Hydrogeology and results of aquifer tests in the vicinity of a hazardous-waste disposal site near Byron, Illinois

Kay, Robert T.; Olson, David N.; Ryan, Barbara J.

Abstract:

The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, conducted an investigation of a Superfund Site near Byron, Illinois. The purpose of the investigation was to determine the hydrogeologic properties of the Galena-Platteville and St. Peter aquifers, the primary water-supply aquifers for domestic supply in the area. The Galena and Platteville Groups and older St. Peter Sandstone are separated by the Harmony Hill Shale Member of the Glenwood Formation. The Harmony Hill Shale Member is a semiconfining unit. Groundwater flow in the study area is from the site northwestward to the Rock River. Movement of groundwater in the dolomites is mainly through joints, fractures, and solution openings. Analysis of the Galena-Platteville aquifer-test data indicates that the calculated aquifer transmissivity ranges from 490 to 670 sq ft/day, and the calculated specific yield ranges from 0.017 to 0.140. Aquifer test data also indicate that the Galena-Platteville aquifer is heterogeneous and anisotropic. Analysis of the St. Peter aquifer-test data indicates that the calculated transmissivity of the aquifer ranges from 1,200 to 1 ,305 sq ft/day, storativity ranges from 0.000528 to 0.00128, horizontal hydraulic conductivity ranges from 2.9 to 3.1 ft/day, and leakage through the Harmony Hill Shale Member ranges from .000123 to .000217 ft/day/ft. (USGS)

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USGS Numbered Series

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27988

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Kay, Robert T.; Olson, David N.; Ryan, Barbara J.

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ENGLISH

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vi, 56 p. :ill. ;28 cm.

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U.S. Geological Survey ; Books and Open-File reports (distributor),

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Water-Resources Investigations Report

Citation Series Code:

WRI

Citation Series Number:

89-4081

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Hydrogeology and results of aquifer tests in the vicinity of a hazardous-waste disposal site near Byron, Illinois; 1989; WRI; 89-4081; Kay, Robert T.; Olson, David N.; Ryan, Barbara J.

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1989

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citation/reference

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Hydrogeology and results of aquifer tests in the vicinity of a hazardous-waste disposal site near Byron, Illinois; 1989; WRI; 89-4081; Kay, Robert T.; Olson, David N.; Ryan, Barbara J.