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 |
|---|---|---|---|---|
| Sergeant Bluff Water Supply | Sergeant Bluff, IA | 5,015 | 22 | Clean |
| North Fond Du Lac Waterworks | North Fond Du Lac, WI | 5,014 | 86 | Clean |
| Town of Camp Verde Utilities | Camp Verde, AZ | 5,013 | 89 | Clean |
| City of Aledo | Aledo, TX | 5,010 | 230 | Detected |
| Portland Water Department | Portland, CT | 5,010 | 65 | Detected |
| Tazewell, Town Of | Tazewell, VA | 5,007 | 73 | Clean |
| Harris County MUD 495 | Houston, TX | 5,007 | 6 | Clean |
| Winter Park Resort Sunspot | Winter Park, CO | 5,006 | 13 | - |
| Elko New Market | Elko-New Market, MN | 5,003 | 65 | Clean |
| City of Mathis | Mathis, TX | 5,001 | 213 | Detected |
| Winter Park Resort Snoasis | Winter Park, CO | 5,001 | 21 | - |
| Winter Park Resort Lunch Rock | Winter Park, CO | 5,001 | 17 | - |
| Spokane Business & Industrial Park | Spokane, WA | 5,000 | 25 | Clean |
| Guilford Welcome Center | Montpelier, VT | 5,000 | 15 | - |
| St Johnsbury Water System | St Johnsbury, VT | 5,000 | 207 | Clean |
| City of Meadows Place | Meadows Place, TX | 5,000 | 25 | Clean |
| Coleman County Sud | Coleman, TX | 5,000 | 253 | Detected |
| City of Morgans Point Resort | Morgans Point Resort, TX | 5,000 | 83 | Detected |
| Mem Reg Mega-Site Auth WS | Nashville, TN | 5,000 | 0 | - |
| I-40 Rest Area Madison | Memphis, TN | 5,000 | 26 | - |
| Y-12 Nnsa Production Office | Oak Ridge, TN | 5,000 | 12 | Detected |
| Towanda Municipal Authority | Towanda, PA | 5,000 | 663 | Clean |
| Porum PWA | Porum, OK | 5,000 | 342 | Detected |
| Bethel Woods Center for the Arts | Liberty, NY | 5,000 | 18 | - |
| Carmel WD 2 | Mahopac, NY | 5,000 | 52 | Clean |
| Harriman Village | Harriman, NY | 5,000 | 141 | Detected |
| Lake Placid V | Lake Placid, NY | 5,000 | 38 | Clean |
| Ely Municipal Water Department | Ely, NV | 5,000 | 358 | Clean |
| Mt Olive Villages Water | Budd Lake, NJ | 5,000 | 167 | Detected |
| Borough of Springlake Heights | Spring Lake Heights, NJ | 5,000 | 268 | Detected |
| Avon by the Sea Water DE | Avon, NJ | 5,000 | 54 | Detected |
| Clementon Water Department | Newton, NJ | 5,000 | 391 | Clean |
| Newport Water Works | Newport, NH | 5,000 | 219 | Clean |
| Sidney City Of | Sidney, MT | 5,000 | 6 | Clean |
| Super Walmart | Lenexa, MI | 5,000 | 36 | - |
| Kalamazoo Lake Sewer & Water Authority | Saugatuck, MI | 5,000 | 102 | Clean |
| Davison, City Of | Davison, MI | 5,000 | 4 | Clean |
| Town of Leonardtown | Leonardtown, MD | 5,000 | 38 | - |
| Town of Chesapeake Beach | Chesapeake Beach, MD | 5,000 | 7 | Clean |
| Midland-Lonaconing | Lonaconing, MD | 5,000 | 85 | Clean |
| Mammoth Cave/Central System | Cave City, KY | 5,000 | 57 | Clean |
| Mitchell Water Department | Mitchell, IN | 5,000 | 272 | Clean |
| Lawrenceburg Municipal Utilities | Lawrenceburg, IN | 5,000 | 54 | Clean |
| U of I Chicago Medical Center | Chicago, IL | 5,000 | 190 | Clean |
| Niabi Zoo | Coal Valley, IL | 5,000 | 25 | - |
| Glen of Robin Hood | Savannah, GA | 5,000 | 21 | Clean |
| Wauchula City Water Department | Wauchula, FL | 5,000 | 27 | Clean |
| Camden Wyoming Sewer and Water Authority | Camden, DE | 5,000 | 14 | Clean |
| Pleasant Valley Mutual Water Co | Camarillo, CA | 5,000 | 9 | Detected |
| Famoso Raceway, Smokers Inc. | Bakersfield, CA | 5,000 | 16 | - |