USGS Water-Year Summary for Site 482908099134601

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	72019 Water level, depth LSD(Max.,Min.)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

482908099134601 158-066-30BBB

Sand and gravel aquifers (glaciated regions)
Spiritwood Aquifer

LOCATION - Lat 48°29'10.05", long 99°13'55.16" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 sec.30, T.158 N., R.66 W., Towner County, ND, Hydrologic Unit 09020201,

GROUNDWATER RECORDS

DATUM - Land-surface datum is 1,481.66 ft above North American Vertical Datum of 1988. Measuring point: MP top of 5-in steel casing, 1.40 ft above land-surface datum, Jun. 26, 1980 to present.

PERIOD OF RECORD -

June 1980 to current year.

WELL CHARACTERISTICS.--Drilled observation well, depth 322 ft, cased with 208 ft of 5-in diameter steel pipe, No. 40 slot screen set 208 to 213 ft below land-surface datum.

DATUM.--Altitude of land-surface datum is 1,481.66 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 1,479.2 ft above the National Geodetic Vertical Datum of 1929.

MEASURING POINT.--Top of casing 1.40 ft above land-surface datum.

EXTREMES FOR WATER YEAR 2014.--Highest water level, 7.67 ft below land-surface datum, October 1, 11; lowest water level, 8.71 ft below land-surface datum, April 17, 21, 22.

EXTREMES FOR WATER YEAR 2015.--Highest water level, 7.96 ft below land-surface datum, October 1; lowest water level, 9.15 ft below land-surface datum, April 28, May 4.

EXTREMES FOR WATER YEAR 2016.--Highest water level, 7.99 ft below land-surface datum, August 3; lowest water level, 9.06 ft below land-surface datum, March 19.

EXTREMES FOR PERIOD OF RECORD - Highest water level, 7.37 ft below land-surface datum, July 9-11, 2011; lowest water level, 13.99 ft below land-surface datum, April 11-13, 1991.