EPA Air · by county
Air-emissions sources in Howard County, Indiana
- 16Facilities
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Every stationary source in Howard County, Indiana 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 Howard County
Each of the 16 operating major, synthetic minor and minor sources in Howard County, Indiana has a record page: every source in Howard County, A to Z.
By emissions classification in Howard 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 Howard 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 9
- 2023 inspections 8
- 2021 inspections 5
- 2019 inspections 4
- 2018 inspections 3
- 2017 inspections 5
Violations in Howard 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 Howard County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2026 stack tests 17
- 2025 stack tests 35
- 2024 stack tests 34
- 2023 stack tests 3
- 2022 stack tests 39
- 2021 stack tests 22
- 2020 stack tests 14
- 2019 stack tests 32
- 2018 stack tests 38
- 2017 stack tests 27
Inspections in Howard County, year by year · Violations in Howard County, year by year · Stack tests in Howard County, year by year
Other counties in Indiana
Every county in the state with at least three sources on file.
- Fountain County 7
- Fulton County 6
- Gibson County 12
- Grant County 20
- Greene County 11
- Hamilton County 25
- Hancock County 11
- Harrison County 9
- Hendricks County 21
- Henry County 12
- Huntington County 19
- Jackson County 15
- Jasper County 16
- Jay County 12
- Jefferson County 7
- Jennings County 8
- Johnson County 21
- Knox County 16
- Kosciusko County 30
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| DELPHI KOKOMO TECHNICAL CENTER | Minor source | No |
| E & B PAVING LLC | Synthetic minor source | No |
| FCA US LLC INDIANA TRANSMISSION PLANT | Major source | No |
| FCA US LLC KOKOMO CASTING PLANT | Major source | No |
| FCA US LLC KOKOMO ENGINE PLANT | Major source | No |
| FCA US LLC KOKOMO TRANSMISSION PLANT | Major source | No |
| GENERAL MOTORS COMPONENTS HOLDINGS LLC | Major source | No |
| HAYNES INTERNATIONAL INC | Major source | Yes |
| J SHAW INDUSTRIES LLC DBA KOKOMO OPALESCENT GLASS COMPANY | Major source | No |
| JWA CO LTD | Major source | No |
| KOKOMO GRAIN COMPANY, INC. | Minor source | No |
| MARTIN MARIETTA MATERIALS, INC. - KOKOMO | Minor source | No |
| OMNISOURCE LLC | Minor source | No |
| SOULBRAIN MI INCORPORATED | Synthetic minor source | No |
| STARPLUS ENERGY LLC | Major source | No |
| SYNDICATE SALES, INC. | 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 Howard county, IN. It lists 16 facilities in Howard county, of which 9 are major sources.