EPA Air · by county
Air-emissions sources in Hardin County, Iowa
- 34Facilities
Every stationary source in Hardin County, Iowa 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 Hardin County
Each of the 32 operating major, synthetic minor and minor sources in Hardin County, Iowa has a record page: every source in Hardin County, A to Z.
By emissions classification in Hardin 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 Hardin 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 4
- 2023 inspections 4
- 2022 inspections 3
- 2021 inspections 3
- 2019 inspections 4
- 2018 inspections 3
Violations in Hardin 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 Hardin County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2026 stack tests 15
- 2025 stack tests 22
- 2024 stack tests 24
- 2023 stack tests 30
- 2022 stack tests 12
- 2021 stack tests 14
- 2020 stack tests 13
- 2019 stack tests 8
- 2018 stack tests 24
- 2017 stack tests 5
Inspections in Hardin County, year by year · Violations in Hardin County, year by year · Stack tests in Hardin County, year by year
Other counties in Iowa
Every county in the state with at least three sources on file.
- Emmet County 27
- Fayette County 26
- Floyd County 32
- Franklin County 17
- Fremont County 12
- Greene County 21
- Grundy County 23
- Guthrie County 17
- Hamilton County 27
- Hancock County 30
- Harrison County 16
- Henry County 27
- Howard County 16
- Humboldt County 25
- Ida County 16
- Iowa County 29
- Jackson County 26
- Jasper County 40
- Jefferson County 27
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 Hardin county, IA. It lists 34 facilities in Hardin county and 3 major sources.