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 |
|---|---|---|---|---|
| Bastrop County Wcid 2 | Bastrop, TX | 7,269 | 68 | Detected |
| City of Gridley | Gridley, CA | 7,269 | 11 | Detected |
| City of Iuka | Iuka, MS | 7,268 | 295 | Clean |
| Cynthiana Municipal Water Works | Cynthiana, KY | 7,263 | 754 | Detected |
| Fort Bend County MUD 134C | Houston, TX | 7,260 | 11 | Detected |
| Fort McDowell Community | Fountain Hills, 09 | 7,260 | 169 | Clean |
| Williston Water Dept | Williston, VT | 7,259 | 2 | Clean |
| Georgetown Water Department | Georgetown, DE | 7,259 | 2 | Detected |
| Middleton Water Dept. | Middleton, MA | 7,255 | 18 | Detected |
| Atlantic Municipal Utilities | Atlantic, IA | 7,252 | 15 | Clean |
| Wvaw - Walnut Grove Utilities | Charleston, WV | 7,250 | 2,103 | Detected |
| Satsuma (the Wwb of the City Of) | Satsuma, AL | 7,248 | 154 | Clean |
| Harris County MUD 504 | Houston, TX | 7,242 | 0 | - |
| Cal-Water Service Co.-Willows | San Jose, CA | 7,240 | 3 | Clean |
| Malcomson Road Utility District | Houston, TX | 7,231 | 33 | Detected |
| North Bend City Of | North Bend, WA | 7,228 | 5 | Clean |
| Awa, Ione | Sutter Creek, CA | 7,227 | 22 | Clean |
| City of la Feria | La Feria, TX | 7,226 | 171 | Detected |
| Hopatcong Water Dept | Hopatcong, NJ | 7,224 | 462 | Detected |
| River Rouge | River Rouge, MI | 7,224 | 35 | Clean |
| Warren Comm W and S Assn 2 | Marietta, OH | 7,215 | 29 | Detected |
| Hermantown | Hermantown, MN | 7,215 | 0 | Clean |
| Todd Creek Village MD | Brighton, CO | 7,202 | 68 | Detected |
| Kill Devil Hills, Town Of | Kill Devil Hills, NC | 7,200 | 1 | Clean |
| Spring Lake Park | Spring Lake Park, MN | 7,200 | 37 | Clean |
| St James Water District 1 | Convent, LA | 7,200 | 109 | Clean |
| NE Yell County Water Assoc | Dardanelle, AR | 7,198 | 195 | Clean |
| Stockbridge | Stockbridge, GA | 7,195 | 19 | Detected |
| City of Winnfield Water System | Winnfield, LA | 7,194 | 126 | Clean |
| Inverness Water Dept | Inverness, FL | 7,194 | 105 | Detected |
| Merrimac Water Department | Merrimac, MA | 7,193 | 276 | Detected |
| Gcwsa - Jarratt | Emporia, VA | 7,190 | 10 | Detected |
| New London Waterworks | New London, WI | 7,187 | 447 | Detected |
| Hwy 63 Water Association | Rison, AR | 7,187 | 33 | Clean |
| Dyess Air Force Base | Dyess Afb, TX | 7,183 | 24 | Detected |
| Hiawatha Water Dept | Hiawatha, IA | 7,183 | 13 | Detected |
| Jonathan Creek Water District | Benton, KY | 7,182 | 342 | Clean |
| Laf Jo Saline County Cons PWSD 2 | Higginsville, MO | 7,180 | 78 | Detected |
| Harris County MUD 449 | Houston, TX | 7,179 | 0 | - |
| Windfern Forest Utility District | Houston, TX | 7,170 | 37 | Detected |
| Duquoin | Duquoin, IL | 7,169 | 55 | Detected |
| Hudson Water Works | Hudson, FL | 7,169 | 40 | Detected |
| Las Marias | Las Marias, PR | 7,166 | 206 | Clean |
| Spsm | Jackson, MI | 7,166 | 24 | Clean |
| Sultan Water Department | Sultan, WA | 7,160 | 92 | Clean |
| Rockford | Rockford, MI | 7,160 | 12 | Clean |
| Sandwich | Sandwich, IL | 7,156 | 48 | Clean |
| Pickens County Water Auth. | Jasper, GA | 7,153 | 32 | Clean |
| Lanett Water Works | Lanett, AL | 7,152 | 84 | Detected |
| Milton-Freewater, City Of | Milton-Freewater, OR | 7,145 | 290 | Detected |