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Start Over You searched for: Place Delaware Remove constraint Place: Delaware Resource Type Polygon data Remove constraint Resource Type: Polygon data Subject Groundwater Remove constraint Subject: Groundwater

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2003. Geological Survey (U.S.). Water Resources Division. Wisconsin District. This polygon shapefile contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islan... Geological Survey (U.S.).