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 |
|---|---|---|---|---|
| Eldon PWS | Eldon, MO | 4,895 | 35 | Clean |
| Libby City Of | Libby, MT | 4,892 | 341 | Clean |
| West Milton Village PWS | West Milton, OH | 4,890 | 330 | Clean |
| Berry, Town Of | Berry, AL | 4,887 | 62 | Clean |
| Baldwin City, City Of | Baldwin City, KS | 4,882 | 45 | Clean |
| Harris County MUD 383 | Houston, TX | 4,881 | 30 | Detected |
| Chisholm Heights Water & F P Authority | Florence, AL | 4,881 | 51 | Detected |
| Buena Borough Mua | Landsville, NJ | 4,880 | 5 | Clean |
| Ogallala, City Of | Ogallala, NE | 4,878 | 99 | Clean |
| Four Mile Hill Public Facilities Board | Searcy, AR | 4,877 | 13 | Clean |
| Tuscola | Tuscola, IL | 4,875 | 41 | Clean |
| Moore Creek Mount Carmel Utilities | Jay, FL | 4,875 | 43 | Detected |
| Cedar Bluff Utilities Board | Cedar Bluff, AL | 4,875 | 12 | Clean |
| Glendive City Of | Glendive, MT | 4,873 | 278 | Clean |
| Palos Park | Palos Park, IL | 4,873 | 4 | Clean |
| Kleinwood MUD | Houston, TX | 4,872 | 10 | - |
| Longmire | Ashford, WA | 4,871 | 214 | Clean |
| Buchanan | Buchanan, MI | 4,871 | 30 | Clean |
| Hadley Dpw Water Division | Hadley, MA | 4,871 | 43 | Clean |
| Epcor - Tierra del Rio | El Mirage, AZ | 4,868 | 3 | Clean |
| Brushy Creek WSC | Montalba, TX | 4,866 | 33 | Clean |
| Pontotoc Co RWD # 7 | Ada, OK | 4,863 | 24 | Clean |
| Lone Grove | Lone Grove, OK | 4,863 | 250 | Clean |
| Ottawa Village | Ottawa, OH | 4,863 | 561 | Detected |
| Rockford | Albertville, MN | 4,863 | 20 | Clean |
| American Falls City Of | American Falls, ID | 4,863 | 215 | Clean |
| La Cumbre Mutual Water Co | Santa Barbara, CA | 4,861 | 7 | Clean |
| City of Lytle | Lytle, TX | 4,860 | 66 | Clean |
| Tripp County Water User District | Winner, SD | 4,860 | 147 | Clean |
| Wamego, City Of | Wamego, KS | 4,860 | 129 | Detected |
| Sun Lakes State Park | Coulee City, WA | 4,858 | 17 | - |
| Westlake City of Water System | Westlake, LA | 4,858 | 57 | Clean |
| Dawson | Dawson, GA | 4,857 | 70 | Clean |
| Boldo Water & Fire Prot. Authority | Jasper, AL | 4,857 | 3 | Clean |
| Del Paso Manor County Water Di | Sacramento, CA | 4,854 | 5 | Clean |
| Southampton Water Dept | Southampton, MA | 4,853 | 23 | Clean |
| Veolia of Owego | Owego, NY | 4,850 | 12 | Clean |
| City of Missouri City | Missouri City, TX | 4,847 | 7 | Detected |
| Las Flores Water Co. | Altadena, CA | 4,847 | 14 | Clean |
| Wickson Creek Sud Grimes County | Bryan, TX | 4,843 | 36 | Detected |
| Rayville Water System | Rayville, LA | 4,842 | 409 | Detected |
| Blue Lake Springs Mut Wtr | Arnold, CA | 4,841 | 6 | Clean |
| Harris County MUD 221 | Houston, TX | 4,839 | 0 | Clean |
| Fourth Ward Water Works | Albany, LA | 4,839 | 25 | - |
| Clintwood, Town Of | Clintwood, VA | 4,836 | 30 | Clean |
| North Hunt Sud | Commerce, TX | 4,836 | 101 | Clean |
| Louetta North PUD | Houston, TX | 4,836 | 5 | Detected |
| Reedsport, City Of | Reedsport, OR | 4,836 | 232 | Clean |
| Riverbend Utilities Inc | Gulfport, MS | 4,834 | 296 | Clean |
| MI Ranchito | Austin, TX | 4,833 | 0 | - |