EPA Air · stack tests by state, industry and year
Paper manufacturing (NAICS 3221): stack tests in Idaho, 2026
- 4Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2026 at a Idaho source whose primary industry code is NAICS 3221. A facility filing more than one industry code is counted under the first one on its record.
Paper manufacturing (NAICS 3221) in Idaho, other years
Other industries in Idaho, 2026
- Mining and quarrying (NAICS 2123) 68
- Pipeline transportation (NAICS 4862) 6
- Chemical manufacturing (NAICS 3253) 5
- Petroleum and coal products manufacturing (NAICS 3241) 5
Air-emissions stack tests recorded in Idaho, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-07-16 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2026-04-09 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2026-03-25 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2026-01-19 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.