EPA Air · stack tests by county and year

Air-emissions stack tests in Buchanan County, Missouri, 2025

• 101Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Buchanan County, Missouri during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Buchanan County facility page.

Buchanan County, Missouri, 2025

• Inspections 8
• High-priority violations 3

Air-emissions stack tests in Buchanan County, other years

• 2026 20
• 2024 15
• 2023 29
• 2022 5
• 2021 14
• 2020 4
• 2019 12
• 2018 30
• 2017 10

Air-emissions stack tests recorded in Buchanan County, Missouri, 2025

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.