- AKRON CANTON WSO AP (SUMMIT COUNTY, OH)
- ATHENS 1 N (ATHENS COUNTY, OH)
- BERLIN LAKE (PORTAGE COUNTY, OH)
- CAMBRIDGE (GUERNSEY COUNTY, OH)
- CHEVIOT (HAMILTON COUNTY, OH)
- CIRCLEVILLE (PICKAWAY COUNTY, OH)
- CLEVELAND WSFO AP (CUYAHOGA COUNTY, OH)
- COLUMBUS WSO AIRPORT (FRANKLIN COUNTY, OH)
- DAYTON WSO AIRPORT (MONTGOMERY COUNTY, OH)
- DEFIANCE (DEFIANCE COUNTY, OH)
- GRAND RAPIDS (WOOD COUNTY, OH)
- HILLSBORO (HIGHLAND COUNTY, OH)
- JACKSON 3 NW (JACKSON COUNTY, OH)
- MANSFIELD WSO AP (RICHLAND COUNTY, OH)
- MARION 2 N (MARION COUNTY, OH)
- MONTPELIER (WILLIAMS COUNTY, OH)
- MOSQUITO CREEK LAKE (TRUMBULL COUNTY, OH)
- NEW LEXINGTON 2 NW (PERRY COUNTY, OH)
- NEWPORT (WASHINGTON COUNTY, OH)
- NORWALK WWTP (HURON COUNTY, OH)
- PAULDING (PAULDING COUNTY, OH)
- PORTSMOUTH SCIOTOVILLE (SCIOTO COUNTY, OH)
- ST PARIS 2 NE (CHAMPAIGN COUNTY, OH)
- TOLEDO EXPRESS WSO AP (LUCAS COUNTY, OH)
- WAUSEON WATER PLANT (FULTON COUNTY, OH)
- WAVERLY (PIKE COUNTY, OH)
- WEST UNION 6 ENE (ADAMS COUNTY, OH)
- WILMINGTON 3 N (CLINTON COUNTY, OH)
- YOUNGSTOWN WSO AP (TRUMBULL COUNTY, OH)



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