EPA Air · by county
Air-emissions sources in Mason County, Kentucky
- 6Facilities
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Every stationary source in Mason County, Kentucky 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 Mason County
Each of the 6 operating major, synthetic minor and minor sources in Mason County, Kentucky has a record page: every source in Mason County, A to Z.
By emissions classification in Mason 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 Mason 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.
- 2024 inspections 5
- 2023 inspections 3
- 2022 inspections 6
- 2021 inspections 6
- 2020 inspections 4
- 2019 inspections 4
- 2018 inspections 4
- 2017 inspections 6
Stack tests in Mason County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2025 stack tests 3
- 2023 stack tests 3
- 2022 stack tests 5
- 2019 stack tests 3
- 2018 stack tests 5
- 2017 stack tests 11
Inspections in Mason County, year by year · Stack tests in Mason County, year by year
Other counties in Kentucky
Every county in the state with at least three sources on file.
- Kenton County 17
- Knox County 3
- Laurel County 6
- Letcher County 3
- Livingston County 3
- Logan County 5
- Madison County 13
- Marion County 8
- Marshall County 21
- Martin County 11
- McCracken County 12
- Meade County 3
- Mercer County 3
- Metcalfe County 3
- Monroe County 4
- Montgomery County 7
- Muhlenberg County 6
- Nelson County 13
- Ohio County 7
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| CARMEUSE LIME & STONE INC | Major source | Yes |
| EAST KY POWER COOP - SPURLOCK STATION | Major source | No |
| GREEN TOKAI CO | Synthetic minor source | No |
| INTERNATIONAL PAPER - MAYSVILLE MILL | Major source | No |
| MASON CO KY FISCAL COURT | Major source | No |
| PRECISION PULLEY & IDLER | Synthetic minor source | No |
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 Mason county, KY. It lists 6 facilities in Mason county and 4 major sources.