| Pecatonica River | Pecatonica River | 158.67 | 187.00 | 889100 | River | Iowa, Lafayette | Total Phosphorus | Impairment Unknown | 303d Listed | Low |
| Unnamed | Trib To Livingston Br | 0.00 | 3.50 | 932800 | River | Iowa | Ammonia (Unionized) - Toxin | Acute Aquatic Toxicity | 303d Listed | Low |
| Unnamed | Trib To Livingston Br | 0.00 | 3.50 | 932800 | River | Iowa | Total Phosphorus | Acute Aquatic Toxicity, Degraded Biological Community | 303d Listed | Medium |
| Unnamed | Trib To Livingston Br | 0.00 | 3.50 | 932800 | River | Iowa | BOD | Low DO | 303d Listed | Low |
| Livingston Br | Livingston Branch | 0.00 | 11.62 | 932700 | River | Iowa | Ammonia (Unionized) - Toxin | Chronic Aquatic Toxicity | 303d Listed | Low |
| Livingston Br | Livingston Branch | 0.00 | 11.62 | 932700 | River | Iowa | BOD | Low DO | 303d Listed | Low |
| Livingston Br | Livingston Branch | 0.00 | 11.62 | 932700 | River | Iowa | Total Phosphorus | Degraded Biological Community, Low DO | 303d Listed | Medium |