Delineation of time-related recharge areas for the City of Shelbyville well fields

"April 1997.""Contract report 611"--Cover."Prepared for the City of Shelbyville, Illinois."--Cover

An assessment of the hydrology and water quality of Indian Ridge Marsh and the potential effects of wetland rehabilitation on the diversity of wetland plant communities

"Contract Report 654" -- Cover.Bibliographic references: p. 62-65

Anthracospirifer opimus hall, Anthracospirifer curvilateralis Alatus moffet, and Neospirifer alatus dunbar and condra in the bird spring group at Arrow Canyon, Clark County, Nevada

Typescript.Thesis (B.S.) in Geology -- University of Illinois at Urbana-Champaign, 1987.Bibliography: leaves 19-20

The impact of emergency pumpage at the Decatur wellfields on the Mahomet aquifer: model review and recommendations

"June 2001.""Prepared for the city of Decatur.

Sources of Water for Communities in Northeastern Illinois

published or submitted for publicationis peer reviewedOpe

Hydrologic and Hydraulic Modeling for the Restoration of the Calumet Marshes: Assessment of Runoff Scenarios

Lake Calumet is located south of Lake Michigan. It is a site of former landfills and abandoned industrial facilities, yet a place of economical and ecological significance for the future development of the area. The marshes surrounding Lake Calumet are ecologically significant to the Black-crowned Night Heron but the hydrology in the area has been greatly impacted by the large amount of landfilling and the constantly changing land use and drainage of the surrounding uplands. In order to save threatened species, to prevent ecosystem degradation, and recreate a local economic base, the City of Chicago’s Department of Environment has been leading community groups and other agencies to develop plans to restore the region to a recreational area. Millions of dollars will be invested for the effort. To support the development plan for the Calumet Region to become an ecological park, hydrologic and hydraulic models have been developed for the region. These models serve as a basis for determining the best water management strategies for the Lake Calumet Cluster Sites and the adjacent open spaces, namely the Indian Ridge Marsh (IRM). An integrated hydrologic and hydraulic model was used to evaluate the hydrologic impacts of different remedial options proposed for the Cluster Sites and other upland properties in the marsh watersheds, and to assess the adequacy of the existing marsh outlets in terms of long-range ecological goals. This report evaluates six proposed management scenarios to cope with flooding and to establish a more suitable environment for Black-crowned Night Heron nests in the marsh areas by controlling water level fluctuations. For Black-crowned Night Heron nests, the maximum fluctuation is ten inches. Our study showed that diverting surface runoff from the Cluster Sites appeared to be the best option for limiting water level fluctuations to around six inches in the IRM.Illinois Sustainable Technology Center Sponsored Research Program ; HWR06-202Ope

Meeting the Growing Demand for Water: An Evaluation of the Shallow Ground-Water Resources in Will and Southern Cook Counties, Illinois

This study evaluates the heavily used shallow aquifer system in Will and southern Cook Counties and ascertains its ability to meet the present and future water supply needs of the communities it serves. The hydrogeologic evaluation involves an examination of existing data to determine the aquifer's geologic and hydraulic properties as well as the amount of water withdrawn from the aquifer. New data are used to determine ground-water flow directions, existing aquifer recharge rates, potential yield of the aquifer, and general ground-water quality.Ope

Water Withdrawals in Illinois, 2011

This report summarizes data collected by the Illinois Water Inventory Program for calendar year 2011. Water use data are presented for public water supply and self-supplied industry facilities within Illinois. The data are further categorized by county, township, Illinois priority planning areas, and within two major Illinois withdrawal areas: Chicago and central Illinois. Illinois water withdrawals during 2011 were 53,428.6 million gallons per day (mgd), of which groundwater supplied 513.4 mgd and surface water supplied 52,915.2 mgd. Public water supply (PWS) withdrew 1,508.3 mgd and self-supplied-industry (SSI) withdrew 51,920.3 mdg. Electric power generation is the largest water use in Illinois with 96.3 percent of the total water withdrawal. Excluding electric power withdrawals, 2011 groundwater use was 508.5 mgd, and surface water use was 1,489.8 mgd.Ope

Water Supply Planning: Middle Illinois Progress Report

This report presents a summary of 1) the technical information assembled to describe existing water availability and sources of supply within the 7-county (LaSalle, Livingston, Marshall, Peoria, Putnam, Stark, and Woodford Counties) Middle Illinois River Region in central Illinois (Figures 1 and 2) and 2) the development of preliminary computer models that will be used in future studies to estimate impacts to water availability resulting from future water development in the region. Through funding by the Illinois Department of Natural Resources (IDNR), the Illinois State Water Survey (ISWS) and Illinois State Geological Survey (ISGS) prepared this document for the Middle Illinois Regional Water Supply Planning Committee (MIRWSPC) to aid in the development of a plan for meeting the future growth of water supply demands within the basin to the year 2060. It contains background information to provide an overview of management criteria and an understanding of the constraints and policies used in conducting analyses and making decisions concerning water usage. Models will be applied to a broad range of conditions, including a set of selected future water use scenarios to more fully characterize water availability within the Middle Illinois River Region to the year 2060. In addition, as the MIRWSPC deliberates and prepares its water supply planning document, the information presented in this report will be reviewed and, in some cases, additional analysis may be performed and results revised. A more complete reporting of the model development, the results of the scenario simulations, and subsequent work concerning water availability will be published at the end of that forthcoming study. The existing technical information compiled as the first task of this study includes a review of previous analyses and publications dealing with the Middle Illinois River Region’s water resources; collection of hydrogeological and hydrologic data, primarily as needed for modeling; and, in certain cases, additional analyses of that data, such as data mining of well records and yield analyses of surface water supply sources. This compiled information focuses on the three primary sources of water supply within the Middle Illinois River watershed: 1) direct withdrawals from the Illinois River; 2) public supply systems using the Vermilion River and off-channel reservoirs at Pontiac and Streator; and 3) groundwater from within the Middle Illinois River basin. A companion report has been published (Meyer et al., In preparation) evaluating water demand scenarios out to 2060 for the Middle Illinois River, Northwest Illinois, and Kankakee River Regions.published or submitted for publicationis peer reviewedOpe

An Introductory Guide to the Mahomet Aquifer and Natural Gas Storage in East-Central Illinois

This introductory guide was developedby the NGWG in coordination with colleagues across PRI to provide basic information about the Mahomet aquifer and natural gas storage in east-central Illinois. PRI is available to the task force as a technical resourceand can draw on the expertise of PRIscientists and programs to help the task force meet its goals. PRI can also help identify additional data, reports, activities, or assessments that may be relevant to the task force. Requests for reports, presentations, and interactions are welcomed and can be prioritized based on needs of the task force and PRI.Ope