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 |
|---|---|---|---|---|
| Center W/a-Caesar System | Carriere, MS | 6,455 | 973 | Clean |
| Boone County PWSD 4 | Hallsville, MO | 6,455 | 14 | Clean |
| City of Kenedy | Kenedy, TX | 6,454 | 122 | Clean |
| Banks Co - Mountain Creek | Homer, GA | 6,453 | 16 | Clean |
| Decatur Water Dept | Decatur, TN | 6,451 | 151 | Clean |
| Liberty City WSC | Kilgore, TX | 6,450 | 18 | Clean |
| Big Oaks MUD | Houston, TX | 6,450 | 4 | Detected |
| Eudora, City Of | Eudora, KS | 6,449 | 6 | Clean |
| City of Colusa | Colusa, CA | 6,447 | 8 | Clean |
| Salem Town of (Sc3710001) | Salem, SC | 6,444 | 62 | - |
| Geisinger Medical Center | Danville, PA | 6,442 | 473 | Clean |
| Central W/a-East Side | Philadelphia, MS | 6,442 | 256 | Clean |
| City of Gladewater | Gladewater, TX | 6,441 | 341 | Clean |
| Belpre City PWS | Belpre, OH | 6,441 | 135 | Detected |
| Montgomery County MUD 95 | Houston, TX | 6,435 | 10 | - |
| Sienna MUD 4 | Houston, TX | 6,435 | 37 | - |
| Union Gap Water | Union Gap, WA | 6,433 | 26 | Clean |
| Kaufman County MUD 14 | Dallas, TX | 6,432 | 8 | Detected |
| PA American Water Steelton | Hummelstown, PA | 6,428 | 226 | Clean |
| Nodaway County PWSD 1 | Maryville, MO | 6,428 | 23 | Detected |
| Camilla | Camilla, GA | 6,428 | 51 | Clean |
| Experimental | Juana Diaz, PR | 6,427 | 60 | Detected |
| Madison | Madison, GA | 6,427 | 18 | Clean |
| Stephens Co RWD #5 | Marlow, OK | 6,426 | 37 | Clean |
| Mount Vernon Water Works | Mount Vernon, IN | 6,426 | 623 | Detected |
| Aqua Illinois-Candlewick Dvn | Kankakee, IL | 6,426 | 87 | Clean |
| Donala WSD | Colorado Springs, CO | 6,421 | 284 | Clean |
| Countryside | Countryside, IL | 6,420 | 22 | Clean |
| Town of Brookfield San Dist 4 | Brookfield, WI | 6,419 | 216 | Detected |
| Aurora Utilities | Aurora, IN | 6,415 | 67 | Clean |
| US Army, Fort Buchanan | Guaynabo, PR | 6,411 | 241 | Detected |
| Ulysses, City Of | Ulysses, KS | 6,410 | 55 | Clean |
| Northern Ohio Rural Water - NW District | Norwalk, OH | 6,409 | 4 | Clean |
| Aliamanu | Schofield Barracks, HI | 6,406 | 21 | Clean |
| Douglas, City Of | Douglas, WY | 6,400 | 10 | Detected |
| City of Waveland | Waveland, MS | 6,400 | 1,087 | Clean |
| Desoto PWS | DE Soto, MO | 6,400 | 32 | Clean |
| Rib Mountain Water Utility | Wausau, WI | 6,398 | 10 | Detected |
| Trumbull Co. - Howland Twp PWS | Vienna, OH | 6,396 | 5 | Detected |
| Big Canoe Subdivision | Savannah, GA | 6,396 | 32 | Clean |
| South Lawrence Utilities | Mitchell, IN | 6,395 | 357 | Clean |
| Seelyville Water Works | Seelyville, IN | 6,393 | 53 | Clean |
| Watford City City Of | Watford City, ND | 6,390 | 37 | Clean |
| Garrett Water Utility | Garrett, IN | 6,390 | 37 | Clean |
| Atlantic Beach, Town Of | Atlantic Beach, NC | 6,380 | 45 | Clean |
| White Co Water & Sewerage Auth | Cleveland, GA | 6,380 | 18 | Clean |
| Ctwc - Crystal System | Clinton, CT | 6,378 | 305 | Detected |
| Los Angeles Cwwd 36-Val Verde | Alhambra, CA | 6,376 | 2 | Clean |
| Wise, Town Of | Wise, VA | 6,375 | 39 | Detected |
| Plaisance Water System | Opelousas, LA | 6,375 | 60 | Clean |