EPA Air · by county
Air-emissions sources in Harrison County, Mississippi
- 30Facilities
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Every stationary source in Harrison County, Mississippi 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 Harrison County
Each of the 30 operating major, synthetic minor and minor sources in Harrison County, Mississippi has a record page: every source in Harrison County, A to Z.
By emissions classification in Harrison 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 Harrison 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.
- 2025 inspections 7
- 2024 inspections 5
- 2023 inspections 8
- 2022 inspections 4
- 2021 inspections 7
- 2019 inspections 9
- 2018 inspections 3
- 2017 inspections 6
Violations in Harrison 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 Harrison 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 20
- 2023 stack tests 25
- 2022 stack tests 46
- 2021 stack tests 58
- 2020 stack tests 11
- 2019 stack tests 61
- 2018 stack tests 8
- 2017 stack tests 54
Inspections in Harrison County, year by year · Violations in Harrison County, year by year · Stack tests in Harrison County, year by year
Other counties in Mississippi
Every county in the state with at least three sources on file.
- Clay County 7
- Coahoma County 8
- Copiah County 11
- Covington County 20
- DeSoto County 21
- Forrest County 24
- Franklin County 3
- George County 5
- Grenada County 15
- Hancock County 14
- Hinds County 77
- Holmes County 3
- Humphreys County 4
- Issaquena County 3
- Itawamba County 10
- Jackson County 28
- Jasper County 17
- Jefferson County 3
- Jefferson Davis County 6
Facilities
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.