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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.

USGS 395342075102101 PH 12 Philadelphia County Observation Well


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Station gage imageSTATION.--395342075102101 PHILADELPHIA COUNTY, local well number PH12
LOCATION.--Lat 39`53'42", long 75`10'21", Hydrologic Unit 02040202, at Barracks and East Fourth Streets, Philadelphia.
OWNER.--U.S. Naval Base.
AQUIFER.--Middle Sand Unit of Potomac-Raritan-Magothy aquifer system of Late Cretaceous age.
WELL CHARACTERISTICS.--Drilled observation artesian well, diameter 8 in., depth 101 ft, cased to 93 ft, screened from 93-101 ft.
INSTRUMENTATION.--Data collection platform with 60-minute recording interval. Satellite telemetry at station.
DATUM.--Elevation of land surface is 8.6 ft above sea level. Measuring point: Top of casing, 1.8 ft above land-surface datum; 3.3 ft above land-surface datum since May 27, 1998.
REMARKS.--Daily maximum, minimum, and mean water levels since October 1994 are available from the District Office. Mean daily fluctuation caused by tidal loading, 0.20 ft.
PERIOD OF RECORD.--January 1952 to current year.
COOPERATION.--Funding for the operation of this station is provided by the Pennsylvania Department of Environmental Protection and the U.S. Geological Survey.
This station managed by the PAWSC Downingtown Field Office.

Available Parameters Period of Record
1952-01-01  2011-09-29


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Summary of all available data for this site
Instantaneous-data availability statement
*** There are no data available on the Waterdata system for the time period specified,
    although data may be available in the files of the local USGS office operating the station.