 17 Surface 15 Mid-depth 17 Bottom 20 Surface 23 Mid-depth 23 Bottom 20 Surface 35 I id-depth 41 Bottom 550 Surface 32 Mid-depth 2,850 Bottom 7,050 Surface 27 25 20 29 Mid-depth 28 23 21 24 Bottom 25 O 0 to (a 22 28 (a) 1:04PM Surface Mid-depth Bottom Table 12 (continued) Tido cycle; 1-5 hours after low tide Paris por nillion Date Position Stations 8 9 10 11 1938 hay 5 (a) Surface 43 1:15 PI" Mid-dopth 44 Bottom 40 (a) Surface 56 1:30PI.I Mid-depth 110 Bottom 280 (a) Surface 104 1:45PI ] -fid-depth 2,700 Bottom 0,300 (a) Surface 129 2:00?L: Mid-depth 4,900 Bottom 9,250 May S (a) Surface 260 2:15PM Mid-depth 540 Bottom 870 (a) Surface 340 2:30FL1 Mid-depth 1,230 Bottom 2,050 (a) Surface 370 2:45 Pi Mid-dopth 1, 750 Bottom 3,950 (a) Surface 410 3:00PM Mid-depth 2,250 Bottom 8,000 May 7 (a) Surface 45 3:15PM Mid-depth 173 Bottom 206 (a) Surface 55 3:30FM Mid-depth 710 Bottom 880 (a) Surface 61 3:45PM Mid-depth 2,150 Bottom 5,700 (a) 4: OOP. Surface Mid-depth "Jot ton 131 5,150 7,150 Tabic 12 ( continued) Tide cycle: i-5 hours Parts after low tide por million Date Position Stations 8 9 10 11 12 1938 • Hay 8 4:25PL Surface Mid-depth Bottom 650 9,600 9,500 3,290 8,850 9,800 510 7,200 9,400 May 9 (a) 5: 00-4.1 Surface Kid-dopth Bottom 790 5,300 6,900 (a) 5:15/J.I Surface ?'id-dopth Bottom 740 5,750 7,900 (a) 5: 30 AM Surface Mid-depth Bottom 1,130 7,650 9,500 May 10 (a) 5: 5 lit" Surface Mid-depth Bottom 810 3,150 4,000 490 1,500 3,400 470 1,100 1,700 260 700 2,900 (a) 6:36 AM Surface Mid-depth Bottom 560 700 500 May 11 (a) 6:4 2 MM Surface 1: id- depth Bottom. 610 2,450 2,900 490 950 1,550 (a) 7:42AM Surface Mid-depth Bottom 560 7,250 9,250 740 4,000 6,800 700 2,450 8,600 580 700 1,500 May 13 (a) 8:15j.il"" Surface Mid-depth Bottom 310 750 1,550 (a) 8:30AM Surface Mid-depth Bottom 720 2,350 2,550 (a) 8: 4 5 AM Surface Mid-depth Bottom 640 4,150 4,850 :ay 18 Surface 23 12:36PM Mid-depth 24 Bottom 26 Table 12 (continued) Tide cyclo: 4-5 hours after low tide Parts per million Date Position Stations 8 9 10 11 1938 Hay 19 Surface 15 15 18 1:05PM Hid-dcpth 1,130 12 16 Bottom. 7,000 58 51 Hay 20 Surface 48 25 30 1:50PII Hid-depth 3,450 1,500 360 Bottom 7,250 5,600 4,700 Hay 21 Surface 161 270 67 2:45PM. Mid-depth 10,600 8,850 1,850 Bottom 12,200 11,450 11,800 June 8 Surface 2,400 1,400 760 5:35PH I "id-depth 6,300 4,400 5,000 Bottom 8,300 6,250 6,100 June 9 Surface 2,500 1,800 1,100 6: 3 Sib 1 Hid-depth 9,100 7,600 5,300 Bottom 9,800 7,950 9,350 June 10 Surface 2,800 2,000 1,200 7:35MK Mid-depth 9,450 6,300 6,800 Bottom- 9,750 7,250 7,000 June 11 Surface 2,800 2,300 1,300 8:05-J id-depth 8,850 7,200 8,050 Bottom 10,350 7,950 9,350 June 12 Surface 3,900 1,100 1,600 8: 35-iI Mid-depth 8,750 6,200 6,150 B ot torn 9,450 7,400 7,300 