USGS Water-Year Summary 2024
415607080044601 ER 82
Mississippian aquifers
Venango Formation
LOCATION - Lat 41°56'04.8", long 80°04'44.4" referenced to North American Datum of 1983, Erie County, PA, Hydrologic Unit 05010004, near McLane.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 82 ft. Upper casing diameter 6 in; top of first opening 56 ft, bottom of last opening 82 ft. Drilled observation well, cased to 56 ft, open hole.
DATUM - Land-surface datum is 1,410 ft above North American Vertical Datum of 1988. Measuring point: top of metal table, 3.45 ft above land-surface datum, May 17, 2001 to present. Prior to May 17, 2001, top of plywood cover, 3.50 ft above land-surface datum. Elevation of land surface is from Lidar.
PERIOD OF RECORD - July 1966 to current year.
GAGE - Data collection platform with 60-minute recording interval since May 17, 2001. 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 - Prior to October 2000, the extremes 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, 10.00 ft below land-surface datum, Mar 17, 1973; lowest, 24.89 ft below land-surface datum, Oct 21-23, 1998.