| | 261: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | Section 20.1 of the Illinois Environmental Protection Act instructs the Illinois EPA to identify sites that generate, treat, store or dispose of hazardous wastes and to report the types and quantities of hazardous waste involved. | | | | Date Created: | 07-17-2014 | | | | Agency ID: | | | | | ISL ID: | 000000052193 Original UID: 173362 FIRST WORD: Generators | |
| 262: | | Title: | | | | | Volume/Number: | 2013 | | | | Issuing Agency: | | | | | Description: | Section 20.1 of the Illinois Environmental Protection Act instructs the Illinois EPA to identify sites that generate, treat, store or dispose of hazardous wastes and to report the types and quantities of hazardous waste involved. Hazardous waste is defined by the Resource Conservation and Recovery Act (RCRA), which gave the EPA authority to control hazardous wastes from cradle to grave. This publication makes no attempt to analyze this data. Analysis is contained in a companion publication: Hazardous Waste Generation and Management. | | | | Date Created: | 12-10-2014 | | | | Agency ID: | | | | | ISL ID: | 000000053556 Original UID: 174847 FIRST WORD: Generators | |
| 263: | | Title: | | | | | Volume/Number: | 1976 | | | | Issuing Agency: | | | | | Description: | An estimated 23.3 million gallons of water is pumped from the aquifers of Champaign County each day to satisfy industrial, municipal, domestic, and rural needs. A much larger quantity of water, perhaps as much as 90 million gallons a day (mgd), could probably be withdrawn without overdevelopment. Maps and tables indicating the probable maximum depths of wells, water levels, chemical quality, and general groundwater conditions for each water-bearing unit at specific locations are presented to serve as a guide in the development and utilization of the groundwater resources of Champaign County. | | | | Date Created: | 5 20 2005 | | | | Agency ID: | C-124 | | | | ISL ID: | 000000000742 Original UID: 999999993781 FIRST WORD: Groundwater | |
| 264: | | Title: | | | | | Volume/Number: | 1980 | | | | Issuing Agency: | | | | | Description: | Driven by the force of gravity, water continually moves between the land surface and the subsurface environments. Our knowledge of this process is limited by the large number of interdependent factors involved. A better understanding of these factors and their effects is needed if we are to effectively manage our water resources in a comprehensive manner.This study addresses the problem by quantifying the groundwater contributionto streamflow over a large range of discharges for 78 watersheds in Illinois.Quantification is the first step toward understanding the dynamics of thiscomplex phenomenon. | | | | Date Created: | 9 24 2004 | | | | Agency ID: | CR-246 | | | | ISL ID: | 000000000791 Original UID: 999999993278 FIRST WORD: Groundwater | |
| 265: | | Title: | | | | | Volume/Number: | 2004 | | | | Issuing Agency: | | | | | Description: | Groundwater Conditions of the Principal Aquifers of Lee, Whiteside, Bureau, and Henry Counties, Illinois by Stephen L. Burch A large supply of groundwater occurs in a buried aquifer lying in the bedrock valley of the ancestral Mississippi River. This deposit, known as the Sankoty sand, supplies many irrigation wells and underlies more than 750 square miles (sq mi). A shallower and less extensive aquifer, the Tampico, occurs near the surface and underlies more than 480 sq mi. This study defines the regional groundwater flow patterns for these two aquifers in northwestern Illinois and reports the results of measuring groundwater levels in observation wells. The Tampico aquifer is separated from the underlying Sankoty aquifer by an intervening layer of clay or clays. Groundwater within the upper unit exists under unconfined conditions (that is, at atmospheric pressure). The saturated sands comprising the Tampico aquifer are typically 30 to 40 feet thick and are tapped by shallow wells or sandpoints. The Sankoty sand is 100 to 150 feet thick and is commonly used in irrigation wells in Illinois. Groundwater within this unit is pressurized and occurs under confined conditions. The pressure head in the aquifer declines from an elevation of about 670 feet near the town of Ohio to less than 570 feet near Albany along the Mississippi River. A steeper gradient occurs as groundwater flows toward a second outlet near Hennepin. As a result, groundwater elevations decline to levels below 