June 13 Surface 2,450 1,900 1,450 9: 35-2 ' ] •id-depth 10,700 8,750 9,350 Bottom 11,650 9,600 9,400 June 14 Surface 1,050 690 190 10:05-4.1 1 iid-depth 4,650 3,200 550 Bottom 7,200 3,800 2,950 June 15 Surface 64 100 30 10:55AH Llid-depth 7,200 2,700 32 Bottom 8,550 5,450 6,600 June 16 Surface 600 53 11:35AM I'id-dopth 8,550 5,250 600 Bottom 10,400 7,600 7,800 Table 12 (continued) Tide cycle: 4-5 hours after lovr tide Parts per million Date Position Stations 8 9 10 11 1938 June 17 Surface 570 580 590 12: 20PK Lid-depth 10,700 9,000 2,950 Bottom 11,200 10,200 9,950 June 18 Surface 1,480 1,280 1,140 1:05HS Kid-depth 11,650 10,750 8,650 Bottom 10,450 11,300 11,250 June 19 Surface 1,950 1,750 2,150 1:35P1.:. Kid-c-epth 975 5,850 6,600 Bottom 10,100 10,000 9,550 June 20 Surface 7,100 5,200 3,600 2:35PL Kid-depth 13,400 10,400 12,800 Bottom 13,700 13,350 13,650 June 21 Surface 4,800 4,100 3,700 3:35PK i .id-deoth j. 11,400 11,4-00 5,600 Bottom 11,400 13,550 13,300 June 22 Surface 4,900 5,650 2,500 3:SOAK 1' id-depth 12,650 11,600 1,145 Bottom 13,4-50 12,050 12,4-50 June 23 Surface 3,500 3,400 4:35AK Kid-depth 9,250 7,350 8,2 oO Bottom 10,550 8,300 8,400 June 24 Surface 3,200 5,100 5:3 5. J' Kid-depth 10,850 8,750 Bottom 10,950 10,300 June 25 Surface 3,350 2,750 2,500 G: 20AK Kid-depth 9, oOO 7,800 6,800 Bottom 10,600 7,800 8,950 June 26 Surface 3,950 4,500 3,700 7:2OAK Kid-depth 8,150 6,000 5,050 Bottom 9,250 7,450 7,4-50 June 27 Surface 5,950 5,200 4,150 8: 20.J' Kid-depth 12,350 10,500 7,800 Bottom IS,650 10,800 11,500 June 28 Surface 2,550 2,550 1,500 9:20i J.i Kid-depth 7,300 4,500 4,150 Bottom 10,750 8,700 6,800 Table 12 (continued) Tide cyclo: ■1-5 hours after low tide P J"S3 per million Date Position i Stations 8 9 10 11 1238 June 29 Surface 50 18 21 10:03.1. Lid-depth 53 20 24 Bottom 22 54 30 June 30 Surface 26 16 25 11:053? aid-depth 32 17 17 Bottom 31 20 41 July 1 Surface 940 62 29 12:05?!: Lid-depth 5,550 990 166 Bottom 8,600 3,000 3,700 July 2 Surface 510 158 173 1: 0 5?i: ' id-depth 10,550 G, 150 4,650 Bottom 11,300 9,150 9,000 July 3 Surface 1,080 1,320 940 1: 50PL- hi d-e'eoth 11,650 9,200 9,600 B ott on 12,400 10,400 10,600 July 4 Surface 2,200 2,650 1,000 2:50?? hid-depth 1S,750 11,250 12,850 Bottom 15,500 9,900 12,650 July 5 Surface 1,600 2,300 1,250 3:35?:.. Lid-depth 12,800 9,5 50 9,150 Sot ton 12,800 11,550 12,050 July 6 Surface 2,300 2,250 4:50.1" 1 id-depth 10,950 8,100 Bottom 11,600 10,450 July 7 Surf aco 1,850 5:45,11 Lid-depth 11,650 Bottom 12,350 July 8 Surface 1,500 6:45.51.; 1 id-depth 10,450 Bottom 11,850 July 9 Surface 2,350 7: SOiil. i.'id-dopth 11,650 Bottom 12,050 July 10 Surface 5,200 2,850 2,500 7:5O;J: Lid-depth 10,550 7,700 8,950 Bottom 11,900 10,700 11,450 Table 12 (c-ont inued) Tide cycle Date Position 8 1938 July 11 8: 3 5BJ." Surfaco 1 'id-depth Botton 4,600 9,150 12,300 July 12 9:05ALI Surface Lid-depth Bottom 4,850 10,600 12,450 July 13 9: 50. J '. Surface 1.id-depth Bottom 2,650 9,650 10,500 July 14 10:20JU ; Surface Lid-depth Bottom 1,650 7,550 10,700 July 15 11:05TJL Surface I .'id-depth Bottom 800 8,800 9,750 July 16 11: 50/il.