EPA Air · by county
Air-emissions sources in Houghton County, Michigan
- 20Facilities
Every stationary source in Houghton County, Michigan 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 Houghton 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.
- Minor source 16
Inspections in Houghton 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 3
- 2024 — inspections 3
- 2022 — inspections 6
- 2018 — inspections 6
- 2017 — inspections 4
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| C L K PUBLIC SCHOOLS | Minor source | No |
| CALUMET ELECTRONICS CORP | Minor source | No |
| COPPER COUNTRY VET CLINIC | Minor source | No |
| HORNER FLOORING CO INC | Minor source | No |
| HOUGHTON COUNTY ROAD COMM. | Minor source | No |
| KEWEENAW MEMORIAL MEDICAL CTR | Minor source | No |
| MICHIGAN TECHNOLOGICAL UNIVERSITY | Synthetic minor source | No |
| MOYLE CONCRETE - CALUMET | Minor source | No |
| OSCEOLA FIBERGLASS MFG INC | Minor source | No |
| PATS FOODS HANCOCK | Minor source | No |
| PAYNE & DOLAN INC C19 | Synthetic minor source | No |
| PENINSULA COPPER INDUSTRIES INC | Minor source | No |
| ROSSI AMERICAN HARDWOODS | Minor source | No |
| SOMERO ENTERPRISES, INC. | Minor source | No |
| SUPERIOR BLOCK INC | Minor source | No |
| SUPERIOR SAND & GRAVEL INC | Minor source | No |
| UPPER PENINSULA POWER COMPANY - PORTAGE | Major source | No |
| WARM RAIN CORPORATION | Major source | No |
| WOOD DEVELOPMENT CORP | Minor source | No |
| YALMER MATTILA CONTRACTING INC | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.