URBANA Digitized by the Internet Archive in 2012 with funding from University of Illinois Urbana-Champaign http://archive.org/details/groundwatersuppl11cart 557 I16e 11 copy 1 ENVIRONMENTAL GEOLOGY NOTES JUNE 1966 ■ NUMBER II GROUND -WATER SUPPLIES ALONG THE INTERSTATE HIGHWAY SYSTEM IN ILLINOIS KEROS CARTWRIGHT ILLINOIS STATE GEOLOGICAL SURVEY JOHN C. FRYE, Chief • Urbana GROUND- WATER SUPPLIES ALONG THE INTERSTATE HIGHWAY SYSTEM IN ILLINOIS Keros Cartwright Water supplies capable of producing 40 to 60 gallons per minute are required for planning rest areas along the new Interstate Highway System, a requirement difficult to meet where ground-water conditions are unfavorable. The greatest difficulties in locating water supplies have been encountered in the southern part of Illinois where permeable water-yielding beds are scarce. The Illinois State Geological Survey, the Illinois State Water Survey, and the Illinois Division of High- ways are cooperating in locating sites with adequate water in all parts,. .of Illinois. INTRODUCTION The Illinois State Geological Survey has cooperated with the Division of Highways of 'the State Department of Public Works and Buildings since 1962 in evaluating the availability of ground water for rest areas on the Interstate Highway System. The areas will provide facilities along highways for drinking water, rest rooms, and picnicking. Planning the rest areas involves several considerations. They must be placed along highways at convenient intervals, preferably in esthetically pleasing locations. Each must consist of two sites— one for each direction of traffic — spaced so that a driver sees the stop on his side before he sees the one for the opposite direction. Locations close to urban areas are eliminated to discourage use of the stops as local parks. - 1 - - 2 - Rock Is Kankakee — Interstate Highway System (completed and proposed) o Rest stop sites + Sites studied and abandoned Chicago Fig. 1 - Location of rest stop sites that have been studied. - 3 - A ground-water supply must be available for both drinking and sani- tary facilities. Water demands vary greatly, not only from season to season but also from hour to hour during the day. A well capable of supplying 40 gallons per minute (gpm) is needed at each site to meet heavy demands. At some sites even more water, perhaps 60 gpm, is needed. Unless absolutely neces- sary, large, costly water storage facilities are to be avoided, and, therefore, wells must be capable of meeting peak demands. Early in the planning program it was apparent that in some parts of Illinois rest stops could be provisionally selected with the assumption that a water supply was available. In other parts, however, availability of water was the most limiting consideration for site selection and the other factors had to be accomodated to it. To date, 19 areas for pairs of rest stops have been evaluated (fig. 1), many of them including several alternative sites. In the northern part of the state, large areas exist where a water supply can be found almost anywhere (figs. 2 and 3), whereas in parts of south-central and southern Illinois even meager supplies are difficult to obtain. This variability of physical conditions made it advisable to incorporate geohydrologic information into highway planning very early and to maintain considerable flexibility in site selection. SOURCES OF GROUND WATER Evaluation by the Geological Survey of ground-water possibilities at each site was accomplished with available geologic and hydrogeologic data. Most sources of information consist of the results of regional ground-water studies and well data filed in the mineral resource records of the Geological - 4 - ^ m Kxtensive highly productive sand and gravel. 40 gpm available at most sites on the upland surface . Highly productive sand and gravel often present, but rather discontinuous. 40 gpm available at many sites on the upland surface. Scattered sand and gravel, not highly productive. 40 gpm available at few sites on the upland surface. Sand and gravel rare beneath the upland surface. 