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 |
|---|---|---|---|---|
| Harrisburg, Town Of | Harrisburg, NC | 20,549 | 73 | Detected |
| Brigham City Water System | West Haven, UT | 20,540 | 130 | Detected |
| Milledgeville | Milledgeville, GA | 20,540 | 36 | Clean |
| Callaway, City of Water System | Callaway, FL | 20,520 | 16 | Clean |
| Dolton | Dolton, IL | 20,510 | 83 | Clean |
| Westbury WD | Westbury, NY | 20,500 | 34 | Detected |
| Lyndhurst Water Department | Lyndhurst, NJ | 20,500 | 87 | Detected |
| Libertyville | Libertyville, IL | 20,500 | 27 | Detected |
| N.s. Mayport | Jacksonville, FL | 20,500 | 31 | Clean |
| West Kern Water District | Taft, CA | 20,500 | 6 | Clean |
| North Liberty Water Supply | North Liberty, IA | 20,491 | 46 | Clean |
| Tri County Wcd | Montrose, CO | 20,490 | 8 | Clean |
| City of Lake City (Price Creek WTP) | Lake City, FL | 20,488 | 122 | Clean |
| Birmingham | Birmingham, MI | 20,472 | 20 | Detected |
| Braselton | Braselton, GA | 20,469 | 67 | Detected |
| Acton MUD | Granbury, TX | 20,458 | 135 | Clean |
| Marblehead Water Dept. (Mwra) | Marblehead, MA | 20,441 | 13 | Clean |
| Ottawa County Regional Water District | Port Clinton, OH | 20,428 | 10 | Detected |
| Arlington City Of | Arlington, WA | 20,418 | 1 | Detected |
| Tri-County Water Distbr Dist | Russelville, AR | 20,394 | 67 | Clean |
| City of Opelousas Water System | Opelousas, LA | 20,388 | 140 | Clean |
| College Park | College Park, GA | 20,382 | 18 | - |
| Elmwood Park Water Dept | Elmwood Park Boro, NJ | 20,374 | 141 | Detected |
| City of Pineville Water System | Pineville, LA | 20,358 | 69 | Clean |
| Georgia Southern University | Savannah, GA | 20,357 | 11 | Clean |
| Piqua City PWS | Piqua, OH | 20,354 | 41 | Detected |
| Newburyport Water Department | Newburyport, MA | 20,335 | 74 | Detected |
| City of Cibolo | Cibolo, TX | 20,331 | 44 | Detected |
| Bethany | Bethany, OK | 20,307 | 137 | Detected |
| Sartell | Sartell, MN | 20,300 | 17 | Detected |
| Post Falls City Of | Post Falls, ID | 20,285 | 658 | Clean |
| Doyon Utilities Jber - Richardson | Fairbanks, AK | 20,284 | 382 | Clean |
| Norwalk - City, Water Dept. | Norwalk, CA | 20,283 | 2 | Detected |
| Left Hand WD | Niwot, CO | 20,280 | 213 | Clean |
| Dhs Boulevard Border Patrol | San Diego, CA | 20,270 | 3 | - |
| Lomita-City, Water Dept. | Lomita, CA | 20,256 | 4 | Detected |
| Halifax Co--Halifax | Halifax, NC | 20,250 | 190 | Detected |
| Talladega Water and Sewer Board, City Of | Talladega, AL | 20,250 | 90 | Detected |
| Mebane, City Of | Mebane, NC | 20,212 | 66 | Detected |
| Russellville Whitesburg U.d. | Russellville, TN | 20,197 | 3 | Clean |
| Lee County Utilities Authority | Leesburg, GA | 20,194 | 90 | Clean |
| Riverside Highland Water Company | Grand Terrace, CA | 20,188 | 6 | Detected |
| City of Seagoville | Seagoville, TX | 20,156 | 93 | Detected |
| Washington Water Authority Wwa | Farmington, AR | 20,140 | 82 | Clean |
| Chandler Water Works Department | Chandler, IN | 20,120 | 248 | Clean |
| City of Universal City | Universal City, TX | 20,119 | 5 | Clean |
| King County Water District No 90 | Renton, WA | 20,100 | 262 | Clean |
| Cortland (C) | Cortland, NY | 20,095 | 23 | Clean |
| Warren Water District | Indianola, IA | 20,095 | 34 | Clean |
| Ft Wainwright - Main Post | Fairbanks, AK | 20,076 | 459 | Detected |