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 |
|---|---|---|---|---|
| Glenpool Water | Glenpool, OK | 12,500 | 50 | Clean |
| Hampton Bays Water District | Hampton Bays, NY | 12,500 | 106 | Detected |
| Clinton W Dept | Clinton, NJ | 12,500 | 995 | Detected |
| Troy PWS | Troy, MO | 12,500 | 60 | Clean |
| Markham | Markham, IL | 12,500 | 148 | Detected |
| Garden City Water and Sewer System | Garden City, ID | 12,500 | 245 | Detected |
| Port St. Joe, City Of | Port St Joe, FL | 12,493 | 80 | Clean |
| Eubank Water System | Eubank, KY | 12,492 | 80 | Clean |
| Johnson County PWSD 2 | Holden, MO | 12,490 | 27 | Clean |
| Webb City PWS | Webb City, MO | 12,488 | 48 | Clean |
| Bainbridge Island City Of | Bainbridge Island, WA | 12,486 | 9 | Clean |
| Riverview | Riverview, MI | 12,486 | 8 | Clean |
| Thomaston | Thomaston, GA | 12,482 | 58 | Clean |
| Hohenwald Water System | Hohenwald, TN | 12,475 | 210 | Clean |
| Winnetka | Deerfield, IL | 12,475 | 31 | Clean |
| Aberdeen, Town Of | Aberdeen, NC | 12,473 | 102 | Detected |
| Gloucester City W Dept | Gloucester, NJ | 12,460 | 231 | Clean |
| East Casey Co Water District | Liberty, KY | 12,460 | 178 | Clean |
| Sussex Shores Water Company | Bethany Beach, DE | 12,450 | 9 | Clean |
| Dunn, City Of | Dunn, NC | 12,442 | 18 | Detected |
| City of Cleveland | Cleveland, TX | 12,438 | 29 | Clean |
| Gettysburg Muni Auth | Gettysburg, PA | 12,425 | 745 | Detected |
| Borger Municipal Water System | Borger, TX | 12,419 | 21 | Clean |
| Cal-Water Service Co.-Marysville | San Jose, CA | 12,419 | 2 | Clean |
| Ecwa Evans | Buffalo, NY | 12,417 | 14 | - |
| Acsa Crozet | Charlottesville, VA | 12,415 | 11 | Clean |
| Big Lake | Big Lake, MN | 12,413 | 31 | Detected |
| City of Sweetwater | Sweetwater, TX | 12,401 | 23 | Detected |
| Wilmington City PWS | Wilmington, OH | 12,401 | 137 | Detected |
| Fort Atkinson Waterworks | Fort Atkinson, WI | 12,390 | 30 | Clean |
| Mayfield Electric & Water | Mayfield, KY | 12,379 | 205 | Clean |
| Pemberton Twp Dept Main | Pemberton, NJ | 12,378 | 505 | Clean |
| City of Sugar Land - Greatwood | Sugar Land, TX | 12,368 | 0 | Clean |
| Rainbow City, Wwb of the Town Of | Rainbow City, AL | 12,363 | 11 | Clean |
| Warrenville | Warrenville, IL | 12,350 | 201 | Clean |
| Sycuan | El Cajon, 09 | 12,350 | 103 | Clean |
| Union PWS | Union, MO | 12,348 | 112 | Clean |
| Harris County MUD 1 | Houston, TX | 12,342 | 1 | Clean |
| Southside Water Works | Southside, AL | 12,327 | 27 | Detected |
| Gadsden Co Regional W/S | Quincy, FL | 12,322 | 46 | Clean |
| Perquimans County Water System | Hertford, NC | 12,320 | 42 | Clean |
| Loganville | Loganville, GA | 12,319 | 13 | Clean |
| Dallastown Yoe Water Auth | Dallastown, PA | 12,300 | 116 | Clean |
| Effingham County Surface Water System | Springfield, GA | 12,293 | 15 | Detected |
| City of El Campo | El Campo, TX | 12,290 | 5 | Clean |
| City of Sopchoppy | Sopchoppy, FL | 12,290 | 29 | Detected |
| Sandpoint Public Works Dept | Sandpoint, ID | 12,284 | 74 | Clean |
| Beauregard Water Authority | Opelika, AL | 12,270 | 22 | Clean |
| Grafton Waterworks | Grafton, WI | 12,269 | 237 | Clean |
| Platteville Waterworks | Platteville, WI | 12,268 | 111 | Clean |