National Water-Quality Assessment (NAWQA) Program

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Water Quality in Carbonate Aquifers in the United States

The Report Summary of Findings Study Design
The Report:
Scientific Investigations Report 2008-5240

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While available, copies of this report can be obtained by contacting the Pennsylvania Water Science Center at (717) 730-6946 or by e-mail at jbricker@usgs.gov

Aquifer confinement was one of the issues found to be an important factor affecting water quality

Confinement was categorized from well records. Wells were designated as being unconfined, confined, semiconfined, or mixed confinement. The semiconfined and mixed confined well types were grouped for analysis.

confinement section 2
Modified from 'Waller, Roger M., Ground Water and the Rural Homeowner, Pamphlet, U.S. Geological Survey, 1982

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