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 |
|---|---|---|---|---|
| Terrytown, City Of | Terrytown, NE | 1,143 | 72 | - |
| Kuttawa Water Department | Kuttawa, KY | 1,143 | 173 | - |
| Gorham | Gorham, IL | 1,143 | 39 | - |
| Malta | Malta, IL | 1,143 | 44 | - |
| Dinwiddie Middle School | Dinwiddie, VA | 1,142 | 67 | - |
| Carson-Huerfano NTUA | Ft Defiance, NN | 1,142 | 87 | - |
| Ashford Water District | Ashford, WA | 1,141 | 31 | - |
| City of Daisetta | Daisetta, TX | 1,141 | 63 | - |
| Rural WSC | Jasper, TX | 1,141 | 118 | - |
| Highfield | Smithsburg, MD | 1,141 | 11 | - |
| Pine Grove Comm Serv Dist | Pine Grove, CA | 1,141 | 20 | - |
| Waterville Town Of | Waterville, WA | 1,140 | 74 | - |
| Vacation Village | Des Peres, TX | 1,140 | 51 | - |
| Twin Valley Middle School | Elverson, PA | 1,140 | 164 | - |
| Tomnolen Water Assn, Inc | Eupora, MS | 1,140 | 361 | - |
| Kraft Heinz Food Company | Springfield, MO | 1,140 | 9 | - |
| Henry County PWSD 4 | Urich, MO | 1,140 | 58 | - |
| Tougas Farm (Ball Hill Realty) | Northborough, MA | 1,140 | 9 | - |
| Leland Water System Inc | Sicily Island, LA | 1,140 | 66 | - |
| Prospect Water District | Harrisburg, IL | 1,140 | 21 | - |
| Adot Airport Grand Canyon | Phoenix, AZ | 1,140 | 317 | - |
| Talahi Island Community | Savannah, GA | 1,139 | 27 | - |
| Cal Am Water Company - Chualar | Pacific Grove, CA | 1,139 | 4 | - |
| Randolph Center Water System | Randolph Center, VT | 1,138 | 70 | - |
| Beechwood WSC | Hemphill, TX | 1,138 | 247 | - |
| Stanley City Of | Stanley, ND | 1,138 | 30 | - |
| Little Lake Weir Subdivision | Des Peres, FL | 1,138 | 60 | - |
| Clayton WSC Plant 2 | Clayton, TX | 1,137 | 152 | - |
| Blue Water Shores | Austin, TX | 1,137 | 25 | - |
| Consejo | Guayanilla, PR | 1,137 | 307 | - |
| Timberlane Regional Hs | Plaistow, NH | 1,137 | 50 | - |
| Forkland Water System | Forkland, AL | 1,137 | 132 | - |
| City of Florence | Florence, TX | 1,136 | 98 | - |
| Cochranton Boro Water Dept | Cochranton, PA | 1,136 | 150 | - |
| Maud | Maud, OK | 1,136 | 116 | - |
| Oriental Water System | Oriental, NC | 1,136 | 60 | - |
| Fowler, Village Of | Fowler, MI | 1,136 | 36 | Clean |
| Lumpkin | Lumpkin, GA | 1,136 | 102 | - |
| New Hope Water Association | Junction City, AR | 1,136 | 22 | - |
| Walker Creek | Marion, VA | 1,135 | 72 | - |
| Powder Mountain Wsid | Clearfield, UT | 1,135 | 95 | - |
| Castile Village | Castile, NY | 1,135 | 44 | - |
| Dakota Rural Water District South | Finley, ND | 1,135 | 8 | - |
| Hungry Horse Co Water and Sewer District | Hungry Horse, MT | 1,135 | 108 | - |
| Miner PWS | Miner, MO | 1,135 | 37 | - |
| Pinckney Schools - High School | Pinckney, MI | 1,135 | 27 | - |
| Mounds | Mounds, IL | 1,135 | 133 | - |
| Locke-Fern Dollard RD Ww Pfb | Mountainburg, AR | 1,135 | 6 | - |
| City of Log Cabin | Log Cabin, TX | 1,134 | 55 | - |
| Sardis Water System | Sardis, TN | 1,134 | 29 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).