|   | "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 |