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 |
|---|---|---|---|---|
| Horsepen Bayou MUD | Houston, TX | 6,597 | 0 | Detected |
| Interstate MUD | Houston, TX | 6,591 | 4 | Detected |
| Weaver, City 0F | Weaver, AL | 6,591 | 48 | Detected |
| City of Ville Platte Water System | Ville Platte, LA | 6,590 | 91 | Clean |
| Town of Caledonia | Caledonia, MS | 6,589 | 513 | Clean |
| Harris County MUD 354 | Houston, TX | 6,588 | 23 | Clean |
| Tcmsd-Wilkshire Hills PWS | Bolivar, OH | 6,587 | 86 | Clean |
| Mulvane, City Of | Mulvane, KS | 6,587 | 41 | Detected |
| Valley City City Of | Valley City, ND | 6,585 | 27 | Clean |
| Mahomet | Mahomet, IL | 6,580 | 22 | Clean |
| Pratt, City Of | Pratt, KS | 6,573 | 41 | Detected |
| Millen | Millen, GA | 6,569 | 314 | Clean |
| Double Springs U.d. | Cookeville, TN | 6,567 | 16 | Clean |
| Buena Vista, City Of | Buena Vista, VA | 6,566 | 35 | Clean |
| Winthrop Harbor | Winthrop Harbor, IL | 6,565 | 102 | Clean |
| Montgomery County MUD 15 | Houston, TX | 6,564 | 13 | Detected |
| Delano Municipal Utilities | Delano, MN | 6,564 | 21 | Clean |
| Elburn | Elburn, IL | 6,559 | 276 | Clean |
| Harris County Wcid 84 | Houston, TX | 6,552 | 8 | Detected |
| Schuyler, City Of | Schuyler, NE | 6,547 | 85 | Clean |
| Chatfield WSC | Powell, TX | 6,546 | 22 | Detected |
| Mission Bend MUD 1 | Houston, TX | 6,546 | 11 | Clean |
| Jamestown, Town Of | Jamestown, NC | 6,543 | 66 | Detected |
| South Lebanon City PWS | South Lebanon, OH | 6,541 | 100 | Clean |
| Ballston Spa Village | Ballston Spa, NY | 6,541 | 183 | Clean |
| Maysville Regional Water | White Cottage, OH | 6,540 | 406 | Detected |
| Geneseo | Geneseo, IL | 6,539 | 35 | Detected |
| Dublin Town Of | Dublin, VA | 6,538 | 4 | Clean |
| Naval Support Activity, Crane | Crane, IN | 6,538 | 94 | Clean |
| Seminole - Brighton Reservation | Hollywood, 04 | 6,538 | 40 | - |
| Western Lewis Rectorville Water District | Maysville, KY | 6,534 | 128 | Detected |
| Texas State Technical College - Waco | Waco, TX | 6,533 | 49 | Detected |
| Aqua PA Fawn Lake Forest | Honesdale, PA | 6,533 | 181 | Detected |
| Polk City Water Supply | Polk City, IA | 6,533 | 17 | Clean |
| Orange Water Dept | Orange, MA | 6,526 | 22 | Detected |
| Huntingburg Municipal Water | Huntingburg, IN | 6,526 | 204 | Clean |
| Kyle Water System | Pine Ridge, 08 | 6,526 | 35 | Clean |
| Steamboat Ski Corp Thunderhead | Steamboat Springs, CO | 6,517 | 52 | - |
| East Montana Water System | El Paso, TX | 6,513 | 20 | Detected |
| South Kona | Hilo, HI | 6,512 | 12 | Clean |
| Ira Township | Ira, MI | 6,510 | 5 | Clean |
| Planet Hollywood Hotel and Casino | Las Vegas, NV | 6,509 | 30 | Clean |
| Enoch City Water System | Cedar City, UT | 6,500 | 547 | Clean |
| MD Anderson Cancer Center Alkek | Houston, TX | 6,500 | 12 | Detected |
| Outlet Shops at Gettysburg | Gettysburg, PA | 6,500 | 254 | Detected |
| Derry Boro Muni Auth | Derry, PA | 6,500 | 330 | Detected |
| Monaca Boro Water Dept | Monaca, PA | 6,500 | 392 | Detected |
| Portage Boro Muni Auth | Portage, PA | 6,500 | 890 | Clean |
| Tyrone Boro Water Auth | Tyrone, PA | 6,500 | 116 | Clean |
| Waterville City | Waterville, OH | 6,500 | 11 | Detected |