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 |
|---|---|---|---|---|
| 2025-09-15 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-09-15 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-09-15 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-09-10 | AUDUBON MATERIALS, LLC - SUGAR CREEK PLANT | SUGAR CREEK, Jackson, MO | Pass | State |
| 2025-09-10 | RIVER CEMENT CO. DBA BUZZI UNICEM USA SELMA PLANT | FESTUS, Jefferson, MO | Fail | State |
| 2025-09-10 | RIVER CEMENT CO. DBA BUZZI UNICEM USA SELMA PLANT | FESTUS, Jefferson, MO | Fail | State |
| 2025-09-04 | N. B. WEST CONTRACTING CO INC PACIFIC PLANT | PACIFIC, Franklin, MO | Pass | State |
| 2025-09-04 | DELTA ASPHALT INC | DEXTER, Stoddard, MO | Pass | State |
| 2025-09-03 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-03 | CENTRAL STONE COMPANY - ANTONIA CS56 | ANTONIA, Jefferson, MO | Pass | State |
| 2025-09-02 | COLUMBIA SOUTHERN STAR CENTRAL | COLUMBIA, Boone, MO | Pass | State |
| 2025-09-02 | NOBLE HILL SANITARY LANDFILL | WILLARD, Greene, MO | Pass | State |
| 2025-09-02 | BLACK OAK RECYCLING AND DISPOSAL FACILITY DIV WASTE CORPORATION OF MISSOURI INC | HARTVILLE, Wright, MO | Pass | State |
| 2025-08-28 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-28 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-28 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-28 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2025-08-28 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-28 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-28 | NEW MADRID POWER PLANT-ASSOC ELEC COOP | MARSTON, New Madrid, MO | Pass | State |
| 2025-08-22 | RIVER CEMENT CO. DBA BUZZI UNICEM USA SELMA PLANT | FESTUS, Jefferson, MO | Fail | State |
| 2025-08-22 | RIVER CEMENT CO. DBA BUZZI UNICEM USA SELMA PLANT | FESTUS, Jefferson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-22 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Pass | State |
| 2025-08-21 | ARDAGH GLASS INC. | PEVELY, Jefferson, MO | Fail | State |
| 2025-08-21 | ARDAGH GLASS INC. | PEVELY, Jefferson, MO | Fail | State |
| 2025-08-20 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Pass | State |
| 2025-08-20 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Pass | State |
| 2025-08-20 | CENTRAL MISSOURI RENEWABLE NATURAL GAS LLC | SEDALIA, Pettis, MO | Pass | State |
| 2025-08-12 | SPECIALTY GRANULES | ANNAPOLIS, Iron, MO | Pass | State |
| 2025-08-12 | AUDUBON MATERIALS, LLC - SUGAR CREEK PLANT | SUGAR CREEK, Jackson, MO | Pass | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | N/A | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | N/A | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2025-08-08 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | N/A | State |
| 2025-08-04 | ELEMENTIS SPECIALITIES | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2025-08-01 | PROCTER & GAMBLE PAPER PRODUCTS COMPANY | JACKSON, Cape Girardeau, MO | Pass | State |
| 2025-08-01 | PROCTER & GAMBLE PAPER PRODUCTS COMPANY | JACKSON, Cape Girardeau, MO | Pass | State |
| 2025-08-01 | PROCTER & GAMBLE PAPER PRODUCTS COMPANY | JACKSON, Cape Girardeau, MO | Pass | State |
| 2025-08-01 | PROCTER & GAMBLE PAPER PRODUCTS COMPANY | JACKSON, Cape Girardeau, MO | Pass | State |
| 2025-08-01 | PROCTER & GAMBLE PAPER PRODUCTS COMPANY | JACKSON, Cape Girardeau, MO | Pass | State |
| 2025-08-01 | PROCTER & GAMBLE PAPER PRODUCTS COMPANY | JACKSON, Cape Girardeau, MO | Pass | State |
| 2025-08-01 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2025-08-01 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2025-07-31 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-07-31 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-07-31 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-07-31 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2025-07-25 | BOEHRINGER INGELHEIM ANIMAL HEALTH | COSBY, Andrew, MO | Pass | State |
| 2025-07-25 | BOEHRINGER INGELHEIM ANIMAL HEALTH | COSBY, Andrew, MO | Pass | State |
| 2025-07-25 | BOEHRINGER INGELHEIM ANIMAL HEALTH | COSBY, Andrew, MO | Pass | State |
| 2025-07-25 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | N/A | State |
| 2025-07-25 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | N/A | State |
| 2025-07-25 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | N/A | State |
| 2025-07-25 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | N/A | State |
| 2025-07-24 | ENERSYS, INC. — high-priority violation on file | WARRENSBURG, Johnson, MO | Fail | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.