EPA Air · stack tests by state and year
Air-emissions stack tests in Mississippi, 2025
- 688Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Mississippi during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Mississippi, 2025
- Madison County 67
- Lowndes County 58
- Hinds County 55
- Jackson County 47
- Monroe County 47
- Lawrence County 41
- Perry County 26
- Lee County 25
- Smith County 25
- Harrison County 20
- Wayne County 20
- Choctaw County 19
- Jones County 19
- Simpson County 18
- Yazoo County 17
- Warren County 15
- Grenada County 14
- DeSoto County 13
- Noxubee County 12
- Covington County 11
- Panola County 11
- Forrest County 11
- Stone County 10
- Clarke County 10
- Jasper County 8
- Jefferson Davis County 7
- Copiah County 6
- George County 6
- Greene County 6
- Lamar County 5
- Alcorn County 4
- Humphreys County 4
- Washington County 4
- Scott County 4
- Kemper County 4
- Union County 4
- Hancock County 3
- Marshall County 3
- Walthall County 3
- Pontotoc County 3
- Lauderdale County 3
Mississippi, other years
Air-emissions stack tests recorded in Mississippi, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-05-21 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-21 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-21 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-21 | NISSAN NORTH AMERICA INC, CANTON MANUFACTURING FACILITY | CANTON, Madison, MS | Pass | State |
| 2025-05-20 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2025-05-20 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2025-05-20 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-20 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-20 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-20 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-20 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-20 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-20 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-20 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-20 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-05-20 | NISSAN NORTH AMERICA INC, CANTON MANUFACTURING FACILITY | CANTON, Madison, MS | Pass | State |
| 2025-05-15 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2025-05-15 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2025-05-14 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-14 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-14 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-14 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-14 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-13 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-13 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-13 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-13 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-13 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-13 | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION | FRENCH CAMP, Choctaw, MS | Pass | State |
| 2025-05-13 | GEORGIA PACIFIC WOOD PRODUCTS LLC, TAYLORSVILLE | TAYLORSVILLE, Smith, MS | Pass | State |
| 2025-05-13 | GEORGIA PACIFIC WOOD PRODUCTS LLC, TAYLORSVILLE | TAYLORSVILLE, Smith, MS | Pass | State |
| 2025-05-13 | GEORGIA PACIFIC WOOD PRODUCTS LLC, TAYLORSVILLE | TAYLORSVILLE, Smith, MS | Pass | State |
| 2025-05-13 | GEORGIA PACIFIC WOOD PRODUCTS LLC, TAYLORSVILLE | TAYLORSVILLE, Smith, MS | Pass | State |
| 2025-05-08 | CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY | PASCAGOULA, Jackson, MS | Pass | State |
| 2025-05-08 | CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY | PASCAGOULA, Jackson, MS | Pass | State |
| 2025-05-07 | COLUMBIA GULF TRANSMISSION LLC, HOLCOMB COMPRESSOR STATION | HOLCOMB, Grenada, MS | Pass | State |
| 2025-05-07 | COLUMBIA GULF TRANSMISSION LLC, HOLCOMB COMPRESSOR STATION | HOLCOMB, Grenada, MS | Pass | State |
| 2025-05-07 | COLUMBIA GULF TRANSMISSION LLC, HOLCOMB COMPRESSOR STATION | HOLCOMB, Grenada, MS | Pass | State |
| 2025-05-07 | COLUMBIA GULF TRANSMISSION LLC, HOLCOMB COMPRESSOR STATION | HOLCOMB, Grenada, MS | Pass | State |
| 2025-05-07 | INTERNATIONAL PAPER COMPANY, VICKSBURG MILL | REDWOOD, Warren, MS | Pass | State |
| 2025-05-07 | INTERNATIONAL PAPER COMPANY, VICKSBURG MILL | REDWOOD, Warren, MS | Pass | State |
| 2025-05-07 | INTERNATIONAL PAPER COMPANY, VICKSBURG MILL | REDWOOD, Warren, MS | Pass | State |
| 2025-05-06 | CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY | PASCAGOULA, Jackson, MS | Pass | State |
| 2025-05-06 | COLUMBIA GULF TRANSMISSION LLC, NEW ALBANY COMPRESSOR STATION | NEW ALBANY, Union, MS | Pass | State |
