| 2020-11-12 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-11-10 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-11-10 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-11-10 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-11-10 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-11-05 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-10-07 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-07 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-07 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-07 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-06 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-06 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-06 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-06 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-06 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-06 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-05 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-05 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-10-05 | CALEDONIA ENERGY PARTNERS LLC, CALEDONIA GAS STORAGE FACILITY | Pass | State |
| 2020-07-29 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-29 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-28 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-28 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-28 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-28 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-08 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-08 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-07 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-07 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-07-06 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-04-28 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-04-28 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-04-27 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-04-09 | GCF US HOLDINGS LLC, COLUMBUS MODIFIED FIBER PLANT | Pass | State |
| 2020-04-09 | GCF US HOLDINGS LLC, COLUMBUS MODIFIED FIBER PLANT | Pass | State |
| 2020-03-11 | STEEL DYNAMICS COLUMBUS, LLC | Pass | State |
| 2020-03-11 | STEEL DYNAMICS COLUMBUS, LLC | Pass | State |
| 2020-03-11 | STEEL DYNAMICS COLUMBUS, LLC | Pass | State |
| 2020-03-11 | STEEL DYNAMICS COLUMBUS, LLC | Pass | State |
| 2020-03-10 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | Pass | State |
| 2020-03-09 | STEEL DYNAMICS COLUMBUS, LLC | Pass | State |
| 2020-03-09 | STEEL DYNAMICS COLUMBUS, LLC | Pass | State |
| 2020-03-09 | STEEL DYNAMICS COLUMBUS, LLC | Pass | State |
| 2020-03-09 | STEEL DYNAMICS COLUMBUS, LLC | Pass | State |