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 |
| Days Inn | Fremont, OH | 37 | 49 | - |
| Fostoria Automotive Distribution Center | Bellevue, OH | 37 | 476 | - |
| Raymond House | Raymond, OH | 37 | 33 | - |
| Buckland United Church of Christ | Buckland, OH | 36 | 46 | - |
| Daystar Chrysler Dodge Jeep Ram | North Canton, OH | 36 | 1 | - |
| Metzenbaum Transportation Garage PWS | Chesterland, OH | 36 | 84 | - |
| Licking Rural Electric | Utica, OH | 36 | 31 | - |
| Ellsworth Township PWS | North Jackson, OH | 36 | 26 | - |
| Atwater Community Church of the Nazarene | Atwater, OH | 36 | 10 | - |
| Gilboa Quarry | Ottawa, OH | 36 | 32 | - |
| Scioto Water Inc.-Oakwood | Franklin Furnace, OH | 36 | 7 | - |
| Sharps Bar and Grill | Sidney, OH | 36 | 55 | - |
| Midwest Electric | Saint Marys, OH | 35 | 25 | - |
| Cozy Ridge Camp-Lower PWS | Norton, OH | 35 | 15 | - |
| Enon Eagles PWS | Springfield, OH | 35 | 25 | - |
| Schlabach Wood Design PWS | Baltic, OH | 35 | 170 | - |
| E and R Pub | Yorkshire, OH | 35 | 54 | - |
| Power Dam Express | Defiance, OH | 35 | 54 | - |
| Geneva Hills - Frontier Lodge | Lancaster, OH | 35 | 106 | - |
| Liberty Union VFW 3761 PWS | Baltimore, OH | 35 | 0 | - |
| Kirks Farm Market | Grove City, OH | 35 | 83 | - |
| River Walk/Iron Horse Saloon | Burton, OH | 35 | 123 | - |
| Middlefield Plastic Corp | Middlefield, OH | 35 | 274 | - |
| Creative Mold and Machine PWS | Newbury, OH | 35 | 560 | - |
| Sapore PWS | Chesterland, OH | 35 | 8 | - |
| Hemly Hardware PWS | Thompson, OH | 35 | 4 | - |
| Camp Berry [Bsa]-West Camp | Findlay, OH | 35 | 33 | - |
| United Conservation and Outdoor Assn | Findlay, OH | 35 | 22 | - |
| St Johns Lutheran Church-Dola | Kenton, OH | 35 | 62 | - |
| Ponderosa Estates PWS | Logan, OH | 35 | 146 | - |
| Redmen Lodge 81 PWS | South Bloomingville, OH | 35 | 21 | - |
| Camp Bethany-Main | Ashland, OH | 35 | 22 | - |
| The Pines | Quincy, OH | 35 | 52 | - |
| Midwest Express 2H PWS | East Liberty, OH | 35 | 4 | - |
| Cooley Canal Yacht Club-Marina | Northwood, OH | 35 | 78 | - |
| Oak Knoll Baptist Church | Marion, OH | 35 | 39 | - |
| A.b. Graham Memorial Center PWS | Conover, OH | 35 | 9 | - |
| Lost Creek Reserve Public Building | Troy, OH | 35 | 4 | - |
| The Landing at Cedar Ridge, LLC PWS | Frazeysburg, OH | 35 | 7 | - |
| Hidden Hideaway Campground East | Port Clinton, OH | 35 | 15 | - |
| Church of God-Brimfield | Kent, OH | 35 | 3 | - |
| Olde Schoolhouse Vineyard & Winery LLC | Eldorado, OH | 35 | 8 | - |
| Bible Walk Museum | Mansfield, OH | 35 | 3 | - |
| North Coast Orthopedics Surgery | Amherst, OH | 35 | 16 | - |
| Congress Lake Club-Maintenance | Hartville, OH | 35 | 19 | - |
| Zellers Amlc 1 PWS | Hartville, OH | 35 | 18 | - |
| Akron Yacht Club | Akron, OH | 35 | 74 | - |
| Fat Boys Pizza PWS | Wadsworth, OH | 35 | 10 | - |
| The Hudson Beauty Collective | Hudson, OH | 35 | 0 | - |
| Lamplighter Inn | Port Washington, OH | 35 | 45 | - |