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 |
|---|---|---|---|---|
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Fail | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-07-23 | QC, LLC, A VERDESIAN LIFE SCIENCES COMPANY | CAPE GIRARDEAU, Cape Girardeau, MO | Pass | State |
| 2025-07-23 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Pass | State |
| 2025-07-23 | CENTRAL MISSOURI RENEWABLE NATURAL GAS LLC | SEDALIA, Pettis, MO | Pass | State |
| 2025-07-23 | CENTRAL MISSOURI RENEWABLE NATURAL GAS LLC | SEDALIA, Pettis, MO | Pass | State |
| 2025-07-21 | UNIVERSITY OF MISSOURI POWER PLANT | COLUMBIA, Boone, MO | Pass | State |
| 2025-07-15 | AMERESCO JEFFERSON CITY LLC | JEFFERSON CITY, Cole, MO | Pass | State |
| 2025-07-15 | AMERESCO JEFFERSON CITY LLC | JEFFERSON CITY, Cole, MO | Pass | State |
| 2025-07-15 | AMERESCO JEFFERSON CITY LLC | JEFFERSON CITY, Cole, MO | Pass | State |
| 2025-07-15 | STRYTEN KCMO LLC | KANSAS CITY, Platte, MO | Pass | State |
| 2025-07-09 | EFCO CORPORATION | MONETT, Barry, MO | Pass | State |
| 2025-07-09 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | Pass | State |
| 2025-07-09 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | Pass | State |
| 2025-07-08 | MISSOURI ASPHALT PRODUCTS | BRIDGETON, St. Louis, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-03 | THOMAS CRUSHING LLC (PORT-0929) | PORTABLE, Undetermined, MO | Pass | State |
| 2025-07-02 | PARKER HANNIFIN CORPORATION | LEES SUMMIT, Jackson, MO | Pass | State |
| 2025-07-01 | BLEVINS ASPHALT - CARTHAGE | CARTHAGE, Jasper, MO | Pass | State |
| 2025-06-27 | THOMAS HILL ENERGY CENTER - POWER DIVISION | CLIFTON HILL, Randolph, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-25 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-06-23 | VISION RNG | BOWLING GREEN, Pike, MO | Pass | State |
| 2025-06-23 | VISION RNG | BOWLING GREEN, Pike, MO | Pass | State |
| 2025-06-20 | DOE RUN CO-BUICK RESOURCE RECYCLING FCLT | BOSS, Dent, MO | Pass | State |
| 2025-06-20 | DOE RUN CO-BUICK RESOURCE RECYCLING FCLT | BOSS, Dent, MO | Pass | State |
| 2025-06-20 | NEW MADRID POWER PLANT-ASSOC ELEC COOP | MARSTON, New Madrid, MO | Pass | State |
| 2025-06-20 | NEW MADRID POWER PLANT-ASSOC ELEC COOP | MARSTON, New Madrid, MO | Pass | State |
| 2025-06-20 | AMRIZE CEMENT INC | BLOOMSDALE, Ste. Genevieve, MO | N/A | State |
| 2025-06-20 | AMRIZE CEMENT INC | BLOOMSDALE, Ste. Genevieve, MO | Pass | State |
| 2025-06-20 | AMRIZE CEMENT INC | BLOOMSDALE, Ste. Genevieve, MO | Pass | State |
| 2025-06-20 | AMRIZE CEMENT INC | BLOOMSDALE, Ste. Genevieve, MO | Pass | State |
| 2025-06-19 | NOBLE HILL SANITARY LANDFILL | WILLARD, Greene, MO | Pass | State |
| 2025-06-19 | AUDUBON MATERIALS, LLC - SUGAR CREEK PLANT | SUGAR CREEK, Jackson, MO | Pass | State |
| 2025-06-18 | EVERGY-HAWTHORN GENERATING STATION | KANSAS CITY, Jackson, MO | Pass | State |
| 2025-06-18 | EVERGY-HAWTHORN GENERATING STATION | KANSAS CITY, Jackson, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-18 | RAY COUNTY STONE EE QUARRY | RICHMOND, Ray, MO | Pass | State |
| 2025-06-17 | LIGHTNING RENEWABLES - LEMONS EAST | DEXTER, Stoddard, MO | Pass | State |
| 2025-06-13 | WHETROCK INC AMAZONIA | AMAZONIA, Andrew, MO | Pass | State |
| 2025-06-13 | WHETROCK INC AMAZONIA | AMAZONIA, Andrew, MO | Pass | State |
| 2025-06-13 | WHETROCK INC AMAZONIA | AMAZONIA, Andrew, MO | Pass | State |
| 2025-06-13 | WHETROCK INC AMAZONIA | AMAZONIA, Andrew, MO | Pass | State |
| 2025-06-13 | WHETROCK INC AMAZONIA | AMAZONIA, Andrew, MO | Pass | State |
| 2025-06-13 | WHETROCK INC AMAZONIA | AMAZONIA, Andrew, MO | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.