Watershed Impaired Waters

Impaired Waters in Watershed (LW11)

Official Name (Click for Details)	Local Name (Click for Map)	Start Mile	End Mile	WBIC	Water Type	County	Pollutant	Impairment	303 Status	Priority
Rush Creek	Rush Creek	0.00	6.02	1240100	River	Iowa	Sediment/Total Suspended Solids	NA	Water Delisted	Delisted 2016
Otter Creek	Otter Creek	0.00	14.89	1237100	River	Iowa	Sediment/Total Suspended Solids	Degraded Habitat	TMDL Approved	Not Applicable
Otter Creek	Otter Creek	0.00	14.89	1237100	River	Iowa	Total Phosphorus	Impairment Unknown	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
Wisconsin River	Wisconsin River	27.68	57.66	1179900	River	Crawford, Grant, Iowa, Richland	PCBs	PCBs Contaminated Fish Tissue	303d Listed	Low
Blackhawk Lake	Blackhawk Lake			1239400	Reservoir	Iowa	Total Phosphorus	Impairment Unknown, Excess Algal Growth	Pollutant Removed	Delisted 2024
Blackhawk Lake	Blackhawk Lake			1239400	Reservoir	Iowa	Unknown Pollutant	Excess Algal Growth	303d Listed	Low
Otter Creek	Otter Creek	14.89	19.86	1237100	River	Iowa	Sediment/Total Suspended Solids	Degraded Habitat	TMDL Approved	Not Applicable
Otter Creek	Otter Creek	14.89	19.86	1237100	River	Iowa	Unknown Pollutant	Elevated Water Temperature	303d Listed	Low
Otter Creek	Otter Creek	21.37	23.30	1237100	River	Iowa	Sediment/Total Suspended Solids	Degraded Habitat	TMDL Approved	Not Applicable