- Surface Hid-depth Bottom 1,350 11,200 11,850 July 17 12: 2 OPlvI Surface I. id-depth Bottom 5,100 11,950 12,150 July 18 1:05H1 Surface Mid-depth Bottom 5,550 13,400 13,750 July 19 2: 05FL Surface Lid-depth Bottom 3,950 12,450 13,000 July 20 2:50B1 Surface Lid-depth Bottom 750 12,200 12,700 July 22 4:35 PL Surface Lid-depth Bottom 23 85 5,400 Julv 25 Surface 9 '-5 hours i'.fter low tide f'ai ts per million S tations 9 10 11 / 3,550 2,850 9,550 11,400 10,700 11,600 4,300 3,900 7,600 9,200 11,550 11,800 1,800 1,850 6,850 4,650 9,200 9,150 1,300 950 8,100 6,050 9,950 9,350 580 420 5,000 2,950 8,900 8,450 950 850 7,650 9,800 10,250 11,050 1,950 1,550 10,900 9,200 11,100 11,600 6,750 4,950 8,750 12,100 12,250 12,850 2,550 1,850 9,200 10,450 12,050 12,500 2,250 390 10,950 9,800 11,550 11,900 19 18 20 18 95 133 4- 5 Table 12 (cont lisucd) Tide cycle: 4-5 hours after lory tide farts >or nillion Date Position Stations 8 r> 10 11 1938 July 26 8:50-iU •„ Surface I lid-depth Bottom 6 20 46 July 27 8: 50-J. Surface 1 id-depth Bottom 7 8 12 8 9 9 5 9 25 July 28 9: 50121 Surface Hid-depth Bottom 21 4-40 2,212 26 28 26 16 18 19 July 29 10:3 5AA Surface llid-dopth Bottom 69 4,850 6,300 35 54 36 32 32 40 July 30 11: 2012! 3urxo.ee Llid-e.cpth B ott om 28 1,500 5,600 52 32 34 27 40 39 July 51 12: 20E1 Surface I id-depth Bottom 4 5 6 20 5 14 10 10 57 Aug. 1 1: 2 0H1 Surface j lid-depth Bottom / 13 8 7 7 8 11 8 48 Aug. 2 2: 20H. Surface Eid-d.epth Bottom 15 3,350 7,450 11 9 11 9 18 34 -lug. 3 3:20?-. Surface Aid-depth 3ottom 85 10,300 11,300 29 4,050 10,150 24 940 9,650 Aug. 4 4-.20PL Surface liid-depth Bottom 22 10,400 11,350 36 4,800 10,250 150 1,620 9,750 Aug. 5 4:50.51 Surface L'lid-depth B ot o om 7 14 12 7 8 42 7 6 25 uug. 6 Surface 270 11 Table 12 (continued) Tide cycle: 4-5 hours Part s after 1 o".v tide per million Date Position Stations 8 9 10 11 1938 Aug. 7 7:05AA Surface Aid-depth Bottom 410 9,550 9,950 230 5,500 8,800 -*ug. 8 7: 20 AA Surface Aid-depth Bottom 1,360 10,750 11,500 1,580 5,050 9,550 490 8,700 9,600 Aug. 9 8:S0AK Surface Aid-depth Bottom 1,890 11,800 12,850 Aug. 10 9:05AM Surface Aid-depth Bottom 840 5,600 10,650 470 4,200 9,600 Aug. 11 9:20AL Surface Aid-depth Bottom 1,240 7,650 8,600 1,680 6,800 8,250 1,180 5,750 7,300 Aug. 13 10: 20AiIl Surface Aid-depth Bottom 2,310 10,250 11,100 1,300 6,800 9,400 123 2,250 9,500 Aug. 14 H:05;J: Surface Aid-depth