EPA Air · stack tests by county and year
Air-emissions stack tests in Worcester County, Massachusetts, 2025
- 10Stack 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 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 Worcester County facility page.
Worcester County, Massachusetts, 2025
Air-emissions stack tests in Worcester County, other years
Air-emissions stack tests recorded in Worcester County, Massachusetts, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-23 | GENTEX OPTICS | Pass | State |
| 2025-10-16 | BLACKSTONE POWER GENERATING LLC | Pending | State |
| 2025-10-13 | MILFORD REGIONAL MEDICAL CENTER INC | Pending | State |
| 2025-08-19 | SHREWSBURY ELECTRIC AND CABLE OPERATIONS | Pass | State |
| 2025-08-11 | TEKNOR APEX COMPANY | Pass | State |
| 2025-06-30 | WHEELABRATOR MILLBURY INC | Pass | State |
| 2025-06-20 | COORSTEK INC | Pass | State |
| 2025-03-19 | SOUTHBRIDGE LANDFILL GAS MANAGEMENT | Pass | State |
| 2025-02-05 | UMASS MEDICAL CENTER — high-priority violation on file | Pass | State |
| 2025-01-14 | PREMATECH ADVANCED CERAMICS | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Worcester county, MA, for 2025. It lists 10 stack tests recorded in 2025.