EPA Air · by state and industry
Nonmetallic mineral product manufacturing (NAICS 3271) air sources in Maryland
- 9Facilities
Permitted air-emissions sources in Maryland whose primary industry code is NAICS 3271. A facility filing more than one industry code is counted under the first one on its record, so a plant with several lines appears once, under the line EPA lists first.
Inspections of nonmetallic mineral product manufacturing (naics 3271) in Maryland, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| D.C. MATERIALS | Minor source | No |
| FREDERICK BRICK WORKS | Minor source | No |
| LOCKE INSULATORS | Minor source | No |
| MD CERAMIC AND STEATITE | Minor source | No |
| MERREY COMPANIES, (BALTIMORE BRICK) | Minor source | No |
| MT SAVAGE FIREBRICK | Minor source | No |
| REDLAND BRICK | Synthetic minor source | No |
| REDLAND BRICK | Synthetic minor source | No |
| S.W. BARRICK & SONS, INC.-BARRICK QUARRY | Minor source | No |
Primary NAICS code as filed on the facility record. Figures from EPA’s ICIS-AIR download.