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DESCRIPTION:

Latitude 41°34'40",   Longitude 93°36'19"   NAD27

Polk County, Iowa, Hydrologic Unit 07100008

Drainage area: 9,879 square miles

Datum of gage: 762.52 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1987-05-14	2017-07-23
Daily Data
Temperature, water, degrees Celsius -- sediment station	1944-10-01	1945-09-29	308
Discharge, cubic feet per second	1940-04-01	2017-07-22	28237
Suspended sediment concentration, milligrams per liter -- sediment station	1944-10-01	1947-09-29	1094
Suspended sediment discharge, short tons per day -- sediment station	1944-10-01	1947-09-29	1094
Daily Statistics
Discharge, cubic feet per second	1940-04-01	2017-04-02	28126
Suspended sediment concentration, milligrams per liter -- sediment station	1944-10-01	1947-09-29	1094
Suspended sediment discharge, short tons per day -- sediment station	1944-10-01	1947-09-29	1094
Monthly Statistics
Discharge, cubic feet per second	1940-04	2017-04
Suspended sediment concentration, milligrams per liter -- sediment station	1944-10	1947-09
Suspended sediment discharge, short tons per day -- sediment station	1944-10	1947-09
Annual Statistics
Discharge, cubic feet per second	1940	2017
Suspended sediment concentration, milligrams per liter -- sediment station	1945	1947
Suspended sediment discharge, short tons per day -- sediment station	1945	1947
Peak streamflow	1903-05-31	2015-12-15	78
Field measurements	1938-09-17	2017-06-26	1029
Field/Lab water-quality samples	1944-06-17	2012-08-21	296
Water-Year Summary	2006	2016	11
Additional Data Sources	Begin Date	End Date	Count
Instantaneous-Data Archive  **offsite**	1987-05-14	2007-09-30	332286

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