| 2020-12-14 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2020-12-14 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2020-10-20 | MISSISSIPPI POWER COMPANY, CHEVRON COGENERATING PLANT | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-10-20 | MISSISSIPPI POWER COMPANY, CHEVRON COGENERATING PLANT | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-10-20 | MISSISSIPPI POWER COMPANY, CHEVRON COGENERATING PLANT | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-10-20 | MISSISSIPPI POWER COMPANY, CHEVRON COGENERATING PLANT | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-09-29 | MISSISSIPPI POWER COMPANY, CHEVRON COGENERATING PLANT | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-08-18 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2020-08-18 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2020-08-11 | JACKSON COUNTY BOARD OF SUPERVISORS, SINGING RIVER HEALTH SYSTEM — high-priority violation on file | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-08-11 | JACKSON COUNTY BOARD OF SUPERVISORS, SINGING RIVER HEALTH SYSTEM — high-priority violation on file | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-07-25 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2020-07-02 | CANTON MUNICIPAL UTILITIES — high-priority violation on file | CANTON, Madison, MS | Pass | State |
| 2020-06-24 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, SYLVARENA GENERATING PLA — high-priority violation on file | BAY SPRINGS, Smith, MS | Pass | State |
| 2020-06-24 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, SYLVARENA GENERATING PLA — high-priority violation on file | BAY SPRINGS, Smith, MS | Pass | State |
| 2020-06-24 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, SYLVARENA GENERATING PLA — high-priority violation on file | BAY SPRINGS, Smith, MS | Pass | State |
| 2020-06-08 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2020-06-08 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2020-03-30 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2020-03-19 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2020-03-19 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2020-01-15 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, BENNDALE PEAKING STATION — high-priority violation on file | BENNDALE, George, MS | Pass | State |
| 2020-01-15 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, BENNDALE PEAKING STATION — high-priority violation on file | BENNDALE, George, MS | Pass | State |
| 2020-01-15 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, BENNDALE PEAKING STATION — high-priority violation on file | BENNDALE, George, MS | Pass | State |
| 2020-01-15 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, BENNDALE PEAKING STATION — high-priority violation on file | BENNDALE, George, MS | Pass | State |
| 2020-01-14 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, BENNDALE PEAKING STATION — high-priority violation on file | BENNDALE, George, MS | Pass | State |
| 2020-01-14 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, BENNDALE PEAKING STATION — high-priority violation on file | BENNDALE, George, MS | Pass | State |
| 2020-01-14 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, BENNDALE PEAKING STATION — high-priority violation on file | BENNDALE, George, MS | Pass | State |
| 2020-01-14 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, BENNDALE PEAKING STATION — high-priority violation on file | BENNDALE, George, MS | Pass | State |