USGS Water-Year Summary 2024
395322077365301 FR 818
Valley and Ridge aquifers
Zullinger Formation
LOCATION - Lat 39°53'21.7", long 77°36'52.6" referenced to North American Datum of 1983, Franklin County, PA, Hydrologic Unit 02070004, near Chambersburg.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 202 ft. Upper casing diameter 6 in; top of first opening 37 ft, bottom of last opening 202 ft. Drilled unused observation well, cased to 37 ft, open hole.
DATUM - Land-surface datum is 772 ft above North American Vertical Datum of 1988. Measuring point: top of casing, 2.90 ft above land-surface datum, Jun. 15, 2001 to present. Elevation of land surface is from Lidar.
PERIOD OF RECORD - July 28, 2001 to current year.
GAGE - Data collection platform with 1-minute recording interval since September 19, 2017; prior recording interval was 60-minute. Satellite telemetry at station.
COOPERATION - Site maintained in cooperation with the Pennsylvania Department of Environmental Protection and the U.S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD - The extremes shown are extremes of the instantaneous depth below land surface for the period of record indicated above. Highest water level, 50.20 ft below land-surface datum, Jan 25, 2019; lowest, 82.97 ft below land-surface datum, Sept 22, 2002.