EPA Air · stack tests by state, industry and year
Pipeline transportation (NAICS 4862): stack tests in Maryland, 2026
- 4Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2026 at a Maryland source whose primary industry code is NAICS 4862. A facility filing more than one industry code is counted under the first one on its record.
Pipeline transportation (NAICS 4862) in Maryland, other years
Other industries in Maryland, 2026
- Utilities (NAICS 2211) 6
- Hospitals (NAICS 6221) 4
- Nonmetallic mineral product manufacturing (NAICS 3273) 3
- Waste management and remediation (NAICS 5622) 3
Air-emissions stack tests recorded in Maryland, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-06-22 | TEXAS EASTERN TRANSMISSION | ACCIDENT, Garrett, MD | Pass | State |
| 2026-04-28 | DOMINION ENERGY COVE POINT LNG, LP | LUSBY, Calvert, MD | Pass | State |
| 2026-02-27 | DOMINION ENERGY COVE POINT LNG, LP | LUSBY, Calvert, MD | Pass | State |
| 2026-02-12 | DOMINION ENERGY COVE POINT LNG, LP | LUSBY, Calvert, MD | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.