Ohio Environmental Protection Agency (Ohio EPA)

Sycamore

Cincinnati, USA

G.T.Craig

Cleveland, USA

Cleveland Near Road

Warrensville Heights, USA

East High School

Akron, USA

Erie

Toledo, USA

Cincinnati Near Road

Cincinnati, USA

New Albany Station

New Albany, USA

Amanda Elem

Middletown, USA

Lebanon Station Station2

Lebanon, USA

St Theodosius

Cleveland, USA

Sinclair

Dayton, USA

Painesville - JFS

Painesville, USA

Batavia Station

Batavia, USA

Youngstown - Laird Ave.

Warren, USA

Lima Station

Lima, USA

Canton Station

Canton, USA

Columbus - Fairgrounds

Columbus, USA

Taft

Cincinnati, USA

Canton Fire St8

Canton, USA

Springfield PM

Springfield, USA

Chippewa Lake

Medina, USA

Colerain

Cleves, USA

Youngstown State

Youngstown, USA

Steubenville Station

Steubenville, USA

Preble County

New Paris, USA

Columbus NR - Smoky Row

Columbus, USA

Carthage

Elmwood Place, USA

Columbus - Maple Canyon Dr

Columbus, USA

Yankee Road

Middletown, USA

Middletown Station Station2

Middletown, USA

6th District

Cleveland, USA

Ironton - ODOT

Ironton, USA

Ohio Bell

Middletown, USA

Heath

Columbus, USA

Shadyside Station

Shadyside, USA

Lake Rockwell

Kent, USA

Lower Price Hill

Ludlow, USA

Bowling Green Station

Bowling Green, USA

BPG

Middletown, USA

Waterville Station

Waterville, USA

Trumbull County Sanitary Eng.

Youngstown-warren-boardman, USA

Xenia Station

Xenia, USA

Canton - Malone College

Canton, USA

Delaware Station

Delaware, USA

Alliance Station

Alliance, USA

Eastlake Station

Eastlake, USA

Portsmouth Water Treatment Plant

Portsmouth, USA

Kinsman

Andover, USA

Berea BOE

Berea, USA

Ohio DES

Reynoldsburg, USA