Public Water Systems
143,076 active public water systems, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Abingdon | Monmouth, IL | 3,275 | 109 | Detected |
| Rincon del Diablo MWD (ID-A) | Escondido, CA | 3,275 | 2 | - |
| Virden | Virden, IL | 3,274 | 30 | Clean |
| Casey | Casey, IL | 3,274 | 109 | Clean |
| Harris County MUD 8 | Houston, TX | 3,271 | 5 | Detected |
| Mount Sterling | Mt. Sterling, IL | 3,271 | 26 | - |
| St. Clair Township | St Clair, MI | 3,270 | 14 | - |
| Apple Valley (Consec) | Winter Park, FL | 3,269 | 39 | - |
| Eagle Lake | Eagle Lake, MN | 3,268 | 7 | - |
| Ferrysburg | Ferrysburg, MI | 3,268 | 2 | - |
| Peaks Mill Water District | Frakfort, KY | 3,268 | 34 | - |
| Dresden Water Dept | Dresden, TN | 3,265 | 13 | Clean |
| Taylorsville, Town Of | Taylorsville, NC | 3,265 | 8 | - |
| Caveland Environmental Authority, Inc. | Cave City, KY | 3,264 | 106 | Clean |
| Brillion Waterworks | Brillion, WI | 3,262 | 24 | Clean |
| Cleveland Municipal Authority | Cleveland, OK | 3,262 | 1,333 | - |
| South Grafton Water District | South Grafton, MA | 3,262 | 45 | - |
| Mobridge | Mobridge, SD | 3,261 | 44 | Clean |
| Mt Holly Springs Boro Auth | Mt Holly Springs, PA | 3,261 | 138 | - |
| Darbonne WS South | Bernice, LA | 3,261 | 301 | - |
| Greybull, Town Of | Greybull, WY | 3,260 | 93 | - |
| Freedom Sanitary District | Freedom, WI | 3,260 | 21 | - |
| Hub Water Association | Columbia, MS | 3,260 | 1,107 | Clean |
| Reedtown Water Assn | Utica, MS | 3,260 | 1,097 | Clean |
| Newport City Of | Newport, WA | 3,258 | 213 | - |
| Fort Bend County Fwsd 2 | Bellaire, TX | 3,258 | 38 | - |
| Ely | Ely, MN | 3,258 | 21 | Clean |
| Three Rivers Fire District | Three Rivers, MA | 3,258 | 42 | - |
| Oroville City Of | Oroville, WA | 3,256 | 92 | - |
| Clyde, Town Of | Clyde, NC | 3,256 | 29 | - |
| Dennis Water Association | Dennis, MS | 3,256 | 258 | - |
| WI DOT Rest Area 12 Dekorra West Bound | Madison, WI | 3,255 | 53 | - |
| Fox Island Mutual Water Assoc | Fox Island, WA | 3,255 | 415 | - |
| Marietta W/D (2320004) | Marietta, SC | 3,255 | 24 | - |
| Seminole Manor Subdivision | Town of Lake Clark Shores, FL | 3,255 | 10 | - |
| Hancock County Water & Sewer | Kiln, MS | 3,254 | 363 | - |
| Leesburg/Royal Highlands | Leesburg, FL | 3,254 | 13 | - |
| Dillon Town Of | Dillon, CO | 3,254 | 30 | - |
| Glasgow City Of | Glasgow, MT | 3,253 | 51 | - |
| Williston Town of (Sc0610002) | Williston, SC | 3,251 | 12 | - |
| City of Reno | Azle, TX | 3,250 | 127 | - |
| West TN State Penitentiary | Henning, TN | 3,250 | 94 | - |
| Walker Twp Water Assoc | Mingoville, PA | 3,250 | 393 | - |
| Stickross Mountain Water Co | Tahlequah, OK | 3,250 | 439 | - |
| New London Village PWS | New London, OH | 3,250 | 8 | - |
| Stevensville+rfl | Liberty, NY | 3,250 | 41 | - |
| Clayton Municipal Supply | Clayton, NM | 3,250 | 15 | - |
| Farmington Water Dept | Farmington, NH | 3,250 | 69 | - |
| New Madrid PWS | New Madrid, MO | 3,250 | 21 | - |
| Meijer #248 Solon Twp | Grand Rapids, MI | 3,250 | 24 | - |