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.
What this page shows
The page covers Clean Air Act facilities in the EPA air register and stack tests in Worcester county, MA, for 2026. Stack tests recorded in 2026: 8.