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Groundwater levels for Pennsylvania

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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.



! Important: Next Generation Monitoring Location Page

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USGS 394927075430401 CH 3478

Chester County, Pennsylvania
Hydrologic Unit Code 02040205
Latitude  39°49'27", Longitude  75°43'04" NAD27
Land-surface elevation 260 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 Wissahickon Formation, Oligoclase Mica Schist (300WSCKO) local aquifer.
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Graph of groundwater level data at USGS 394927075430401 CH  3478
Breaks in the plot represent a gap of at least one year between field measurements.
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