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 |
|---|---|---|---|---|
| City of Wiggins | Wiggins, MS | 4,236 | 893 | Clean |
| Caroline Utility System | Ruther Glen, VA | 4,235 | 32 | Detected |
| Town of Plaucheville Water System | Plaucheville, LA | 4,233 | 20 | Clean |
| Taft Water Association | Orlando, FL | 4,232 | 112 | Clean |
| Brazoria County MUD 3 | Houston, TX | 4,230 | 1 | Clean |
| PA Amer Water Co Susquehanna | Wilkes Barre, PA | 4,230 | 5 | Clean |
| Varnado Water Works | Angie, LA | 4,230 | 45 | Clean |
| City of Spring Valley Village | Houston, TX | 4,229 | 19 | Clean |
| Trentwood Irrigation District 3 | Spokane, WA | 4,228 | 45 | Detected |
| Herculaneum PWS | Herculaneum, MO | 4,227 | 13 | Detected |
| Southeast Wud (East) | Mantador, ND | 4,225 | 2 | Clean |
| City of Elmendorf | Elmendorf, TX | 4,221 | 44 | Clean |
| Walston Springs WSC | Palestine, TX | 4,221 | 52 | Clean |
| Adamson RWD #8 | Hartshorne, OK | 4,221 | 232 | Clean |
| Clark County Park Layne PWS | Springfield, OH | 4,221 | 25 | Clean |
| Weathersfield | Altamonte Springs, FL | 4,221 | 38 | Clean |
| Ault Town Of | Ault, CO | 4,220 | 22 | - |
| Desert Hills Water | Cave Creek, AZ | 4,220 | 125 | Clean |
| Beaverfork PWA | Conway, AR | 4,220 | 57 | Clean |
| Vineland | Onamia, 05 | 4,220 | 102 | Clean |
| Butler PWS | Butler, MO | 4,219 | 52 | Detected |
| Nevada Sud | Nevada, TX | 4,218 | 15 | Detected |
| Fleetwood Boro Water System | Fleetwood, PA | 4,218 | 409 | Clean |
| So Woodford Co Water District | Frankfort, KY | 4,218 | 169 | Detected |
| Monson Water and Sewer Dept | Monson, MA | 4,212 | 65 | Clean |
| City of Bellville | Bellville, TX | 4,206 | 67 | Clean |
| Medina | Hamel, MN | 4,205 | 33 | Clean |
| Commerce-City, Water Dept. | San Jose, CA | 4,205 | 1 | Detected |
| Suquamish | Poulsbo, WA | 4,203 | 9 | Clean |
| Thunderbird Utility District 1 | Missouri City, TX | 4,203 | 44 | Clean |
| Wheeler-Frankstown Water Assn | Wheeler, MS | 4,203 | 1,047 | Clean |
| Cold Spring | Cold Spring, MN | 4,201 | 78 | Clean |
| Hawaii Volcanoes Nat.park | Hawaii National Park, HI | 4,201 | 11 | Clean |
| Spring Meadows MUD | Houston, TX | 4,200 | 9 | Detected |
| Luella Sud | Sherman, TX | 4,200 | 1 | Clean |
| Akron Borough | Akron, PA | 4,200 | 59 | Detected |
| PA American Dilliner System | Dilliner, PA | 4,200 | 713 | Clean |
| Ashland Area Water Authority | Ashland, PA | 4,200 | 179 | Detected |
| Saugerties (Village) Water Dis | Saugerties, NY | 4,200 | 168 | Clean |
| Creech Air Force Base | Creech Afb, NV | 4,200 | 197 | Detected |
| River Rock County Water and Sewer Dist | Belgrade, MT | 4,200 | 176 | Clean |
| Bogue-Lusa Water Works District | Angie, LA | 4,200 | 46 | Clean |
| Archibald Water System | Archibald, LA | 4,200 | 50 | Clean |
| Cuii - Indiana Water Service | Crown Point, IN | 4,200 | 34 | Clean |
| Georgetown | Georgetown, IL | 4,200 | 271 | Clean |
| Kapalua | Kapalua, HI | 4,200 | 30 | Clean |
| Sjcu-North Beach Utilities | St. Augustine, FL | 4,200 | 20 | Clean |
| Meiners Oaks Cwd | Ojai, CA | 4,200 | 23 | Clean |
| Rockmart | Rockmart, GA | 4,199 | 19 | Clean |
| Mountain Falls Water System Gbwc | Pahrump, NV | 4,198 | 8 | Clean |