We found 12 public water systems that could serve the same population as Cogswell Springs Water Works (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Mile Away Campground | Henniker | 400 | 0 | 3 |
| Keyser Pond Campground | Henniker | 300 | 0 | 2 |
| Dunkin Donuts | Henniker | 250 | 0 | 2 |
| Hellings Slopeside Rest/pub | Henniker | 200 | 0 | 0 |
| Rock N Birch Camping Area | Henniker | 125 | 0 | 6 |
| Dollar General Store 17389 | Henniker | 100 | 0 | 0 |
| Wood Hill Village | Henniker | 91 | 0 | 0 |
| Hhp | Henniker | 70 | 0 | 0 |
| Pats Peak Ski Area | Henniker | 47 | 0 | 0 |
| Granite State Forest West | Henniker | 37 | 0 | 0 |
| Henniker Motel | Henniker | 25 | 0 | 0 |
| Granite State Forest Southwest | Henniker | 20 | 0 | 0 |