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 |
|---|---|---|---|---|
| Hainesville | Volo, IL | 3,528 | 107 | Clean |
| Hot Spring Co Water Assoc | Donaldson, AR | 3,528 | 13 | Detected |
| La Grua | Santurce, PR | 3,527 | 162 | Clean |
| Middlesex Twp Muni Auth | Carlisle, PA | 3,527 | 235 | Clean |
| Berkeley Springs City Of | Berkeley Springs, WV | 3,526 | 229 | Clean |
| City of Magee | Magee, MS | 3,526 | 369 | Clean |
| Roanoke River Service Authority | Bracey, VA | 3,525 | 12 | - |
| Westlake Area Public Water System | Roanoke, VA | 3,525 | 9 | Detected |
| Knox County Water, Inc. | Vincennes, IN | 3,525 | 10 | - |
| Sterling Renaissance Festival | Sterling, NY | 3,523 | 10 | - |
| Lower Kula | Wailuku, HI | 3,522 | 145 | Clean |
| Fgua - Plantation Bay WTP | Longwood, FL | 3,522 | 118 | Clean |
| Clarendon Co W&S Hwy 260 (Sc1450013) | Manning, SC | 3,521 | 5 | - |
| Waterloo Waterworks | Waterloo, WI | 3,520 | 50 | Clean |
| Cedar Springs | Cedar Springs, MI | 3,520 | 18 | Clean |
| Fort Washakie | Fort Washakie, 08 | 3,520 | 406 | Detected |
| Harris County MUD 62 | Houston, TX | 3,519 | 6 | - |
| Quincy Water Association #1 | Amory, MS | 3,519 | 258 | Clean |
| Sauk City Waterworks | Sauk City, WI | 3,518 | 11 | Clean |
| Zillah City Of | Zillah, WA | 3,518 | 55 | - |
| Delta Village | Delta, OH | 3,518 | 181 | Detected |
| Desoto County Water System | Arcadia, FL | 3,518 | 13 | Detected |
| Western Wayne Water District | Wayne City, IL | 3,516 | 94 | - |
| Cleveland Water Works | Cleveland, AL | 3,516 | 68 | Clean |
| Lordstown Village PWS | Lordstown, OH | 3,515 | 21 | Detected |
| Cobb Area County Water District | Cobb, CA | 3,515 | 12 | - |
| Carrollton PWS | Carrollton, MO | 3,514 | 8 | Clean |
| Nicholls | Nicholls, GA | 3,514 | 26 | - |
| Ynp-Grant Village | Yellowstone, WY | 3,513 | 1 | - |
| Williamson County MUD 10 | Austin, TX | 3,513 | 4 | Detected |
| Union City Water Works | Union City, IN | 3,513 | 15 | Clean |
| Csp-Salt Point State Park | Mendocino, CA | 3,513 | 1 | - |
| Arizona Water Co - Pinetop Lakes | Phoenix, AZ | 3,513 | 9 | Clean |
| Naches Town Of | Naches, WA | 3,512 | 517 | Clean |
| Barranquitas Urbano | Barranquitas, PR | 3,511 | 662 | Clean |
| Harris County MUD 287 | Houston, TX | 3,510 | 0 | Clean |
| River Road Water System | Rayville, LA | 3,510 | 285 | - |
| Johnston City | Johnston City, IL | 3,509 | 20 | Detected |
| Arcadia Water System | Arcadia, LA | 3,508 | 60 | Clean |
| South Jacksonville | South Jacksonville, IL | 3,508 | 94 | Detected |
| Gretna, City Of | Gretna, FL | 3,508 | 45 | - |
| Huntsville Waterworks | Huntsville, AR | 3,508 | 35 | - |
| Colfax Water Department City Of | Colfax, WA | 3,507 | 46 | Clean |
| New Carroll Water System | Kilbourne, LA | 3,507 | 108 | Clean |
| Cameron Parish Ww District 11-Sweet Lake | Bell City, LA | 3,507 | 43 | Clean |
| Bunnell Water Plant | Bunnell, FL | 3,507 | 87 | - |
| Monticello | Monticello, GA | 3,505 | 23 | Clean |
| Village of Golf | Village of Golf, FL | 3,505 | 61 | Clean |
| Klein PUD | Houston, TX | 3,504 | 5 | Clean |
| Central Plains Water District | Fessenden, ND | 3,504 | 19 | Detected |