EPA Air · stack tests by county and year
Air-emissions stack tests in Rockingham County, New Hampshire, 2025
- 14Stack 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 Rockingham County, New Hampshire 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 Rockingham County facility page.
Rockingham County, New Hampshire, 2025
Air-emissions stack tests in Rockingham County, other years
Air-emissions stack tests recorded in Rockingham County, New Hampshire, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-09-17 | AJ NONWOVENS-HAMPTON, LLC | Pass | State |
| 2025-08-12 | NEWINGTON ENERGY | Pass | State |
| 2025-08-12 | NEWINGTON ENERGY | Pass | State |
| 2025-06-26 | SCHILLER STATION COMBUSTION TURBINE | Pass | State |
| 2025-06-18 | GRANITE RIDGE ENERGY, LLC | Pass | State |
| 2025-06-17 | GRANITE RIDGE ENERGY, LLC | Pass | State |
| 2025-05-13 | GEORGIA-PACIFIC GYPSUM LLC | Pass | State |
| 2025-05-13 | GEORGIA-PACIFIC GYPSUM LLC | Pass | State |
| 2025-05-13 | GEORGIA-PACIFIC GYPSUM LLC | Pass | State |
| 2025-05-07 | LINDT & SPRUNGLI (USA) INC. | Pass | State |
| 2025-04-02 | NEXTERA ENERGY SEABROOK, LLC | Pass | State |
| 2025-04-02 | NEXTERA ENERGY SEABROOK, LLC | Pass | State |
| 2025-03-06 | GSP NEWINGTON LLC | Pass | State |
| 2025-03-06 | GSP NEWINGTON LLC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.