| Big Slough | Big Slough | 0.00 | 10.41 | 174500 | River | Columbia | Total Phosphorus | Impairment Unknown | 303d Listed | Low |
| Unnamed | Unnamed Trib To Mason Lake | 2.70 | 6.00 | 176300 | River | Adams | Sediment/Total Suspended Solids | Degraded Habitat | TMDL Approved | Not Applicable |
| Mason Lake | Mason Lake | | | 175700 | Reservoir | Adams, Marquette | Total Phosphorus | Excess Algal Growth, Elevated pH , Eutrophication | TMDL Approved | Not Applicable |
| Peppermill Creek | Peppermill Creek | 0.00 | 1.71 | 178400 | River | Adams | Sediment/Total Suspended Solids | NA | Water Delisted | Delisted 2008 |