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 |
|---|---|---|---|---|
| Shawnee Co RWD 1C | Auburn, KS | 4,160 | 58 | Clean |
| Baldwin | Baldwin, GA | 4,160 | 73 | Clean |
| Harris County MUD 304 | The Woodlands, TX | 4,158 | 36 | Clean |
| Goodview | Winona, MN | 4,158 | 62 | Clean |
| Tennyson Water Utility | Tennyson, IN | 4,158 | 44 | Clean |
| Aqua PA Inc Treasure Lake Div | Sharon, PA | 4,155 | 458 | Clean |
| Crystal Mountain Inc | Raymond, WA | 4,154 | 130 | Clean |
| Nashville Waterworks | Nashville, AR | 4,153 | 25 | Detected |
| Maeser Improvement District | Vernal, UT | 4,152 | 266 | Clean |
| Cincinnati VA Medical Center | Cincinnati, OH | 4,152 | 0 | - |
| Livingston Community Water Authority | Brighton, MI | 4,152 | 0 | - |
| Dallas County Water & Sewer Authority | Selma, AL | 4,152 | 20 | Clean |
| Centerville C.s.d. | Redding, CA | 4,151 | 8 | Clean |
| Irvin Water District #6 | Spokane, WA | 4,150 | 11 | Detected |
| Buckingham Twp Furlong | Buckingham, PA | 4,150 | 151 | - |
| Lowell | Lowell, MI | 4,150 | 6 | Clean |
| Linden, City Of | Linden, MI | 4,150 | 47 | Clean |
| Town of Franklinton Water System | Franklinton, LA | 4,150 | 92 | Clean |
| Russian River County Water District | Forestville, CA | 4,150 | 13 | Clean |
| Brazoria - Fort Bend Counties MUD 3 | Houston, TX | 4,149 | 0 | - |
| North West Pump District | Dover, DE | 4,149 | 7 | Clean |
| Barnegat Light Water Dep | Barnegat Light, NJ | 4,148 | 67 | Clean |
| Magnolia-Lakeshore Estates | Des Peres, LA | 4,146 | 36 | - |
| Trimble Co Water District #1 | Bedford, KY | 4,146 | 38 | Clean |
| Mount Hermon | Chatham, VA | 4,145 | 18 | Detected |
| Fort Bend County MUD 123 | Houston, TX | 4,143 | 1 | Detected |
| Cass County PWSD 7 | Freeman, MO | 4,143 | 5 | Detected |
| Armona Community Services Dist | Armona, CA | 4,143 | 292 | Clean |
| Manchester Water Dept | Manchester Center, VT | 4,140 | 32 | Clean |
| Sparta | Sparta, MI | 4,140 | 41 | Clean |
| Hillside Service Area | Rathdrum, ID | 4,140 | 72 | - |
| Hartford Water Works | Hartford, AL | 4,140 | 191 | Clean |
| Clay Center, City Of | Clay Center, KS | 4,138 | 42 | Clean |
| City of Coleman | Coleman, TX | 4,136 | 75 | Detected |
| Muskogee Co. RWD #5 | Muskogee, OK | 4,135 | 538 | Clean |
| South Point Village | South Point, OH | 4,133 | 87 | Detected |
| Big Sky County Water and Sewer Dist 363 | Big Sky, MT | 4,132 | 97 | Detected |
| Regional Water | Avoca, IA | 4,132 | 36 | Clean |
| Oglethorpe | Oglethorpe, GA | 4,129 | 20 | Clean |
| Melbourne Waterworks | Melbourne, AR | 4,126 | 82 | Clean |
| Aumsville, City Of | Aumsville, OR | 4,125 | 61 | Clean |
| Bluffton Village | Bluffton, OH | 4,125 | 196 | Detected |
| Samson Water Works | Samson, AL | 4,125 | 6 | Clean |
| City of Wheatland | Wheatland, CA | 4,124 | 9 | Detected |
| Zelienople Boro | Zelienople, PA | 4,123 | 307 | Detected |
| Lpwd North Production Facility | Lafayette, LA | 4,122 | 6 | Clean |
| Shirley Water District | Shirley, MA | 4,121 | 89 | Detected |
| Otsego | Otsego, MI | 4,120 | 3 | Detected |
| Hartland WD | Gasport, NY | 4,117 | 0 | Clean |
| Whistler Water Association | Waynesboro, MS | 4,116 | 732 | Clean |