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 |
|---|---|---|---|---|
| Magnolia Waterworks | Magnolia, AR | 11,657 | 194 | Clean |
| Monmouth, City Of | Monmouth, OR | 11,651 | 33 | Clean |
| Crestline Village Cwd - Division 10 | Crestline, CA | 11,650 | 10 | Detected |
| Ak-Chin Village | Maricopa, 09 | 11,646 | 57 | Detected |
| Fontainebleau las Vegas | Las Vegas, NV | 11,644 | 0 | - |
| Flowers Plantation | Cary, NC | 11,643 | 45 | Detected |
| East Grand Rapids | East Grand Rapids, MI | 11,637 | 4 | Clean |
| Borden Tri-County Region | Borden, IN | 11,637 | 400 | Clean |
| North Lawrence Water Authority | Bedford, IN | 11,625 | 65 | Clean |
| Henry County Water Authority | Abbeville, AL | 11,625 | 578 | Clean |
| San Leon MUD | San Leon, TX | 11,622 | 63 | Detected |
| Gates County Water System | Gatesville, NC | 11,621 | 58 | Clean |
| Fort Gratiot Township | Fort Gratiot, MI | 11,616 | 22 | Clean |
| Harrison City PWS | Harrison, OH | 11,600 | 70 | Clean |
| Robert Moses State Park | Babylon, NY | 11,600 | 126 | - |
| Farmington, City Of | Farmington, MI | 11,597 | 6 | Clean |
| Fort Bend County MUD 142 | Houston, TX | 11,595 | 2 | Detected |
| Avon Water Co | Clinton, CT | 11,590 | 476 | Detected |
| Greenfield County WD | Bakersfield, CA | 11,590 | 114 | Clean |
| The Cape Master System | Cary, NC | 11,587 | 180 | Detected |
| Wallington Water Dept | Wallington, NJ | 11,583 | 75 | Detected |
| Rolling Oaks Subdivision | St. Louis, FL | 11,572 | 116 | Clean |
| Lantana Water Treatment Plant | Lantana, FL | 11,558 | 49 | Detected |
| Grosse Pointe Park | Grosse Pointe Park, MI | 11,555 | 78 | Clean |
| Rayford Road MUD | Houston, TX | 11,550 | 1 | Clean |
| City of Port Lavaca | Port Lavaca, TX | 11,545 | 213 | Detected |
| Ccwd - Ebbetts Pass | San Andreas, CA | 11,545 | 21 | Clean |
| Lower Rio Grande Pwwa South Valley | Anthony, NM | 11,542 | 69 | Detected |
| James Fork Regional Water District | Greenwood, AR | 11,538 | 84 | Clean |
| Town of la Plata | La Plata, MD | 11,535 | 33 | Clean |
| Owens Crossroads Water Authority | Owens Cross Roads, AL | 11,532 | 38 | Clean |
| Uxbridge Dpw, Water Division | Uxbridge, MA | 11,525 | 55 | Detected |
| Northtown MUD | Austin, TX | 11,520 | 10 | Detected |
| Waipio Heights | Honolulu, HI | 11,516 | 0 | Clean |
| Harris County MUD 81 | Houston, TX | 11,514 | 20 | Clean |
| Los Angeles Cwwd 40, R 24,27,33-Pearblsm | Alhambra, CA | 11,509 | 2 | Clean |
| Wise County Regional Water System | Wise, VA | 11,500 | 45 | Clean |
| Usmc Lejeune--New River Air St | Camp Lejeune, NC | 11,500 | 22 | Clean |
| Butler County PWSD 1 | Poplar Bluff, MO | 11,500 | 13 | Clean |
| Kearney PWS | Kearney, MO | 11,500 | 11 | Detected |
| Brooksville City Of | Brooksville, FL | 11,500 | 41 | Clean |
| Wellington Town Of | Wellington, CO | 11,500 | 113 | Clean |
| Hope Water Light Comm | Hope, AR | 11,500 | 56 | Clean |
| Norwell Water Department | Norwell, MA | 11,495 | 27 | Detected |
| Bell Arthur Water Corp | Bell Arthur, NC | 11,483 | 145 | Detected |
| City of Granbury | TX | 11,468 | 248 | Clean |
| Findlay Twp Municipal Auth | Clinton, PA | 11,460 | 128 | Clean |
| Centerville | Centerville, GA | 11,459 | 20 | Detected |
| Hoquiam Water Department | Hoquiam, WA | 11,456 | 10 | Clean |
| Guymon | Guymon, OK | 11,442 | 71 | Clean |