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Groundwater levels for the Nation

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Agency code = usgs
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  • 400805075565501
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USGS 400805075565501 CH 4041

Chester County, Pennsylvania
Hydrologic Unit Code 02040203
Latitude  40°08'05", Longitude  75°36'54" NAD27
Land-surface elevation 415 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 Mafic Gneiss, Granulite Facies (400MFCGG) local aquifer.
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Graph of groundwater level data at USGS 400805075565501 CH 4041
Breaks in the plot represent a gap of at least one year between field measurements.
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