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 |
|---|---|---|---|---|
| Omak City Of | Omak, WA | 4,940 | 13 | Detected |
| Chisholm | Chisholm, MN | 4,940 | 3 | Clean |
| Awa, Tanner | Sutter Creek, CA | 4,940 | 16 | Clean |
| Barnes Rural Water District | Valley City, ND | 4,938 | 0 | Clean |
| Lindstrom | Lindstrom, MN | 4,938 | 42 | Clean |
| Cotuit Fire District Water Department | Cotuit, MA | 4,938 | 33 | Clean |
| Vinton Municipal Water Dept | Vinton, IA | 4,938 | 28 | Clean |
| City of Willow Park | Willow Park, TX | 4,936 | 56 | Clean |
| Paris Waterworks | Paris, AR | 4,935 | 71 | Clean |
| Creve Coeur | Creve Coeur, IL | 4,934 | 55 | Clean |
| North Kohala | Hilo, HI | 4,933 | 5 | Clean |
| Fort Bend County MUD 121 | Houston, TX | 4,932 | 21 | Clean |
| Franklin County Water Service Authority | Russellville, AL | 4,932 | 2 | Detected |
| Dayton | Dayton, MN | 4,930 | 6 | - |
| Sulphur | Sulphur, OK | 4,929 | 27 | Clean |
| Tarentum Boro Water Dept | Tarentum, PA | 4,927 | 152 | Clean |
| Pinelands Water Co | Southampton, NJ | 4,926 | 40 | Clean |
| Pinehill Waterworks District | Shreveport, LA | 4,926 | 104 | Detected |
| Hoosick Falls (V) PWS | Hoosick Falls, NY | 4,925 | 12 | Clean |
| Shenandoah Water Dept | Shenandoah, IA | 4,925 | 232 | Clean |
| Olympia Fields | Olympia Fields, IL | 4,922 | 47 | Clean |
| Heceta Water Peoples Utility District | Florence, OR | 4,921 | 72 | Clean |
| Greenwich Twp W Dept | Gibbstown, NJ | 4,921 | 633 | Clean |
| Central Indiana Co Water Auth | Homer City, PA | 4,920 | 101 | Clean |
| Greenville Water Utility | Greenville, IN | 4,920 | 20 | Detected |
| Clarkdale Municipal Water System | Clarkdale, AZ | 4,920 | 114 | Clean |
| Dilworth | Dilworth, MN | 4,918 | 62 | Detected |
| Waialee-Sunset Beach | Honolulu, HI | 4,916 | 0 | Clean |
| Green Valley Glenwood Psd Glenwood | Bluefield, WV | 4,914 | 112 | Clean |
| Clay County PWSD 6 | Kearney, MO | 4,912 | 11 | Detected |
| Anna | Anna, IL | 4,910 | 72 | Clean |
| Sylvania | Sylvania, GA | 4,910 | 39 | Clean |
| Stallion Springs Csd | Tehachapi, CA | 4,910 | 31 | Clean |
| Southwest Oakland Township | Waterford, MI | 4,909 | 0 | Clean |
| Houston County Water Authority | Dothan, AL | 4,902 | 21 | Clean |
| City of Smithville | Smithville, TX | 4,901 | 128 | Clean |
| City of Carthage | Carthage, MS | 4,901 | 801 | Clean |
| Union Grove Waterworks | Union Grove, WI | 4,900 | 71 | Clean |
| Elk Ridge Town | Orem, UT | 4,900 | 130 | Clean |
| Perry City | Perry, UT | 4,900 | 38 | Clean |
| Upmc Magee Womens Hospital | Pittsburgh, PA | 4,900 | 37 | Detected |
| Clinton Correctional Facility | Dannemora, NY | 4,900 | 163 | Clean |
| Marion County PWSD 1 | Philadelphia, MO | 4,900 | 11 | Detected |
| Whiting Water Department | Whiting, IN | 4,900 | 65 | Clean |
| Round Lake Park | Round Lake Park, IL | 4,900 | 30 | Clean |
| Gravette Waterworks | Gravette, AR | 4,900 | 17 | Clean |
| Barrow Utilities & Elec. Coop., Inc. (Bu | Barrow, AK | 4,900 | 119 | Detected |
| Ramey WSC | Mineola, TX | 4,899 | 10 | Clean |
| Montgomery County MUD 89 | Houston, TX | 4,899 | 5 | Clean |
| China Grove, Town Of | Salisbury, NC | 4,895 | 378 | Detected |