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DESCRIPTION:

Latitude 41°36'25.3",   Longitude 87°35'51.3"   NAD83

Cook County, Illinois, Hydrologic Unit 07120003

Drainage area: 208 square miles

Datum of gage: 574.70 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1990-10-01	2025-07-10
Daily Data
Precipitation, total, inches	2000-10-01	2025-07-09	8031
Discharge, cubic feet per second	1947-10-01	2025-07-09	28407
Gage height, feet	1993-10-01	2025-07-09	11468
Daily Statistics
Discharge, cubic feet per second	1947-10-01	2025-05-20	28357
Gage height, feet	1993-10-01	2025-05-20	11418
Monthly Statistics
Discharge, cubic feet per second	1947-10	2025-05
Gage height, feet	1993-10	2025-05
Annual Statistics
Discharge, cubic feet per second	1948	2025
Gage height, feet	1994	2025
Peak streamflow	1947-04-06	2024-04-01	78
Field measurements	1954-10-11	2025-06-25	469
Field/Lab water-quality samples	1974-10-09	1988-08-12	102
Water-Year Summary	2006	2024	19
Revisions	Loading...

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