EPA Air · by county
Air-emissions sources in Webster County, Iowa
- 57Facilities
Every stationary source in Webster 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 Webster County
Each of the 56 operating major, synthetic minor and minor sources in Webster County, Iowa has a record page: every source in Webster County, A to Z.
By emissions classification in Webster 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 Webster 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 3
- 2025 inspections 4
- 2024 inspections 13
- 2023 inspections 6
- 2022 inspections 6
- 2021 inspections 5
- 2020 inspections 7
- 2019 inspections 10
- 2018 inspections 3
- 2017 inspections 7
Violations in Webster 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 Webster County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2025 stack tests 23
- 2024 stack tests 19
- 2023 stack tests 28
- 2022 stack tests 22
- 2021 stack tests 17
- 2020 stack tests 12
- 2019 stack tests 14
- 2018 stack tests 15
- 2017 stack tests 17
Inspections in Webster County, year by year · Violations in Webster County, year by year · Stack tests in Webster County, year by year
Other counties in Iowa
Every county in the state with at least three sources on file.
- Sac County 25
- Scott County 145
- Shelby County 17
- Sioux County 78
- Story County 87
- Tama County 22
- Taylor County 8
- Undetermined County 3
- Union County 19
- Van Buren County 13
- Wapello County 45
- Warren County 35
- Washington County 38
- Wayne County 12
- Winnebago County 23
- Winneshiek County 39
- Woodbury County 100
- Worth County 22
- Wright County 39
Facilities
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.