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 |
|---|---|---|---|---|
| Oak Harbor Village | Oak Harbor, OH | 4,615 | 22 | Clean |
| Fountainhead MUD | Houston, TX | 4,614 | 30 | Detected |
| Valley View Mutual Water Co. | Baldwin Park, CA | 4,613 | 5 | Clean |
| Saint James | St. James, MN | 4,611 | 6 | Clean |
| Oconto Waterworks | Oconto, WI | 4,610 | 33 | Clean |
| Freeland Boro Muni Water Auth | Freeland, PA | 4,610 | 324 | Detected |
| Windsor Water Utility South | Windsor, WI | 4,607 | 16 | - |
| Jefferson County Wcid 10 | Nederland, TX | 4,605 | 33 | Detected |
| Little Falls City | Little Falls, NY | 4,605 | 32 | Clean |
| Sheridan Waterworks | Sheridan, AR | 4,605 | 19 | - |
| North East Borough Water Dept | North East, PA | 4,601 | 407 | Clean |
| South Hill, Town Of | South Hill, VA | 4,600 | 26 | Clean |
| Duffield_scott Co Psa | Weber City, VA | 4,600 | 106 | Clean |
| US Department of Energy Pantex Plant | Amarillo, TX | 4,600 | 11 | Clean |
| Millersburg Water Auth | Millersburg, PA | 4,600 | 221 | Detected |
| Upper Hanover Water Authority | East Greenville, PA | 4,600 | 1,170 | Detected |
| Marlow Municipal Authority | Marlow, OK | 4,600 | 31 | Clean |
| Greenfield Village PWS | Greenfield, OH | 4,600 | 39 | Clean |
| City of Ellisville | Ellisville, MS | 4,600 | 1,106 | Clean |
| Cedar Lake Water Works | Cedar Lake, IN | 4,600 | 465 | Clean |
| Monte Vista City Of | Monte Vista, CO | 4,600 | 35 | Clean |
| Coachella Vwd: I.D. No. 8 | Palm Desert, CA | 4,600 | 1 | Clean |
| Hardin Water Association | Pine Bluff, AR | 4,600 | 7 | Clean |
| Montgomery County MUD 115 | Houston, TX | 4,599 | 0 | - |
| Sheboygan TN Waterworks | Sheboygan, WI | 4,596 | 8 | Detected |
| Flowery Branch | Flowery Branch, GA | 4,594 | 14 | - |
| Long Beach Water Department | Long Beach, WA | 4,592 | 892 | Clean |
| Coamo Urbano | Coamo, PR | 4,592 | 227 | Clean |
| Wayzata | Wayzata, MN | 4,592 | 4 | Detected |
| City of Leland | Leland, MS | 4,591 | 580 | Clean |
| Eagar Town Of | Eagar, AZ | 4,590 | 230 | Detected |
| Butler Water System | Butler, AL | 4,590 | 41 | Clean |
| Smithfield Fresh Meats Corp - Tar Heel | Tarheel, NC | 4,589 | 38 | Detected |
| Mid Valley MD | Basalt, CO | 4,588 | 16 | Clean |
| Raleigh County Mem Airport | Sophia, WV | 4,587 | 38 | Clean |
| Dodgeville Waterworks | Dodgeville, WI | 4,583 | 17 | Clean |
| Flemingsburg Utility System | Flemingsburg, KY | 4,583 | 83 | Clean |
| Flemington Water Department | Flemington, NJ | 4,581 | 846 | Detected |
| Ivanhoe Public Utility Dist | Ivanhoe, CA | 4,580 | 22 | Clean |
| Scotts Hill Water System | Scotts Hill, TN | 4,579 | 14 | Detected |
| North Sewickley Mun Water Auth | Beaver Falls, PA | 4,578 | 112 | Detected |
| Bayou Des Cannes Water System | Basile, LA | 4,578 | 38 | Clean |
| Bon de Croft Utility District | Sparta, TN | 4,577 | 25 | Clean |
| Stone Park | West Chicago, IL | 4,576 | 30 | Clean |
| Fort Bend County MUD 152 | Houston, TX | 4,575 | 0 | - |
| Mount Vernon PWS | Mount Vernon, MO | 4,575 | 24 | Clean |
| Athens | Athens, IL | 4,575 | 120 | Clean |
| Berryville, Town Of | Berryville, VA | 4,574 | 91 | Clean |
| Harlan Municipal Water Works | Harlan, KY | 4,574 | 347 | Clean |
| Auburn | Auburn, IL | 4,574 | 51 | Clean |