EPA Air · stack tests by county and year
Air-emissions stack tests in Essex County, Massachusetts, 2026
- 7Stack 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 Essex 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 Essex County facility page.
Essex County, Massachusetts, 2026
Air-emissions stack tests in Essex County, other years
Air-emissions stack tests recorded in Essex County, Massachusetts, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-05-07 | IPSWICH MUNICIPAL LIGHT | Pending | State |
| 2026-04-28 | JAYBIRD & MAIS INC | Pending | State |
| 2026-04-03 | REWORLD HAVERHILL LLC F.K.A. COVANTA HAVERHILL INCORPORATED | Pending | State |
| 2026-02-10 | MARBLEHEAD MUNICIPAL-WILKENS | Pending | State |
| 2026-01-28 | JAYBIRD & MAIS INC | Pending | State |
| 2026-01-21 | WHEELABRATOR NORTH ANDOVER INCORPORATED | Pending | State |
| 2026-01-20 | REWORLD HAVERHILL LLC F.K.A. COVANTA HAVERHILL INCORPORATED | Pending | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.