USGS Water-Year Summary 2024
400229075104601 PH 1043
Piedmont and Blue Ridge crystalline-rock aquifers
Wissahickon Gneiss
LOCATION - Lat 40°02'29.3", long 75°10'45.6" referenced to North American Datum of 1983, Philadelphia County, PA, Hydrologic Unit 02040203, at Germantown Mennonite Historic Trust near intersection of Germantown Ave. and Pastorius St.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 18.6 ft. Upper casing diameter 60 in; top of first opening undefined, bottom of last opening undefined. Well sounded at a depth of 18.73 ft on May 28, 2020.
DATUM - Land-surface datum is 272 ft above North American Vertical Datum of 1988. Measuring point: Upper, inside edge of bench at well's NW top edge, 0.00 ft above land-surface datum, Nov. 8, 2010 to present.
PERIOD OF RECORD - October 2011 to current year.
GAGE - Data collection platform with 15-minute recording interval.
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with the Pennsylvania Department of Environmental Protection and the City of Philadelphia Water Department.
PERIOD OF DAILY RECORD - September 2012 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 10.73 ft below land-surface datum, May 1, 2014; lowest, 17.72 ft below land-surface datum, Oct 8, 2012.