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 |
|---|---|---|---|---|
| Woodward | Woodward, OK | 15,000 | 64 | Clean |
| Indian Hill City PWS | Cincinnati, OH | 15,000 | 29 | Detected |
| Glenville WD #11 | Glenville, NY | 15,000 | 84 | Detected |
| Halfmoon Water District (Troy) | Halfmoon, NY | 15,000 | 44 | Clean |
| Lake Welch + Sebago Beach W.S. | Bear Mountain, NY | 15,000 | 51 | - |
| Horseheads Village | Horseheads, NY | 15,000 | 1,028 | Clean |
| Boulder City | Boulder City, NV | 15,000 | 7 | Clean |
| Ship Bottom Water Depart | Manahawkin, NJ | 15,000 | 40 | Clean |
| Seaside Park Water Dept | Seaside Park, NJ | 15,000 | 306 | Clean |
| University of Montana | Missoula, MT | 15,000 | 26 | Clean |
| MS State University | Mississippi State, MS | 15,000 | 618 | Clean |
| City of Corinth | Glen, MS | 15,000 | 1,427 | Detected |
| Jackson PWS | Jackson, MO | 15,000 | 9 | Clean |
| Alexandria | Alexandria, MN | 15,000 | 18 | Detected |
| Chapel Hill - Aberdeen Proving Grounds | Aberdeen, MD | 15,000 | 14 | Clean |
| City of Cambridge Water | Cambridge, MD | 15,000 | 6 | Clean |
| Martinsville Water Utility | Martinsville, IN | 15,000 | 49 | Clean |
| California Mens Colony | San Luis Obispo, CA | 15,000 | 11 | Clean |
| Lemoore Naval Air Station | Lemoore, CA | 15,000 | 83 | Clean |
| Caltrans-Maxwell Reststops | Grass Valley, CA | 15,000 | 3 | - |
| Boaz Water & Sewer Board | Boaz, AL | 15,000 | 10 | Detected |
| Sandia Resort & Casino | Bernalillo, 06 | 15,000 | 35 | Clean |
| City of Port Neches | Port Neches, TX | 14,994 | 32 | Clean |
| Hanover Water Dept | Hanover, MA | 14,984 | 51 | Detected |
| American Water O&m, LLC - Vsfb | Vandenberg Sfb, CA | 14,971 | 17 | Clean |
| Berkley | Berkley, MI | 14,970 | 5 | Clean |
| Oakland Water Dept | Oakland, TN | 14,957 | 7 | Clean |
| City of Kilgore | Kilgore, TX | 14,948 | 41 | Detected |
| Henderson-Kerr Lake Reg Wtr | Henderson, NC | 14,937 | 124 | Detected |
| Havelock Water System | Havelock, NC | 14,925 | 74 | Clean |
| Pecan Grove MUD | Houston, TX | 14,913 | 14 | Detected |
| Sbdno County Service Area 64 | San Bernardino, CA | 14,911 | 7 | Clean |
| Clarksdale Public Utilities | Clarksdale, MS | 14,903 | 809 | Clean |
| Gig Harbor Water Dept | Gig Harbor, WA | 14,902 | 36 | Clean |
| Oldsmar Water System | Oldsmar, FL | 14,898 | 15 | Clean |
| City of Livingston | Livingston, CA | 14,894 | 35 | Clean |
| Wood Creek Water District | London, KY | 14,892 | 541 | Detected |
| Nueces County Wcid 4 | Port Aransas, TX | 14,880 | 38 | Detected |
| Waunakee Waterworks | Waunakee, WI | 14,879 | 35 | Clean |
| West Laurel Water Assoc Inc | London, KY | 14,878 | 31 | Clean |
| Pigeon Forge Water Department | Sevierville, TN | 14,872 | 41 | Clean |
| Comerio Urbano | Comerio, PR | 14,872 | 261 | Detected |
| Harris County MUD 200 Cranbrook | Houston, TX | 14,868 | 6 | Detected |
| Thibodaux Waterworks | Thibodaux, LA | 14,862 | 180 | Clean |
| City of Azle | Azle, TX | 14,847 | 18 | Detected |
| Six Mile W/D (Sc3920002) | Six Mile, SC | 14,845 | 14 | Clean |
| Whitman Water System | Whitman, MA | 14,837 | 50 | Detected |
| Tellico Area Services System | Vonore, TN | 14,836 | 27 | Clean |
| Three Springs Regional - Rcpw | Harrisonburg, VA | 14,834 | 6 | Clean |
| Wildwood Subdivision - Lake Co Pw | Libertyville, IL | 14,832 | 53 | Clean |