EPA Air · stack tests by county and year
Air-emissions stack tests in Hampden County, Massachusetts, 2024
- 9Stack 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 Hampden County, Massachusetts during 2024. 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 Hampden County facility page.
Hampden County, Massachusetts, 2024
Air-emissions stack tests in Hampden County, other years
Air-emissions stack tests recorded in Hampden County, Massachusetts, 2024
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2024-12-13 | MAINSPRING ENERGY | Pass | State |
| 2024-12-05 | TREW STONE, LLC (PLANT #4) | Pass | State |
| 2024-07-31 | TENNESSEE GAS PIPELINE STATION 261 | Pass | State |
| 2024-05-13 | ROCKWOOD FARM ORGANIC RECYCLERY | Pass | State |
| 2024-04-17 | AMERESCO CHICOPEE ENERGY, INC | Pass | State |
| 2024-04-16 | BAYSTATE MEDICAL CENTER | Pass | State |
| 2024-04-02 | STONY BROOK ENERGY CENTER — high-priority violation on file | Pass | State |
| 2024-03-01 | STONY BROOK ENERGY CENTER — high-priority violation on file | Pending | State |
| 2024-01-04 | TENNESSEE GAS PIPELINE STATION 261 | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.