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DESCRIPTION:

Latitude 43°53'53",   Longitude 102°38'37"   NAD27

Pennington County, South Dakota, Hydrologic Unit 10120109

Drainage area: 11,208 square miles

Contributing drainage area: 11,204 square miles,

Datum of gage: 2,432.37 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2007-10-01	2025-12-10
Daily Data
Temperature, water, degrees Celsius	2007-04-04	2008-10-28	1221
Discharge, cubic feet per second	2007-04-01	2025-12-09	6825
Gage height, feet	2018-05-01	2025-12-09	1933
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2007-04-04	2008-10-28	951
Dissolved oxygen, water, unfiltered, milligrams per liter	2007-04-04	2008-10-28	1230
pH, water, unfiltered, field, standard units	2007-04-04	2008-10-28	833
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2007-04-04	2008-10-28	1074
Daily Statistics
Temperature, water, degrees Celsius	2007-04-05	2008-10-28	401
Discharge, cubic feet per second	2007-04-01	2024-10-10	6403
Gage height, feet	2018-05-01	2024-10-10	1627
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2007-04-05	2008-10-28	311
Dissolved oxygen, water, unfiltered, milligrams per liter	2007-04-04	2008-10-28	407
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2007-04-05	2008-10-28	355
Monthly Statistics
Temperature, water, degrees Celsius	2007-04	2008-10
Discharge, cubic feet per second	2007-04	2024-10
Gage height, feet	2018-05	2024-10
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2007-04	2008-10
Dissolved oxygen, water, unfiltered, milligrams per liter	2007-04	2008-10
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2007-04	2008-10
Annual Statistics
Temperature, water, degrees Celsius	2007	2009
Discharge, cubic feet per second	2007	2025
Gage height, feet	2018	2025
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2007	2009
Dissolved oxygen, water, unfiltered, milligrams per liter	2007	2009
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2007	2009
Peak streamflow	2007-08-03	2023-10-13	18
Field measurements	2007-04-03	2025-11-20	155
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	2007-03-31	2015-03-11	73
Water-Year Summary	2007	2024	18
Revisions	Loading...

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