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 |
|---|---|---|---|---|
| Castle Rock Municipal Water | Castle Rock, WA | 4,367 | 126 | Clean |
| Bosque Farms Water Supply System | Peralta, NM | 4,367 | 92 | Detected |
| West Vernon Parish Waterworks District | Anacoco, LA | 4,365 | 22 | Clean |
| Jemison Water Works | Jemison, AL | 4,365 | 51 | Clean |
| Wagoner Co. RWD #9 | Wagoner, OK | 4,363 | 199 | Clean |
| Suburban Water Systems - Sativa | Covina, CA | 4,363 | 34 | Clean |
| Viroqua Waterworks | Viroqua, WI | 4,362 | 31 | Clean |
| Trolley Run Station Development(0220016) | Gloverville, SC | 4,361 | 0 | - |
| Mt. Konocti Mutual Water Company | Kelseyville, CA | 4,360 | 14 | Clean |
| City of Caldwell | Caldwell, TX | 4,358 | 22 | Clean |
| City of Redwater | Redwater, TX | 4,356 | 110 | Clean |
| Town of Sunset Water System | Sunset, LA | 4,356 | 90 | Clean |
| East Texas A&m University | Commerce, TX | 4,350 | 105 | Clean |
| Guin Water & Sewer Board | Guin, AL | 4,350 | 79 | Clean |
| Flatwoods Canoe Run Psd | Sutton, WV | 4,344 | 108 | Clean |
| Tanglewood on Texoma | Austin, TX | 4,341 | 109 | Detected |
| City of Kaplan Water System | Kaplan, LA | 4,340 | 52 | Clean |
| Slvwd - Felton Water System | Boulder Creek, CA | 4,340 | 19 | Clean |
| Hampton Muni Water Works | Hampton, IA | 4,337 | 16 | Clean |
| City of Pittsburg | Pittsburg, TX | 4,335 | 8 | Clean |
| San Felipe Pueblo | San Felipe Pueblo, 06 | 4,335 | 120 | - |
| Monroe Water Systems | Laings, OH | 4,334 | 60 | Clean |
| Wadena | Wadena, MN | 4,332 | 0 | Clean |
| Sharpsburg Water District | Sharpsburg, KY | 4,332 | 130 | Detected |
| Orchard Avenue Irrigation Dist 6 | Spokane, WA | 4,330 | 24 | Clean |
| Wbr Public Utilities | Port Allen, LA | 4,329 | 11 | Clean |
| West Earl Water Authority | Brownstown, PA | 4,327 | 99 | Detected |
| Norwood, Town Of | Norwood, NC | 4,323 | 156 | Detected |
| North Star Zoot Water | Bozeman, MT | 4,323 | 16 | - |
| Oneida #1 OR Site #1 | Oneida, 05 | 4,322 | 104 | Clean |
| Aqua PA Jenks Twp WTP | Sharon, PA | 4,320 | 16 | Clean |
| Broken Bow PWA | Broken Bow, OK | 4,320 | 220 | Clean |
| Lexington Village | Lexington, OH | 4,320 | 162 | Clean |
| Medford Waterworks | Medford, WI | 4,318 | 256 | Detected |
| City of Devine | Devine, TX | 4,318 | 47 | Clean |
| Estill Springs Water Dept | Estill Springs, TN | 4,317 | 183 | Clean |
| Parker, City of Water System | Parker, FL | 4,317 | 34 | Clean |
| Washington Township Water | New Washington, IN | 4,315 | 146 | Clean |
| Goldendale City Of | Goldendale, WA | 4,314 | 52 | Clean |
| Fort Bend County MUD 165 | Houston, TX | 4,314 | 4 | Detected |
| Wilson Co Southeast Water Dist | Wilson, NC | 4,312 | 58 | Clean |
| Sienna MUD 12 | Houston, TX | 4,311 | 1 | - |
| Town of Welsh Water System | Welsh, LA | 4,311 | 29 | Clean |
| Bladen Co Wtr Dist-East Bladen | Elizabethtown, NC | 4,310 | 167 | Detected |
| Kewaskum Waterworks | Kewaskum, WI | 4,309 | 137 | Detected |
| Dunklin County PWSD 1 | Campbell, MO | 4,307 | 57 | Clean |
| Gorgoza Mutual Water Co | Park City, UT | 4,305 | 526 | Clean |
| Cypresswood Utility District | Houston, TX | 4,305 | 7 | Detected |
| Berrendo Cooperative Wua | Roswell, NM | 4,304 | 50 | Clean |
| Parsons Water Department | Parsons, TN | 4,303 | 38 | Detected |