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 |
| Cedar Grove Church | New Paris, OH | 125 | 18 | - |
| Eagles Landing Farm and Venue | Greenville, OH | 125 | 0 | - |
| Brown Barn LLC | Chardon, OH | 125 | 60 | - |
| Camp Berry [Bsa]-Central Area | Findlay, OH | 125 | 67 | - |
| Circle P Reception Hall | Findlay, OH | 125 | 0 | - |
| Harrison Hills Pentecostal Church | Jewett, OH | 125 | 28 | - |
| Goshen Friends Church | Zanesfield, OH | 125 | 69 | - |
| Nx Automotive Logistics Bldg 2 PWS | East Liberty, OH | 125 | 2 | - |
| River Run Harbor PWS | Lewistown, OH | 125 | 0 | - |
| New White Swan Restaurant | Prospect, OH | 125 | 47 | - |
| Salem Church of the Brethren PWS | Englewood, OH | 125 | 89 | - |
| Fair Valley Country Club | Dayton, OH | 125 | 115 | - |
| Dayton VA Bldg 410 | Dayton, OH | 125 | 11 | Detected |
| Sunny Hills Golf and Recreation | Kent, OH | 125 | 39 | - |
| Suffield Fellowship Church | Suffield, OH | 125 | 18 | - |
| Johnson Farm | Mentor, OH | 125 | 31 | - |
| Crossroads Community Church-Ravenna | Ravenna, OH | 125 | 58 | - |
| Lake Maria Campground | Lexington, OH | 125 | 14 | - |
| JR Properties of Mansfield - SR 430 | Mansfield, OH | 125 | 29 | - |
| Heart of Ohio Athletics | Bellville, OH | 125 | 0 | - |
| Eci Inc Corporate Office | Tiffin, OH | 125 | 51 | - |
| Mohawk Golf and Country Club | Tiffin, OH | 125 | 17 | - |
| Lincoln Square Apartments | Kent, OH | 125 | 81 | - |
| Bear Creek Campground | East Sparta, OH | 125 | 59 | - |
| Ironrock Capital-Plant | Canton, OH | 125 | 12 | - |
| Wils Grille and Pub | Barberton, OH | 125 | 151 | - |
| Clutch Lanes | Cuyahoga Falls, OH | 125 | 13 | - |
| Dover Bible Church | Dover, OH | 125 | 23 | - |
| Winfield Community Church PWS | Dover, OH | 125 | 47 | - |
| Cranston's Pub | Doylestown, OH | 125 | 4 | - |
| Bishop's Restaurant PWS | Wooster, OH | 125 | 12 | - |
| Deer Creek Golf Course | Hubbard, OH | 124 | 253 | - |
| Blue Bell Beach PWS | Cleves, OH | 123 | 112 | - |
| Aqua Ohio - Mansfield System #05 | Massillon, OH | 123 | 34 | - |
| Hechts Landing - MHP | Celina, OH | 122 | 9 | - |
| Beechwood Island Estates | Kent, OH | 122 | 51 | - |
| Meadow Creek Condo Assoc | Kent, OH | 122 | 15 | - |
| Thunderbird Terrace MHP | Austin, OH | 122 | 52 | - |
| Beech Mennonite Church | Louisville, OH | 122 | 22 | - |
| Ashland Dickey Church of the Brethren | Ashland, OH | 120 | 6 | - |
| Wagon Trails Res - South Well | Jefferson, OH | 120 | 71 | - |
| Cherry Valley Furniture | Andover, OH | 120 | 0 | - |
| Grandview Heights Civic Association PWS | Saint Paris, OH | 120 | 138 | - |
| Kingdom Hall Jehovah Witnesses of Urbana | Urbana, OH | 120 | 12 | - |
| Lighthouse Tabernacle Ch-Champaign PWS | Springfield, OH | 120 | 39 | - |
| Woodbury Apartments PWS | Dayton, OH | 120 | 1,407 | - |
| Rocky Lakes Golf Course PWS | Springfield, OH | 120 | 64 | - |
| Y-Inn | Rogers, OH | 120 | 293 | - |
| W Branch Athletic Booster Club | Beloit, OH | 120 | 108 | - |
| Lake Lila | Newcomerstown, OH | 120 | 35 | - |