EPA Air · by county
Air-emissions sources in Mesa County, Colorado
- 314Facilities
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Every stationary source in Mesa County, Colorado 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 Mesa County
Each of the 304 operating major, synthetic minor and minor sources in Mesa County, Colorado has a record page: every source in Mesa County, A to Z.
By emissions classification in Mesa 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 Mesa 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 12
- 2025 inspections 35
- 2024 inspections 30
- 2023 inspections 13
- 2022 inspections 8
- 2021 inspections 15
- 2020 inspections 14
- 2019 inspections 18
- 2018 inspections 24
- 2017 inspections 28
Violations in Mesa County, by year
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity.
Stack tests in Mesa County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2026 stack tests 10
- 2025 stack tests 6
- 2024 stack tests 7
- 2023 stack tests 11
- 2022 stack tests 13
- 2021 stack tests 8
- 2019 stack tests 7
- 2018 stack tests 8
- 2017 stack tests 6
Inspections in Mesa County, year by year · Violations in Mesa County, year by year · Stack tests in Mesa County, year by year
Other counties in Colorado
Every county in the state with at least three sources on file.
- Jackson County 45
- Jefferson County 373
- Kiowa County 48
- Kit Carson County 22
- La Plata County 320
- Lake County 14
- Larimer County 236
- Las Animas County 599
- Lincoln County 102
- Logan County 63
- Moffat County 334
- Montezuma County 49
- Montrose County 65
- Morgan County 61
- Otero County 40
- Ouray County 3
- Park County 17
- Phillips County 22
- Pitkin County 16
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 Mesa county, CO. It lists 314 facilities in Mesa county, including 4 major sources.