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Water-Year Summary for Site 391542077423801

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
72019 Water level, depth LSD(Max.,Min.)  

Water year 2021: 2021-10-01 to 2022-09-30
 

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USGS Water-Year Summary 2021
391542077423801 49Y 1 SOW 022
Piedmont and Blue Ridge crystalline-rock aquifers
Precambrian Erathem
LOCATION - Lat 39°15'42", long 77°42'38" referenced to North American Datum of 1927, Loudoun County, VA, Hydrologic Unit 02070008, 4.2 mi southeast of Harpers Ferry. Owner: American Telephone and Telegraph Company.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 516 ft. Upper casing diameter 6.50 in; top of first opening 64 ft, bottom of last opening 411 ft. Drilled unused water well, cased to 45 ft, open hole 45 to 516 ft.
DATUM - Land-surface datum is 1,062.24 ft above North American Vertical Datum of 1988. Measuring point: TOP OF CASING, 0.00 ft above land-surface datum, Sep. 30, 1987 to present.
PERIOD OF RECORD - August 1969 to current year.
GAGE - Electronic data logger and pressure transducer, 15-minute record interval. Oct. 1, 1996 to Dec. 3, 2003, occasional measurement with chalked tape by Virginia Department of Environmental Quality - Water Division personnel. Oct. 1, 1985 to Oct. 1, 1996, bimonthly measurement with chalked tape. Sept. 30, 1974 to Sept. 30, 1985, occasional measurement with chalked tape. Prior to Sept. 30, 1974, continuous strip-chart recorder.
REMARKS - Well is located in bedrock of Precambrian or Cambrian age.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 46.37 ft below land-surface datum, Mar. 13, 2010; lowest measured, 61.97 ft below land-surface datum, Jan. 23, 2002; lowest recorded, 61.97 ft below land-surface datum, Jan. 31, 2008.