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DESCRIPTION:

Latitude 41°49'33",   Longitude 87°54'01"   NAD83

Cook County, Illinois, Hydrologic Unit 07120004

Drainage area: 115 square miles

Contributing drainage area: 115.0 square miles,

Datum of gage: 624.72 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1986-09-01	2025-12-28
Daily Data
Discharge, cubic feet per second	1945-10-01	2025-12-27	29307
Gage height, feet	1994-02-28	2025-12-27	11378
Daily Statistics
Discharge, cubic feet per second	1945-10-01	2025-11-25	29275
Gage height, feet	1994-02-28	2025-11-25	11346
Monthly Statistics
Discharge, cubic feet per second	1945-10	2025-11
Gage height, feet	1994-02	2025-11
Annual Statistics
Discharge, cubic feet per second	1946	2026
Gage height, feet	1994	2026
Peak streamflow	1946-01-09	2025-08-19	80
Field measurements	1954-10-12	2025-11-26	463
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1974-10-11	2013-08-07	510
Water-Year Summary	2006	2025	20
Revisions	Loading...

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