EPA Air · stack tests by county and year
Air-emissions stack tests in Hillsborough County, New Hampshire, 2025
- 9Stack 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 Hillsborough 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 Hillsborough County facility page.
Hillsborough County, New Hampshire, 2025
Air-emissions stack tests in Hillsborough County, other years
Air-emissions stack tests recorded in Hillsborough County, New Hampshire, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-07 | WORTHEN INDUSTRIES | Pass | State |
| 2025-08-29 | GOFFSTOWN TRANSFER STATION | Pass | State |
| 2025-08-13 | NASHUA, CITY OF - WASTEWATER TREATMENT FACILITY | Pass | State |
| 2025-08-12 | NASHUA, CITY OF - WASTEWATER TREATMENT FACILITY | Pass | State |
| 2025-07-22 | CRANE SECURITY TECHNOLOGIES, INC. — high-priority violation on file | Pass | State |
| 2025-07-16 | NEVILLE MATERIALS LLC | Pass | State |
| 2025-07-09 | HITCHINER MANUFACTURING CO., INC. | Pass | State |
| 2025-03-25 | WARWICK MILLS, INC. | Pass | State |
| 2025-02-11 | HITCHINER MANUFACTURING CO., INC. | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.