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DESCRIPTION:

Latitude 42°26'36",   Longitude 88°14'51"   NAD83

Mchenry County, Illinois, Hydrologic Unit 07120006

Drainage area: 192 square miles

Datum of gage: 746.00 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1985-10-01	2017-07-24
Daily Data
Precipitation, total, inches	1991-03-13	2017-07-23	8857
Discharge, cubic feet per second	1966-08-19	2017-07-23	18599
Gage height, feet	1987-10-01	2017-07-23	10521
Suspended sediment concentration, milligrams per liter	1997-12-01	1999-05-31	547
Suspended sediment discharge, short tons per day	1997-12-01	1999-05-31	547
Daily Statistics
Discharge, cubic feet per second	1966-08-19	2016-11-02	18339
Gage height, feet	1987-10-01	2016-11-02	10269
Suspended sediment concentration, milligrams per liter	1997-12-01	1999-05-31	547
Suspended sediment discharge, short tons per day	1997-12-01	1999-05-31	547
Monthly Statistics
Discharge, cubic feet per second	1966-08	2016-11
Gage height, feet	1987-10	2016-11
Suspended sediment concentration, milligrams per liter	1997-12	1999-05
Suspended sediment discharge, short tons per day	1997-12	1999-05
Annual Statistics
Discharge, cubic feet per second	1966	2017
Gage height, feet	1988	2017
Suspended sediment concentration, milligrams per liter	1998	1999
Suspended sediment discharge, short tons per day	1998	1999
Peak streamflow	1960-04	2015-11-28	52
Field measurements	1970-04-01	2017-07-12	392
Field/Lab water-quality samples	1909-02-01	1999-05-19	409
Water-Year Summary	2006	2016	11
Additional Data Sources	Begin Date	End Date	Count
Instantaneous-Data Archive  **offsite**	1985-10-01	2007-09-30	613008

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