| Unnamed | Local Water | 0.00 | 2.46 | 917800 | River | Lafayette | Total Phosphorus | Impairment Unknown | 303d Listed | Medium |
| Pecatonica River | Pecatonica River | 93.05 | 144.80 | 889100 | River | Green, Lafayette | Total Phosphorus | Impairment Unknown | 303d Listed | Low |
| Unnamed | Unnamed Tributary to Silver Spring Creek | 0.00 | 1.43 | 5040863 | River | Lafayette | Total Phosphorus | Degraded Biological Community | 303d Listed | Medium |
| Silver Spring Creek | Silver Spring Creek | 0.00 | 5.90 | 917700 | River | Lafayette | Total Phosphorus | Degraded Biological Community | 303d Listed | Low |
| Silver Spring Creek | Silver Spring Creek | 0.00 | 5.90 | 917700 | River | Lafayette | Sediment/Total Suspended Solids | Degraded Habitat | TMDL Approved | Not Applicable |
| Brown Br | Brown Branch | 0.00 | 4.60 | 915900 | River | Lafayette | Unknown Pollutant | Degraded Biological Community | 303d Listed | Low |
| Feather Br | Feather Branch | 0.00 | 5.00 | 917400 | River | Lafayette | Total Phosphorus | Degraded Biological Community | 303d Listed | Medium |