Bottom 6,150 12,500 13,050 1,670 9,250 12,000 1,670 12,000 11,750 Aug. 16 12: 20PM Surface Aid-depth Bottom 2,900 12,300 10,000 2,000 10,750 10,150 1,350 2,900 12,000 Aug. 17 i: 20PM Surface Aid-depth Bottom 1,950 12,600 12,850 1,650 11,450 12,000 1,100 9,600 11,900 Aug. 18 2: 20 P; Surface Aid-depth Bottom 6,150 13,950 14,250 3,750 2,850 13,600 1,350 13,400 13,900 Aug. 19 3:20FM Surface Aid-depth Bottom 3, 250 14,250 14,450 2,800 11,950 13,300 1,400 13,500 13,300 .i-Ug. 20 4: 20Pi: •Jurface Aid-depth Bottom 2,250 13,000 13,000 1,650 8,000 12,500 1,550 10,950 12,400 Table 12 (continued) Tide cycle: 4-5 hours after low tido Parts per million Date Position 3 tations 8 D 10 11 1938 Aug. 21 Surface 2,050 2,800 1,050 5:0 5AI - id-depth 11,150 9,200 9,550 Dot torn 12,150 10,400 11,350 Aug. 22 Surface 2,800 2,900 1,100 6:05AA 1 '.id-depth 13,050 11,000 8,750 Bottom 13,4-50 11,600 12,150 Aug. 23 Surface 2,150 2,250 1,200 6:50AL: Kid-depth 10,100 7,100 4,050 Bottom 11,700 9,900 9,550 Aug, 25 Surface 3,000 5,500 1,550 8:35AJ * : id-depth 12,550 7,500 4,050 Bottom 13,450 8,950 8,250 Aug. 26 Surface 2,900 5,300 2,150 S: 3 5A< - 1 id-depth 13,100 10,950 6,500 Bottom 14,000 12,050 11,600 Aug. 27 Surface 4,250 4,500 2,250 10: 20-A. Aid-depth 14,150 11,150 7,800 Bottom 14,300 13,100 12,450 Aug. 28 Surface 4,950 5,500 1,500 11:05AL liid-rdepth 6,500 5,950 3,950 Bottom 11,200 10,900 7,900 Aug. 29 Surface 4,450 4,800 2,500 12:C5PA i id-depth 14,400 11,950 9,900 Bottom 14,400 15,400 12,750 Aug. 30 Surface 7,450 6,550 3,100 1:05?i: Aid-depth 13,650 12,250 12,800 Bottom 14,550 13,200 13,100 Aug. 31 Surface 3,450 3,200 3,050 1: 50 Pi- L'.id-depth 11,450 10,750 11,500 Bottom 13,250 12,750 12,700 Sept, 1 Surface 2,350 1,900 1,600 2:50PL Aid-depth 12,100 11,750 10,000 Bottom 9,000 11,850 11,350 3ept. 2 Surface 5,200 4,100 2,900 5:50PM Aid-death 14,550 14,250 4,250 Bottom 15,400 11,000 10,050 Table 12 (continued) Date Position Tide cycle: 4-5 hours aftor lev; tide Parts por million Stations e 1S38 Sept. 5 Surface 4:50PL Kid-depth Bottom Sept. 4 Surface 2,350 5:20AM Lid-depth 11,700 Bottom 13,500 Sept. 5 Surface 4,250 6:20-J! I id-depth 12,150 Bottom 13,850 Sept. 6 Surface 6,000 6:50.\I" Lid-depth 11,900 Bottom- 13,4-00 Sept, 7 Surface 9,450 7:50-4. Lid-depth 13,450 Bottom 13,550 Sept. G Surface 8:35-2 1..id-depth Bottom Sept. 9 Surface 6,350 8:50-2" 3"id-depth 10,500 Bottom 12,400 Sept.10 Surface 8,050 9:20-2. ; id-depth Bottom 10,700 Sepe.ll Surface 11,200 9:50.2" 3 id-depth 13,500 Bottom lS-,550 Sept.12 Surface 11,450 10:20.2 Kid-depth 13,800 Bottom 15,300 Sept.13 Surface 12,800 11:20-2. Lid-depth 13,200 Bottom 14,100 Sept.14 Surface 12,000 12:05?! I'id-depth 14,800 Bottom 14-, 800 9 10 11 5,550 3,050 12,000 12,900 13,300 12,850 2,500 2,400 