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 |
|---|---|---|---|---|
| Lillington Water System | Lillington, NC | 3,847 | 36 | Detected |
| White Sulphur Springs Water | White Sulphur Springs, WV | 3,845 | 88 | Clean |
| Kayenta NTUA | Ft Defiance, NN | 3,844 | 258 | Detected |
| Harris County MUD 345 | Houston, TX | 3,843 | 0 | Clean |
| Riceville Utility District | Riceville, TN | 3,843 | 59 | Detected |
| Tensas Water District Association | St Joseph, LA | 3,843 | 173 | Detected |
| South Claiborne Water System | Athens, LA | 3,843 | 30 | Clean |
| Eddyville Water Department | Eddyville, KY | 3,843 | 31 | Clean |
| McCurtain Co. RWD #1 | Haworth, OK | 3,842 | 226 | Clean |
| Vc/Southwest WTP-2 | Deland, FL | 3,842 | 17 | Detected |
| Masontown Muni Water Works | Masontown, PA | 3,841 | 392 | Clean |
| Emma Long Metro Park | Austin, TX | 3,840 | 92 | - |
| Claxton | Claxton, GA | 3,840 | 194 | Clean |
| Kingsbury Gid | Stateline, NV | 3,839 | 74 | Clean |
| J P Utility District | Ellisville, MS | 3,839 | 1,178 | Clean |
| Montmorenci W/D (Sc0220008) | Aiken, SC | 3,837 | 3 | Clean |
| Lowell, City Of | Lowell, NC | 3,837 | 94 | Clean |
| Milltown-Washburn Water Users | Greenwood, AR | 3,837 | 219 | Clean |
| Leesburg Water Association | Pelahatchie, MS | 3,836 | 839 | Clean |
| Angels, City Of | Angels Camp, CA | 3,836 | 25 | Clean |
| Florala Water Works & Sewer Board | Florala, AL | 3,834 | 77 | - |
| Delhi Village | Delhi, NY | 3,833 | 135 | Clean |
| Sunnyhill Water Association | McComb, MS | 3,833 | 897 | Clean |
| Springfield | Springfield, MI | 3,833 | 12 | Detected |
| Gilbert Street Complex | San Bernardino, CA | 3,833 | 4 | - |
| Shannon Hills Water Dept | Shannon Hills, AR | 3,832 | 15 | Clean |
| Vanleer Water Department | Vanleer, TN | 3,831 | 153 | - |
| Roosevelt Park | Muskegon, MI | 3,831 | 6 | Clean |
| Cinco MUD 9 | Houston, TX | 3,828 | 0 | Clean |
| Toomsuba Water Association | Toomsuba, MS | 3,828 | 721 | Clean |
| Town of Port Barre Water System | Port Barre, LA | 3,828 | 39 | Clean |
| Waukon Water Department | Waukon, IA | 3,827 | 19 | Clean |
| Montgomery County Ud 3 | Houston, TX | 3,825 | 13 | Clean |
| Saint Charles | St. Charles, MN | 3,825 | 8 | Clean |
| Washington Twp Water Authority | Bloomington, IN | 3,825 | 5 | Clean |
| Lemoyne Water System, Inc. | Axis, AL | 3,825 | 440 | Clean |
| Dundee, Town Of | Dundee, FL | 3,824 | 277 | Clean |
| So. Cal. Edison Co.-Santa Catalina | Avalon, CA | 3,822 | 5 | Detected |
| Spanish Trail Water Company | Tucson, AZ | 3,822 | 228 | - |
| Buffalo Creek Psd | Amherstdale, WV | 3,821 | 52 | Clean |
| City of Cockrell Hill | Dallas, TX | 3,820 | 102 | Detected |
| City of Clyde | Clyde, TX | 3,820 | 228 | Detected |
| Town of Byhalia | Byhalia, MS | 3,820 | 1,057 | Clean |
| Bishop, City Of | Bishop, CA | 3,819 | 13 | Clean |
| Level Plains, Town Of | Daleville, AL | 3,819 | 5 | Clean |
| City of Nash | Nash, TX | 3,818 | 39 | Detected |
| North U.dep. of Decatur/Benton Co | Holladay, TN | 3,818 | 87 | Detected |
| Ashford Water Works | Ashford, AL | 3,816 | 124 | Clean |
| Wrightstown Waterworks | Wrightstown, WI | 3,815 | 19 | - |
| Harris County MUD 401 | Houston, TX | 3,813 | 8 | Clean |