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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.



[!] ICE EFFECTS ON STREAMFLOW -- During cold weather, stage and discharge values may be affected by ice at some streamgages. Streamgages experiencing ice conditions will have the discharge record temporarily disabled to prevent the display of erroneous discharge values. Display of discharge record will resume when it is determined that ice conditions are no longer present. Adjustment of data affected by ice can only be done after detailed analysis.



! Important: Next Generation Monitoring Location Page

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  • 400456075320301
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USGS 400456075320301 CH 2561

Chester County, Pennsylvania
Hydrologic Unit Code 02040203
Latitude  40°04'27.8", Longitude  75°32'03.0" NAD83
Land-surface elevation 338 feet above NGVD29
The depth of the well is 240 feet below land surface.
This well is completed in the Piedmont and Blue Ridge carbonate-rock aquifers (N400PDMBRC) national aquifer.
This well is completed in the Elbrook Formation (371ELBK) local aquifer.
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Graph of groundwater level data at USGS 400456075320301 CH  2561
Breaks in the plot represent a gap of at least one year between field measurements.
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