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 |
|---|---|---|---|---|
| First Church | Wheatfield, IN | 718 | 125 | - |
| Deer Flat Lds Church | Nampa, ID | 718 | 2 | - |
| Hospers Municipal Water Dept | Hospers, IA | 718 | 29 | - |
| Brush Creek Ranch | Saratoga, WY | 717 | 100 | - |
| Covington Water Works | Covington, TX | 717 | 113 | - |
| Harris County Improvement District 14 | Houston, TX | 717 | 0 | - |
| Sylvester McCaulley WSC | Hamlin, TX | 717 | 112 | - |
| Elgin, City Of | Elgin, NE | 717 | 79 | - |
| Fairfield Township | Jasper, MI | 717 | 3 | - |
| Frankfort, City Of | Frankfort, KS | 717 | 20 | - |
| Merrill Municipal Water Supply | Merrill, IA | 717 | 291 | - |
| Interlachen Lake Estates | Longwood, FL | 717 | 37 | - |
| Sun Cove Public Water System | Cashmere, WA | 716 | 20 | - |
| Southhills Southwoods SD | Cary, NC | 716 | 181 | - |
| Westmoreland, City Of | Westmoreland, KS | 716 | 15 | - |
| Ventura Water Works | Ventura, IA | 716 | 10 | - |
| Paauilo | Hilo, HI | 716 | 0 | - |
| Cws - Tulco Water Company | San Jose, CA | 716 | 10 | - |
| Sevastopol High Sch | Sturgeon Bay, WI | 715 | 21 | - |
| Caseys General Store #3793 | Ankeny, WI | 715 | 0 | - |
| Jarrell Cove State Park | Belfair, WA | 715 | 21 | - |
| W Stclair Pleasantville Muni | Alum Bank, PA | 715 | 211 | - |
| Six Nineteen Marathon | Massillon, OH | 715 | 61 | - |
| Aqua Ohio - Tomahawk Utilities | Struthers, OH | 715 | 18 | - |
| Owego WD #1 | Apalachin, NY | 715 | 0 | - |
| Crystal NTUA | Ft Defiance, NN | 715 | 61 | - |
| Indian Hills Water System | Elephant Butte, NM | 715 | 169 | - |
| Swedesboro Shell Exit 2 Plaza | Anaheim, NJ | 715 | 6 | - |
| Dunkin Donuts | Glendora, NJ | 715 | 0 | - |
| Steele City Of | Steele, ND | 715 | 14 | - |
| North Star PUD | Helena, MT | 715 | 100 | - |
| Hardin Westbound Rest Area | Billings, MT | 715 | 33 | - |
| Cumberland Water Assn | Maben, MS | 715 | 321 | - |
| North Hinds W/a #5-Limekiln | Flora, MS | 715 | 279 | - |
| Mabel | Mabel, MN | 715 | 23 | Clean |
| Key Heights Mobile Village | West Bloomfield, MI | 715 | 23 | - |
| Hunting Quarters | California, MD | 715 | 6 | - |
| Caseys #3449 | Muscatine, IA | 715 | 50 | - |
| Equistar Chemicals LP | Clinton, IA | 715 | 44 | - |
| Alcovy Shores Water Authority | Monticello, GA | 715 | 63 | - |
| Grays Subdivision | Savannah, GA | 715 | 12 | - |
| Mansfield Middle School | Mansfield, CT | 715 | 38 | - |
| Lake Garda School | Burlington, CT | 715 | 27 | - |
| Colorado Mtn College Svc | Glenwood Springs, CO | 715 | 31 | - |
| Berryessa Highlands | Napa, CA | 715 | 59 | - |
| Coso Junction Ranch Store | Inyokern, CA | 715 | 16 | - |
| Salesville Community Water Association | Salesville, AR | 715 | 16 | Clean |
| Walsh Ranch MUD | Round Rock, TX | 714 | 4 | - |
| Estates of Willow Creek | Austin, TX | 714 | 4 | - |
| Plumstead Twp Durham Ridge | Pipersville, PA | 714 | 573 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).