USGS Water-Year Summary 2024
404518077575501 CE 118
Valley and Ridge aquifers
Gatesburg Formation, Upper Sandy Member
LOCATION - Lat 40°45'19.6", long 77°57'58.5" referenced to North American Datum of 1983, Centre County, PA, Hydrologic Unit 02050204, at State Game Land No. 176, and near Fairbrook.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 130 ft. Upper casing diameter 6 in; top of first opening 40 ft, bottom of last opening 130 ft. Drilled observation well, cased to 40 ft, open hole.
DATUM - Land-surface datum is 1,146 ft above North American Vertical Datum of 1988. Measuring point: top of casing; MODIFIED DATE FOR AQ MIGRATION; 01/01/1968, 2.89 ft above land-surface datum, Jan. 18, 1967 to Dec. 12, 2007; top of instrument shelf, 2.95 ft above land-surface datum, Dec. 12, 2007 to present. Elevation of land surface is from Lidar.
PERIOD OF RECORD - January 1968 to June 1981, July 1984 to current year.
GAGE - Electronic data logger with 15-minute recording interval.
COOPERATION - Site maintained in cooperation with the Pennsylvania Department of Environmental Protection and the U.S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD - Prior to October 2000, the extremes shown were based on extremes of the daily maximum depth below land-surface datum. Since that date, the extremes are based on the instantaneous depth below land-surface datum. Highest water level, 43.86 ft below land-surface datum, Jul 1, 2005; lowest, 80.14 ft below land-surface datum, Mar 26, 1970.