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DESCRIPTION:

Latitude 41°32'02.5",   Longitude 93°56'59.2"   NAD83

Dallas County, Iowa, Hydrologic Unit 07100006

Drainage area: 3,441 square miles

Datum of gage: 836.49 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1986-10-01	2025-09-20
Daily Data
Temperature, water, degrees Celsius	2012-03-14	2022-07-14	3650
Discharge, cubic feet per second	1915-04-25	2025-09-19	40326
Nitrate plus nitrite, water, total, short tons per day as nitrogen	2012-03-02	2025-09-20	2669
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2012-03-02	2025-09-20	4547
Daily Statistics
Temperature, water, degrees Celsius	2012-03-14	2022-06-27	3648
Discharge, cubic feet per second	1915-04-25	2025-08-18	40294
Nitrate plus nitrite, water, total, short tons per day as nitrogen	2012-03-02	2017-12-30	1592
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2012-03-02	2025-08-11	4507
Monthly Statistics
Temperature, water, degrees Celsius	2012-03	2022-06
Discharge, cubic feet per second	1915-04	2025-08
Nitrate plus nitrite, water, total, short tons per day as nitrogen	2012-03	2017-12
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2012-03	2025-08
Annual Statistics
Temperature, water, degrees Celsius	2012	2022
Discharge, cubic feet per second	1915	2025
Nitrate plus nitrite, water, total, short tons per day as nitrogen	2012	2018
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2012	2025
Peak streamflow	1915-05-29	2024-05-22	110
Field measurements	1915-04-24	2025-08-19	1146
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1944-06-17	2019-09-16	327
Water-Year Summary	2006	2024	19
Revisions	Loading...

OPERATION:

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