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DESCRIPTION:

Latitude 42°35'50",   Longitude 88°49'45"   NAD83

Rock County, Wisconsin, Hydrologic Unit 07090002

Drainage area: 199 square miles

Contributing drainage area: 196.67 square miles,

Datum of gage: 847 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1986-10-01	2025-09-20
Daily Data
Discharge, cubic feet per second	1939-09-25	2025-09-19	31407
Suspended solids, water, unfiltered, milligrams per liter	1998-09-01	2000-09-29	760
Suspended sediment concentration, milligrams per liter	1980-01-01	1982-09-29	1003
Suspended sediment discharge, short tons per day	1980-01-01	1982-09-29	1003
Phosphorus, water, unfiltered, pounds of phosphorus per day	1998-09-01	2000-09-29	760
Suspended solids dried at 105 degrees Celsius, water, unfiltered, short tons per day	1998-09-01	2000-09-29	760
Orthophosphate, water, dissolved, pounds per day	1998-09-01	2000-09-29	760
Daily Statistics
Discharge, cubic feet per second	1939-09-25	2025-03-13	31217
Suspended solids, water, unfiltered, milligrams per liter	1998-09-01	2000-09-29	760
Suspended sediment concentration, milligrams per liter	1980-01-01	1982-09-29	1003
Suspended sediment discharge, short tons per day	1980-01-01	1982-09-29	1003
Phosphorus, water, unfiltered, pounds of phosphorus per day	1998-09-01	2000-09-29	760
Suspended solids dried at 105 degrees Celsius, water, unfiltered, short tons per day	1998-09-01	2000-09-29	760
Orthophosphate, water, dissolved, pounds per day	1998-09-01	2000-09-29	760
Monthly Statistics
Discharge, cubic feet per second	1939-09	2025-03
Suspended solids, water, unfiltered, milligrams per liter	1998-09	2000-09
Suspended sediment concentration, milligrams per liter	1980-01	1982-09
Suspended sediment discharge, short tons per day	1980-01	1982-09
Phosphorus, water, unfiltered, pounds of phosphorus per day	1998-09	2000-09
Suspended solids dried at 105 degrees Celsius, water, unfiltered, short tons per day	1998-09	2000-09
Orthophosphate, water, dissolved, pounds per day	1998-09	2000-09
Annual Statistics
Discharge, cubic feet per second	1939	2025
Suspended solids, water, unfiltered, milligrams per liter	1998	2000
Suspended sediment concentration, milligrams per liter	1980	1982
Suspended sediment discharge, short tons per day	1980	1982
Phosphorus, water, unfiltered, pounds of phosphorus per day	1998	2000
Suspended solids dried at 105 degrees Celsius, water, unfiltered, short tons per day	1998	2000
Orthophosphate, water, dissolved, pounds per day	1998	2000
Peak streamflow	1938-02	2024-04-03	86
Field measurements	1987-08-17	2025-07-08	322
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1980-06-07	2002-10-17	188
Water-Year Summary	2006	2024	19
Revisions	Loading...

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