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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2025
06478600 EAST FORK VERMILLION RIVER NEAR PARKER, SD
LOCATION - Lat 43°26'43", long 97°06'34" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 NE 1/4 sec.33, T.100 N., R.53 W., Turner County, SD, Hydrologic Unit 10170102, on left bank at downstream end of county highway bridge, 4.1 mi upstream from the confluence with West Fork Vermillion River, 14.5 mi west of Tea, and 3.5 mi north-northeast of Parker.
DRAINAGE AREA - 924 mi² of which 478 mi² probably is noncontributing.
REVISIONS HISTORY - WDR SD-97-1: 1996 (daily discharges, June 2-5, 21), 1996 (M), WDR SD-10-1: Drainage area. Discharge for the period Oct. 18, 2018, to Oct. 29, 2019, was revised on Nov. 30, 2020, based on changes to the stage-discharge rating. 2022 Water Year Summary; discharges from Mar. 20 to July 6 were revised on Feb. 16, 2023.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1995 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,321 ft above NAVD88, from topographic map. Prior to conversion to NAVD88, datum was published as 1,320 ft above NGVD29, from topographic map.
REMARKS -
Record quality ratings may not be included in the water-year summary for approved records newer than 09/30/2018. Record quality is still being rated internally. For questions about record quality ratings, please send email to gs-w-d_NWISWeb_Data_Inquiries@usgs.gov. Satellite data-collection platform at station. Flow affected by East Vermillion Lake Reservoir, capacity, 550 acres, located about 20 mi upstream.
