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 |
|---|---|---|---|---|
| Naval Support Facility, Indian Head | Indian Head, MD | 3,321 | 58 | Clean |
| Milford Municipal Utilities | Milford, IA | 3,321 | 45 | - |
| Fairview Twp Water Auth Dist 3 | Fairview, PA | 3,320 | 158 | Clean |
| Siam Utility District | Elizabethton, TN | 3,319 | 94 | - |
| Johnson Creek Waterworks | Johnson Creek, WI | 3,318 | 121 | - |
| Folsom, City of - Ashland | Folsom, CA | 3,317 | 0 | Clean |
| Cottonwood Water District | Cottonwood, CA | 3,316 | 9 | Clean |
| Lolo Water and Sewer Dist | Lolo, MT | 3,315 | 92 | - |
| Nashville Water Department | Nashville, IN | 3,315 | 58 | Clean |
| Cherokee RWS - Cherokee Subsystem | Cherokee, IA | 3,315 | 5 | - |
| Norway | Norway, MI | 3,314 | 20 | Clean |
| Oakridge, City Of | Oakridge, OR | 3,310 | 61 | - |
| San Benito High School | Hollister, CA | 3,310 | 18 | Clean |
| Fort Bend County Fwsd 1 | Houston, TX | 3,309 | 18 | - |
| Middleville | Middleville, MI | 3,309 | 64 | Detected |
| Idoc Sbx Complex | Boise, ID | 3,309 | 69 | - |
| Upland Water Department | Upland, IN | 3,308 | 34 | Clean |
| Galena | Galena, IL | 3,308 | 124 | Clean |
| IL American-Liberty Ridge West | Godfrey, IL | 3,307 | 12 | Clean |
| Placid Lakes Utilities, Inc | Lake Placid, FL | 3,307 | 46 | Clean |
| Ellsworth Waterworks | Ellsworth, WI | 3,304 | 40 | Detected |
| Mason Co Psd-Letart | Bruceton Mills, WV | 3,303 | 87 | - |
| Drexel Town Of | Drexel, NC | 3,302 | 18 | - |
| Cdot Vail Pass Ra | Grand Junction, CO | 3,302 | 77 | - |
| Girard Boro Water Dept | Girard, PA | 3,301 | 1,016 | Clean |
| Quartz Flat Rest Stop West | Missoula, MT | 3,301 | 43 | - |
| Quartz Flat Rest Stop East | Missoula, MT | 3,301 | 52 | - |
| Schweitzer Mountain Resort | Sandpoint, ID | 3,301 | 52 | - |
| Peace River Reg Water Plant | Lakewood Ranch, FL | 3,301 | 25 | - |
| Eustis Eastern WTP | Eustis, FL | 3,301 | 3 | - |
| Woods Home Owners Association 2 | Martinsburg, WV | 3,300 | 86 | - |
| Boyer Hill Military Housing | Roy, UT | 3,300 | 17 | Clean |
| Fort Griffin Sud | Albany, TX | 3,300 | 233 | - |
| Parker WSC | Cleburne, TX | 3,300 | 28 | - |
| Harris County MUD 558 | Houston, TX | 3,300 | 0 | - |
| Emporium Water Company | Emporium, PA | 3,300 | 708 | Clean |
| Spring Twp Water Authority | Bellefonte, PA | 3,300 | 226 | Detected |
| Elgin PWA | Elgin, OK | 3,300 | 331 | - |
| Caldwell Village PWS | Caldwell, OH | 3,300 | 95 | Detected |
| Fort Edward Village | Fort Edward, NY | 3,300 | 90 | Detected |
| I-84 Comfort Stn -Westbnd (Stormville) | Poughkeepsie, NY | 3,300 | 52 | - |
| High Bridge W Dept | High Bridge, NJ | 3,300 | 145 | Detected |
| Raymond Water Dept | Raymond, NH | 3,300 | 28 | Detected |
| Lincoln Water Works | Lincoln, NH | 3,300 | 63 | - |
| Hickman, City Of | Hickman, NE | 3,300 | 85 | - |
| Columbus Air Force Base | Columbus Afb, MS | 3,300 | 22 | Clean |
| Shelby County PWSD 1 | Shelbyville, MO | 3,300 | 5 | - |
| Town of Princess Anne | Princess Anne, MD | 3,300 | 305 | Clean |
| New Llano Water Department | New Llano, LA | 3,300 | 66 | Clean |
| Coushatta Water System | Coushatta, LA | 3,300 | 51 | Clean |