EPA Air · stack tests by state and year
Air-emissions stack tests in Missouri, 2026
- 326Stack 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 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Missouri, 2026
- Christian County 105
- Undetermined County 46
- Greene County 38
- Buchanan County 20
- Ste. Genevieve County 17
- Johnson County 12
- Lincoln County 11
- Jackson County 10
- Ralls County 8
- Boone County 6
- Jefferson County 6
- St. Louis County 5
- Barton County 4
- Holt County 4
- Pettis County 4
- St. Louis (city) County 3
- Pike County 3
- St. Charles County 3
- Cass County 3
- Randolph County 3
Missouri, other years
Air-emissions stack tests recorded in Missouri, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-20 | CAPITAL MATERIALS | OZARK, Christian, MO | Pass | State |
| 2026-05-18 | CENTRAL STONE COMPANY FT BELLE QUARRY CS31 | FLORISSANT, St. Louis, MO | Pass | State |
| 2026-05-18 | CENTRAL STONE COMPANY FT BELLE QUARRY CS31 | FLORISSANT, St. Louis, MO | Pass | State |
| 2026-05-18 | CENTRAL STONE COMPANY FT BELLE QUARRY CS31 | FLORISSANT, St. Louis, MO | Pass | State |
| 2026-05-14 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | Pass | State |
| 2026-05-14 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | Pass | State |
| 2026-05-14 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | Pass | State |
| 2026-05-13 | CONTINENTAL CEMENT COMPANY LLC — high-priority violation on file | HANNIBAL, Ralls, MO | Pass | State |
| 2026-05-13 | CONTINENTAL CEMENT COMPANY LLC — high-priority violation on file | HANNIBAL, Ralls, MO | Pass | State |
| 2026-05-06 | EAGLE RIDGE LANDFILL | BOWLING GREEN, Pike, MO | Pending | State |
| 2026-05-05 | JEFFERSON CITY LANDFILL, LLC | JEFFERSON CITY, Cole, MO | Pass | State |
| 2026-04-24 | FOREST CITY FACILITY, LLC | FOREST CITY, Holt, MO | Pass | State |
| 2026-04-24 | FOREST CITY FACILITY, LLC | FOREST CITY, Holt, MO | Pass | State |
| 2026-04-24 | FOREST CITY FACILITY, LLC | FOREST CITY, Holt, MO | Pass | State |
| 2026-04-24 | FOREST CITY FACILITY, LLC | FOREST CITY, Holt, MO | Pass | State |
| 2026-04-23 | CERTAINTEED LLC | JONESBURG, Montgomery, MO | Fail | State |
| 2026-04-23 | METROPOLITAN ST. LOUIS SEWER DISTRICT BISSELL POINT WWTP | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2026-04-23 | METROPOLITAN ST. LOUIS SEWER DISTRICT BISSELL POINT WWTP | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2026-04-22 | METROPOLITAN ST. LOUIS SEWER DISTRICT | SAINT LOUIS COUNTY, St. Louis, MO | Pass | State |
| 2026-04-21 | METROPOLITAN ST. LOUIS SEWER DISTRICT | SAINT LOUIS COUNTY, St. Louis, MO | Pass | State |
| 2026-04-10 | PANHANDLE EASTERN PIPELINE COMPANY | CENTRALIA, Boone, MO | Pending | State |
| 2026-04-10 | PANHANDLE EASTERN PIPELINE COMPANY | CENTRALIA, Boone, MO | Pending | State |
| 2026-04-10 | PANHANDLE EASTERN PIPELINE COMPANY | CENTRALIA, Boone, MO | Pending | State |
| 2026-04-09 | COLUMBIA SANITARY LANDFILL | COLUMBIA, Boone, MO | Pass | State |
| 2026-04-09 | COLUMBIA SANITARY LANDFILL | COLUMBIA, Boone, MO | Pass | State |
| 2026-04-09 | COLUMBIA SANITARY LANDFILL | COLUMBIA, Boone, MO | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.