| 2025-05-06 | COLUMBIA GULF TRANSMISSION LLC, NEW ALBANY COMPRESSOR STATION | NEW ALBANY, Union, MS | Pass | State |
| 2025-05-06 | COLUMBIA GULF TRANSMISSION LLC, NEW ALBANY COMPRESSOR STATION | NEW ALBANY, Union, MS | Pass | State |
| 2025-05-06 | COLUMBIA GULF TRANSMISSION LLC, NEW ALBANY COMPRESSOR STATION | NEW ALBANY, Union, MS | Pass | State |
| 2025-05-06 | INTERNATIONAL PAPER COMPANY, VICKSBURG MILL | REDWOOD, Warren, MS | Pass | State |
| 2025-05-06 | INTERNATIONAL PAPER COMPANY, VICKSBURG MILL | REDWOOD, Warren, MS | Pass | State |
| 2025-04-30 | TRANSCONTINENTAL GAS PIPELINE COMPANY LLC, STATION 70 | TYLERTOWN, Walthall, MS | Pass | State |
| 2025-04-29 | ZEON CHEMICALS LP | HATTIESBURG, Forrest, MS | Pass | State |
| 2025-04-29 | ZEON CHEMICALS LP | HATTIESBURG, Forrest, MS | Pass | State |
| 2025-04-29 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, COMPRESSOR STATION 80 | HEIDELBERG, Jones, MS | Pass | State |
| 2025-04-29 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, COMPRESSOR STATION 80 | HEIDELBERG, Jones, MS | Pass | State |
| 2025-04-29 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, COMPRESSOR STATION 80 | HEIDELBERG, Jones, MS | Pass | State |
| 2025-04-28 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, COMPRESSOR STATION 80 | HEIDELBERG, Jones, MS | Pass | State |
| 2025-04-28 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, COMPRESSOR STATION 80 | HEIDELBERG, Jones, MS | Pass | State |
| 2025-04-28 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2025-04-25 | GEORGIA PACIFIC MONTICELLO LLC | MONTICELLO, Lawrence, MS | Pass | State |
| 2025-04-25 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-25 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-25 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-25 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-25 | GULF SOUTH PIPELINE COMPANY LLC, MCCOMB COMPRESSOR STATION | JAYESS, Walthall, MS | Pass | State |
| 2025-04-25 | GULF SOUTH PIPELINE COMPANY LLC, MCCOMB COMPRESSOR STATION | JAYESS, Walthall, MS | Pass | State |
| 2025-04-23 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2025-04-23 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2025-04-23 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2025-04-23 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-22 | KINGSFORD MANUFACTURING COMPANY | GLEN, Alcorn, MS | Pass | State |
| 2025-04-22 | KINGSFORD MANUFACTURING COMPANY | GLEN, Alcorn, MS | Pass | State |
| 2025-04-22 | KINGSFORD MANUFACTURING COMPANY | GLEN, Alcorn, MS | Pass | State |
| 2025-04-22 | KINGSFORD MANUFACTURING COMPANY | GLEN, Alcorn, MS | Pass | State |
| 2025-04-22 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2025-04-22 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2025-04-22 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2025-04-22 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-20 | HOOD INDUSTRIES INC, WIGGINS PLYWOOD PLANT | WIGGINS, Stone, MS | Pass | State |
| 2025-04-18 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-18 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-18 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-18 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-18 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-15 | MASONITE CORPORATION — high-priority violation on file | LAUREL, Jones, MS | Pass | State |
| 2025-04-15 | MASONITE CORPORATION — high-priority violation on file | LAUREL, Jones, MS | Fail | State |
| 2025-04-10 | HOOD INDUSTRIES INC, WIGGINS PLYWOOD PLANT | WIGGINS, Stone, MS | Pass | State |
| 2025-04-10 | HOOD INDUSTRIES INC, WIGGINS PLYWOOD PLANT | WIGGINS, Stone, MS | Pass | State |
| 2025-04-10 | HOOD INDUSTRIES INC, WIGGINS PLYWOOD PLANT | WIGGINS, Stone, MS | Pass | State |
| 2025-04-09 | CHEVRON USA, INC, DBA CHEVRON PRODUCTS COMPANY, COLLINS TERMINAL | COLLINS, Covington, MS | Pass | State |
| 2025-04-09 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2025-04-09 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2025-04-09 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2025-04-09 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2025-04-09 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-09 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-09 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-09 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-09 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-09 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2025-04-09 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.