EPA Air · by county
Air-emissions sources in Cass County, Missouri
- 55Facilities
Every stationary source in Cass County, Missouri that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
Every source’s record in Cass County
Each of the 48 operating major, synthetic minor and minor sources in Cass County, Missouri has a record page: every source in Cass County, A to Z.
By emissions classification in Cass County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Cass County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 inspections 7
- 2025 inspections 6
- 2023 inspections 4
- 2022 inspections 4
- 2021 inspections 3
- 2020 inspections 3
- 2018 inspections 3
Stack tests in Cass County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2026 stack tests 7
- 2025 stack tests 14
- 2024 stack tests 6
- 2023 stack tests 6
- 2022 stack tests 6
- 2021 stack tests 7
- 2020 stack tests 10
- 2019 stack tests 10
- 2018 stack tests 8
- 2017 stack tests 15
Inspections in Cass County, year by year · Stack tests in Cass County, year by year
Other counties in Missouri
Every county in the state with at least three sources on file.
- Bollinger County 7
- Boone County 100
- Buchanan County 86
- Butler County 42
- Caldwell County 8
- Callaway County 47
- Camden County 32
- Cape Girardeau County 80
- Carroll County 21
- Carter County 10
- Cedar County 15
- Chariton County 19
- Christian County 25
- Clark County 12
- Clay County 124
- Clinton County 14
- Cole County 69
- Cooper County 24
- Crawford County 33
Facilities
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for Cass county, MO. It lists 55 facilities in Cass county and 3 major sources.