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 |
|---|---|---|---|---|
| Mt. Hermon Association, Inc. | Mount Hermon, CA | 1,176 | 7 | - |
| West Harris County MUD 16 | Houston, TX | 1,175 | 22 | - |
| Springboro Area Water Auth | Springboro, PA | 1,175 | 223 | - |
| Chapel Hill-Pleasant Grove W/A | Crawford, MS | 1,175 | 531 | - |
| Fuller Lake Wayside Rest MNDOT | St. Paul, MN | 1,175 | 56 | - |
| Youths Benefit Elementary School | Bel Air, MD | 1,175 | 27 | - |
| Freelandville Water Association | Freelandville, IN | 1,175 | 423 | - |
| South Barrington | Geneva, IL | 1,175 | 1 | - |
| Bayview Water and Sewer Dist | Bayview, ID | 1,175 | 36 | - |
| Lancaster Correctional Institute | Tallahassee, FL | 1,175 | 41 | - |
| Maxwell Public Utility District | Maxwell, CA | 1,175 | 9 | - |
| Lewis Co Water Dist #1 | Napavine, WA | 1,174 | 400 | - |
| Ames Minglewood WSC | Liberty, TX | 1,174 | 99 | - |
| Ansonia Village PWS | Ansonia, OH | 1,174 | 29 | - |
| Naschitti-Bisola NTUA | Ft Defiance, NN | 1,173 | 105 | - |
| Thoreau Water & Sanitation District | Thoreau, NM | 1,173 | 117 | - |
| Skylake | Sautee-Nacoochee, GA | 1,173 | 13 | - |
| Paradise Lakes | Longwood, FL | 1,173 | 69 | - |
| Cal Am - West San Martin | Pacific Grove, CA | 1,173 | 27 | - |
| Medford | Medford, OK | 1,172 | 161 | - |
| Eureka Water Association | Courtland, MS | 1,172 | 273 | - |
| Divernon | Divernon, IL | 1,172 | 50 | - |
| Fairoaks PWS #44 | Stockton, CA | 1,172 | 1 | - |
| Blue Lake, City Of | Blue Lake, CA | 1,172 | 2 | Clean |
| Tonto Basin Water - Lr Gardens West | Payson, AZ | 1,172 | 356 | - |
| Camp Meeker Water System | Camp Meeker, CA | 1,171 | 0 | - |
| Barona North | Lakeside, 09 | 1,171 | 8 | - |
| Rupert Water | Rupert, WV | 1,170 | 25 | - |
| Ponderosa Community Club Inc | Leavenworth, WA | 1,170 | 38 | - |
| Harmony Isd | Big Sandy, TX | 1,170 | 54 | - |
| City of Orange Grove | Orange Grove, TX | 1,170 | 28 | - |
| Western Pines MHP | Orem, TX | 1,170 | 38 | Detected |
| Big Sandy Water Department | Big Sandy, TN | 1,170 | 11 | - |
| Wr/Lj - Creighton Project | Philip, SD | 1,170 | 0 | - |
| Bloomfield Boro Water Auth | New Bloomfield, PA | 1,170 | 193 | - |
| Penns Valley Area High School | Spring Mills, PA | 1,170 | 262 | - |
| Nevada Gold Mines Carlin Goldstrike Fcty | Elko, NV | 1,170 | 20 | - |
| Springer Water System | Springer, NM | 1,170 | 740 | Clean |
| Coontail Water Association | Pontotoc, MS | 1,170 | 265 | - |
| Howell Oregon 2 West | West Plains, MO | 1,170 | 0 | - |
| Beaverton | Beaverton, MI | 1,170 | 109 | - |
| Mechanicsburg-Buffalo Water Commission | Buffalo, IL | 1,170 | 80 | - |
| Crawford | Crawford, GA | 1,170 | 81 | - |
| Gw Santa Cruz Water - Maricopa SW | Maricopa, AZ | 1,170 | 2 | - |
| McKenzie Water Board | McKenzie, AL | 1,170 | 17 | - |
| Reptile Gardens Inc | Rapid City, SD | 1,169 | 12 | - |
| Camp Dodge Water Supply | Johnston, IA | 1,169 | 79 | - |
| F W Kent Park | Oxford, IA | 1,169 | 27 | - |
| Laupahoehoe-Kapehu | Hilo, HI | 1,169 | 8 | - |
| Fowler Town Of | Fowler, CO | 1,169 | 160 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).