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Water-Year Summary for Site 06471510

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Available Parameters
00065 Gage height(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
06471510 ELM RIVER NEAR ORDWAY, SD
LOCATION - Lat 45°33'44.2", long 98°24'44.8" referenced to North American Datum of 1927, in NE 1/4 SE 1/4 SE 1/4 sec.09, T.124 N., R.63 W., Brown County, SD, Hydrologic Unit 10160004, on left bank at upstream side of bridge on Brown County Road 14, 1.1 mi south of Ordway, and 1.9 mi upstream of Aberdeen Municipal water treatment plant dam.
DRAINAGE AREA - 1,520 mi² of which 296 mi² probably is noncontributing.
REVISIONS HISTORY - WDR SD-10-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1999 to current year (seasonal mean daily gage height and yearly instantaneous peak gage height and discharge). Prior to October 1999 (March to April 1997), at downstream side of bridge, discharge measurements only.
GAGE - Seasonal water-stage recorder, crest-stage gage. Datum of gage is 1,293.27 feet above the North American Vertical Datum of 1988 (NAVD88) and 1,300 feet above the National Geodetic Vertical Datum of 1929 (NGVD29), from topographic map.
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 those for Apr. 21, 22, 24, 29, 2017 to May 8, 2017, which are poor. Satellite data-collection platform at station. Some regulation at low flow for Aberdeen municipal water supply by dam forming Elm Lake and other small reservoirs upstream, combined capacity, about 16,500 acre-ft.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge, 8,680 ft³/s (observed), Mar. 31, 1997, gage height, 15.10 ft; maximum gage height, 15.55 ft (observed), Mar. 29, 1997 (backwater from ice).
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 15,000 ft³/s, Mar. 26, 2009, gage height, 15.65 ft (backwater from ice, from floodmark); maximum gage height, 15.88ft, Apr. 5, 2019 (backwater from ice).