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 |
|---|---|---|---|---|
| Andover-Camplands Water | Andover, OH | 6,009 | 344 | Clean |
| McConnell Afb | McConnell Afb, KS | 6,009 | 26 | Clean |
| Prairie Du Chien Waterworks | Prairie Du Chien, WI | 6,005 | 89 | Detected |
| Town of Poolesville | Poolesville, MD | 6,005 | 144 | Detected |
| Edward Farrar Utility District | Waterbury, VT | 6,003 | 285 | Clean |
| Headland Water Works | Headland, AL | 6,003 | 9 | Clean |
| Warren Waterworks | Warren, AR | 6,001 | 9 | Clean |
| Rocky Mount, Town Of | Rocky Mount, VA | 6,000 | 16 | Detected |
| Summit Water Distribution Company | Heber City, UT | 6,000 | 131 | Clean |
| Town of Cut and Shoot | Cut and Shoot, TX | 6,000 | 16 | Clean |
| City of Alpine | Alpine, TX | 6,000 | 81 | Clean |
| Clear River Electric and Water District | Pascoag, RI | 6,000 | 23 | - |
| Penn National Gaming | Grantville, PA | 6,000 | 102 | Clean |
| Belle Vernon Boro Muni Auth | Belle Vernon, PA | 6,000 | 519 | Clean |
| College Twp Water Authority | State College, PA | 6,000 | 652 | Detected |
| Schuylkill Haven Boro Water | Schuylkill Haven, PA | 6,000 | 110 | Clean |
| Seal Rock Water District | Seal Rock, OR | 6,000 | 15 | Clean |
| Ice Fountain Water District | Hood River, OR | 6,000 | 145 | Clean |
| Cleves Village PWS | Cleves, OH | 6,000 | 15 | Clean |
| Westchester County WD #3 | New Rochelle, NY | 6,000 | 318 | Clean |
| Albion Village | Waterport, NY | 6,000 | 92 | Clean |
| Rhinebeck Village Water | Rhinebeck, NY | 6,000 | 13 | Clean |
| Woodland Park Water Department | Woodland Park, NJ | 6,000 | 56 | Detected |
| Westville Water Department | Westville, NJ | 6,000 | 94 | Detected |
| North Caldwell Water Dep | North Caldwell, NJ | 6,000 | 80 | Detected |
| Wolfeboro Water and Sewer | Wolfeboro, NH | 6,000 | 86 | Clean |
| Lancaster Co RWD 1 | Bennet, NE | 6,000 | 27 | Clean |
| Pacific PWS | Pacific, MO | 6,000 | 92 | Clean |
| Taney County PWSD 3 | Branson, MO | 6,000 | 54 | Clean |
| Otis Air National Guard Base | Otis Angb, MA | 6,000 | 28 | Clean |
| Lancaster Water Department | Lancaster, MA | 6,000 | 49 | Clean |
| Grambling State University WS | Grambling, LA | 6,000 | 163 | Clean |
| Caldwell County Water District | Princeton, KY | 6,000 | 112 | Detected |
| Gas City Water Department | Gas City, IN | 6,000 | 55 | Clean |
| Bay Harbor Islands Town Of | Bay Harbor Islands, FL | 6,000 | 19 | Detected |
| Bridgeville Water Department | Bridgeville, DE | 6,000 | 11 | Clean |
| Lakewood City Of | Lakewood, CO | 6,000 | 0 | - |
| Sweetwater Springs Cwd - Guerneville | Guerneville, CA | 6,000 | 7 | Clean |
| Caltrans, Whitewater Rest Area | San Bernardino, CA | 6,000 | 22 | - |
| Lake Almanor Country Club MWC | Lake Almanor, CA | 6,000 | 6 | Clean |
| Soledad Mission WS | Soledad, CA | 6,000 | 70 | - |
| Barona | Lakeside, 09 | 6,000 | 114 | Detected |
| Quapaw Downstream Casino & Resort | Quapaw, 06 | 6,000 | 8 | Clean |
| Bellflower Municipal Water System | Rosemead, CA | 5,999 | 8 | Detected |
| Kekaha-Waimea | Lihue, HI | 5,998 | 21 | Clean |
| Chillicothe | Chillicothe, IL | 5,996 | 137 | Detected |
| East Central Regional WD-Gf | Thompson, ND | 5,995 | 9 | Clean |
| Sumiton Water Works Board | Sumiton, AL | 5,994 | 20 | Clean |
| Wilson Town Water District | Wilson, NY | 5,993 | 1 | Clean |
| Turnerville Water & Fire Pro District | Saraland, AL | 5,991 | 2 | Clean |