USGS Water-Year Summary 2020
05056215 EDMORE COULEE TRIBUTARY NEAR WEBSTER, ND
LOCATION - Lat 48°15'59", long 98°40'50" referenced to North American Datum of 1927, in sec.07, T.155 N., R.62 W., Ramsey County, ND, Hydrologic Unit 09020201, 100 ft west of culverts on county road, 9 mi east and 1.1 mi south of Webster.
DRAINAGE AREA - 148 mi² of which 44 mi² probably is noncontributing.
PERIOD OF RECORD - DAILY DISCHARGE--March 1986 to current year (seasonal records only).
PERIOD OF RECORD.--DAILY GAGE HEIGHT--April 2000 to current year (seasonal records only).
GAGE - Water-stage recorder. Datum of gage is 1,405.54 ft above NAVD88. In October 2019, datum was converted to NAVD88 datum using the National Geodetic Surveys VDATUM transformation tool. Prior to conversion to NAVD88 datum was published as 1,403.80 ft above NGVD29 (levels by ND State Water Commission, May 2007). Prior to March 1, 2007, the datum was noted as 1,400 ft above NGVD29, from topographic map. Prior to October 1986, nonrecording gage at present site and datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in spring of 1959 reached a stage of about 75.00 ft, from conversation with local residents.
EXTREMES FOR PERIOD OF RECORD - Maximum peak flow, 1,390 ft³/s, April 25, 1997, peak stage, 74.41 ft. Maximum peak stage, 75.06 ft, August 2, 1993.
PERIOD OF RECORD - Water year 1986 to current year.