40 gpm rarely available except along major and secondary streams. MILES 50 i i i i I Fig. 2 - Ground-water potential for rest stops from glacial drift on the upland surface (after Atlas of Illinois Resources, 1958). - 5 - Survey. Following geologic evaluation, geophysical exploration was sometimes carried out to locate potential aquifers (strata capable of storing water and transmitting it to a well) in the unconsolidated glacial drift. Two main sources of ground water in Illinois are the unconsolidated sand and gravel deposits of glacial drift and river alluvium, and sandstone and limestone formations within the bedrock. Fresh water occurs in these aquifers from depths of only a few feet to as much as 2000 feet in parts of Illinois. Most of the unconsolidated deposits, which attain a maximum thickness of over 500 feet, were left by glaciers that overrode parts of Illinois during the four major stages of ice advance. At its maximum, the ice covered Illinois as far south as Carbondale. Sand and gravel deposits occur mainly in valleys that carried neltwater from the ice. In areas of thick drift, sand and gravel deposits may be extensive and deeply buried (fig* 2). In other areas, where the drir't is thin, only scattered sand and gravel generally is present. Modern-cay stromas commonly flow along drift-filled valleys that existed in glacial times, and thus the most permeable material often is confined to these valleys, especially in areas of thin drift. Figure 2 shows the probability of f?.nding sites on the upland surface with sufficient sand and gravel to yiald 40 gpm of water. However, sites even in the area marked as excellent may not have adequate water-yielding material, siuce the thickness and permeability of the deposits c^n vary greatly over short distances. The northeastern and ease-central parts of Illinois con- tain rather extensive sand deposits; in the rest of the state, sand and gravel deposits are mere limited, Ground-water conditions in bedrock also vary considerably in the state, Bedrock formations dip into the II line is Basin, an oval, spocn-shaped structural depression, the deepest part of which is in Hamilton, Wayne, Edwards, and White - 6 - ^ TTT9 //// //// ' ' ' ' t-0 gpm usually available from the bedrock. kO gpm difficult to obtain, but moderate supplies- generally available. May require more than one well. Deep drilling may be necessary in some areas. 1*0 gpm rarely can be obtained from the bedrock. MILES 50 Fig. 3 - Ground-water potential for rest stops from bedrock formations (after Atlas of Illinois Resources, 1958). ■■■'-■ :„,••.' n Counties. As water moves through the formations toward the deep part of the basin it becomes mote saline. Thus, water is potable to depths of 2000 feet in permeable sandstones and dolomites (a limestone- like rock) in the northern part of the state, but is brine in the same rocks in the Illinois Basin where they occur at great depths. Potable water also is found in bedrock aquifers along the western and southern edges of the state (fig. 3). The nature of bedrock formations is more consistent than that of drift, and predictions of depth and water-yielding characteristics can often be made with some certainty. This is especially true of the sandstones that yield water from the pores of the rock. Limestone generally yields water from solution zones and crevices. The extent of these and, therefore, the water-yielding characteristics of the limestone cannot be predicted prior to drilling, IJhen limestone is the upper- most bedrock formation, crevicing is best developed in the upper 50 to 75 feet. When the limestone is covered with impermeable shale, the crevices generally are poorly developed. Table 1 lists rock units, their water-yielding charac- teristics, and the regions in which they are important as aquifers. DEVELOPMENT OF THE REST STOP PROJECT Availability of water was a serious problem at some sites (figs. 2 and 3). In parts of the southern half of the state it was not always possible to loccte an adequate water supply. At such sites, plans were modified so that smaller quantities of water would be acceptable. Initially the Highway Division picked pairs of sites that met their criteria for rest stops, assuming that a water supply was available. The loca- tions of the proposed sites were sent to the Geological Survey for information - 8 - TABLE 1 - WATER -YIELDING CHARACTERISTICS OF ILLINOIS ROCK UNITS Thick- ness Water-yielding System Unit (ft) Description characteristics Unconsolidated glacial Water-yielding characteristics deposits; pebbly clay vary. Large yields from thick- (till), silt, sand and er sand and gravel deposits in Quaternary Pleistocene 0-500 gravel ; alluvial silts and sands along streams* bedrock valleys. Chief aquifer in the southern two-thirds of Illinois. Supplies often ade- quate for rest stops. Clays, fine