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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 400308075554001 CH 4138

Chester County, Pennsylvania
Latitude  40°03'08", Longitude  75°55'40" NAD27
Land-surface elevation 670 feet above NGVD29
This well is completed in the Piedmont and Blue Ridge crystalline-rock aquifers (N400PDMBRX) national aquifer.
This well is completed in the Antietam, Harpers Formation (377AMHP) local aquifer.

Period of record
Begin Date End Date Levels
1991-05-23 1991-05-23 1

 
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