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 |
|---|---|---|---|---|
| Ellsworth Water Department | Surry, ME | 3,910 | 102 | Clean |
| West Wise Sud | Bridgeport, TX | 3,909 | 318 | Detected |
| Westlake MUD 1 | Houston, TX | 3,909 | 3 | Clean |
| Harbour Point S/D | Charlotte, NC | 3,909 | 587 | Detected |
| Augusta Township | Whittaker, MI | 3,907 | 11 | Clean |
| Carolynn Estates | Austin, TX | 3,906 | 84 | Detected |
| Northgate Crossing MUD 1 | Houston, TX | 3,906 | 2 | Clean |
| Asbury Water System | Albertville, AL | 3,906 | 9 | Detected |
| Elkins Waterworks | Elkins, AR | 3,905 | 66 | Clean |
| Cienega | Santurce, PR | 3,904 | 15 | Clean |
| Gholson WSC | Waco, TX | 3,903 | 41 | - |
| North Brookfield Water Department | North Brookfield, MA | 3,903 | 78 | Clean |
| Ardmore Water System | Ardmore, AL | 3,903 | 432 | Detected |
| North Raynham Water District | Raynham, MA | 3,902 | 5 | Detected |
| Beaver Dam Municipal Water & Sewer | Beaver Dam, KY | 3,901 | 126 | Clean |
| Yorkville Utility Dist 1 | Union Grove, WI | 3,900 | 160 | Clean |
| Caddo Co RWD #3 | Carnegie, OK | 3,900 | 34 | Clean |
| Bethel Village PWS | Bethel, OH | 3,900 | 123 | Detected |
| Liberty Village | Liberty, NY | 3,900 | 61 | Detected |
| South Glens Falls Village | South Glens Falls, NY | 3,900 | 388 | Clean |
| Grundy County PWSD 1 | Trenton, MO | 3,900 | 33 | Clean |
| Mancelona Area Water and Sewer Authority | Mancelona, MI | 3,900 | 92 | Clean |
| Pollock Area Water System Inc | Pollock, LA | 3,900 | 5 | Clean |
| Avoyelles Parish Waterworks District 1 | Bordelonville, LA | 3,900 | 11 | Clean |
| Luverne (Ww&sb of the City Of) | Luverne, AL | 3,900 | 16 | Clean |
| Montrose | Montrose, MN | 3,899 | 7 | - |
| Denton County Fwsd 11-B | Houston, TX | 3,897 | 8 | - |
| McKenzie County Wrd | Watford City, ND | 3,895 | 36 | - |
| Metamora | Metamora, IL | 3,895 | 29 | Clean |
| Harris County MUD 173 | Houston, TX | 3,894 | 1 | Detected |
| Carefree Water Company | Carefree, AZ | 3,894 | 52 | Clean |
| Milano WSC | Milano, TX | 3,891 | 0 | Detected |
| Westfield Village and Town | Westfield, NY | 3,890 | 48 | Clean |
| Shorewood | Shorewood, MN | 3,890 | 8 | Detected |
| Perry Park WSD | Larkspur, CO | 3,890 | 153 | Clean |
| South Sheridan Water Assoc | Sheridan, AR | 3,887 | 0 | Clean |
| Austin Waterworks | Austin, AR | 3,886 | 29 | - |
| Sugarloaf Water Treatment Plant | Minneola, FL | 3,885 | 15 | - |
| Newberry WTP | Newberry, FL | 3,885 | 73 | Detected |
| Tesoro Viejo Master MWC, Inc. | San Jose, CA | 3,885 | 0 | - |
| Clifton Forge, Town Of | Clifton Forge, VA | 3,884 | 42 | Clean |
| Portland | Portland, MI | 3,883 | 23 | Clean |
| Hatton Coulee Rest Area | Davenport, WA | 3,882 | 8 | - |
| Allendale Town of (Sc0310001) | Allendale, SC | 3,882 | 59 | Clean |
| Newcomerstown Village PWS | Newcomerstown, OH | 3,882 | 98 | Clean |
| Beat III W/a #1-Sand Hill | Richton, MS | 3,881 | 268 | Clean |
| Crystal Systems | Cypress, TX | 3,879 | 23 | Clean |
| The Consolidated WSC Central System | Crockett, TX | 3,878 | 138 | Detected |
| City of West Columbia | West Columbia, TX | 3,878 | 33 | Clean |
| Big V Water Association | Booneville, MS | 3,878 | 519 | Clean |