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USGS Groundwater Information

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Principal aquifer

Color bar in aquifer map color

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Aquifers on National Atlas Map Browser

Aquifers' Data
and Description

Aquifer Wall Map


USGS links

Water Resources

Groundwater Information


Site links

list of aquifers

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 Pennsylvanian aquifers


map

Map of aquifers

Description and map of sandstone aquifers

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USGS Home Water Climate and Land Use Change Core Science Systems Ecosystems Energy and Minerals Environmental Health Natural Hazards

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URL: http://water.usgs.gov/ogw/aquiferbasics/penn.html
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Page Last Modified: Tuesday, 21-Jan-2014 16:37:45 EST