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DESCRIPTION:

Latitude 41°16'52.9",   Longitude 92°51'38.96"   NAD83

Mahaska County, Iowa, Hydrologic Unit 07100009

Drainage area: 12,479 square miles

Datum of gage: 670.92 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1990-10-01	2025-11-16
Daily Data
Discharge, cubic feet per second	1920-03-01	2025-11-15	38610
Daily Statistics
Discharge, cubic feet per second	1920-03-01	2025-07-28	38500
Monthly Statistics
Discharge, cubic feet per second	1920-03	2025-07
Annual Statistics
Discharge, cubic feet per second	1920	2025
Peak streamflow	1903-05-31	2024-10-04	107
Field measurements	1920-03-23	2025-09-23	1111
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1944-05-25	2008-06-15	204
Water-Year Summary	2006	2024	19
Revisions	Loading...

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