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 |
|---|---|---|---|---|
| Sunapee Water Works | Sunapee, NH | 1,680 | 132 | - |
| Oswego, City Of | Oswego, KS | 1,680 | 272 | - |
| Argos Municipal Water Plant | Argos, IN | 1,680 | 91 | - |
| Vail School District - Elementary School | Vail, AZ | 1,680 | 77 | - |
| Ohatchee Water System | Ohatchee, AL | 1,680 | 11 | - |
| Mason Water Dept | Mason, WV | 1,679 | 493 | - |
| Galesville Waterworks | Galesville, WI | 1,679 | 38 | - |
| Oakfield Village | Oakfield, NY | 1,679 | 15 | - |
| NJ State Prison Bayside | Leesburg, NJ | 1,679 | 190 | Clean |
| Port Byron | Port Byron, IL | 1,678 | 44 | - |
| Remsen Municipal Utilities | Remsen, IA | 1,678 | 40 | - |
| Morenci Water Elec Co Clifton | Morenci, AZ | 1,678 | 189 | - |
| Country Terrace Subdivision | Highlands, TX | 1,677 | 123 | - |
| Afton Grove WSC | Jacksonville, TX | 1,677 | 64 | - |
| Wellington City | Wellington, UT | 1,676 | 165 | - |
| Pleasantville Water Works | Pleasantville, IA | 1,676 | 15 | - |
| Haywood County U.d. | Brownsville, TN | 1,675 | 28 | - |
| Saxton Muni Water Auth | Saxton, PA | 1,675 | 526 | - |
| Adair Co RWD #2 | Stilwell, OK | 1,675 | 35 | - |
| Southeast Wud (Central-Lisbon) | Lisbon, ND | 1,675 | 7 | - |
| Lily Rose W/a #1 | Prentiss, MS | 1,675 | 299 | - |
| Walker County Sud C | Huntsville, TX | 1,674 | 89 | - |
| Bay Meadows Estates | Savannah, GA | 1,674 | 70 | Clean |
| Eldridge Water System | Eldridge, AL | 1,674 | 93 | - |
| Republic City Of | Republic, WA | 1,673 | 35 | - |
| City of Danbury | Danbury, TX | 1,673 | 187 | - |
| Worthington Municipal Water Works | Worthington, KY | 1,673 | 62 | - |
| Town of Lakeside | Lakeside, TX | 1,671 | 10 | - |
| North West Kemper W/a #4 | Preston, MS | 1,671 | 265 | - |
| Kettle Moraine High School & Wales Elem School | Wales, WI | 1,670 | 14 | - |
| Shorewood Hills Waterworks | Madison, WI | 1,670 | 34 | - |
| Chesterfield Town of (1310002) | Chesterfield, SC | 1,670 | 29 | - |
| Langston PWA | Langston, OK | 1,670 | 515 | - |
| Sheridan Correctional Center | Sheridan, IL | 1,670 | 124 | - |
| Tohatchi-Mexican Springs-Twin Lakes NTUA | Ft Defiance, NN | 1,669 | 76 | - |
| Willow Point MUD | Houston, TX | 1,668 | 0 | - |
| Copano Cove Subdivision | Des Peres, TX | 1,668 | 16 | - |
| Houlka-Houston W/A | Houlka, MS | 1,668 | 574 | - |
| Homer | Homer, MI | 1,668 | 29 | - |
| Forest Highlands Water Company | Flagstaff, AZ | 1,668 | 83 | - |
| Malvern Water Department | Malvern, AL | 1,668 | 96 | - |
| Domestic Water Company Royal Forest Subd | Conroe, TX | 1,667 | 13 | - |
| Avon | Avon, MN | 1,667 | 4 | - |
| Arbys Restaurant & Convenient Store 6375 | Plymouth, IN | 1,667 | 61 | - |
| Rainbow Forest | Rockville, VA | 1,665 | 3 | - |
| Sanderson Farms Tyler Processing | Laurel, TX | 1,665 | 4 | - |
| Pontiac Correctional Center | Pontiac, IL | 1,665 | 37 | - |
| Grandview Plaza, City Of | Junction City, KS | 1,663 | 29 | - |
| Lakeport Water Association | Moore Haven, FL | 1,663 | 60 | - |
| Richwoods Water Association | Mountain View, AR | 1,663 | 20 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).