450 feet where the aquifer discharges to the Illinois River. Pumpage during the summer months, largely from irrigation wells, causes groundwater levels in the Sankoty aquifer to decline 11 to 13 feet. The area of greatest drawdown extends from Tampico to Walnut, Illinois. Groundwater levels in the Tampico aquifer do not decline as much. A decline of 3 to 3.5 feet is common in the aquifer's water table. Irrigation wells annually withdraw an estimated 21,000 acre-feet of groundwater. Although the Sankoty aquifer is favored for irrigation, the actual distribution percentage for each aquifer is unknown. No significant, regional water-quality problems were detected in samples collected from either aquifer. The groundwater in both aquifers is of a calcium-bicarbonate type. The water is very hard, with an average value of 306 milligrams per liter (mg/L) in the Sankoty aquifer and 329 mg/L in the overlying Tampico aquifer. The quality of samples from the Sankoty aquifer was excellent, although they contained more iron and are more alkaline than samples from the Tampico aquifer. No discernible patterns were observed in the distribution of total dissolved solids (TDS) values for either aquifer. The average TDS value for water samples was 435 mg/L (Tampico aquifer) and 363 mg/L (Sankoty aquifer). Groundwater in the Tampico aquifer was usually of excellent quality, but it sometimes contained nitrates. | | | | Date Created: | 12 8 2004 | | | | Agency ID: | DCS-2004-01 | | | | ISL ID: | 000000000905 Original UID: 999999994435 FIRST WORD: Groundwater | |
| 266: | | Title: | | | | | Volume/Number: | 1950 | | | | Issuing Agency: | | | | | Description: | This investigation is part of a state - wide investigation of groundwater resources being conducted by the State Water Survey Division. Records of more than 1400 wells have been tabulated. These wells penetrate one or more of three separate and distinct aquifers within the glacial drift . The three aquifers penetrated by wells in this are a have unrelated hydrostatic heads. The average daily pumpage from the middle deposits, the major producing aquifer considered in this report, was 7.917 million gallons. It was estimated that a total of 67,812 million gallons of water has been pumped from this aquifer. Water level pressure contour maps of the upper and middle waterbearing deposits show no similarity. Sufficient data are not available to permit the construction of a pressure contour map of the lower deposits. Values of the coefficients of transmissibility and storage have been determined. Values of the coefficient of transmissibility ranged from 10,000 to 400,000 and averaged about 40,000. Values of the coefficient of storage ranged from 0.00024 for short periods to 0.0065 for a 46 year period, the longest for which records are available. Using a coefficient of storage of 0.0065 it was determined that the amount of water removed from storage since pumping began was about 3,187 million gallons or about 5 percent of the total amount of groundwater withdrawn. The amount of inflow into the heavily pumped area at Champaign-Urbana is about equal to the 1948 rate of withdrawal indicating little if any recharge within the 630 contour of the cone of depression. The steep hydraulic gradient and low water levels near the area of heavy withdrawal, together with continued water level recession, suggests that the middle deposits at Champaign-Urbana have been developed to their maximum transmission rate and that some lessening of the rate of withdrawal would be necessary to maintain constant operating water levels. | | | | Date Created: | 1 9 2006 | | | | Agency ID: | RI-6 | | | | ISL ID: | 000000000917 Original UID: 999999993871 FIRST WORD: Groundwater | |
| 267: | | Title: | | | | | Volume/Number: | 1969 | | | | Issuing Agency: | | | | | Description: | The buried Mahomet Bedrock Valley and its major tributaries cover an area of about 3700 square miles in east-central Illinois. Large supplies of groundwater chiefly for municipal use are withdrawn from wells in permeable sands and gravels in thick deposits of glacial drift in the area. The glacial drift exceeds 400 feet in thickness in places. The largest source of groundwater consists of the sands and gravels of the Kansan deposits, called the deep aquifer, which occupy the deepest portions of the Mahomet Valley channel. Intercalated in the glacial drift above the Kansan deposits are sands and gravels of the Illinoian deposits, called the