Watershed Impaired Waters

Impaired Waters in Watershed (LW15)

Official Name (Click for Details)	Local Name (Click for Map)	Start Mile	End Mile	WBIC	Water Type	County	Pollutant	Impairment	303 Status	Priority
West Branch Blue Mounds Creek	West Br Blue Mounds Creek	0.00	7.70	1250400	River	Iowa	Total Phosphorus	Impairment Unknown	303d Listed	Low
Twin Valley Lake	Twin Valley Lake			1245800	Reservoir	Iowa	Unknown Pollutant	Excess Algal Growth	303d Listed	Low
Wisconsin River	Wisconsin River	57.66	90.60	1179900	River	Columbia, Dane, Iowa, Sauk	PCBs	PCBs Contaminated Fish Tissue	303d Listed	Low
Cox Hollow Lake	Cox Hollow Lake			1246500	Reservoir	Iowa	Unknown Pollutant	Excess Algal Growth	303d Listed	Low
Black Earth Creek	Black Earth Creek	0.00	6.95	1248600	River	Dane, Iowa	Total Phosphorus	Degraded Biological Community	TMDL Alternative Approved	Not Applicable
Black Earth Creek	Black Earth Creek	0.00	6.95	1248600	River	Dane, Iowa	Unknown Pollutant	Degraded Biological Community	Pollutant Removed	Delisted 2018
Stewart Lake	Stewart Lake			1252300	Lake	Dane	Total Phosphorus	Excess Algal Growth, Eutrophication	303d Listed	Medium
Mill Creek	Mill Creek	0.00	15.78	1242200	River	Iowa	Total Phosphorus	Impairment Unknown	303d Listed	Low
Ryan Creek	Ryan Creek (Knights Hollow)	0.00	4.00	1242500	River	Iowa	Total Phosphorus	Degraded Fish Community	303d Listed	Medium