| Chardon Local School District |
| Fairport Harbor Exempted Village School District |
| Kirtland Local School District |
| Madison Local School District |
| Mentor Public Schools |
| Painesville City Local School District |
| Perry Local School District |
| Riverside Local School District |
| Wickliffe City School District |
| Willoughby-Eastlake City School District |
| "Wild" Designated Grand River (upstream of SR-84) |
| Arcola Creek (0.20 Subwatershed) |
| Arcola Creek (4.45 Subwatershed) |
| Arcola Creek (4.98 Subwatershed) |
| Arcola Creek (7.78 Subwatershed) |
| Arcola Creek (Dock Road Corridor) |
| Arcola Creek (McMackin Creek) |
| Arcola Creek (Route 20 Corridor) |
| Arcola Creek Headwaters |
| Arcola Creek Middle Section |
| Aylworth Creek |
| Bates Creek |
| Big Creek Watershed (no subwatersheds) |
| Blackbrook Creek |
| Caves Creek |
| Chagrin River (downstream of East Branch) |
| Chagrin River (upstream of East Branch) |
| Church Creek |
| Corporation Ditch |
| East Branch of the Chagrin River |
| East Creek |
| Ellison Creek |
| Euclid Creek |
| Gordon Creek |
| Grand River (downstream of SR-84) |
| Griswold Creek |
| Gully Brook |
| Hiesley Creek |
| Kellogg Creek |
| Lake Erie Direct (Arcola Creek to Church Creek) |
| Lake Erie Direct (Chagrin River to Euclid Creek) |
| Lake Erie Direct (Church Creek to Red Mill Creek) |
| Lake Erie Direct (Grand River to Mentor Marsh) |
| Lake Erie Direct (McKinley Creek to Grand River) |
| Lake Erie Direct (Mentor Marsh to Chagrin River) |
| Lake Erie Direct (Red Mill Creek to McKinley Creek) |
| Lake Erie Direct (Wheeler Creek to Arcola Creek) |
| Marsh Creek |
| Martin Ohm Creek |
| McKinley Creek |
| Mentor Marsh Watershed |
| Mill Creek |
| Paine Creek |
| Phelps Creek |
| Piersons Creek |
| Quarry Creek |
| Red Creek |
| Red Mill Creek |
| Rodstrom Creek |
| Stoney Brook |
| Talcott Creek |
| Tiber Creek |
| Unnamed Tributary to Grand River (03-001-21.06-1 III) |
| Unnamed Tributary to Grand River (03-032) |
| Unnamed Tributary to Grand River (03-033) |
| Ward Creek |
