EPA Air · stack tests by county and year
Air-emissions stack tests in Hampshire County, Massachusetts, 2026
- 5Stack 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 Hampshire County, Massachusetts during 2026. 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 Hampshire County facility page.
Hampshire County, Massachusetts, 2026
- Inspections 32
Air-emissions stack tests in Hampshire County, other years
Air-emissions stack tests recorded in Hampshire County, Massachusetts, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-06-29 | SOUTH HADLEY HIGH SCHOOL | Pending | State |
| 2026-05-11 | JOHN S LANE & SONS INC | Pending | State |
| 2026-04-14 | UMASS AMHERST CAMPUS | Pending | State |
| 2026-04-10 | JOHN S LANE & SONS INC | Pending | State |
| 2026-04-10 | JOHN S LANE & SONS INC | Pending | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.