sands, silts , and some gravel . Water-yielding characteristics vary. Thick deposits of sand present excellent possibili- ties for domestic and farm Tertiary and 0-800 supplies and, locally, possi- Cretaceous bilities for municipal and rest stop supplies. Present mainly at the southern tip of Illinois. Mainly shale with thin Water-yielding characteristics limestone, sandstone, vary. Locally domestic and and coal beds. farm supplies are obtained from sandstone and limestone beds. Water quality deterio- McLeansboro and Kewanee Groups rates with depth. The only bedrock aquifer in much of 0-1500 Illinois. Locally thick sand- stones in area between St. Jacob, Madison County, and Pennsylvanian New Memphis, Clinton County, yield small municipal supplies, usually not adequate for rest stops, except in the St. Jacob area. Shale with thin lime- Water-yielding characteristics stone, sandstone, and vary. In southern part of McCormick Group 0-1200 coal at top; thick sandstones in the lower part. Illinois, yields sufficient water for municipal and rest stop supplies. (Continued! - - TABLE 1 - WATER -YIELDING CHARACTERISTICS OF ILLINOIS ROCK UNITS - Continued Thick- ness Water-yielding System Unit (ft) Description characteristics j 1 Shale, sandstone, and Yields water from sandstone limestone. and limestone strata. Sand- stone characteristics vary. Widespread use as source of Pope Megagroup 0-1400 domestic and farm supplies in southern and southwestern Illinois. Sandstones some- times yield adequate water for small municipal and rest stop supplies. Mic*issippian Mrjraioth Limestone; some shale in the lower part. Dependable aquifer for domes- tic and farm supplies. Local- ly a source of water for mu- nicipal ar-d rer!: stop sup- pi ios. !ii :cv f option gener- Cave 0-450 al 7 vaTJi srsvjood where it MeGagroup d. .':(•.'.' ■- 1 /.>. :.. ?s the drift. A r , ..'- , .j ..'. -.: .. ■ in western I '...inoi : i '•;-. ktok C-o-inty f;o Jersey .Jou n ' ;■ nnd ir. the southern tip oi the state. fc.tr... -::'>•<■.. '/Ian 0-400 Shale; little lime- Kot water yieldi-'ig. u trxbc stone. Lirv?stone, clv.rty D^pendaSlo aquifer for domes- 1.1 i T - tone , ccsae z a !id- tic and r--ii> r>".y:>'.ies,, .".-■cal- rtone; shale in u^per ly a pt-vsvitia!* :• :jrce of water part. iov it."'*.*'.', ' ■•' :.') avid rest fitop Devonian 0-1400 S"ut>pli*s ijune'ra^ly mod- rede- ly crevi'-.:i'i. V'. ad as a source Ox uatr.: jv. the : \>ck Xsland C5- i a".; ...-.i;rei)o southern j.Vi inoi^^ Dcloaiite and iime- P-: penda'c ie aqu.i.fer . Ge ; ?ra3 .'.y s.toue; shal,y near Wdll creviced v. ; vo enc ounfcered Silurian 0-470 base. below the £rift 5 iSigbli devel- oped and dependable a: - Jar in northeastern ana northwestern Illinois. (Continued) - 10 - TABLE 1 - WATER -YIELDING CHARACTERISTICS OF ILLINOIS ROCK UNITS - Concluded Thick- ness Water-yielding System Unit (ft) Description characteristics Ordovician Maquoketa Group Ottawa Megagroup (Galena and Platte ville Groups) Ancell Group (Glenwood and St. Peter Formations) Prairie du Chien Group 0-250 Shale; some dolomite. 0-450 O-650 Limestone and dolomite, Sandstone ; sometimes shaly at top and bottom. Generally not water yielding. Dependable aquifer where not overlain by shale. Not highly developed. Usable as an aqui- fer in the northern part of Illinois and at some points along the Mississippi River. Dependable aquifer. Highly de- veloped in the northern third of the state. Source of many municipal supplies. 0-1200 Dolomite ; some sand- stone. Rarely developed as a source of ground water. Some use in north-central Illinois. Cambrian Croixan Series (Eminence and Franc onia Formations) Dolomite ; some sand- stone and shale. Rarely developed as a source of ground water. 0-2000? (Ironton and Galesville Formations) (Eau Claire Formation) (Mt. Simon Formation) • Sandstone present in 0-275 i northern part of l J Illinois only. 300- 1000? I Shale, dolomite, and siltstone ; lower part sandstone. Highly productive and devel- oped aquifer in the northern third of Illinois. Not a source of ground water except for sandstone at base. Sandstone; some shale, 500- 2500 Moderately productive aquifer; generally too deep to be de- veloped. Used in the northern third of Illinois. Precambrian Crystalline basement. J Not a source of ground water. - 11 - on the ground-water potential. The Survey analyzed the hydrogeologic data and the State Water Survey furnished information on the quantity and quality of available water. Following