| Similarity | Rank | |
|---|---|---|
| Stormwater | 0.885 | 62618 |
| wastewater | 0.871 | 17337 |
| groundwater | 0.819 | 17131 |
| effluent | 0.807 | 38366 |
| sewage | 0.799 | 15787 |
| rainwater | 0.796 | 23331 |
| NPDES | 0.787 | 98845 |
| runoff | 0.787 | 18872 |
| sewer | 0.784 | 13245 |
| floodplain | 0.784 | 46911 |
| Wastewater | 0.777 | 52649 |
| drainage | 0.765 | 10638 |
| wetland | 0.760 | 19211 |
| brownfield | 0.754 | 66903 |
| aquifer | 0.754 | 40456 |
| wetlands | 0.754 | 14228 |
| dewatering | 0.751 | 87432 |
| watersheds | 0.748 | 41406 |
| remediation | 0.744 | 21521 |
| Groundwater | 0.741 | 66053 |
| culverts | 0.738 | 73246 |
| catchment | 0.734 | 32983 |
| reclamation | 0.732 | 37715 |
| irrigation | 0.731 | 11652 |
| sediment | 0.723 | 19370 |