EPA Air · stack tests by county and year
Air-emissions stack tests in Prince George's County, Maryland, 2025
- 3Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Prince George's County, Maryland during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Prince George's County facility page.
Prince George's County, Maryland, 2025
Air-emissions stack tests in Prince George's County, other years
Air-emissions stack tests recorded in Prince George's County, Maryland, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-04-23 | PSEG KEYS ENERGY CENTER | Pass | State |
| 2025-04-17 | GAYLORD ENTERTAINMENT COMPANY — high-priority violation on file | Pass | State |
| 2025-01-31 | CHALK POINT POWER, LLC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.