analysis of the geologic data, electrical earth resistivity surveys (Buhle, 1957; Buhle and Brueckmann, 1964) were made by the Geological Survey at some of the sites. The resistivity surveys were conducted in areas of glacial drift to indicate the best place to drill when available data suggested potential water supplies, or to further evaluate a site when geologic data were insufficient to show the character of the drift. Table 2 lists sites evaluated for the Highway Division, types of studies made, conclu- sions reached, and outcome of drilling, if any. It soon was obvious to district engineers in charge of specific areas, mainly in the southern part of the state, that the most desirable site from the esthetic and engineering standpoint often had the least adequate water supply. For example, sites on rock promontories overlooking valleys were often selected. At these sites, however, no drift is present and little water is available. In addition, the rock itself has very low permeability. As the cooperative work with the district office continued, the engineers began to submit several pairs of potential sites for ground-water evaluation so that highly unfavorable sites could be eliminated. In some cases, the Geological Survey suggested areas in which ground water might be obtained, and thus the availability of ground water became the critical factor in rest stop planning. The effort expended in the search for and evaluation of sites varied greatly from one part of the state to another. In Will County, for example, only one geological report was necessary for the sites. This report principally listed the aquifers present, their thickness, and their depth. Ground water is available at almost any site in this region, and thus was not a critical part - 12 - TABLE 2 - PROPOSED REST STOP SITES Location Type of evaluation Results of study Remarks Interstate 55 SV sec. 29 T. 37 N.» R. 10 E. Will County GWP* Chances excellent for obtaining a supply from the Silurian dolomite at depths less than 100 feet; deeper aquifers also available N 1/2 sec. 31 T. 37 N., R. 10 E. Will County GWP Same NW SW sec. 6 T. 16 N., R. 4 W. Sangamon County GWP Conditions poor at site ; recom- EESt mended exploration in valley of Sangamon River one -quarter to one-half mile north; drilling prior to EES unsuccessful 60 gpm needed; supply obtained from deposits in river valley; well located by EES I nterstate 57 100'N, 100'W SE cor. SE sec. 4- T. 24 N., R. 10 E. Iroquois County GWP Conditions excellent in gla- cial drift; site lies over a major drift aquifer associated with a buried valley; EES not recommended l600'S, 400»E NW cor. NW sec. 10 T. 24 N., R. 10 E. Iroquois County GWP Same NE sec. 16 T. 17 N., R. 8 E. Champaign County GWP EES Chances of obtaining a supply from the drift good; recommended EES for locating well site Adequate water supply found at recommended site NW NE sec. 21 T. 17 N., R. 8 E. Champaign County GWP EES Same Same * GWP = Geological report on ground-water conditions t EES = Electrical earth resistivity survey (Continued) - 13 - TABLE 2 - PROPOSED REST STOP SITES - Continued Location Type of evaluation Results of study Remarks Interstate 57-contd. NE NW sec. 26 T. 9 N., R. 6 E. Effingham County GWP EES Chances of obtaining a supply very good; suggest EES EES inconclusive; well drilled on basic geo- logic interpretation; adequate water but high mineral content; plan to use site SE SE sec. 26 T. 7 N., R. 5 E. Effingham County GWP EES Chances of obtaining a supply poor except in the valley of the Little Wabash River, across highway, and three-quarters mile west Site abandoned; will build site across road from previous site NW SE sec. 27 T. 2 N. , R. 2 E. Marion County GWP EES Chances poor Abandon NE SE sec. 3 T. 1 S., R. 2 E. Jefferson County GWP Same Same NW NW sec. 11 T. 1 S., R. 2 E. Jefferson County GWP Same Same NW SW sec. 30 T. 5 S., R. 3 E« Franklin County GWP Same Same SW NW sec. 6 T. 6 S. , R. 3 E. Franklin County GWP Same Same SW SW sec. 17 T. 12 S., R. 1 E. Union County GWP Chances good for obtaining supply from sandstone or limestone of the Chester Series Successful well com- pleted at site NW NW sec. 20 T. 12 S., R. 1 E, Union County GWP Same Same (Continued) - 14 - TABLE 2 - PROPOSED REST STOP SITES - Continued Location Type of evaluation Results of study Remarks Interstate 70 SW sec. 17 I. I(S.,R. 5 W. Madison County GWP Chances good for obtaining supply from Pennsylvanian sandstone NW sec. 19 T. 4 S., R. 5 