Ashland County-OF 109
Ashtabula County-OF 48
Athens County-OF 18

Belmont County-OF 39

Carroll County-OF 36
Columbiana County-OF 19
Coshocton County-OF 100
Crawford County-OF 51
Cuyahoga County-OF 103

Defiance County-OF 34 (Trenton or deeper wells)

Erie County-OF 20

Fairfield County-OF 106
Fulton County-OF 21 (Trenton or deeper wells)

Gallia County-OF 57
Geauga County-OF 22
Guernsey County-OF 23 ("Clinton" or deeper wells)

Hancock County-OF 38 (Trenton or deeper wells)
Harrison County-OF 24
Henry County-OF 45 (Trenton or deeper wells)
Hocking County-OF 110
Holmes County-OF 58
Huron County-OF 72

Jackson County-OF 71
Jefferson County-OF 44
Knox County-OF 249

Lake County-OF 56
Lawrence County-OF 75
Licking County-OF 270
Lorain County-OF 108
Lucas County-OF 60 (Trenton or deeper wells)

Mahoning County-OF 41
Medina County-OF 113
Meigs County-OF 61
Monroe County-OF 43
Morgan County-OF 25
Morrow County-OF 304 (Trenton or deeper wells) (available in color as OF 304C, $8.00)
Muskingum County-OF 54

Noble County-OF 26

Ottawa County-OF 35 (Trenton or deeper wells)

Perry County-OF 105
Pickaway County-OF 301
Pike County-OF 46
Portage County-OF 49

Richland County-OF 30
Ross County-OF 40

Sandusky County-OF 31 (Trenton or deeper wells)
Scioto County-OF 107
Seneca County-OF 32 (Trenton or deeper wells)
Stark County-OF 47
Summit County-OF 62

Trumbull County-OF 27
Tuscarawas County-OF 50

Vinton County-OF 104

Washington County-OF 33
Wayne County-OF 37
Williams County-OF 42 (Trenton or deeper wells)