EPA Air · stack tests by state, industry and year
Pipeline transportation (NAICS 4862): stack tests in Maryland, 2021
- 5Stack 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 2021 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, 2021
- Utilities (NAICS 2211) 19
- Nonmetallic mineral product manufacturing (NAICS 3273) 7
- Waste management and remediation (NAICS 5622) 5
- Chemical manufacturing (NAICS 3251) 3
- Merchant wholesalers, durable goods (NAICS 4237) 3
Air-emissions stack tests recorded in Maryland, 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-12-08 | TRANSCONTINENTAL GAS PIPELINE | ELLICOTT CITY, Howard, MD | Pass | State |
| 2021-11-02 | DOMINION TRANSMISSION, INC | MIDDLETOWN, Frederick, MD | Pass | State |
| 2021-07-16 | DOMINION ENERGY COVE POINT LNG, LP | LUSBY, Calvert, MD | Pass | State |
| 2021-05-17 | TEXAS EASTERN TRANSMISSION | ACCIDENT, Garrett, MD | Pass | State |
| 2021-03-01 | DOMINION ENERGY COVE POINT LNG, LP | LUSBY, Calvert, MD | Fail | 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.