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DESCRIPTION:

Latitude 42°59'45",   Longitude 97°22'10"   NAD27

Yankton County, South Dakota, Hydrologic Unit 10160011

Drainage area: 20,962 square miles

Contributing drainage area: 18,906 square miles,

Datum of gage: 1,153.38 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1990-10-01	2017-07-20
Daily Data
Discharge, cubic feet per second	1981-07-10	2017-07-19	8045
Suspended sediment concentration, milligrams per liter	1981-10-01	1983-09-29	729
Suspended sediment discharge, short tons per day	1981-10-01	1983-09-29	729
Daily Statistics
Discharge, cubic feet per second	1981-07-10	2016-10-30	7783
Suspended sediment concentration, milligrams per liter	1981-10-01	1983-09-29	729
Suspended sediment discharge, short tons per day	1981-10-01	1983-09-29	729
Monthly Statistics
Discharge, cubic feet per second	1981-07	2016-10
Suspended sediment concentration, milligrams per liter	1981-10	1983-09
Suspended sediment discharge, short tons per day	1981-10	1983-09
Annual Statistics
Discharge, cubic feet per second	1981	2017
Suspended sediment concentration, milligrams per liter	1982	1983
Suspended sediment discharge, short tons per day	1982	1983
Peak streamflow	1982-06-02	2016-05-05	30
Field measurements	1981-07-10	2017-07-10	293
Field/Lab water-quality samples	1981-10-07	2015-10-06	267
Water-Year Summary	2010	2016	7
Additional Data Sources	Begin Date	End Date	Count
Instantaneous-Data Archive  **offsite**	1990-10-01	1995-09-30	26598

OPERATION:

Record for this site is maintained by the USGS South Dakota Water Science Center

Email questions about this site to South Dakota Water Science Center Water-Data Inquiries

ADDITIONAL INFORMATION

National Weather Service Floodstage 12.0 ft.