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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

USGS 400412075404301 CH 1229

Chester County, Pennsylvania
Latitude  40°04'11.2", Longitude  75°40'36.8" NAD83
Land-surface elevation 540 feet above NGVD29
The depth of the well is 165 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 Graphitic Gneiss, Amphibolite Facies (400GPCGA) local aquifer.

Period of record
Begin Date End Date Levels
1974-02-01 2024-03-18 582

 
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