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USGS Water-Year Summary 2024
403939076591001 SN 130
Valley and Ridge aquifers
Irish Valley Member of Catskill Formation
Irish Valley Member of Catskill Formation
LOCATION - Lat 40°39'40.4", long 76°59'08.0" referenced to North American Datum of 1983, Snyder County, PA, Hydrologic Unit 02050301, at State Game Land No. 194, and at Meiserville.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 100 ft. Upper casing diameter 6 in; top of first opening 40 ft, bottom of last opening 100 ft. Drilled observation well, cased to 40 ft, open hole.
DATUM - Land-surface datum is 730 ft above North American Vertical Datum of 1988. Measuring point: top of casing; MODIFIED DATE FOR AQ MIGRATION; 06/14/1968, 3.5 ft above land-surface datum, Jun. 1, 1968 to Jul. 11, 1968; top of plywood shelf, 3.55 ft above land-surface datum, Jul. 11, 1968 to Jul. 3, 2000; top of metal shelf, 3.47 ft above land-surface datum, Jul. 3, 2000 to present. Elevation of land surface is from Lidar.
PERIOD OF RECORD - June 1968 to current year.
GAGE - Data collection platform with 15-minute recording interval since April 2023; prior, 60-minute recording interval. Satellite telemetry at station.
COOPERATION - Site maintained in cooperation with the Pennsylvania Department of Environmental Protection and the U.S. Geological Survey.
REMARKS - Daily maximum water levels are available for this well for the period of record. For some years, daily minimum and daily mean water levels may also be available from the USGS Pennsylvania Water Science Center Office.
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, 9.98 ft below land-surface datum, Sep 07, 2011; lowest, 19.63 ft below land-surface datum, Jan 1, Jan 2, 1999.
