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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Hampden county, MA, in 2024. The stack tests recorded in 2024 total 9.