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 |
|---|---|---|---|---|
| Gay & Robinson | Kaumakani, HI | 1,271 | 58 | - |
| Dwp - Fawnskin | Big Bear Lake, CA | 1,271 | 5 | - |
| Walnut Creek Water Co. | Walnut Creek, OH | 1,270 | 322 | - |
| Cameron Trading Post | Cameron, AZ | 1,270 | 320 | - |
| Fall Creek Waterworks | Fall Creek, WI | 1,269 | 65 | - |
| Harris County MUD 551 | Houston, TX | 1,269 | 5 | - |
| Harris County MUD 421 | Houston, TX | 1,269 | 0 | - |
| Swancreek Water District | Delta, OH | 1,269 | 28 | - |
| Shell Rock Muni Water Supp | Shell Rock, IA | 1,269 | 14 | - |
| Hollins Water Authority | Hollins, AL | 1,269 | 111 | - |
| Pittsburg Co. RWD #16 | McAlester, OK | 1,268 | 145 | Detected |
| Central Logan County Pwfb | Paris, AR | 1,268 | 12 | - |
| Middlebourne Water Works | Middlebourne, WV | 1,267 | 310 | - |
| Rivesville Town Of | Rivesville,, WV | 1,267 | 91 | - |
| Road Ranger Travel Center | Rockford, WI | 1,267 | 17 | - |
| Obetz Satellite 2 PWS | Obetz, OH | 1,267 | 11 | - |
| Cave Rock Skyland | Minden, NV | 1,267 | 53 | - |
| Cobden | Cobden, IL | 1,267 | 33 | - |
| Centennial Park Dwid | Colorado City, AZ | 1,267 | 309 | - |
| Western Forest Industries Museum | Eatonville, WA | 1,266 | 3 | - |
| Royalton | Royalton, MN | 1,266 | 15 | - |
| Waterworks 1 of Morehouse, Inc | Bastrop, LA | 1,266 | 100 | - |
| Allen Parish Ww District No 1 | Oakdale, LA | 1,266 | 103 | - |
| Manly Water Supply | Manly, IA | 1,266 | 15 | - |
| Byram Lakes Elem School | Stanhope, NJ | 1,265 | 108 | - |
| Fremont, Town Of | Freemont, NC | 1,265 | 93 | Clean |
| Converse Water Works | Converse, IN | 1,265 | 139 | - |
| Sonoma County CSA 41-Fitch Mountain | Santa Rosa, CA | 1,265 | 5 | - |
| Brunner Hill Water Assoc | Jordan, AR | 1,265 | 10 | - |
| Gillett Waterworks | Gillett, WI | 1,264 | 48 | - |
| Freeland Water and Sewer District | Freeland, WA | 1,264 | 91 | - |
| Lowell, City Of | Lowell, OR | 1,264 | 79 | - |
| Wickliffe Municipal Water System | Wickliffe, KY | 1,264 | 159 | - |
| Central City Water Supply | Central City, IA | 1,264 | 56 | - |
| Montague, City Of | Montague, CA | 1,264 | 23 | - |
| Fort Bend County MUD 145 Rio Vista | Houston, TX | 1,263 | 0 | - |
| Rusk State Hospital | Rusk, TX | 1,263 | 36 | - |
| Waldenwoods-Campground-1&2 | Hartland, MI | 1,263 | 9 | - |
| Citgo Petroleum Refinery Water System | Lake Charles, LA | 1,263 | 65 | - |
| Valmeyer | Valmeyer, IL | 1,263 | 62 | Clean |
| Ladd | Ladd, IL | 1,263 | 188 | - |
| Kingston | Kingston, GA | 1,263 | 152 | - |
| Ariton Water Works Board (Town Of) | Ariton, AL | 1,263 | 29 | - |
| Theresa Waterworks | Theresa, WI | 1,262 | 232 | - |
| Bc Water Co | Kennewick, WA | 1,262 | 29 | - |
| Lakota Pre K-12 School | Kansas 44841, OH | 1,262 | 0 | - |
| Ansonville Water System | Ansonville, NC | 1,262 | 265 | - |
| Wicomico Shores | California, MD | 1,262 | 18 | - |
| Otterbein Water Department | Otterbein, IN | 1,262 | 48 | - |
| WY DOT-Star Valley Rest Area | Rock Springs, WY | 1,260 | 4 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).