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 |
|---|---|---|---|---|
| Regional Utilities Water System | Santa Rosa Beach, FL | 62,225 | 17 | Clean |
| Revere Water Division (Mwra) | Revere, MA | 62,186 | 34 | Detected |
| Monterey Park-City, Water Dept. | Los Angeles, CA | 62,183 | 9 | Detected |
| Taunton Water Division | Taunton, MA | 62,165 | 74 | Clean |
| Hanford, City Of | Hanford, CA | 62,127 | 454 | Clean |
| Springfield Utility Board | Springfield, OR | 62,100 | 21 | Detected |
| Lakewood Water District | Lakewood, WA | 62,089 | 63 | Detected |
| Danbury Water Department | Danbury, CT | 62,055 | 326 | Detected |
| Arizona Water Co - Apache Junction | Phoenix, AZ | 62,055 | 88 | Clean |
| Deerfield Beach, City Of | Deerfield Beach, FL | 62,000 | 55 | Detected |
| Hampton Shaler Water Authority | Allison Park, PA | 61,949 | 74 | Clean |
| Schenectady City Water Works | Schenectady, NY | 61,821 | 113 | Clean |
| Burnsville | Burnsville, MN | 61,747 | 6 | Detected |
| Ridgewood Water | Ridgewood, NJ | 61,700 | 776 | Detected |
| Medford Water Dept. (Mwra) | Medford, MA | 61,700 | 27 | Clean |
| North Marin Water District | Novato, CA | 61,691 | 6 | Clean |
| City of Euless | Euless, TX | 61,601 | 16 | Detected |
| Citizens Water of Westfield, LLC | Indianapolis, IN | 61,493 | 304 | Clean |
| Corvallis, City Of | Corvallis, OR | 61,468 | 39 | Clean |
| City of Woodland | Woodland, CA | 61,462 | 4 | Clean |
| California Water Service - Bear Gulch | San Jose, CA | 61,431 | 9 | Clean |
| Burlington, City Of | Burlington, NC | 61,365 | 161 | Detected |
| Eagle Mountain City | Eagle Mountain, UT | 61,266 | 692 | Clean |
| North Port Utilities | North Port, FL | 61,163 | 20 | Detected |
| Arecibo Urbano | Arecibo, PR | 61,119 | 961 | Detected |
| Blue Springs PWS | Blue Springs, MO | 61,084 | 10 | Clean |
| Texas A&m University Main Campus | College Station, TX | 61,000 | 55 | Clean |
| Smyrna Water System | Smyrna, TN | 60,876 | 148 | Detected |
| Petaluma, City Of | Petaluma, CA | 60,781 | 4 | Clean |
| Springfield City PWS | Springfield, OH | 60,680 | 12 | Clean |
| Des Plaines | Des Plaines, IL | 60,675 | 17 | Clean |
| Lebanon Water System | Lebanon, TN | 60,669 | 15 | Clean |
| Northeast | Winter Haven, FL | 60,557 | 64 | Detected |
| Owensboro Municipal Utilities | Owensboro, KY | 60,473 | 701 | Detected |
| California Water Service - Livermore | San Jose, CA | 60,414 | 2 | Detected |
| Marietta Board of Lights and Water | Marietta, GA | 60,100 | 4 | Detected |
| Sno PUD 1 - Lake Stevens | Everett, WA | 60,064 | 25 | Clean |
| Herriman City Municipal Water Department | Herriman, UT | 60,000 | 1,210 | Detected |
| Great Falls City Of | Great Falls, MT | 60,000 | 26 | Clean |
| New Iberia Water System (Lawco) | Baton Rouge, LA | 59,928 | 20 | Clean |
| Woodinville Water District | Woodinville, WA | 59,873 | 5 | Clean |
| Ormond Beach | Ormond Beach, FL | 59,744 | 46 | Clean |
| St. Clair Shores, City Of | St. Clair Shores, MI | 59,715 | 36 | Clean |
| Dubuque Water Works | Dubuque, IA | 59,667 | 25 | Detected |
| Westchester Joint Water Works | Mamaroneck, NY | 59,629 | 66 | Clean |
| White Plains City | White Plains, NY | 59,559 | 11 | Clean |
| Fairhope, City Of | Fairhope, AL | 59,484 | 471 | Detected |
| Indiana American Water - Kokomo | Greenwood, IN | 59,313 | 9 | Clean |
| City of Gilroy | Gilroy, CA | 59,203 | 2 | Detected |
| Apopka, City of (5 Wtps) | Apopka, FL | 59,113 | 63 | Detected |