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DESCRIPTION:

Latitude 42°15'22",   Longitude 88°51'47"   NAD27

Boone County, Illinois, Hydrologic Unit 07090006

Drainage area: 538 square miles

Datum of gage: 738.50 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1986-09-01	2025-04-21
Daily Data
Discharge, cubic feet per second	1939-10-01	2025-04-20	31248
Gage height, feet	1990-10-01	2025-04-20	12251
Suspended sediment concentration, milligrams per liter	2006-05-12	2007-09-29	506
Suspended sediment discharge, short tons per day	2006-05-12	2007-09-29	506
Daily Statistics
Discharge, cubic feet per second	1939-10-01	2025-03-11	31208
Gage height, feet	1990-10-01	2025-03-11	12211
Suspended sediment concentration, milligrams per liter	2006-05-12	2007-09-29	506
Suspended sediment discharge, short tons per day	2006-05-12	2007-09-29	506
Monthly Statistics
Discharge, cubic feet per second	1939-10	2025-03
Gage height, feet	1990-10	2025-03
Suspended sediment concentration, milligrams per liter	2006-05	2007-09
Suspended sediment discharge, short tons per day	2006-05	2007-09
Annual Statistics
Discharge, cubic feet per second	1940	2025
Gage height, feet	1991	2025
Suspended sediment concentration, milligrams per liter	2006	2007
Suspended sediment discharge, short tons per day	2006	2007
Peak streamflow	1940-06-19	2024-04-04	85
Field measurements	1944-03-15	2025-03-12	428
Field/Lab water-quality samples	1974-10-08	2008-06-10	263
Water-Year Summary	2006	2024	19
Revisions	Loading...

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