Watershed(s): Adena Brook

Watershed(s): Mill Creek, Yellow Creek, Meander Creek

Watershed(s): Upper Little Miami and Lower Mad River

Watershed(s): Beaver Creek

Watershed(s): Black River

Watershed(s): West Branch of the Black River & French Creek

Watershed(s): Blanchard River, Lake Erie (Western Basin), Marie DeLarme Creek, Maumee River, Portage River, St. Joseph River, Sandusky Bay, Sandusky River

Watershed(s): Blanchard River

Watershed(s): Bokes Creek and Mill Creek

Watershed(s): Cuyahoga River

Watershed(s): Captina Creek

Watershed(s): Chagrin River Watershed

Watershed(s): Chicamauga Creek

Watershed(s): Chippewa Creek

Watershed(s): Maumee River, Swan Creek, Ottawa River, Duck Creek, Otter Creek, Grassy Creek, Silver Creek, Shantee Creek, Wolf Creek

Watershed(s): Little Miami River, Paint Creek

Watershed(s): Maumee River

Watershed(s): Cuyahoga River

Watershed(s): Cuyahoga River

Watershed(s): Cuyahoga River

Watershed(s): Darby Creek

Watershed(s): Darby Creek

Watershed(s): Doan Brook

Watershed(s): Duck Creek and Otter Creek (both in Maumee AOC)

Watershed(s): Duck Creek

Watershed(s): Sugar Creek

Watershed(s): Euclid Creek

Watershed(s): Federal Creek

Watershed(s): Old Woman Creek, Pipe Creek, Sawmill Creek, Mills Creek, Cranberry Creek, Plum Brook, Cold Creek, Chappel Creek, Sugar Creek

Watershed(s): Rocky River, Black River, Vermilion River, Old Woman Creek, and the Huron River Watersheds

Watershed(s): Flat Rock Creek

Watershed(s): Lower Alum Creek Watershed

Watershed(s): Arcola Creek

Watershed(s): Big Creek

Watershed(s): Big Walnut, Rocky Fork & Blacklick Creeks

Watershed(s): Blacklick Creek

Watershed(s): Conneaut Creek

Watershed(s): Cuyahoga

Watershed(s): Lower Muskingum (Philo to Marietta)

Watershed(s): Old Woman Creek

Watershed(s): Pipe Creek

Watershed(s): Scioto Brush Creek

Watershed(s): Lower Main Stem Great Miami River

Watershed(s): Hocking River

Watershed(s): Lower Olentangy

Watershed(s): Ravines in Franklin County

Watershed(s): Scioto River

Watershed(s): Yellow Creek

Watershed(s): Grand Lake & Wabash River

Watershed(s): Grand River

Watershed(s): Grand River Watershed

Watershed(s): Great Miami River in Montgomery County

Watershed(s): Little Miami, Mill Creek, Great Miami, and Ohio

Watershed(s): Hocking River Basin focusing on main stem riparian areas

Watershed(s): Honey Creek

Watershed(s): Mud Brook sub-watershed (Cuyahoga River watershed), Brandywine Creek and Tinkers Creek subwatersheds

Watershed(s): Huff Run

Watershed(s): Indian Lake

Watershed(s): Kellogg Creek

Watershed(s): Kokosing River Watershed

Watershed(s): Kyger Creek

Watershed(s): Lake Erie Islands

Watershed(s): Lake Erie

Watershed(s): Leading Creek

Watershed(s): Little Beaver Creek

Watershed(s): Little Miami

Watershed(s): Little Miami River

Watershed(s): Loramie Creek Watershed

Watershed(s): Lower Mad River

Watershed(s): Ten Mile Creek, Swan Creek, Duck & Otter Creeks, Lower Maumee River, Amlosch Creek, Cedar Creek, Wolf Creek

Watershed(s): Mahoning River

Watershed(s): Maumee Area of Concern, including the Lower Maumee River, Ottawa River, Swan Creek, Duck Creek and Otter Creek, Cedar, Crane, Turtle, and Packer Creeks, and the Toussaint River.

Watershed(s): Maumee River

Watershed(s): Maumee River

Watershed(s): Maumee River

Watershed(s): Maumee River

Watershed(s): Great Miami River Watershed

Watershed(s): Upper Great Miami River, Lost Creek, and Spring Creek

Watershed(s): Mill Creek

Watershed(s): Mill Creek Watershed

Watershed(s): Cuyahoga River

Watershed(s): Mill Creek Valley

Watershed(s): Mohican Watershed

Watershed(s): Monday Creek

Watershed(s): Moxahala Watershed

Watershed(s): Muskingum River Watershed

Watershed(s): Nimishillen Creek

Watershed(s): Nimishillen Creek, Tuscarawas River

Watershed(s):

Watershed(s): Sugar Creek

Watershed(s): Maumee River, Portage River, Maumee Bay, Western Lake Erie Basin

Watershed(s): Ashtabula River

Watershed(s):

Watershed(s): Olentangy

Watershed(s): Upper Olentangy River

Watershed(s): Ottawa River Watershed

Watershed(s): Ottawa River/Ten Mile Creek

Watershed(s): Owl Creek

Watershed(s): Lower Maumee River, Ottawa River, Swan Creek, Duck Creek and Otter Creek, Cedar, Crane, Turtle, and Packer Creeks, and the Toussaint River.

Watershed(s): Pymatuning/Shenango

Watershed(s): Cuyahoga River

Watershed(s): Portage River, Rocky Ford Creek, Needles Creek, Rader Creek, Bull Creek, Sugar Creek, Little Portage River, Wolf Creek, Lacarpe Creek

Watershed(s): Pymatuning Lake

Watershed(s): Raccoon Creek

Watershed(s): Rocky Fork Creek

Watershed(s): Rocky River

Watershed(s): Salt Creek

Watershed(s): Sandusky River

Watershed(s): Sandusky River/Sandusky Bay

Watershed(s): Sandusky River

Watershed(s): Salt Creek

Watershed(s): Scioto

Watershed(s): St. Joseph

Watershed(s): Stillwater

Watershed(s): Stillwater River

Watershed(s): Sugar Creek/Portage River

Watershed(s): Sunday Creek

Watershed(s): Stillwater & Greenville Creek, Little Miami

Watershed(s): Symmes Creek

Watershed(s): Four Mile, Seven Mile, Twin, and Indian Creek Valleys

Watershed(s): Tinkers Creek

Watershed(s): Tinkers Creek

Watershed(s): Tuscarawas River

Watershed(s): Twin Creek

Watershed(s): Big Walnut Creek

Watershed(s): State of Ohio Designated Scenic Upper Cuyahoga River

Watershed(s): Upper Cuyahoga River

Watershed(s): Upper Great Miami River

Watershed(s): Caesar Creek, Little Miami

Watershed(s): Scioto

Watershed(s): Upper Sugar Creek

Watershed(s): Walnut Creek

Watershed(s): West Creek-Cuyahoga River

Watershed(s): Western Lake Erie, Maumee Bay & River, Sandusky Bay & River, River Raisin

Watershed(s): White Oak Creek

Watershed(s): Yellow Creek