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DESCRIPTION:

Latitude 41°31'48.8",   Longitude 87°37'21.3"   NAD83

Cook County, Illinois, Hydrologic Unit 07120003

Drainage area: 24.7 square miles

Datum of gage: 610.89 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1986-09-01	2025-07-10
Daily Data
Discharge, cubic feet per second	1949-05-17	2025-07-09	27801
Gage height, feet	1993-10-01	2025-07-09	11269
Daily Statistics
Discharge, cubic feet per second	1949-05-17	2025-03-31	27713
Gage height, feet	1993-10-01	2025-03-31	11181
Monthly Statistics
Discharge, cubic feet per second	1949-05	2025-03
Gage height, feet	1993-10	2025-03
Annual Statistics
Discharge, cubic feet per second	1949	2025
Gage height, feet	1994	2025
Peak streamflow	1949-12-22	2024-04-01	75
Field measurements	1954-10-11	2025-06-24	449
Field/Lab water-quality samples	1974-10-01	1983-08-31	100
Water-Year Summary	2006	2024	19
Revisions	Loading...

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