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 |
| Liberty Township Community Bldg PWS | Raymond, OH | 50 | 3 | - |
| Bluescreek Farm Meats | Marysville, OH | 50 | 7 | - |
| St Thomas Lutheran Church-Van Wert | Convoy, OH | 50 | 36 | - |
| Canaan Lutheran Church | Creston, OH | 50 | 57 | - |
| Djs Bar | Sterling, OH | 50 | 84 | - |
| Martins Mennonite Church | Orrville, OH | 50 | 20 | - |
| Salem Mennonite Church - Wooster | Orrville, OH | 50 | 74 | - |
| American Legion Post 68 | Wooster, OH | 50 | 91 | - |
| Sterling United Methodist Church PWS | Sterling, OH | 50 | 14 | - |
| Advanced Drainage Systems PWS | Wooster, OH | 50 | 49 | - |
| Quailcrest Farm PWS | Wooster, OH | 50 | 33 | - |
| Joy Baptist Church PWS | Orrville, OH | 50 | 46 | - |
| Rittman Orchards PWS | Doylestown, OH | 50 | 0 | - |
| Built-Rite Box & Crate | Wooster, OH | 50 | 0 | - |
| North Pine Estates | Constantine, OH | 50 | 234 | - |
| Northland Senior Community | Springville, OH | 50 | 81 | - |
| Victory Barn Church | Edgerton, OH | 50 | 21 | - |
| Pioneer Inn | Perrysburg, OH | 50 | 40 | - |
| Sandy Bobs LLC | Carey, OH | 50 | 59 | - |
| Vintage Oven PWS | Wharton, OH | 50 | 21 | - |
| Black Rock Campground-Camp A | Conneaut, OH | 49 | 44 | - |
| Black Rock Campground - Camp B | Conneaut, OH | 49 | 30 | - |
| Jackies Place PWS | Rossburg, OH | 49 | 31 | - |
| Highlands Comm Church/Christian Academy | Newark, OH | 49 | 82 | - |
| Hillcrest Estates Mobile Home Court | Ada, OH | 49 | 23 | - |
| Country Acres RV Resort LLC - South Side | Ravenna, OH | 49 | 20 | - |
| Vail Mine PWS | Kittanning, OH | 48 | 0 | - |
| Wiers Farm Amlc #04a (Bldg #01 & #02) Pw | Willard, OH | 48 | 44 | - |
| Country Hills MHP | Newark, OH | 48 | 56 | - |
| Lynd Fruit Farm-Migrant | Pataskala, OH | 48 | 29 | - |
| Red Roof Inn PWS | Hebron, OH | 48 | 17 | - |
| Scott RD Property LLC Amlc | Swanton, OH | 48 | 32 | - |
| Plumwood Mobile Home Park | Williamsport, OH | 48 | 62 | - |
| Brentwood Community MHP | Springville, OH | 48 | 47 | - |
| Portage Metro. Housing Authority | Ravenna, OH | 48 | 502 | - |
| Planet Earth Preschool, Inc PWS | Ravenna, OH | 48 | 20 | - |
| Walborn Reservoir Marina | Canton, OH | 48 | 30 | - |
| Flextur PWS | Dalton, OH | 48 | 0 | - |
| Grandview MHP B | Mount Vernon, OH | 47 | 2 | - |
| Dollar General #20078 - Mt Vernon | Goodlettsville, OH | 47 | 0 | - |
| King's Motel - East | Lowellville, OH | 47 | 80 | - |
| Country Inn Enhanced Living Center | Paulding, OH | 47 | 187 | - |
| Vel-A-Da Amlc 1 | Green Springs, OH | 47 | 19 | - |
| Saint Peregrine Chapel School PWS | Richfield, OH | 47 | 400 | - |
| Korda Manufacturing Inc | Conneaut, OH | 47 | 173 | - |
| Stony Ridge KOA Campgrd & Store | Perrysburg, OH | 47 | 63 | - |
| Carroll Hills Industries PWS | Carrollton, OH | 46 | 0 | - |
| Breezeway Mobile Manor | Columbiana, OH | 46 | 172 | - |
| Faith Fellowship - Minerva | Minerva, OH | 46 | 99 | - |
| Church of Christ - Salem | Salem, OH | 46 | 28 | - |