| 2018-12-14 | THE QUALITY CASTINGS COMPANY | Pass | State |
| 2018-12-14 | THE QUALITY CASTINGS COMPANY | Pass | State |
| 2018-12-14 | THE QUALITY CASTINGS COMPANY | Pass | State |
| 2018-12-14 | THE QUALITY CASTINGS COMPANY | Pass | State |
| 2018-12-14 | THE QUALITY CASTINGS COMPANY | Pass | State |
| 2018-12-14 | THE QUALITY CASTINGS COMPANY | Pass | State |
| 2018-12-14 | THE QUALITY CASTINGS COMPANY | Pass | State |
| 2018-12-14 | THE QUALITY CASTINGS COMPANY | Pass | State |
| 2018-12-04 | BEKAERT CORPORATION | Pass | State |
| 2018-12-04 | BEKAERT CORPORATION | Pass | State |
| 2018-11-29 | G&S BAR AND WIRE, LLC | Pass | State |
| 2018-11-20 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-11-20 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-10-19 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-10-19 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-10-19 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-10-19 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-10-19 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-10-19 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-10-11 | BUCKEYE BIOGAS, LLC | Pass | State |
| 2018-10-11 | BUCKEYE BIOGAS, LLC | Pass | State |
| 2018-10-11 | BUCKEYE BIOGAS, LLC | Pass | State |
| 2018-10-04 | DEPARTMENT OF PUBLIC UTILITIES, CITY OF ORRVILLE, OHIO | Pass | State |
| 2018-10-04 | DEPARTMENT OF PUBLIC UTILITIES, CITY OF ORRVILLE, OHIO | Pass | State |
| 2018-10-04 | DEPARTMENT OF PUBLIC UTILITIES, CITY OF ORRVILLE, OHIO | Pass | State |
| 2018-08-21 | SEAMAN CORPORATION | Pass | State |
| 2018-08-21 | SEAMAN CORPORATION | Pass | State |
| 2018-08-21 | SEAMAN CORPORATION | Pass | State |
| 2018-08-21 | SEAMAN CORPORATION | Pass | State |
| 2018-08-15 | BEKAERT CORPORATION | Pass | State |
| 2018-08-13 | BEKAERT CORPORATION | Pass | State |
| 2018-08-13 | BEKAERT CORPORATION | Pass | State |
| 2018-08-13 | BEKAERT CORPORATION | Pass | State |
| 2018-08-13 | BEKAERT CORPORATION | Pass | State |
| 2018-08-13 | BEKAERT CORPORATION | Pass | State |
| 2018-07-31 | ENBRIDGE GAS OHIO - PAINT | Pass | State |
| 2018-07-31 | ENBRIDGE GAS OHIO - PAINT | Pass | State |
| 2018-07-31 | ENBRIDGE GAS OHIO - PAINT | Pass | State |
| 2018-07-24 | A.R.E. ACCESSORIES, LLC - MOUNT EATON FACILITY — high-priority violation on file | Pass | State |
| 2018-07-24 | A.R.E. ACCESSORIES, LLC - MOUNT EATON FACILITY — high-priority violation on file | Pass | State |
| 2018-07-24 | A.R.E. ACCESSORIES, LLC - MOUNT EATON FACILITY — high-priority violation on file | Pass | State |
| 2018-07-24 | A.R.E. ACCESSORIES, LLC - MOUNT EATON FACILITY — high-priority violation on file | Pass | State |
| 2018-07-24 | A.R.E. ACCESSORIES, LLC - MOUNT EATON FACILITY — high-priority violation on file | Pass | State |
| 2018-07-24 | A.R.E. ACCESSORIES, LLC - MOUNT EATON FACILITY — high-priority violation on file | Pass | State |
| 2018-07-24 | A.R.E. ACCESSORIES, LLC - MOUNT EATON FACILITY — high-priority violation on file | Pass | State |
| 2018-07-24 | A.R.E. ACCESSORIES, LLC - MOUNT EATON FACILITY — high-priority violation on file | Pass | State |
| 2018-07-24 | A.R.E. ACCESSORIES, LLC - MOUNT EATON FACILITY — high-priority violation on file | Pass | State |
| 2018-07-09 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-07-09 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-07-09 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-07-09 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-07-09 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-07-09 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-07-09 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-07-09 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-06-12 | KOKOSING MATERIALS INC PLANT NO 517 | Pass | State |
| 2018-05-25 | ORRVILLE DIESEL GENERATING STATION | Pass | State |
| 2018-05-25 | ORRVILLE DIESEL GENERATING STATION | Pass | State |
| 2018-05-25 | ORRVILLE DIESEL GENERATING STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-05-16 | ENBRIDGE GAS OHIO - CHIPPEWA STATION | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-04-24 | ROVER PIPELINE - MAINLINE CS2 | Pass | State |
| 2018-02-22 | DEPARTMENT OF PUBLIC UTILITIES, CITY OF ORRVILLE, OHIO | Pass | State |