Impaired Water - Willow River (Willow River (140 St to 100th))
St. Croix County, Wisconsin
SC02
2606900
13.75 - 15.73
1.98
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
On the state's 303(d) impaired waters list since 1998 for Total Phosphorus (TP) and Biochemical Oxygen Demand (BOD). In TMDL Development for TP.

Biology for this segment of the Willow River appear to be in good condition based on 2014 evaluation.

This water is covered by a restoration plan: Implementation Plan for the Lake St. Croix Nutrient Total Maximum Daily Load (expires 2025).
Listing Details
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Low DO
Current Use
Coldwater - stocked, reproduction
Listing Status
TMDL Development
Attainable Use
Coldwater - stocked, reproduction
Priority
High
Designated Use
Coldwater - stocked, reproduction
303(d) ID
519
Listing Date
4/1/1998
Impaired Water Notes
Continuous DO Monitoring
6 mg/L DO Criteria Violations Seen in 8/9/88-8/12/88
No DO Violations Seen in 8/1/95-8/7/95
Date
3/25/2002

Impaired Water Notes
This stream is covered by the following restoration plan and was classified as Category 5W as a result: Implementation Plan for the Lake St. Croix Nutrient Total Maximum Daily Load (expires 2025).
Date
7/31/2019

 
Pollutant
BOD
Listed For
Fish and Aquatic Life
Impairments
Low DO
Current Use
Coldwater - stocked, reproduction
Listing Status
303d Listed
Attainable Use
Coldwater - stocked, reproduction
Priority
Low
Designated Use
Coldwater - stocked, reproduction
303(d) ID
519
Listing Date
4/1/1998
Impaired Water Notes
Continuous DO Monitoring
6 mg/L DO Criteria Violations Seen in 8/9/88-8/12/88
No DO Violations Seen in 8/1/95-8/7/95
Date
3/25/2002

Impaired Water Notes
This stream is covered by the following restoration plan and was classified as Category 5W as a result: Implementation Plan for the Lake St. Croix Nutrient Total Maximum Daily Load (expires 2025).
Date
7/31/2019