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 |
|---|---|---|---|---|
| Lv Hospital Cedar Crest | Allentown, PA | 8,425 | 5 | - |
| Hidalgo County MUD 1 | Mission, TX | 8,420 | 118 | Detected |
| So Anderson Water District | Lawrenceburg, KY | 8,417 | 39 | Detected |
| Quincy Water Department City Of | Quincy, WA | 8,415 | 281 | Clean |
| Rice University | Houston, TX | 8,415 | 34 | Detected |
| Natchitoches Parish Wwks District 2 | Natchez, LA | 8,415 | 270 | Clean |
| Silverthorne Town Of | Silverthorne, CO | 8,414 | 362 | Detected |
| Yak Co - Terrace Heights | Yakima, WA | 8,410 | 174 | Clean |
| Houtzdale Municipal Authority | Houtzdale, PA | 8,410 | 91 | Clean |
| Chester | Chester, IL | 8,407 | 113 | Detected |
| Attalla Water Works Board | Attalla, AL | 8,403 | 9 | Clean |
| Clover Town of (Sc4610006) | Clover, SC | 8,400 | 18 | Clean |
| City of Stayton | Stayton, OR | 8,400 | 46 | Clean |
| Eaton Public Water System | W. Alexandria, OH | 8,400 | 0 | Clean |
| Willard PWS | Willard, MO | 8,400 | 72 | Clean |
| Knoxville Water Works | Knoxville, IA | 8,400 | 20 | Clean |
| Bayside Pump District (Tui) | Dover, DE | 8,400 | 4 | Detected |
| McCall Water System Inc | Brewton, AL | 8,400 | 39 | Clean |
| Jefferson Co Cons RWD #1 | Hastings, OK | 8,398 | 1,247 | Detected |
| Tbcd Winnie Stowell | Stowell, TX | 8,397 | 74 | Detected |
| Wynne Waterworks | Wynne, AR | 8,391 | 9 | Clean |
| Houghton | Houghton, MI | 8,386 | 20 | Clean |
| Hudson City PWS | Hudson, OH | 8,385 | 6 | Clean |
| Acushnet Water Department | Acushnet, MA | 8,384 | 18 | Clean |
| City of Hitchcock | Hitchcock, TX | 8,379 | 63 | Detected |
| Chickasaw Winstar Casino | 06 | 8,376 | 13 | Clean |
| Rathbun Reg Wtr Assn (Burlington) | Centerville, IA | 8,375 | 51 | Detected |
| Cushing | Cushing, OK | 8,371 | 36 | Clean |
| Okmulgee Co. RWD #6 (Hectorville) | Mounds, OK | 8,370 | 496 | Detected |
| Jennings Water, Inc. | North Vernon, IN | 8,370 | 42 | Clean |
| Gilberts | Gilberts, IL | 8,366 | 17 | Clean |
| Virginia | Virginia, MN | 8,361 | 1 | Clean |
| Richfield City | Richfield, UT | 8,360 | 168 | Clean |
| Kenton City | Kenton, OH | 8,360 | 22 | Clean |
| Weaverville, Town Of | Weaverville, NC | 8,359 | 72 | Clean |
| Webb County Water Utilities | Laredo, TX | 8,358 | 767 | Detected |
| Quint-Mar Water Authority | Highland Home, AL | 8,358 | 4 | Clean |
| City of Senatobia | Senatobia, MS | 8,354 | 1,207 | Clean |
| Waite Park | Waite Park, MN | 8,354 | 6 | Detected |
| Jackrabbit Road PUD | Houston, TX | 8,346 | 7 | Detected |
| Hubbard City PWS | Hubbard, OH | 8,339 | 10 | Detected |
| Zeeland Board of Public Works | Zeeland, MI | 8,328 | 6 | Clean |
| Gonzales, City Of | Gonzales, CA | 8,327 | 24 | Clean |
| Bryan County Rural Water District #5 | Durant, OK | 8,325 | 280 | Detected |
| Franklin Water Supply | Franklin, LA | 8,325 | 558 | Detected |
| Hemlock Farms (Main) | Lords Valley, PA | 8,321 | 275 | Clean |
| Clemson University (Sc3910006) | Clemson, SC | 8,320 | 29 | Detected |
| La Junta City Of | La Junta, CO | 8,320 | 80 | Clean |
| North Bay Village, City Of | North Bay Village, FL | 8,317 | 27 | Detected |
| Knox County Utility Commission | Barbourville, KY | 8,313 | 1,031 | Clean |