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 |
|---|---|---|---|---|
| Fort Bend County MUD 134B | Houston, TX | 7,356 | 0 | Detected |
| East Lowndes W/a B West-Old Yorkville RD | Columbus, MS | 7,355 | 85 | Clean |
| Tontitown Waterworks | Tontitown, AR | 7,355 | 42 | Clean |
| Hastings | Hastings, MI | 7,350 | 41 | Clean |
| Madison Water Department | Madison, FL | 7,350 | 143 | Clean |
| Aquarion Water Company Oxford | Millbury, MA | 7,343 | 10 | Detected |
| Phil Campbell Water Works | Phil Campbell, AL | 7,341 | 7 | Clean |
| East Madison Water Assn-West | Canton, MS | 7,339 | 985 | Clean |
| South Monroe WS Gowc | West Monroe, LA | 7,335 | 282 | Clean |
| Town and Country Utility | Palm Beach Gardens, FL | 7,332 | 6 | - |
| Northwest Rural Water District | Cody, WY | 7,330 | 4 | Clean |
| San Gabriel Valley Water Co-Montebello 2 | El Monte, CA | 7,330 | 9 | Clean |
| Homeland Park W/D (Sc0420001) | Anderson, SC | 7,328 | 13 | Detected |
| Eaton Town Of | Eaton, CO | 7,328 | 39 | Clean |
| Emerald Forest Utility District | Houston, TX | 7,326 | 12 | Detected |
| Williamstown Water Dept | Williamstown, MA | 7,326 | 17 | Clean |
| Savoy Swords Water System Inc | Eunice, LA | 7,326 | 20 | Clean |
| Parkway Utility District | Houston, TX | 7,323 | 19 | Detected |
| Diana Sud | Diana, TX | 7,320 | 33 | Detected |
| Granite Falls, Town Of | Granite Falls, NC | 7,318 | 167 | Clean |
| Kaufman County Fwsd 4A | Dallas, TX | 7,317 | 10 | - |
| Harris County MUD 152 | Houston, TX | 7,314 | 1 | Clean |
| City of Brunswick | Brunswick, MD | 7,312 | 17 | Clean |
| Grove Municipal Services Auth. | Grove, OK | 7,311 | 70 | Clean |
| Vandenberg Village Comm. Serv. Dist. | Lompoc, CA | 7,308 | 2 | Clean |
| Adairsville | Adairsville, GA | 7,306 | 35 | Clean |
| Town of Albany Water System | Albany, LA | 7,305 | 35 | Clean |
| Hampton | Hampton, GA | 7,305 | 76 | Detected |
| South Pittsburg Water System | South Pittsburg, TN | 7,304 | 67 | Detected |
| Cotati, City Of | Cotati, CA | 7,303 | 3 | Clean |
| Lan del Water District | Lansing, KS | 7,302 | 9 | Clean |
| N a S Oceana | Virginia Beach, VA | 7,300 | 24 | Clean |
| Littlestown Boro | Littlestown, PA | 7,300 | 464 | Detected |
| Upper Saucon Twp Water Supply | Center Valley, PA | 7,300 | 620 | Detected |
| Heritage Water Company | Clinton, CT | 7,300 | 80 | Detected |
| Putnam Water Pollution Control Authority | Putnam, CT | 7,300 | 453 | Detected |
| Lavalette Psd | Lavalette, WV | 7,293 | 15 | Detected |
| City of Lampasas | Lampasas, TX | 7,291 | 60 | Detected |
| Nashville Rural Water Authority | Nashville, AR | 7,291 | 223 | Clean |
| Williston Park (V) | Williston Park, NY | 7,287 | 14 | Detected |
| East Bay Water Works | Suttons Bay, 05 | 7,284 | 67 | Clean |
| City of Wills Point | Wills Point, TX | 7,281 | 130 | Detected |
| City of Perry | Perry, FL | 7,281 | 140 | Detected |
| D & M WSC | Douglass, TX | 7,280 | 93 | Clean |
| Batesville Water Utility | Batesville, IN | 7,280 | 84 | Detected |
| New Ellenton Cpw (Sc0210007) | New Ellenton, SC | 7,277 | 84 | Clean |
| City of Lacy Lakeview | Lacy Lakeview, TX | 7,275 | 86 | Detected |
| Minersville Municipal Water Au | Minersville, PA | 7,275 | 395 | Clean |
| Crookston | Crookston, MN | 7,272 | 2 | Clean |
| Neptune Beach | Neptune Beach, FL | 7,270 | 52 | Clean |