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DESCRIPTION:

Latitude 41°57'54.1",   Longitude 95°58'20.1"   NAD83

Monona County, Iowa, Hydrologic Unit 10230003

Drainage area: 3,526 square miles

Datum of gage: 1,019.91 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1990-10-01	2025-12-23
Daily Data
Discharge, cubic feet per second	1942-05-07	2025-12-22	30454
Suspended sediment discharge, short tons per day -- sediment station	1939-04-11	1969-06-30	7731
Daily Statistics
Discharge, cubic feet per second	1942-05-07	2025-11-23	30425
Suspended sediment discharge, short tons per day -- sediment station	1939-04-11	1969-06-30	7731
Monthly Statistics
Discharge, cubic feet per second	1942-05	2025-11
Suspended sediment discharge, short tons per day -- sediment station	1939-04	1969-06
Annual Statistics
Discharge, cubic feet per second	1942	2026
Suspended sediment discharge, short tons per day -- sediment station	1939	1969
Peak streamflow	1940-06-04	2024-06-26	85
Field measurements	1942-09-04	2025-11-24	926
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1945-03-15	2014-09-15	923
Water-Year Summary	2006	2025	20
Revisions	Loading...

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