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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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USGS 394959075385301 CH 3491

Chester County, Pennsylvania
Hydrologic Unit Code 02040205
Latitude  39°49'59", Longitude  75°38'53" NAD27
Land-surface elevation 235 feet above NGVD29
The depth of the well is 40 feet below land surface.
This well is completed in the Piedmont and Blue Ridge crystalline-rock aquifers (N400PDMBRX) national aquifer.
This well is completed in the Wissahickon Formation, Oligoclase Mica Schist (300WSCKO) local aquifer.
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Graph of groundwater level data at USGS 394959075385301 CH 3491
Breaks in the plot represent a gap of at least one year between field measurements.
Download a presentation-quality graph