USGS Water-Year Summary for Site 06337000

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	Available Parameters
	00060 Discharge(Mean)
	00065 Gage height(Mean)

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Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020

06337000 LITTLE MISSOURI RIVER NEAR WATFORD CITY, ND

LOCATION - Lat 47°35'43.58", long 103°15'48.13" referenced to North American Datum of 1983, in sec.35, T.148 N., R.99 W., McKenzie County, ND, Hydrologic Unit 10110205, at bridge on U.S. Highway 85 bridge crossing, 17 mi upstream from Cherry Creek, and 17.5 mi south of Watford City.

DRAINAGE AREA - 8,310 mi². approximately.

REVISIONS HISTORY - WSP 926: 1935. WSP 1270: 1943.

SURFACE-WATER RECORDS

PERIOD OF RECORD - DAILY DISCHARGE--October 1934 to current year.

PERIOD OF RECORD.--DAILY GAGE HEIGHT--October 2000 to current year.

GAGE -

Water-stage recorder. Datum of gage is 1930.8 ft above North American Vertical Datum of 1988 (NAVD88). National Geodetic Vertical Datum of 1929 (NGVD29) datum was converted to NAVD88 datum using the National Geodetic Surveys VDATUM transformation tool in November, 2017. Prior to October 1, 2017, datum was published as 1,929.03 ft above NGVD29.

Previous locations are as follows (from WSP 1729 or 1917 for history of changes prior to October 2, 1959):

October 1, 1990, to November 3, 2009; water-stage recorder at site 0.8 mi upstream at present datum.

November 28, 1964, to September 30, 1990; water-stage recorder at site at U.S. Highway 85 crossing at present datum.

June 18, 1963, to November 28, 1964; water-stage recorder at site 700 ft upstream at present datum.

October 2, 1959, to June 17, 1963; water-stage recorder at site at U.S. Highway 85 crossing at present datum.

April 16, 1943 to October 1, 1959; water stage recorder at site 1.0 miles upstream at present datum.

June 9, 1939 to April 15, 1943; Water-stage recorder at site 1.1 miles upstream at present datum.

Prior to June 9, 1939; water-stage recorder at site 1.0 miles upstream at present datum.

REMARKS - Accuracy of records for water years prior to 2014 are noted in the individual Annual Data Reports for those water years. For water years 2014 onward, records good except for estimated discharges, which are poor, unless otherwise noted.

EXTREMES FOR PERIOD OF RECORD - Maximum peak flow, 110,000 ft³/s, March 25, 1947, peak stage 24.00 ft, from floodmark, site and datum then in use.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water year 1972 to 2013.

PERIOD OF DAILY RECORD - SUSPENDED-SEDIMENT CONCENTRATION AND DISCHARGE--May 1947 to September 1976. Daily suspended-sediment discharge for October 1948 to September 1971 furnished by the U.S. Army Corps of Engineers.

EXTREMES FOR PERIOD OF DAILY RECORD - SUSPENDED-SEDIMENT CONCENTRATION: Maximum daily mean, 50,400 mg/L, June 22, 1947; minimum daily mean, 0.0 mg/L, January 12 to February 19, 1975. SUSPENDED-SEDIMENT DISCHARGE: Maximum daily, 1,890,000 tons/day, May 25, 1965; minimum daily, 0.0 tons/day, many days in many years.