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Shapefile
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Geoscientific Information
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Farming
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Illinois Geospatial Data Clearinghouse
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1. Potential of Agricultural Chemical Contamination of Aquifers, 2004: Illinois
1995. Donald A. Keefer, Illinois State Geological Survey. This is a statewide SDE feature dataset for evaluating the potential for contamination of shallow aquifers by pesticides and nitrate. The sources o...