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 |
|---|---|---|---|---|
| Graves Co Water Dist - South Graves | Mayfield, KY | 1,844 | 214 | - |
| Siesta Shores Wcid | Zapata, TX | 1,842 | 258 | - |
| Northeast Harris County MUD 1 Edgewood V | Houston, TX | 1,842 | 13 | - |
| Butler WSC | Oakwood, TX | 1,842 | 70 | - |
| Town of Iota Water System | Iota, LA | 1,842 | 86 | - |
| Fairton Federal Correctional | Fairton, NJ | 1,841 | 91 | - |
| Stanton Co Sid 1 - Woodland Park | Norfolk, NE | 1,841 | 19 | - |
| San Joaquin County - Colonial Heights | Stockton, CA | 1,841 | 1 | - |
| North Marin WD - Pt. Reyes | Novato, CA | 1,841 | 3 | - |
| Gilbert Water Works | Gilbert, WV | 1,840 | 813 | - |
| Cumberland County Water System | Cumberland, VA | 1,840 | 10 | - |
| Comanche Co RWD #2 | Elgin, OK | 1,840 | 120 | - |
| Stonehenge S/D | Cary, NC | 1,840 | 294 | - |
| Blue Springs W/A | Blue Springs, MS | 1,840 | 617 | - |
| Soso Community Water Sys. Inc | Soso, MS | 1,840 | 268 | - |
| Cass County PWSD 4 | Harrisonville, MO | 1,840 | 9 | - |
| Fontana Water Utility | Fontana, WI | 1,839 | 252 | - |
| City of Wink | Wink, TX | 1,839 | 63 | - |
| Bayview MUD | Bacliff, TX | 1,839 | 22 | - |
| Pleasant Grove WSC | Fairfield, TX | 1,839 | 56 | - |
| Rockin J Ranch Subdivision | Canyon Lake, TX | 1,839 | 76 | - |
| Merriam Woods PWS | Merriam Woods, MO | 1,839 | 184 | - |
| New Odanah | Odanah, 05 | 1,839 | 203 | - |
| Decatur | Decatur, MI | 1,838 | 18 | - |
| Indiana American Water - Yankeetown | Greenwood, IN | 1,838 | 14 | - |
| DE Pue | Depue, IL | 1,838 | 199 | - |
| Magnet-Butterfield Water Authority | Malvern, AR | 1,838 | 31 | - |
| McClelland WSC | Shelbyville, TX | 1,837 | 118 | - |
| Vale, City Of | Vale, OR | 1,837 | 339 | - |
| Grenada-Bogue Basin/Holcomb | Grenada, MS | 1,837 | 530 | - |
| Clear Creek Forest Section 12 | Austin, TX | 1,836 | 3 | - |
| Blocker Crossroads WSC | Elysian Fields, TX | 1,836 | 114 | - |
| Fort Bend County MUD 206 Victorian Garde | Houston, TX | 1,836 | 4 | - |
| Humboldt, City Of | Humboldt, KS | 1,836 | 31 | - |
| Cornplanter Township | Oil City, PA | 1,835 | 34 | - |
| Slater PWS | Slater, MO | 1,835 | 46 | - |
| St Jacob | St. Jacob, IL | 1,835 | 73 | - |
| Inyo County Pwd - Lone Pine | Independence, CA | 1,835 | 23 | - |
| Quapaw Industrial Park | Quapaw, 06 | 1,835 | 6 | - |
| Jay, Town of - Utilities Dept. | Jay, FL | 1,834 | 122 | - |
| Pine Ridge WSC South | Van, TX | 1,833 | 25 | - |
| Carriage Hills | Austin, TX | 1,833 | 1 | Clean |
| North Milam WSC | Cameron, TX | 1,833 | 46 | - |
| Leetonia Village PWS | New Waterford, OH | 1,833 | 145 | - |
| Twin Lakes NTUA | Ft Defiance, NN | 1,833 | 93 | - |
| Point Sebago Outdoor Resort | Casco, ME | 1,833 | 39 | - |
| Homestead Water Association | McComb, MS | 1,832 | 277 | - |
| Grenada-Bogue Basin/Gore Sprgs | Grenada, MS | 1,832 | 572 | - |
| Liberty Water Noel | Aurora, MO | 1,832 | 13 | - |
| Rocky Point Water District 12 | Bremerton, WA | 1,831 | 4 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).