EPA Air · stack tests by state and year
Air-emissions stack tests in Missouri, 2025
- 768Stack 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 Missouri 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 Missouri, 2025
- Johnson County 112
- Buchanan County 101
- Jefferson County 69
- Undetermined County 62
- Pettis County 42
- Dent County 24
- Shannon County 23
- Iron County 23
- Greene County 22
- Andrew County 21
- Bates County 20
- Ste. Genevieve County 19
- Hickory County 16
- Ray County 16
- Jasper County 16
- Henry County 16
- Jackson County 14
- Cass County 14
- Stoddard County 12
- St. Louis County 8
- St. Charles County 8
- St. Louis (city) County 7
- Cape Girardeau County 7
- Franklin County 7
- Knox County 6
- Randolph County 6
- Vernon County 6
- Cole County 6
- Washington County 6
- Boone County 5
- Lincoln County 5
- Clay County 5
- New Madrid County 4
- Chariton County 4
- Ralls County 3
- Madison County 3
- Lafayette County 3
- Pike County 3
- Maries County 3
- Barry County 3
Missouri, other years
Air-emissions stack tests recorded in Missouri, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-11-21 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-11-21 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-11-21 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-11-21 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-11-21 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-11-21 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-11-21 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-11-21 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-11-21 | KINDER MORGAN | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2025-11-19 | AMERESCO JEFFERSON CITY LLC | JEFFERSON CITY, Cole, MO | Pass | State |
| 2025-11-19 | AMERESCO JEFFERSON CITY LLC | JEFFERSON CITY, Cole, MO | Pass | State |
| 2025-11-19 | METROPOLITAN ST. LOUIS SEWER DISTRICT BISSELL POINT WWTP | SAINT LOUIS, St. Louis (city), MO | Pending | State |
| 2025-11-13 | KINGSFORD MANUFACTURING COMPANY | BELLE, Maries, MO | Pass | State |
| 2025-11-13 | KINGSFORD MANUFACTURING COMPANY | BELLE, Maries, MO | Pass | State |
| 2025-11-13 | KINGSFORD MANUFACTURING COMPANY | BELLE, Maries, MO | Pass | State |
| 2025-11-12 | CENTRAL STONE TRAUTMAN QUARRY CS-74 | PEVELY, Jefferson, MO | Pass | State |
| 2025-11-12 | CENTRAL STONE TRAUTMAN QUARRY CS-74 | PEVELY, Jefferson, MO | Pass | State |
| 2025-11-12 | THOMAS HILL ENERGY CENTER - POWER DIVISION | CLIFTON HILL, Randolph, MO | Pass | State |
| 2025-11-11 | ARCHER DANIELS MIDLAND CO/MID-AMERICA BIOFUELS LLC | MEXICO, Audrain, MO | Fail | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-06 | RAY COUNTY STONE (PORT-0933) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-11-03 | ANHEUSER BUSCH, LLC, ST.LOUIS BREWERY | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2025-10-31 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2025-10-31 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2025-10-30 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2025-10-30 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-10-30 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-10-30 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-10-30 | URSA FARMERS COOPERATIVE | WAYLAND, Clark, MO | Pass | State |
| 2025-10-30 | URSA FARMERS COOPERATIVE | WAYLAND, Clark, MO | Pass | State |
| 2025-10-30 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2025-10-30 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2025-10-30 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2025-10-30 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2025-10-30 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2025-10-30 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2025-10-30 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2025-10-30 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2025-10-30 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2025-10-30 | 3M NEVADA-COMMERCIAL GRAPHICS | NEVADA, Vernon, MO | Pass | State |
| 2025-10-30 | 3M NEVADA-COMMERCIAL GRAPHICS | NEVADA, Vernon, MO | Pass | State |
| 2025-10-30 | 3M NEVADA-COMMERCIAL GRAPHICS | NEVADA, Vernon, MO | Pass | State |
| 2025-10-30 | 3M NEVADA-COMMERCIAL GRAPHICS | NEVADA, Vernon, MO | Pass | State |
| 2025-10-30 | 3M NEVADA-COMMERCIAL GRAPHICS | NEVADA, Vernon, MO | Pass | State |
| 2025-10-30 | 3M NEVADA-COMMERCIAL GRAPHICS | NEVADA, Vernon, MO | Pass | State |
| 2025-10-30 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2025-10-30 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2025-10-30 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2025-10-30 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2025-10-30 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2025-10-30 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2025-10-29 | FREDERICKTOWN ENERGY CENTER | FREDERICKTOWN, Madison, MO | N/A | State |
| 2025-10-29 | FREDERICKTOWN ENERGY CENTER | FREDERICKTOWN, Madison, MO | Pass | State |
| 2025-10-29 | FREDERICKTOWN ENERGY CENTER | FREDERICKTOWN, Madison, MO | Pass | State |
| 2025-10-28 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Pass | State |
| 2025-10-28 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Pass | State |
| 2025-10-28 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Pass | State |
| 2025-10-28 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Pass | State |
| 2025-10-24 | AMRIZE CEMENT INC | BLOOMSDALE, Ste. Genevieve, MO | Pending | State |
| 2025-10-24 | AMRIZE CEMENT INC | BLOOMSDALE, Ste. Genevieve, MO | Pass | State |
| 2025-10-24 | AMRIZE CEMENT INC | BLOOMSDALE, Ste. Genevieve, MO | Pass | State |
| 2025-10-24 | AMRIZE CEMENT INC | BLOOMSDALE, Ste. Genevieve, MO | N/A | State |
| 2025-10-24 | AMRIZE CEMENT INC | BLOOMSDALE, Ste. Genevieve, MO | Pass | State |
| 2025-10-22 | RIVER CEMENT CO. DBA BUZZI UNICEM USA SELMA PLANT | FESTUS, Jefferson, MO | Pass | State |
| 2025-10-22 | RIVER CEMENT CO. DBA BUZZI UNICEM USA SELMA PLANT | FESTUS, Jefferson, MO | Pass | State |
| 2025-10-22 | RIVER CEMENT CO. DBA BUZZI UNICEM USA SELMA PLANT | FESTUS, Jefferson, MO | Pass | State |
| 2025-10-22 | RIVER CEMENT CO. DBA BUZZI UNICEM USA SELMA PLANT | FESTUS, Jefferson, MO | Pass | State |
| 2025-10-15 | UNIVERSITY OF MISSOURI POWER PLANT | COLUMBIA, Boone, MO | N/A | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-10-14 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.