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 |
|---|---|---|---|---|
| Caltrans, Cactus City Rest Area | San Bernardino, CA | 6,800 | 26 | - |
| Lake Chelan Reclamation District | Manson, WA | 6,798 | 247 | Clean |
| Harris County MUD 158 | Houston, TX | 6,798 | 9 | Clean |
| City of South Shore Water Works | South Shore, KY | 6,798 | 545 | Detected |
| City of Granite Shoals | Granite Shoals, TX | 6,795 | 418 | Detected |
| Epcor Water New Mexico Inc., Edgewood | Edgewood, NM | 6,795 | 35 | Clean |
| Huguley Water Authority | Lanett, AL | 6,795 | 20 | Detected |
| Fairview Utility District | Pulaski, TN | 6,787 | 18 | Detected |
| Litchfield | Litchfield, MN | 6,786 | 10 | Clean |
| Beale Air Force Base | Beale Afb, CA | 6,785 | 25 | Clean |
| Truth OR Consequences | Truth OR Consequences, NM | 6,783 | 169 | Clean |
| Foresthill Public Utility Dist | Foresthill, CA | 6,782 | 2 | Clean |
| American Water Oper and Maintenance, LLC | Scott Air Force Base, IL | 6,779 | 49 | Detected |
| Santa Fe County South Sector | Santa Fe, NM | 6,775 | 75 | Clean |
| Aberdeen - Cliffwood/Cliffwood Beach | Aberdeen Township, NJ | 6,775 | 190 | Clean |
| Zimmerman | Zimmerman, MN | 6,772 | 43 | Detected |
| City of Carthage | Carthage, TX | 6,770 | 293 | Clean |
| Benton Charter Township | Benton Harbor, MI | 6,768 | 15 | Clean |
| Town of Saltillo | Saltillo, MS | 6,766 | 736 | Clean |
| Belton City of (Sc0410004) | Belton, SC | 6,762 | 61 | Detected |
| Harris County MUD 367 | Houston, TX | 6,759 | 21 | Detected |
| Port Allen Water System | Port Allen, LA | 6,759 | 43 | Clean |
| Iowa Lakes Regional Water | Spencer, IA | 6,755 | 26 | Clean |
| Sterling Water Department | Sterling, MA | 6,754 | 183 | Detected |
| East Cedar Creek Fwsd B a McKay | Mabank, TX | 6,753 | 109 | Detected |
| South Grayson Sud | Van Alstyne, TX | 6,750 | 4 | Detected |
| Neville Twp Water Dept | Pittsburgh, PA | 6,750 | 34 | Clean |
| Hudson City | Hudson, NY | 6,750 | 26 | Clean |
| Anaconda Water Department | Anaconda, MT | 6,750 | 58 | Clean |
| City of Hernando-Jaybird | Hernando, MS | 6,750 | 349 | Clean |
| City of Taneytown | Taneytown, MD | 6,750 | 99 | Detected |
| Kent Water Company | Hanover, IN | 6,750 | 10 | Clean |
| Brent Utilities Board | Brent, AL | 6,750 | 11 | Clean |
| Frankfort Psd | Fort Ashby, WV | 6,747 | 3,932 | Clean |
| Manor Twp Jt Muni Auth | Ford City, PA | 6,744 | 159 | Clean |
| Lyon County Water District | Kuttawa, KY | 6,744 | 91 | Detected |
| Groveland Water Department | Groveland, MA | 6,743 | 46 | Detected |
| Jay Peak Water System | Jay, VT | 6,740 | 289 | Clean |
| Bright Star-Salem Sud | Alba, TX | 6,738 | 27 | Detected |
| Sylvia-TN City-Pond U.d. | Dickson, TN | 6,738 | 29 | Clean |
| Ebarb Wwks Dist # 1 - Aimwell Area | Zwolle, LA | 6,738 | 287 | Clean |
| East Cocalico Township | Denver, PA | 6,735 | 750 | Detected |
| Nuevo Water Company | Nuevo, CA | 6,733 | 16 | Detected |
| Benton County Water District #1 | Avoca, AR | 6,730 | 12 | Clean |
| Columbiana City PWS | Columbiana, OH | 6,727 | 8 | Clean |
| Harris County MUD 64 | Houston, TX | 6,726 | 8 | Clean |
| Eldridge Water Supply | Eldridge, IA | 6,726 | 32 | Clean |
| IL American-Valley View | Godfrey, IL | 6,721 | 3 | Detected |
| Fallbrook Utility District | Houston, TX | 6,720 | 5 | Detected |
| Sidney, City Of | Sidney, NE | 6,720 | 91 | Clean |