8,300 10,100 10,800 11,750 6,400 500 7,600 10,800 11,200 12,150 4,750 4,450 11,050 12,750 12,500 12,750 7,300 6,250 12,300 12,600 12,450 12,800 6,550 9,050 13,000 13,400 14,400 14,4-00 7,000 6,200 11,150 7,650 11,750 11,200 4,850 3,500 11,700 12,4-50 12,500 12,950 9,050 4,100 10,100 12,350 11,800 12,800 9,350 6,000 12,150 12,850 13,100 13,650 10,650 7,650 13,250 13,150 13,300 13,100 11,750 5,950 12,350 12,000 1-4,350 13,750 Table 12 (continued) Tide cycle: <1—5 hours after low tide Parts por million Date Position Stations C 2 10 11 1938 Sopt. 15 Surface 6,300 5,450 3,750 12:50PL Lid-depth 13,200 11,800 11,650 Bottom 15,600 12,850 12,900 Sept.16 Surface 2,500 3,100 1,850 1:50?L . id-dopth 13,650 13,000 12,850 Bottom 12,900 13,400 13,600 Sept.17 Surface 6,450 2,300 1,450 3:05?i: 1 id-depth 13,500 12,750 13,600 3otton 14,050 13,250 13,550 Sept.19 Surface 940 370 5:05fJi j lid—depth 6,650 .6,400 Bottom 9,150 10,400 Sept.20 Surface 18 12 19 5:50^-ii." 1 id-depth 5,350 19 17 Bottom 7,300 81 118 O*JT) ^«21 Surface 8 11 8 6:35_d: . id-depth 6 " 6 8 Bottom 6 14 11 Sept.22 Surface 10 10 9 7; 35::. I .id-depth 11 10 16 Bottom 13 11 9 Sept.23 Surface 8 9 7 8:20-:: I .id-depth 15 9 10 Bottom 8 11 11 Sept.24 Surface 6 6 5 9:053J' . "id-depth Bottom Sept.25 Surface 10 3 4 C;50:j" i id-depth Bottom Sept.26 Surface 4 4 6 10: 35.4. Lid-depth Bottom Sept.27 Surface 11: 20. J ■ id-depth Bottom Table 12 (continued) Tide cycle; 1-5 hours after lor tide j'arts nor nil lion Date Position Stations G • 0 10 11 1938 Sent.28 Surface A l£ £ O 6 12:05P3. 3 id-depth 1 X Id 5 Bottom 12 3 9 Sept.29 Surface 7 3 4 1:05PL 3' id-depth 6 9 < j 5 Bottom f, 4 5 Sopt.30 Surface 6 5 6 2:05?: I. id-depth 2,670 8 4 Dot tor. 6,800 150 36 Bottom Samples from Station 9A taken at or about High tide. Samples taken one minute apart. The majority of the30 samples fall into Tide Cyole 2, High tide to one hour after; timo Is given for the first sample. Parts per million 1937 Oct. 1 Oct. 9 Oct. 15 9:11AM 14,600 2:23AM 13,000 7:37AM 13,900 14,500 12,600 12,900 14,700 13,900 14,350 15,700 14,150 14,000 15,200 14,250 14,300 15,500 13,100 13,900 Oct. 2 Oct, 10 Oct. 16 9:59PM 14,200 2:57AM 14,200 8:25AM 14,400 15,400 14,900 14,150 15,300 14,900 13,850 15,500 15,000 13,900 15,400 15,100 14,100 15,■£00 15,000 13,900 Oct. 3 Oct. 11 Oct. 17 10:39PM 15,000 3:37AM 15,600 9:19PM 16,100 14,900 15,500 16,100 14,900 15,400 16,250 15,600 15,400 16,150 15,400 15,600 14,800 15,400 15,600 15,750 Oct. 4 Oct. 12 Oct. 13 11:15PM 16,200 4:48AM 14,000 9:56PM 16,500 16,100 14,100 16,500 16,300 13,800 16,600 16,100 13,900 16,600 16,200 13,800 16,600 16,200 14,200 16,600 Oct. 6 Oct. 13 Oct. 19 12:15AM 16,300 5:37AM 10,800 10:43PM 15,700 15,900 11,400 16,000 16,000 11,400 15,800 16,100 11,400 