| Similarity | Rank | |
|---|---|---|
| Sanitation | 0.839 | 43413 |
| Wastewater | 0.782 | 52649 |
| Sewer | 0.776 | 44938 |
| Disposal | 0.768 | 44203 |
| sanitary | 0.753 | 22968 |
| Sewage | 0.744 | 66452 |
| Reclamation | 0.738 | 54409 |
| Drainage | 0.728 | 48557 |
| Hygiene | 0.712 | 33008 |
| Irrigation | 0.706 | 40766 |
| Waste | 0.706 | 13424 |
| Stormwater | 0.702 | 62618 |
| Hazardous | 0.682 | 38834 |
| Landfill | 0.675 | 57827 |
| Groundwater | 0.675 | 66053 |
| Water | 0.674 | 2787 |
| Inspection | 0.664 | 19530 |
| Pollution | 0.659 | 29306 |
| Laundry | 0.658 | 28232 |
| Filtration | 0.658 | 63090 |
| Municipal | 0.656 | 14159 |
| Supply | 0.655 | 10965 |
| Sediment | 0.654 | 95198 |
| Contracting | 0.652 | 29882 |
| Litter | 0.652 | 57480 |