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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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Agency code = usgs
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  • 400126075492101
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USGS 400126075492101 CH 4231

Chester County, Pennsylvania
Hydrologic Unit Code 02040205
Latitude  40°01'26", Longitude  75°49'21" NAD27
Land-surface elevation 520 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 Felsic and Intermediate Gneiss, Amphibolite Facies (400FCIGA) local aquifer.
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Graph of groundwater level data at USGS 400126075492101 CH 4231
Breaks in the plot represent a gap of at least one year between field measurements.
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