| Saint Croix River | St Croix River | 17.44 | 44.72 | 2601400 | River | Polk, St. Croix | PCBs | PCBs Contaminated Fish Tissue | 303d Listed | Low  | 
| Saint Croix River | St Croix River | 44.72 | 54.55 | 2601400 | River | Polk | PCBs | PCBs Contaminated Fish Tissue | 303d Listed | Low  | 
| Apple Lake | Apple Lake |  |  | 2499000 | Lake | St. Croix | Total Phosphorus | Excess Algal Growth, Eutrophication | TMDL Approved | Not Applicable |