EPA Air · by county
Air-emissions sources in O'Brien County, Iowa
- 34Facilities
Every stationary source in O'Brien 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 O'Brien County
Each of the 34 operating major, synthetic minor and minor sources in O'Brien County, Iowa has a record page: every source in O'Brien County, A to Z.
By emissions classification in O'Brien 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 O'Brien 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.
Stack tests in O'Brien County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2025 stack tests 5
- 2024 stack tests 7
- 2023 stack tests 7
- 2022 stack tests 5
- 2021 stack tests 5
- 2020 stack tests 4
- 2019 stack tests 6
- 2018 stack tests 5
- 2017 stack tests 3
Inspections in O'Brien County, year by year · Stack tests in O'Brien County, year by year
Other counties in Iowa
Every county in the state with at least three sources on file.
- Madison County 21
- Mahaska County 29
- Marion County 53
- Marshall County 49
- Mills County 11
- Mitchell County 28
- Monona County 16
- Monroe County 17
- Montgomery County 16
- Muscatine County 75
- Osceola County 13
- Page County 31
- Palo Alto County 24
- Plymouth County 30
- Pocahontas County 21
- Polk County 1,161
- Pottawattamie County 88
- Poweshiek County 36
- Ringgold County 8
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 O'Brien county, IA. It lists 34 facilities in O'Brien county and 3 major sources.