EPA Air · stack tests by county and year
Air-emissions stack tests in Worcester County, Massachusetts, 2026
- 8Stack 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 Worcester 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 Worcester County facility page.
Worcester County, Massachusetts, 2026
Air-emissions stack tests in Worcester County, other years
Air-emissions stack tests recorded in Worcester County, Massachusetts, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-06-03 | ST GOBAIN ABRASIVES, INC | Pending | State |
| 2026-06-03 | ST GOBAIN ABRASIVES, INC | Pending | State |
| 2026-05-22 | NE RENEWABLE POWER FITCHBURG LLC | Pending | State |
| 2026-05-22 | NE RENEWABLE POWER FITCHBURG LLC | Pending | State |
| 2026-03-13 | WHEELABRATOR MILLBURY INC | Pending | State |
| 2026-03-11 | WHEELABRATOR MILLBURY INC | Pending | State |
| 2026-03-10 | SBC ENERGY LLC FKA SOUTHBRIDGE POWER & THERMAL LLC | Pending | State |
| 2026-01-14 | WHEELABRATOR MILLBURY INC | Pending | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.