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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 402643075150501 BK 929 Bucks County Observation Well


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Station gage imageSTATION.--402643075150501 BUCKS COUNTY, local well number BK929
LOCATION.--Lat 40`26'42.4', long 75`15'1.6", Hydrologic Unit 02040105, at Nockamixon State Park.
OWNER.--U.S. Geological Survey.
AQUIFER.--Shale of Brunswick Formation of Late Triassic age.
WELL CHARACTERISTICS.--Drilled observation well, diameter 6 in., depth 116 ft, cased to 27 ft, open hole.
INSTRUMENTATION.--Electronic data logger with 15-minute recording interval since April 2023; prior, 60-minute recording interval.
DATUM.--Elevation of land surface is 487 ft above North American Vertical Datum of 1988, from Lidar. Measuring point: Top of plywood shelf, 3.0 ft above land-surface datum. Prior to Mar. 17, 1980, top of casing, 1.05 ft above land-surface datum. Prior to June 1970, land surface datum was approximately 16 feet lower.
REMARKS.--Daily maximum, minimum, and mean water levels since October 1994 are available from the District Office.
PERIOD OF RECORD.--November 1967 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 New Cumberland Office.

Available Parameters Period of Record
1967-11-22  2024-04-23


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