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DESCRIPTION:

Latitude 41°36'50.8",   Longitude 87°43'46.04"   NAD83

Cook County, Illinois, Hydrologic Unit 07120003

Drainage area: 12.6 square miles

Datum of gage: 619.99 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1989-08-18	2024-11-21
Daily Data
Discharge, cubic feet per second	1950-10-01	2024-11-20	27078
Gage height, feet	1993-10-01	2024-11-20	11065
Daily Statistics
Discharge, cubic feet per second	1950-10-01	2024-07-09	26945
Gage height, feet	1993-10-01	2024-07-09	10932
Monthly Statistics
Discharge, cubic feet per second	1950-10	2024-07
Gage height, feet	1993-10	2024-07
Annual Statistics
Discharge, cubic feet per second	1951	2024
Gage height, feet	1994	2024
Peak streamflow	1951-09-26	2023-09-17	73
Field measurements	1954-10-10	2024-10-24	466
Field/Lab water-quality samples	1974-10-09	1983-08-30	81
Water-Year Summary	2006	2023	18
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