15,400 16,200 11,000 15,600 16,000 10,200 15,700 Oct. 7 Oct. 14 Oct. 20 12:36AM 15,500 6:46AM 14,000 10:55PM 12,500 15,200 14,100 12,200 15,400 14,200 13,800 15,000 14,200 13,300 14,200 14,000 13,800 14,800 13,900 13,000 o o o o o o o o o o o o cm CD e- LO c- m % ■% % •% i—i i—1 CO CO CO CO i—i i—I 1—1 i—1 1—1 rH to CO CM > o LO o o o o o o O O O lo o o CM CD CD rH ^ LO n % n «\ to w w to to to H- rH rH rH i—t i—I st CO o •• CO rH o o o o o O o o o o o o LO CO in CD % •k «k ■k •» CM CM CM rH CM CM rH rH r—1 i—1 i—I i—1 co CO LO • •• j> CO O rH o o o o o o o o o o o o o o ^ O) co ifl O) eo co mi m * "k •» «k ft CM CM CM CM CM CM co rH «—1 rH rH rH i—I CO S »a CO cd CO c- • •• • ■■ -P CD -p e- O o o o o o o o o o o o o o I>- O H1 CO I n % •» «v o» oo c- co 05 c- 00 rH CO c- to in CO (—i i—1 i—! o £ CO CJ) rH • •• -P CO o o p o o o o o o o o o o o o o CO CO iH CO CT> LO o ft ft ft ft ft ft ft LO ^ LO CO CO CO *.3 CO §j CO CO CO CO o rH • •• • •• -P CO -P rH O rH O o o o o o o o o o o H C- CO * «l 1 o o o o o p o o o o o o o o o CO cd CO rH ^ % % * ft * ft CO in CO CO rH « % CO CO • •• -P rH O o o o o o o o o o o o o o CO to CO -st< c- ft ft ft ft ft ft CO CO CO CO CO CO CO ^ !> co o is; o o o o o o o o o o o o in co co co co c- % «k « % «k «t o o o o o o rH i—I i—I rH i—I i—I CD s> o is; c- CO o o o o o o o o o o o o CO O 00 LO O in O O O cd CO O rH cd > o is; co o o o o o o o o o o o o CO CD CO W rjl •i CO C- C- CO CD CO co o co • •• -p o> o o o o o o o o o io o o o o co co ^ co o % ft ft ft ft ft co co co co co co rH rH rH rH rH rH O o o o o o o o o o o o o CO 00 ^ O CD H ^ rr «t *t O O rH CO S CO co • ■< > o O rH (Si LO LO CO cd c- o o o o o o o o O o o O CO CO CO CO CO "4* LO o o o o o o o o o o o CO CO o CO rH Oi o co co LO t—I ft ft ft ft ft ft •> •I ft ft ft ft c- E- c- cd cd CO CO 1—1 rH O i—1 o 1—1 o rH rH i—I lo «q co co i—! • >• -P CO o o CO «< CO iH i—! • •• -P o o CO CO co • .. -P LO O o 189 Bottom samples (continued) Parts per million 1937 Nov. 11 Nov, 17 Nov. 24 4:38AM 13,000 10:01PM 15 3:40AM 11,000 10,700 16 7,500 11,000 36 8,700 11,600 15 8,800 10,200 11 11,200 13,000 13 11,600 Nov. 12 Nov. 18 Nov, 25 6:06FM 14,700 10:58PM 91 5:30PM 12,200 14,900 119 11,900 14,600 95 11,500 14,700 113 11,900 14,9C0 129 12,400 14,400 117 11,700 Nov. 13 Nov. 19 Nov. 26 7:12PM 15,600 11:49PM 6,700 6:43PM 12,600 16,100 7,450 12,900 16,000 7,850 12,750 16,200 7,000 12,750 16,000 6,650 12,400 16,000 8,150 12,700 Nov. 14 Nov. 21 Nov., 27 7:49PM 11,000 12:57AM 3,500 7:13 PL 11,600 10,800 7,000 11,300 10,400 11,600 11,600 11,140 11,300 11,700 11,100 11,700 12,000 9,700 11,900 11,400 Nov. 15 Nov. 22 Nov. 28 8:28PM 9 1:37AM 3,600 8:29PM 8,600 5 440 7,700 7 420 7,800 7 640 8,000 7 1,150 6,900 9 4,450 7,300 Nov. 16 Nov. 23 Nov. 29 