EPA Air · by county
Air-emissions sources in Marion County, Ohio
- 32Facilities
Every stationary source in Marion County, Ohio 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.
By emissions classification in Marion 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 Marion 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 5
- 2025 — inspections 9
- 2023 — inspections 10
- 2022 — inspections 6
- 2021 — inspections 14
- 2020 — inspections 7
- 2019 — inspections 5
- 2018 — inspections 10
- 2017 — inspections 11
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| BUCKEYE READY MIX - PLANT 14 | Minor source | No |
| CENTRAL OHIO FARMERS CO-OP INC. | Minor source | No |
| CENTRAL OHIO FARMERS CO-OP, INC. | Minor source | No |
| CENTRAL OHIO FARMERS CO-OP, INC. | Minor source | No |
| CENTRAL OHIO FARMERS CO-OP, INC.- MARION GRAIN | Major source | No |
| GLEN-GERY CORP. IBERIA PLANT | Major source | No |
| GRAPHIC PACKAGING INTERNATIONAL, LLC | Synthetic minor source | No |
| HILDRETH MFG. LLC | Minor source | No |
| J-LENCO, INC. | Minor source | No |
| M&W FARM SUPPLY, LLC | Minor source | No |
| MAR-ZANE INC - PLANT 7 | Synthetic minor source | No |
| MARION CORRECTIONAL INSTITUTION | Emissions classification unknown | Yes |
| MORRAL COMPANIES, LLC | Minor source | No |
| MOTHERSON YACHIYO US AUTOMOTIVE SYSTEMS, INC | Minor source | No |
| NACHURS ALPINE SOLUTIONS, LLC | Minor source | No |
| NATIONAL LIME & STONE COMPANY - MARION PLANT | Minor source | No |
| NUCOR STEEL MARION, INC. | Major source | No |
| OHIO GALVANIZING LLC | Minor source | No |
| PARK ENTERPRISE CONSTRUCTION COMPANY LLC | Minor source | No |
| POET BIOREFINING - MARION, LLC | Major source | No |
| PROSPECT MUNICIPAL ELECTRIC DEPT | Synthetic minor source | No |
| RECONSERVE OF OHIO, INC. | Minor source | No |
| SEMCO, INC. | Minor source | No |
| SIKA CORPORATION | Minor source | No |
| SIMS BROS INC | Minor source | No |
| SMITH MATERIAL SUPPLY, INC. | Emissions classification unknown | No |
| SMITHFIELD GRAIN | Minor source | No |
| TODCO DIV. OVERHEAD DOOR CORP. | Minor source | No |
| TRILLIUM FARMS | Minor source | No |
| UNION TANK CAR COMPANY | Major source | Yes |
| WHIRLPOOL CORP. MARION OPERATIONS | Major source | No |
| WYANDOT, INC. | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.