| Ottawa River At University Of Toledo, Toledo, OH |
| Paint Creek At Chillicothe, OH |
| Paint Creek Near Bainbridge, OH |
| Paint Creek Near Bourneville, OH |
| Paint Creek Near Greenfield, OH |
| Portage River At Woodville, OH |
| Portage River Near Elmore, OH |
| Pymatuning Creek At Kinsman, OH |
| Raccoon Creek At Adamsville, OH |
| Raccoon Creek Bl. Wilson Street At Newark, OH |
| Raccoon Creek Near Bolins Mills, OH |
| Raccoon Creek Near Granville, OH |
| Rattlesnake Creek At Centerfield, OH |
| Riley Creek Below Pandora, OH |
| Rock Creek At Tiffin, OH |
| Rocky Fork Near Barretts Mills, OH |
| Rocky River Near Berea, OH |
| Salt Creek Near Chandlersville, OH |
| Sandusky River At Tiffin, OH |
| Sandusky River Near Bucyrus, OH |
| Sandusky River Near Fremont, OH |
| Sandusky River Near Upper Sandusky, OH |
| Sandy Creek At Waynesburg, OH |
| Schocalog Run At Copley Junction, OH |
| Scioto River At Chillicothe, OH |
| Scioto River At Circleville, OH |
| Scioto River At Columbus, OH |
| Scioto River At Higby, OH |
| Scioto River At La Rue, OH |
| Scioto River At Piketon, OH |
| Scioto River Below O'Shaughnessy Dam Near Dublin, OH |
| Scioto River Near Commercial Point, OH |
| Scioto River Near Prospect, OH |
| Seneca Fork Below Senecaville Dam Near Senecaville, OH |
| Sevenmile Creek At Camden, OH |
| Shade River Near Chester, OH |
| Sharon Creek At Sharonville, OH |
| Short Creek Near Dillonvale, OH |
| South Fork Licking River At Heath, OH |
| South Fork Licking River At Kirkersville, OH |
| South Fork Licking River Near Buckeye Lake, OH |
| South Fork Licking River Near Hebron, OH |
| Stillwater Creek At Piedmont, OH |
| Stillwater Creek At Tippecanoe, OH |
| Stillwater Creek At Uhrichsville, OH |
| Stillwater River At Englewood, OH |
| Stillwater River At Pleasant Hill, OH |
| St. Marys River At Rockford, OH |
| Sugar Creek At Strasburg, OH |
| Sugar Creek Below Beach City Dam Near Beach City, OH |
