Temporal Changes In Shallow Ground-water Quality In Northeastern Illinois: Preliminary Results
Kelly, Walton R.
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https://hdl.handle.net/2142/54539
Description
Title
Temporal Changes In Shallow Ground-water Quality In Northeastern Illinois: Preliminary Results
Author(s)
Kelly, Walton R.
Issue Date
2001
Keyword(s)
groundwater
Geographic Coverage
Illinois
Abstract
The rapid increase in population and developed land in the Chicago, Illinois, metropolitan area has put a heavy demand on water resources. The water sources most likely to be exploited in this region over the next few decades are shallow aquifers. These shallow aquifers are vulnerable to
surface-derived contaminants, and the increase in developed land may be increasing the rate at
which ground-water quality is being degraded. Historical ground-water quality data from the
Chicago metropolitan area is being evaluated for data quality and temporal trends. Preliminary results indicate increases in the concentrations of most major ions, especially chloride, both regionally and for individual wells. Chloride concentrations have increased by over 4 mg L-1 yr-1 in a significant number of municipal wells. Changes appear to be most rapid in the outermost counties of the Chicago metropolitan area.
This document is a product of the Illinois Groundwater Consortium, and has been selected and made available by the Illinois State Water Survey and the University Library, University of Illinois at Urbana-Champaign. It is intended for research and educational use, and proper attribution is requested.
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