EPA Air · stack tests by state, industry and year
Waste management and remediation (NAICS 5622): stack tests in Maryland, 2026
- 3Stack 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 5622. A facility filing more than one industry code is counted under the first one on its record.
Waste management and remediation (NAICS 5622) in Maryland, other years
Other industries in Maryland, 2026
- Utilities (NAICS 2211) 6
- Hospitals (NAICS 6221) 4
- Pipeline transportation (NAICS 4862) 4
- Nonmetallic mineral product manufacturing (NAICS 3273) 3
Air-emissions stack tests recorded in Maryland, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-08-25 | ALPHA RIDGE LANDFILL | MARRIOTTSVILLE, Howard, MD | Pending | State |
| 2026-04-24 | WHEELABRATOR BALTIMORE, LP | BALTIMORE, Baltimore (city), MD | Pass | State |
| 2026-03-11 | CURTIS BAY ENERGY, LP — high-priority violation on file | BALTIMORE, Baltimore (city), 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.