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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
410705076334901 CO 589
Valley and Ridge aquifers
Hamilton Group
Hamilton Group
LOCATION - Lat 41°07'03.6", long 76°33'48.6" referenced to North American Datum of 1983, Columbia County, PA, Hydrologic Unit 02050107, at State Game Land No. 226, near Millville.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 241 ft. Upper casing diameter 6.25 in; top of first opening 18 ft, bottom of last opening 241 ft. Drilled observation well, cased to 18 ft, open hole.
DATUM - Land-surface datum is 755 ft above North American Vertical Datum of 1988. Measuring point: top of recorder platform; MODIFIED DATE FOR AQ MIGRATION; 08/08/2001, 2.79 ft above land-surface datum, Jul. 11, 2001 to present. Elevation of land surface is from Lidar.
PERIOD OF RECORD - September 2001 to current year.
GAGE - Data collection platform with 15-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 mean water levels are available for this well for the period of record. For some years, daily minimum and daily maximum water levels may also be available from the USGS Pennsylvania Water Science Center Office.
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, 20.26 ft below land-surface datum, May 14, 2019; lowest, 38.01 ft below land-surface datum, Sept 17, 2001.
