EPA Air · stack tests by state and year
Air-emissions stack tests in Vermont, 2025
- 4Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Vermont during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Vermont, other years
Air-emissions stack tests recorded in Vermont, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-10-02 | GLOBALFOUNDRIES US 2 LLC | ESSEX, Chittenden, VT | Pass | State |
| 2025-10-01 | COVENTRY CLEAN ENERGY CORPORATION — high-priority violation on file | COVENTRY, Orleans, VT | Pass | State |
| 2025-09-12 | HARBOUR INDUSTRIES LLC | SHELBURNE, Chittenden, VT | Pass | State |
| 2025-05-28 | RYEGATE ASSOCIATES — high-priority violation on file | RYEGATE, Caledonia, VT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.