9:23PM 6 2:52AM 11,000 9:05PM 9 6 11,100 5 5 10,900 9 n 10,700 7 5 11,600 7 7 12,000 5 Bottom samples (oontinued) Parts per million 1937 Nov. 30 Deo. 7 Doc. 13 9:48PM 7 1:21AM 12,700 7:03PM 6,400 3 12,500 | 6,650 5 12,300 7,150 3 12,800 7,000 5 12,100 4,750 5 12,700 4,800 Dec. 1 Dec. 8 Dec, 14 10:13PM 9 2:22AM 6 7:45PM 5,800 6 7 4,400 5 6 • 3,750 7 6 6,150 4 6 6,200 5 7 6,650 Dec. 2 Dec. 9 Dec. 15 11:02PM 3 3:20AM 8,900 8:44PM 13,000 4 7,750 12,700 3 9,900 13,200 3 11,100 13,000 5 9,650 13,100 3 9,700 13,100 Dec. 3 Dec. 10 Dec. 16 11:51PM 10,250 3:56PM 7,650 10:08PM 12,900 9,200 7,100 12,800 7,300 11,200 12,800 10,400 7,550 8,700 7,050 8,450 11,400 10,400 8,300 12,800 Dec. 5 Dec. 11 Dec. 17 12:06AM 3,000 5:08PM 11,100 10:27PM 13,000 2,300 7,300 13,400 3,000 10,100 13,400 3,650 9,800 13,600 3,950 10,900 13,400 4,500 9,350 13,500 Dec. 6 Dec. 12 Dec. 18 12:59AM 10,700 5:44PM 9,350 11:29PM 11,100 10,900 12,350 10,900 11,000 11,000 9,800 11,100 9,700 11,500 8,300 12,250 6,500 10,800 14,050 11,100 191 Bottom samples (oontinued) Parts por million 1937 Deo. 20 1 June 13 June 19 12:18AM 7,500 12:11PM 13,900 4:00PM 11,750 10,600 15,300 12,400 9,500 14,900 12,950 10,100 14,850 13,000 10,700 14,850 12,550 11,600 15,000 12,900 1938 June 14 June 20 June 8 13,150 12:36PM 13,450 4:56PM 15,450 8:26AM 13,650 13,100 15,500 13,600 13,200 15,550 13,850 12,950 15,650 13,700 13,250 15,450 13,750 13,250 15,600 June 9 June 15 June 21 9:11AM 13,750 12:51PM 11,950 5:46PM 14,800 13,650 11,250 15,100 13,750 13,300 15,300 13,800 13,500 15,350 13,750 13,350 15,350 13,800 13,500 15,450 June 10 June 16 June 22 10:26AM 14,000 2:01PM 13,050 6:21AM 14,750 13,800 6,200 14,650 13,950 13,150 14,700 13,850 13,100 14,400 14,000 10,900 14,800 13,750 13,200 14,900 June 11 June 17 June 23 11:06EM 14,300 2:36PM 13,300 7:16AM 14,050 14,350 13,300 14,150 14,500 13,900 14,250 14,300 13,450 14,200 14,350 9,450 14,050 14,500 14,050 14,200 June 12 June 18 June 24 11:56PM 13,500 3:26PM 14,300 8:11AM 14,650 14,050 12,600 14,450 14,550 12,600 14,600 13,750 14,400 14,650 14,150 14,500 14,700 13,100 12,650 14,700 192 Bottom samples (continued) Parts per million 1938 June 25 June 29 July 3 9:11AM 14,600 12:21PM 7,500 4:06PM 15,250 14,600 4,400 14,650 14,600 8,250 15,150 14,650 9,400 15,150 14,650 8,900 15,250 14,700 8,600 12,200 June 26 June 30 July 4 9:56AM 14,500 1:26PM 11,150 5:11PM 15,150 14,350 11,250 15,450 14,350 4,700 15,350 14,450 11,150 15,250 14,400 11,300 15,250 14,350 11,100 15,250 June 27 July 1 July 5 10:51AM 15,700 2:16PM 13,100 6:11PM 14,650 16,050 13,450 14,600 15,000 13,450 14,600 15,550 13,400 14,600 15,650 13,550 14,650 15,700 13,500 14,350 June 28 July 2 11:36PM 14,150 3:31PM 14,050 14,000 13,950 14,050 13,850 8,200 13,850 8,050 13,950 14,050 14,050