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DESCRIPTION:

Latitude 42°25'55.1",   Longitude 93°48'21.4"   NAD83

Hamilton County, Iowa, Hydrologic Unit 07100005

Drainage area: 844 square miles

Datum of gage: 989.38 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1990-10-01	2025-11-23
Daily Data
Temperature, water, degrees Celsius	2011-11-22	2024-10-23	4009
Discharge, cubic feet per second	1940-03-09	2025-11-22	31305
Nitrate plus nitrite, water, total, short tons per day as nitrogen	2012-03-15	2017-10-01	1202
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2012-03-15	2017-10-01	1246
Daily Statistics
Temperature, water, degrees Celsius	2011-11-22	2022-05-02	3310
Discharge, cubic feet per second	1940-03-09	2025-08-26	31217
Nitrate plus nitrite, water, total, short tons per day as nitrogen	2012-03-15	2017-10-01	1202
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2012-03-15	2017-10-01	1246
Monthly Statistics
Temperature, water, degrees Celsius	2011-11	2022-05
Discharge, cubic feet per second	1940-03	2025-08
Nitrate plus nitrite, water, total, short tons per day as nitrogen	2012-03	2017-10
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen	2012-03	2017-10
Annual Statistics
Temperature, water, degrees Celsius	2012	2022
Discharge, cubic feet per second	1940	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	2018
Peak streamflow	1918-06-10	2024-05-24	86
Field measurements	1935-07-30	2025-08-27	1379
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1968-10-02	2018-01-09	277
Water-Year Summary	2006	2024	19
Revisions	Loading...

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