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Shapefile
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Aquifers
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Massachusetts
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1. Massachusetts (EPA Designated Sole Source Aquifers, 1996)
MassGIS (Office : Mass.). The Sole Source Aquifer datalayer was compiled by the Department of Environmental Protection (DEP) Division of Water Supply (DWS). Seven Sole Sourc... MassGIS (Office : Mass.).
2. Principal Aquifers of the 48 Conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands
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.).