We found 12 public water systems that could serve the same population as Walter Calvert (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Greencastle Department Of Water | Greencastle | 12,699 | 8 | 42 |
| Putnamville Correctional Facility | Greencastle | 2,650 | 0 | 27 |
| South 43 Water Association, Inc. | Greencastle | 1,431 | 0 | 8 |
| Putnam Friends Of Youth Found. | Greencastle | 999 | 0 | 0 |
| Town Of Fillmore Utilities | Greencastle | 515 | 0 | 4 |
| Big Walnut Water Company | Greencastle | 500 | 0 | 15 |
| New Providence Missionary Baptist Church | Greencastle | 120 | 0 | 0 |
| Calverts Oak Leaf Park | Greencastle | 75 | 0 | 0 |
| Discovery Childrens Ministry | Greencastle | 60 | 0 | 0 |
| Walnut Ridge Park | Greencastle | 37 | 0 | 0 |
| Lazy Days Campground | Greencastle | 32 | 0 | 0 |
| Newgents Campground | Greencastle | 30 | 0 | 0 |