EPA Air · stack tests by county and year
Air-emissions stack tests in Hillsborough County, New Hampshire, 2026
- 4Stack 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 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 Hillsborough County facility page.
Hillsborough County, New Hampshire, 2026
- Inspections 14
Air-emissions stack tests in Hillsborough County, other years
Air-emissions stack tests recorded in Hillsborough County, New Hampshire, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-06-17 | HITCHINER MANUFACTURING CO., INC. | Pending | State |
| 2026-06-09 | MANCHESTER, CITY OF - WATER TREATMENT PLANT | Pass | State |
| 2026-05-13 | CAN-ONE (USA), INC. D/B/A KJ CAN USA | Pass | State |
| 2026-02-18 | CONCORD EXPANSION COMPRESSOR STATION | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.