EPA Air · stack tests by county and year
Air-emissions stack tests in Middlesex County, Connecticut, 2025
- 18Stack 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 Middlesex County, Connecticut 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 Middlesex County facility page.
Middlesex County, Connecticut, 2025
Air-emissions stack tests in Middlesex County, other years
Air-emissions stack tests recorded in Middlesex County, Connecticut, 2025
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 Middlesex county, CT, for 2025. It lists 18 stack tests recorded in 2025.