Public Water Systems
4,181 active public water systems in OH, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Midwest Express 2B Front PWS | East Liberty, OH | 50 | 8 | - |
| Buckeye at the Lake | Lakeview, OH | 50 | 53 | - |
| Stites PWS | Bellefontaine, OH | 50 | 18 | - |
| Lakeview Clark | Lakeview, OH | 50 | 43 | - |
| Pirates Cove at Indian Lake PWS | Russells Point, OH | 50 | 35 | - |
| The Rootbeer Stand at Indian Lake | Belle Center, OH | 50 | 12 | - |
| Bobber's Drive Thru & Deli PWS | Bellefontaine, OH | 50 | 32 | - |
| The Haven Lounge | Monclova, OH | 50 | 133 | - |
| Oak Openings - Springbrook Cmpgd | Toledo, OH | 50 | 95 | - |
| Lafayette United Methodist Church PWS | London, OH | 50 | 3 | - |
| Community Freewill Baptist Church | West Jefferson, OH | 50 | 122 | - |
| London Baptist Church | London, OH | 50 | 12 | - |
| Vaughn C. Darding, D.C. | West Jefferson, OH | 50 | 65 | - |
| Island Creek Homeowners | Beloit, OH | 50 | 82 | - |
| Shilling Mill Tavern | Berlin Center, OH | 50 | 109 | - |
| East Goshen Friends Church | Beloit, OH | 50 | 21 | - |
| Ellsworth Community Church | Salem, OH | 50 | 16 | - |
| High Pointe Assembly of God PWS | Lowellville, OH | 50 | 11 | - |
| North Benton Dairy Bar PWS | North Benton, OH | 50 | 20 | - |
| Elgin High School - Gym | Marion, OH | 50 | 176 | - |
| Enterprise Baptist Church | Marion, OH | 50 | 180 | - |
| Grand Prairie Farm Market | Marion, OH | 50 | 34 | - |
| Brunswick Hills MHP | Seattle, OH | 50 | 371 | - |
| Hinckley Hills Golf Course Inc.-Clubhous | Hinckley, OH | 50 | 19 | - |
| Family Tavern | Brunswick, OH | 50 | 72 | - |
| Styx Hill Crossing | Medina, OH | 50 | 4 | - |
| White Timbers | Tiffin, OH | 50 | 0 | - |
| Lock 24 RV Park | Racine, OH | 50 | 66 | - |
| Woodhaven MHP PWS | Celina, OH | 50 | 35 | - |
| Bayview Water Association | Celina, OH | 50 | 92 | - |
| St Pauls Country Church of Rockford | Celina, OH | 50 | 14 | - |
| Maria Stein Shrine | Maria Stein, OH | 50 | 87 | - |
| A and R Reck Mobile Home Park | Bradford, OH | 50 | 469 | - |
| Troy Fish and Game Club | Troy, OH | 50 | 18 | - |
| Ginghamsburg UMC South PWS | Tipp City, OH | 50 | 141 | - |
| Homestead Golf Course Restroom PWS | Tipp City, OH | 50 | 98 | - |
| Lake of the Woods 1 Hillbrook | Farmersville, OH | 50 | 45 | - |
| Lake of the Woods 2 Lake | Farmersville, OH | 50 | 72 | - |
| Temple Baptist Church Carlisle | Carlisle, OH | 50 | 353 | - |
| Tukens Orchard and Farm Market | West Alexandria, OH | 50 | 5 | - |
| Hidden Hideaway Campground West | Port Clinton, OH | 50 | 20 | - |
| Superior Made RV Resort | Swanton, OH | 50 | 113 | - |
| Roberts Trailer Park | Durham, OH | 50 | 79 | - |
| Tonys Coneys PWS | Grove City, OH | 50 | 36 | - |
| Hidden Valley Campground | Ravenna, OH | 50 | 20 | - |
| Paris Inn | Ravenna, OH | 50 | 5 | - |
| Randolph Fair 1 Office | Randolph, OH | 50 | 25 | - |
| Randolph Town Hall | Randolph, OH | 50 | 39 | - |
| Victory Baptist Temple | Brimfield, OH | 50 | 16 | - |
| Camp Asbury- Shaw | Hiram, OH | 50 | 48 | - |