Public Water Systems
1,599 active public water systems in MA, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Barre Water Department | Barre, MA | 4,098 | 217 | Clean |
| Wenham Water Dept. | Wenham, MA | 3,942 | 23 | Detected |
| North Brookfield Water Department | North Brookfield, MA | 3,903 | 78 | Clean |
| North Raynham Water District | Raynham, MA | 3,902 | 5 | Detected |
| South Deerfield Water Supply District | South Deerfield, MA | 3,800 | 96 | Clean |
| Westminster Department of Public Works | Westminster, MA | 3,741 | 34 | Clean |
| Cherry Valley/ Rochdale Water District | Rochdale, MA | 3,696 | 227 | Detected |
| Ashburnham Water Department | Ashburnham, MA | 3,680 | 214 | Clean |
| Essex Water Dept. | Essex, MA | 3,675 | 43 | - |
| McI Shirley | Milford, MA | 3,500 | 172 | Detected |
| Boylston Water District | Boylston, MA | 3,343 | 140 | Detected |
| Nahant Water Dept. (Mwra) | Nahant, MA | 3,334 | 29 | Clean |
| South Grafton Water District | South Grafton, MA | 3,262 | 45 | - |
| Three Rivers Fire District | Three Rivers, MA | 3,258 | 42 | - |
| Leicester Water Supply District | Leicester, MA | 3,200 | 184 | - |
| Sunderland Water District | Sunderland, MA | 3,190 | 50 | - |
| Hatfield Water Dept | Hatfield, MA | 3,183 | 71 | Detected |
| Belchertown Water District | Belchertown, MA | 3,098 | 26 | Clean |
| West Newbury Water Department | West Newbury, MA | 3,080 | 11 | Clean |
| Hanscom Family Housing (Landings) | El Paso, MA | 3,067 | 6 | - |
| Pilot Travel Center | Knoxville, MA | 3,000 | 72 | - |
| Wellesley College | Wellesley, MA | 3,000 | 33 | - |
| Hale Education, Inc. | Westwood, MA | 3,000 | 5 | - |
| Siasconset Water Department | Nantucket, MA | 3,000 | 89 | - |
| Dcr Horseneck Beach State Reservation | Boston, MA | 3,000 | 33 | - |
| Plymouth South High School | North Plymouth, MA | 2,875 | 124 | - |
| McI Bridgewater | Milford, MA | 2,802 | 33 | - |
| Stockbridge Water Dept | Stockbridge, MA | 2,800 | 30 | - |
| East Chelmsford Water District | Chelmsford, MA | 2,800 | 180 | - |
| Wilkinsonville Water District | Sutton, MA | 2,773 | 145 | - |
| Wachusett Mountain Ski Area | Princeton, MA | 2,500 | 76 | - |
| Tewksbury Hospital | Tewksbury, MA | 2,500 | 215 | - |
| West Brookfield Water Department | West Brookfield, MA | 2,477 | 58 | - |
| Agawam Springs Water Company | Wareham, MA | 2,380 | 6 | - |
| Lanesborough Fire and Water District | Lanesborough, MA | 2,324 | 26 | - |
| Warren Water District | Warren, MA | 2,289 | 28 | - |
| Elm Hill Water District | Auburn, MA | 2,278 | 34 | - |
| Aquarion Water Company | Millbury, MA | 2,267 | 11 | - |
| Byfield Water District | Byfield, MA | 2,228 | 35 | - |
| McI Norfolk/Cedar Junction/Walpole | Milford, MA | 2,200 | 19 | Clean |
| Huntington Water Dept | Huntington, MA | 2,180 | 36 | - |
| Freetown/Lakeville Regional School Dist. | Lakeville, MA | 1,991 | 19 | - |
| Aquarion Water Company (Dover) | Millbury, MA | 1,922 | 43 | - |
| West Groton Water Supply District | Groton, MA | 1,853 | 61 | - |
| Shelburne Falls Fire District | Shelburne Falls, MA | 1,806 | 28 | - |
| Hinsdale Water Dept | Hinsdale, MA | 1,800 | 91 | - |
| Southfield Redevelopement Authority | Weymouth, MA | 1,800 | 1 | - |
| Monument Mtn Regional Hs | Stockbridge, MA | 1,700 | 151 | - |
| Sutton Public Schools | Sutton, MA | 1,700 | 40 | - |
| Mendon Twin Drive IN | Allston, MA | 1,600 | 78 | - |