EPA Air · stack tests by state and year
Air-emissions stack tests in Hawaii, 2026
- 21Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Hawaii during 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Hawaii, 2026
Hawaii, other years
Air-emissions stack tests recorded in Hawaii, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-07-15 | HPOWER | KAPOLEI, Honolulu, HI | Pass | State |
| 2026-05-20 | HECO - KAHE | KAPOLEI, Honolulu, HI | Pass | State |
| 2026-05-07 | HECO - SCHOFIELD — high-priority violation on file | WAHIAWA, Honolulu, HI | Pass | State |
| 2026-04-20 | U.S. NAVY - PEARL HARBOR — high-priority violation on file | PEARL HARBOR, Honolulu, HI | Pass | State |
| 2026-04-08 | MAHIPAPA | KOLOA, Kauai, HI | Pass | State |
| 2026-03-27 | MECO - MAALAEA | MAALAEA, Maui, HI | Pass | State |
| 2026-03-10 | HECO - WAIAU | PEARL CITY, Honolulu, HI | Pass | State |
| 2026-02-24 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Fail | State |
| 2026-02-20 | HECO - WAIAU | PEARL CITY, Honolulu, HI | Pass | State |
| 2026-02-19 | HECO - WAIAU | PEARL CITY, Honolulu, HI | Pass | State |
| 2026-02-16 | KAUAI ISLAND UTILITY - PORT ALLEN — high-priority violation on file | ELEELE, Kauai, HI | Pass | State |
| 2026-02-16 | KAUAI ISLAND UTILITY - PORT ALLEN — high-priority violation on file | ELEELE, Kauai, HI | Pass | State |
| 2026-02-09 | KAUAI ISLAND UTILITY - KAPAIA — high-priority violation on file | LIHUE, Kauai, HI | Pass | State |
| 2026-01-23 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2026-01-22 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2026-01-20 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2026-01-19 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2026-01-16 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2026-01-15 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2026-01-14 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Fail | State |
| 2026-01-13 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.