W. Madison County GWP Same NW SE sec. 9 GWP Chances poor T. 6 N. , R. 2 E. EES Payette County SE NE sec. 9 GWP Same T. 6 S., R. 2 E. EES Abandon Same Payette County SW NE sec. 13 T. 7 N., R. 4 E. Effingham County GWP EES Chances fair for obtaining a supply from the drift Small water supply found; will use site NW SW sec. 8 T. 7 N., R. 5 E. Effingham County GWP EES Same Same NE sec. 9 T. 9 N., R. 9 E. Cumberland County GV.T Chances poor at site; supply probably available in Embarras River Valley one-quarter to one-half mile east Abandon NW sec. 6 T. 9 N., R. 9 E. Cumberland County GWP Same Same NW sec. 6 T. 9 N., R. 10 E. Cumberland County GWP Chances poor Abandon NW cor. sec. 25 T. 10 N., R. 10 E. Cumberland County GWP Chances fair to good in glacial drift; EES recommended but not requested Abandon (Continue d } - 15 - TABLE 2 - PROPOSED REST STOP SITES - Continued Location Type of evaluation Results of study Remarks Interstate 70-contd. SE SW sec. 23 T. 11 N., R. 13 fir. Clark County OWP Chances fair to good for obtaining a supply from the drift Drilled and supply found inadequate NE SE sec. 23 T. 11 N., R. 13 W. Clark County GWP Chances fair to poor for obtaining a supply from the drift Drilled and no aquifer found NE NW sec. 19 T. 11 N.. R. 12 W. Clark County OWP Chances poor at site; supply probably available in valley of Mill Creek one-half mile west Abandon NE sec. 19 T. 11 N., R. 12 W. Clark County OWP Chances poor at site ; supply probably available in valley of Mill Creek three-quarters mile west Abandon SE SW sec 17 T. 11 N., R. 12 W. Clark County QWP Chances poor Abandon Same OWP Same Same NE SE sec. 17 T. 11 N. , R. 12 W. Clark County OWP Same Same SW SW sec. 11 T. 11 N.. R. 12 W. Clark County QWP EES Same Same SW sec. 5 OWP T. 11 N., R. 11 w. EES Clark County NE cor. SE sec. 3 QWP T. 11 N.. R. 11 w. EES Clark County Chances poor at site; supply probably available in valley of Mill Creek Chances fair to good for obtaining a supply from the drift Tests to be made in valley of Mill Creek To be tested (Continued) - 16 - TABLE 2 - PROPOSED REST STOP SITES - Continued Location Type of evaluation Results of study Remarks Interstate 74 NE NW sec. 1 T. 14 N. , R. 1 E. Henry County GWP Chances faix in the drift; chances good in the Devonian- Silurian dolomites at depths of 300 feet or greater Drilling proved sup- plies available in drift NE SW sec. 12 T. 14 N. , R. 1 E. Henry County GWP Same Same NW NE sec. 33 T. 11 N., R. 3 E, Knox County GWP Chances poor in drift; very deep well possible Abandon S 1/2 NE sec. 34 T. 11 N. , R. 3 E. Knox County GWP Same Same Same GWP Same Same SE sec. 35 GWP T. 11 N. , R. 3 E. EES Knox County SE SW sec. 5 GWP T. 10 N., R. 4 E. EES Knox County Same GWP EES Cen. sec. 10 GWP T. 10 N. » R. 4 E. EES Knox County Same Same Same Same Same Same Same Same NW SW sec. 11 T. 10 N.. R. 4 E, Knox County GWP Same Same SW NE sec. 18 T. 10 N. , R. 5 E. Peoria County GWP Same Same (Continued) 17 - TABLE 2 - PROPOSED REST STOP SITES - Continued Location Type of evaluation Results of study Remarks Interstate 74-contd. NW SE sec. 18 T. 10 N. , R. 5 E. Peoria County OWP Chances poor in drift; very deep well possible Abandon SE NW sec. 17 T. 10 N., R. 5 E. Peoria County GWP Same Same SE SE sec. 29 T. 10 N.. R. 6 E. Peoria County GWP Chances poor in drift; very deep well possible Probably will drill 1700-foot deep well NW NE sec. 32 T. 10 N., R. 6 E. Peoria County OWP Same Same SE NW sec. 20 T. 25 N., R. 1 W. Woodford County GWP Chances fair to poor in drift; supply probably available in valley of Mackinaw River one- half mile west Adequate supply found SE NE sec. 20 T. 25 N., R. 1 W. Woodford County GWP Chances fair to poor at site ; supply probably available in valley of Mackinaw River 1 mile west Adequate supply found NW SW sec. 7 T. 19 N. , R. 14 W. Champaign County GWP EES Chances fair to good for a supply from the drift Adequate supply found Cen. sec. 10 T. 19 N. . R. 11 W. Vermilion County GWP EES Chances fair to good for a supply from the drift Abandon SW NE sec. 10 T. 19 N., R. 14 W. Vermilion County GWP EES Chances fair to good for a supply from the drift Adequate supply found SE NE sec. 7 GWP Chances poor T. 19 N., R. 13 W. EES Vermilion County (Continued) Abandon - 18 - TABLE 2 - FROTOSED REST STOP SITES - Concluded Location Type of evaluation Results of study Remarks Interstate 74- contd. NE sec. 8 T. 19 N.» R. 12 W. Vermilion County GWP Chances poor Abandon Interstate 8o NW NE sec. 8 T. 16 N.