EPA Air · stack tests by county and year
Air-emissions stack tests in Hampden County, Massachusetts, 2025
- 6Stack 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 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 Hampden County facility page.
Hampden County, Massachusetts, 2025
Air-emissions stack tests in Hampden County, other years
Air-emissions stack tests recorded in Hampden County, Massachusetts, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-07-18 | TENNESSEE GAS PIPELINE STATION 261 | Pass | State |
| 2025-07-11 | SPRINGFIELD CEMETERY | Incomplete | State |
| 2025-03-24 | STONY BROOK ENERGY CENTER — high-priority violation on file | Pass | State |
| 2025-03-11 | AT&T SPRINGFIELD | Pending | State |
| 2025-02-25 | CHICOPEE ELECTRIC LIGHT — high-priority violation on file | Pass | State |
| 2025-01-13 | SOLUTIA INCORPORATED — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.