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 Raymondville | Raymondville, TX | 11,288 | 83 | Detected |
| Cheniere Drew North Water System | West Monroe, LA | 11,280 | 19 | Clean |
| Alamosa City Of | Alamosa, CO | 11,271 | 660 | Clean |
| Two Rivers Waterworks | Two Rivers, WI | 11,270 | 298 | Clean |
| Spring Lake Water Department | Spring Lake Heights, NJ | 11,270 | 29 | Clean |
| Kaufman County Fwsd 1A | Dallas, TX | 11,268 | 63 | Detected |
| Red Hawk Casino - Shingle Springs | Shingle Springs, 09 | 11,268 | 9 | Clean |
| Canandaigua City | Canandaigua, NY | 11,264 | 98 | Clean |
| Maysville Utility Commission | Maysville, KY | 11,263 | 178 | Detected |
| Harris County Utility District 6 | Houston, TX | 11,262 | 5 | Detected |
| Snohomish City Of | Snohomish, WA | 11,258 | 111 | Clean |
| City of Fredericksburg | Fredericksburg, TX | 11,257 | 32 | Clean |
| Southern Okla Water Corp | Ardmore, OK | 11,250 | 1,836 | Detected |
| Resorts World las Vegas | Las Vegas, NV | 11,250 | 4 | - |
| NJ American Water - Little Falls | Short Mills, NJ | 11,247 | 11 | Detected |
| Humboldt Industrial Park | Hazleton, PA | 11,243 | 1,007 | Detected |
| Sugar Grove | Sugar Grove, IL | 11,243 | 80 | Detected |
| G M WSC | Hemphill, TX | 11,220 | 189 | Detected |
| Florence Twp W Dept | Florence, NJ | 11,214 | 116 | Detected |
| Oregon Waterworks | Oregon, WI | 11,200 | 47 | Clean |
| Scotts Valley Water District | Scotts Valley, CA | 11,197 | 21 | Detected |
| Kenova Municipal Water | Kenova, WV | 11,192 | 211 | Clean |
| Burr Ridge | Burr Ridge, IL | 11,192 | 20 | Clean |
| Lago Guajataca | Isabela, PR | 11,187 | 573 | Clean |
| Mount Kisco Water Department | Mount Kisco, NY | 11,187 | 46 | Detected |
| IL American-Chicago Suburban | Godfrey, IL | 11,187 | 50 | Clean |
| City of Rockport | Rockport, TX | 11,186 | 14 | Detected |
| Enterprise Cdd (Consecutive) | Celebration, FL | 11,178 | 13 | Clean |
| Gastonia Scurry Sud | Scurry, TX | 11,169 | 28 | Detected |
| Exeter, City Of | Exeter, CA | 11,169 | 38 | - |
| East Greenacres Irrigation Dist | Post Falls, ID | 11,165 | 33 | Clean |
| Greater Plattsburgh Water District | Plattsburgh, NY | 11,162 | 456 | Clean |
| Mequon Water Utility | Mequon, WI | 11,152 | 91 | Clean |
| Appalachian State Univ WTP | Boone, NC | 11,150 | 239 | Clean |
| Mid-Arkansas Utilities P.W.A | Cabot, AR | 11,148 | 7 | Clean |
| City of Anderson | Anderson, CA | 11,147 | 11 | Clean |
| Clinton, City Of | Clinton, NC | 11,145 | 29 | Clean |
| North Austin MUD 1 | Austin, TX | 11,133 | 10 | Clean |
| Ironton | Ironton, OH | 11,129 | 92 | Detected |
| Columbia | Columbia, IL | 11,129 | 6 | Detected |
| Starr-Iva W/D (Sc0420005) | Starr, SC | 11,125 | 6 | Detected |
| Roxboro, City Of | Roxboro, NC | 11,122 | 70 | Detected |
| Cal-Water Service Co.-Oroville | San Jose, CA | 11,106 | 4 | Detected |
| City of Snyder | Snyder, TX | 11,104 | 73 | Detected |
| Town of Fairview | Fairview, TX | 11,100 | 88 | Detected |
| Grand Bay Water Works Board | Grand Bay, AL | 11,100 | 38 | Detected |
| Ft Madison Muni Water Works | Fort Madison, IA | 11,087 | 249 | Clean |
| Excelsior Springs PWS | Excelsior Springs, MO | 11,084 | 27 | Clean |
| Harris County Wcid 36 | Houston, TX | 11,073 | 8 | Detected |
| Pagosa Area WSD | Pagosa Springs, CO | 11,069 | 412 | Clean |