USGS Home
Contact USGS
Search USGS

National Water Information System: Web Interface

USGS Water Resources   

Data Category:
Home Current Conditions Site Information Mapper Surface Water Groundwater Water Quality Water Use Revisions Geographic Area:
United States Alabama Alaska American Samoa Arizona Arkansas British Columbia California Canton and Enderbury Islands Colorado Connecticut Delaware Dist. of Columbia Florida Georgia Guam Hawaii Idaho Illinois Indiana Iowa Johnston Atoll Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Midway Islands Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Northern Mariana Islands Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island Ryukyu Islands, Southern South Carolina South Dakota Swan Islands Tennessee Texas Trust Territories, Pacific Is U.S.Misc Caribbean Islands U.S.Misc Pacific Islands Utah Vermont Virgin Islands Virginia Wake Island Washington West Virginia Wisconsin Wyoming

Page Loading - Please Wait...

This page will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline.

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: 1,154.08 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1990-10-01	2026-01-22
Daily Data
Discharge, cubic feet per second	1981-07-10	2026-01-21	11153
Gage height, feet	2018-05-01	2026-01-21	2054
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2019-04-30	2026-01-21	1054
Daily Statistics
Discharge, cubic feet per second	1981-07-10	2024-10-01	10676
Gage height, feet	2018-05-01	2024-10-01	1697
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2019-04-30	2024-10-27	852
Monthly Statistics
Discharge, cubic feet per second	1981-07	2024-10
Gage height, feet	2018-05	2024-10
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2019-04	2024-10
Annual Statistics
Discharge, cubic feet per second	1981	2025
Gage height, feet	2018	2025
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2019	2025
Peak streamflow	1982-06-02	2024-06-25	38
Field measurements	1981-07-10	2026-01-12	364
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1981-10-07	2020-10-21	269
Water-Year Summary	2010	2024	15
Revisions	Loading...

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.