middle aquifer. The middle aquifer is a secondary source of groundwater. The coefficients of permeability and storage for the middle aquifer range from 230 to 4080 gallons per day per square foot (gpd/sq ft) and from 0.00001 to 0.083, respectively. They range from 310 to 4100 gpd/sq ft and from 0.000022 to 0.0023, respectively, for the deep aquifer. The coefficients of the vertical permeability of the confining beds above the middle and deep aquifers range from 0.0026 to 0.04 gpd/sq ft and 0.005 to 0.42 gpd/sq ft, respectively. Pumpage from wells increased from 8.5 million gallons per day (mgd) in 1890 to 46.3 mgd in 1960 and was 40.2 mgd in 1965. Of the 1965 total pumpage, 64.2 percent was for municipal supplies, 19.1 percent was for rural uses, and 16.7 percent was for industrial use. Wells in the deep aquifer accounted for 49.3 percent of the 1965 total; wells in the middle aquifer, 31.8 percent; wells in shallow unconsolidated deposits, 17.4 percent; and wells in bedrock aquifers, 1.5 percent. Major pumping centers with pumpage exceeding 1 mgd are located at Champaign-Urbana, Rantoul, Lincoln, Taylorville, and Hoopeston. As a result of heavy pumpage, water levels in the middle aquifer at Champaign-Urbana declined as much as 100 feet between 1885 and 1947. Subsequent shifting of pumpage to the deep aquifer west of Champaign resulted in water levels in the middle aquifer recovering from 30 to 55 feet. Because of increased withdrawals, water levels in the deep aquifer declined some 35 feet during 1948- 1963. Recovery of water levels in 1964 and 1965 resulted from a decline in pumpage. Similar though smaller water-level declines have occurred in many of the other pumping centers in the Mahomet Valley area. Recharge to buried aquifers in the Mahomet Valley occurs chiefly as leakage of water from a source bed in the shallow deposits across a confining layer. Potential recharge to these aquifers, considering only available head losses across the confining layers, is great. Computations for the Illinoian aquifer at Champaign-Urbana indicate a recharge rate of 115,000 gpd/sq mi in 1947. Similar computations for the Kansan aquifer west of Champaign during the period 1953 through 1965 indicated an average recharge rate of 107,000 gpd/sq mi. Total groundwater runoff for the valley is estimated to be about 740 mgd during years of normal precipitation. It is not unreasonable to assume that existing and/or future pumping centers could capture 60 percent of groundwater runoff, or 445 mgd. An electric analog computer consisting of an analog model and associated electronic equipment was constructed for the middle and deep aquifers and their confining and source beds in the vicinity of Champaign-Urbana to aid in studying the effects of groundwater pumpage on water levels in the Mahomet Valley. The accuracy of the computer was established by a study of records of past pumpage and water levels in three observation wells. The analog computer was used to determine pumping levels with a selected scheme of pumping from existing and future large capacity wells in the Kansan aquifer west of Champaign. Withdrawals with the selected pumping scheme would total 30.3 mgd from existing large capacity wells and 15 mgd from five future wells; pumping levels would be above the top of the Kansan aquifer. | | | | Date Created: | 5 18 2005 | | | | Agency ID: | RI-62 | | | | ISL ID: | 000000000931 Original UID: 999999993927 FIRST WORD: Groundwater | |
| 268: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | Nearly half of the residents living in the karst regions of St. Clair, Monroe, and Randolph Counties in southwestern Illinois use the shallow karst aquifer of Illinois sinkhole plain as their source for potable water. This study was undertaken to better understand the sources and pathways of contaminants in the areas wells and streams. The investigation used chemical and isotope analyses to characterize the quality and general geochemistry of the groundwater in the karst aquifer of the sinkhole plain region and to determine the dominant sources of anomalously large concentrations of nitrate in the regions groundwater. | | | | Date Created: | 11 29 2007 | | | | Agency ID: | Circular 570 | | | | ISL ID: | 000000007016 Original UID: 4679 FIRST WORD: Groundwater | |