„ R. 8 E. Bureau County NE NW sec. 10 T. 16 N., R. 8 E. Bureau County SE SW sec. 8 T. 34 N., R. 8 B, Grundy County NW SW sec. 4 T. 34 N. , R. 8 E. Grundy County GWP GWP GWP GWP Chances very good for obtaining supply from the drift Same Chances fair in drift, very good in shallow bedrock; deep bedrock aquifer available Chances poor in drift, very good in shallow bedrock; deep bedrock aquifer available Adequate supply found Same Adequate supply found Adequate supply found of the planning. Wells for the sites in Will County on Interstate 80 are located in sees. 29 and 31, T. 37 N., R. 10 E., and were made in the shallow Silurian dolomite. The unconsolidated glacial drift at the sites was estimated to be about 50 feet thick. No information was available on the characteristics of the drift, but most wells in the region are finished in the upper 50 feet of the bedrock. The uppermost bedrock formation is the Silurian dolomite, which is a highly productive aquifer offering an excellent source of ground water for the rest areas. The Glenwood — St. Peter Sandstone is another possible aquifer at a depth of about 650 to 700 feet. No geophysical exploration vias necessary. - 19 - In contrast to Will County, Effingham County illustrates an extreme case where the hydrogeologic environment was the controlling consideration in rest stop planning and design. Reports of numerous sites in Effingham County along Interstate 57 were prepared, and resistivity surveys were conducted at several locations before a site was finally located. The original sites se- lected were located in sec. 26, T. 9 N., R. 6 E. (southbound site) and sec. 26, T. 7 N,, R. 5 E. (northbound site). Since the Pennsylvanian bedrock in this area is not productive, water supplies were sought in the glacial drift. The drift had some promise at the southbound site because the site was over an ancient buried bedrock valley. However, geophysical studies were inconclusive. Drilling proved the existence of permeable sand and gravel deposits, but the water was of poor quality and would have required expensive treatment. The closest permeable deposit to the northbound site was three- fourths of a mile west of the highway on the floodplaln of the Little Wabash River. As alterna- tives to these sites, two other pairs were examined, one in Marion County and one in Franklin County. These sites, however, proved to have less adequate ground-water potential, and both northbound and southbound sites were finally located in sec. 26, T. 9 N., R. 6 E., one of the first sites studied. As the Interstate Highway System is expanded in Illinois, additional rest stops will require further ground-water investigations. The variability of ground-water conditions, as demonstrated by past investigations, indicates that availability of water will be a primary consideration in preliminary site selection. - 20 - REFERENCES Atlas of Illinois Resources, 1953, Section 1, Water Resources and Climate: Illinois Dept. Registration and Education, Division of Planning and Development, p. 14-19. Buhle, M. B., 1957, Uses and limitations of electrical prospecting for water supplies: Illinois Acad. Sci. Trans., v. 50, p. 167-171. Buhle, M. B., and Brueckmann, J. E., 1964, Electrical earth resistivity surveying in Illinois: Illinois Geol. Survey Circ. 376, 51 p. ENVIRONMENTAL GEOLOGY NOTES SERIES 1. Controlled Drilling Program in Northeastern Illinois: J. E. Hackett and G. M. Hughes. April 1965. 2. Data from Controlled Drilling Program in DuPage County, Illinois: Jean I. Larsen and C. R. Lund. May 1965. 3. Activities in Environmental Geology in Northeastern Illinois: Jean I. Larsen and J. E. Hackett. June 1965. 4. Geological and Geophysical Investigations for a Ground-Water Supply at Macomb, Illinois: Keros Cartwright and D. A. Stephenson. July 1965. 5. Problems in Providing Minerals for an Expanding Population: H. E. Risser. July 1965. 6. Data from Controlled Drilling Program in Kane, Kendall, and DeKalb Counties, Illinois: C. R. Lund. October 1965. 7. Data from Controlled Drilling Program in McHenry County, Illinois: C, R. Lund. November 1965. 8. An Application of Geologic Information to Land Use in the Chicago Metropolitan Region: J. E. Hackett. January 1966. 9. Data from Controlled Drilling Program in Lake County and the Northern Part of Cook County, Illinois: C. R. Lund. March 1966. 10. Data from Controlled Drilling Program in Will and Southern Cook Counties, Illinois: C. R. Lund. May 1966.