Development in deep sandstone aquifer along the Illinois River in La Salle County

Hoover, L.R.; Schicht, Richard John

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https://hdl.handle.net/2142/102000 Copy

Description

Title

Development in deep sandstone aquifer along the Illinois River in La Salle County

Author(s)

• Hoover, L.R.
• Schicht, Richard John

Issue Date

1967

Keyword(s)

Aquifers

Geographic Coverage

• Illinois
• La Salle County

Abstract

Large supplies of groundwater are developed from the Cambrian-Ordovician aquifer in La Salle County for municipal and industrial use. Yields of wells normally exceed 500 gpm. Pumpage was 11.2 mgd in 1963. Municipal wells at Peru and Oglesby are among the deepest in the state producing potable water, over 2800 feet. As a result of heavy pumping the original slope of the piezometric surface has steepened, and water levels have declined more than 100 feet in pumping centers. Recharge from vertical leakage based on flow-net analysis was estimated to be 14,000 and 7200 gallons per day per square mile in the northern and southern parts of the area, respectively. Hydraulic properties of the aquifer and its confining bed were estimated from available data. Estimates of future nonpumping water-level declines in the aquifer were made from a model aquifer and mathematical model. Estimated declines by the year 2000 are 195 feet at Ottawa and 98 feet at Peru. Sufficient drawdown is available for further development. This study provides data for planning and development of groundwater resources for the area.

Publisher

Illinois State Water Survey

Series/Report Name or Number

Illinois State Water Survey. Report of Investigation ; no. 59

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/102000

Copyright and License Information

Copyright 1967 Board of Trustees of the University of Illinois

Owning Collections