| 269: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | The Commission on Government Forecasting and Accountabilitys revenue estimates formulated on a modified accrual basis in accordance with generally accepted accounting principles GAAP. | | | | Date Created: | 04 14 2008 | | | | Agency ID: | | | | | ISL ID: | 000000015913 Original UID: 8700 FIRST WORD: GAAP | |
| 270: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | The Commission on Government Forecasting and Accountability's revenue estimates formulated on a modified accrual basis in accordance with generally accepted accounting principles GAAP . | | | | Date Created: | 01 22 2008 | | | | Agency ID: | | | | | ISL ID: | 000000016020 Original UID: 8798 FIRST WORD: GAAP | |
| 271: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | The Commission on Government Forecasting and Accountabilitys revenue estimates formulated on a modified accrual basis in accordance with generally accepted accounting principles GAAP . | | | | Date Created: | 04 24 2006 | | | | Agency ID: | | | | | ISL ID: | 000000016021 Original UID: 8799 FIRST WORD: GAAP | |
| 272: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | The Commission on Government Forecasting and Accountability's revenue estimates formulated on a modified accrual basis in accordance with generally accepted accounting principles, GAAP. | | | | Date Created: | 06 07 2005 | | | | Agency ID: | | | | | ISL ID: | 000000016022 Original UID: 8800 FIRST WORD: GAAP | |
| 273: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | Revenue estimates formulated on a modified accrual basis in accordance with generally accepted accounting principles GAAP. | | | | Date Created: | 03 26 2004 | | | | Agency ID: | | | | | ISL ID: | 000000016023 Original UID: 8801 FIRST WORD: GAAP | |
| 274: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | Revenue estimates formulated on a modified accrual basis in accordance with generally accepted accounting principles GAAP . | | | | Date Created: | 06 12 2003 | | | | Agency ID: | | | | | ISL ID: | 000000016024 Original UID: 8802 FIRST WORD: GAAP | |
| 275: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | Revenue estimates formulated on a modified accrual basis in accordance with generally accepted accounting principles GAAP . | | | | Date Created: | 03 20 2002 | | | | Agency ID: | | | | | ISL ID: | 000000016025 Original UID: 8803 FIRST WORD: GAAP | |
| 276: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | Revenue estimates formulated on a modified accrual basis in accordance with generally accepted accounting principles GAAP . | | | | Date Created: | 03 14 2001 | | | | Agency ID: | | | | | ISL ID: | 000000016026 Original UID: 8804 FIRST WORD: GAAP | |
| 277: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | The Illinois Economic and Fiscal Commission's revenue estimates formulated on a modified accrual basis in accordance with generally accepted accounting principles. | | | | Date Created: | | | | | Agency ID: | | | | | ISL ID: | 000000017854 Original UID: NA for serial records FIRST WORD: GAAP | |
| 278: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | The purpose of the project was 1) to develop a model of shallow groundwater and surface water flow for a watershed and 2) to demonstrate the utility of analytic element modeling to test conceptual models developed from geologic modeling. | | | | Date Created: | 06 25 2010 | | | | Agency ID: | Circular 576 | | | | ISL ID: | 000000030369 Original UID: 14270 FIRST WORD: Groundwater | |
| 279: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | Shell is performing environmental investigations and remedial efforts for a benzene release area and other petroleum hydrocarbons discovered during investigations of that release at and near the ConocoPhillips Wood River Refinery in Roxana. These efforts are being overseen by the Illinois Environmental Protection Agency. | | | | Date Created: | 06 27 2011 | | | | Agency ID: | | | | | ISL ID: | 000000041301 Original UID: 21223 FIRST WORD: Groundwater | |
| 280: | | Title: | | | | | Volume/Number: | | | | | Issuing Agency: | | | | | Description: | Shell is performing environmental investigations and remedial efforts for a benzene release area and other petroleum hydrocarbons discovered during investigations of that release at and near the ConocoPhillips Wood River Refinery in Roxana. These efforts are being overseen by the Illinois Environmental Protection Agency. | | | | Date Created: | 06 27 2011 | | | | Agency ID: | | | | | ISL ID: | 000000041364 Original UID: 21223 FIRST WORD: Groundwater | |
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