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Water-Year Summary for Site 465243098284801
May 1967 to current year.
WELL CHARACTERISTICS.--Drilled observation well, depth 240 ft, cased with 195 ft of 4-in diameter steel pipe, slotted 195 to 210 ft below land-surface datum.
DATUM.--Altitude of land-surface datum is 1,467.82 ft above North American Vertical Datum of 1988 (surveyed by ND State Water Commission, accuracy 0.1 ft). Prior to October 1, 2017, land-surface datum was published as 1,466.6 ft above the National Geodetic Vertical Datum of 1929.
MEASURING POINT.--Top of casing 1.00 ft above land-surface datum.
EXTREMES FOR WATER YEAR 2014.--Highest water level, 31.46 ft below land-surface datum, September 24, 25; lowest water level recorded, 35.49 ft below land-surface datum, May 8, 9, may have been lower during period of no record, April 27 to May 8.
EXTREMES FOR WATER YEAR 2015.--Highest water level, 29.09 ft below land-surface datum, January 26; lowest water level recorded, 36.53 ft below land-surface datum, May 27.
EXTREMES FOR WATER YEAR 2016.--Highest water level, 33.88 ft below land-surface datum, January 29; lowest water level recorded, 36.68 ft below land-surface datum, July 1.