EPA Air · stack tests by state and year
Air-emissions stack tests in Hawaii, 2025
- 53Stack 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 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Hawaii, 2025
Hawaii, other years
Air-emissions stack tests recorded in Hawaii, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-30 | HAWAIIAN CEMENT - HALAWA | AIEA, Honolulu, HI | Pass | State |
| 2025-11-19 | HELCO - KEAHOLE — high-priority violation on file | KAILUA KONA, Hawaii, HI | Pass | State |
| 2025-11-14 | ALOHA PETROLEUM - HONOLULU | HONOLULU, Honolulu, HI | Pass | State |
| 2025-11-13 | MECO - MAALAEA | MAALAEA, Maui, HI | Pass | State |
| 2025-11-12 | ALOHA PETROLEUM - CIP | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-11-07 | MECO - MAALAEA | MAALAEA, Maui, HI | Pass | State |
| 2025-11-06 | HECO - WAIAU | PEARL CITY, Honolulu, HI | Pass | State |
| 2025-11-05 | MECO - MAALAEA | MAALAEA, Maui, HI | Pass | State |
| 2025-11-04 | MECO - MAALAEA | MAALAEA, Maui, HI | Pass | State |
| 2025-11-03 | HECO - KAHE | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-10-21 | MECO - PALAAU | PALAAU, Maui, HI | Pass | State |
| 2025-10-21 | MECO - PALAAU | PALAAU, Maui, HI | Pass | State |
| 2025-10-14 | MECO - PALAAU | PALAAU, Maui, HI | Pass | State |
| 2025-09-30 | HECO - KAHE | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-09-25 | HPOWER | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-09-23 | GRACE PACIFIC - KAPAA QUARRY | KAILUA, Honolulu, HI | Pass | State |
| 2025-09-12 | HECO - WAIAU | PEARL CITY, Honolulu, HI | Pass | State |
| 2025-08-15 | HELCO - KEAHOLE — high-priority violation on file | KAILUA KONA, Hawaii, HI | Pass | State |
| 2025-08-15 | HELCO - KEAHOLE — high-priority violation on file | KAILUA KONA, Hawaii, HI | Pass | State |
| 2025-08-14 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Fail | State |
| 2025-08-13 | HELCO - WAIMEA | KAMUELA, Hawaii, HI | Pass | State |
| 2025-08-13 | HELCO - OULI | SOUTH KOHALA, Hawaii, HI | Pass | State |
| 2025-08-13 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Fail | State |
| 2025-08-12 | HELCO - KAPUA | KAPUA, Hawaii, HI | Pass | State |
| 2025-08-12 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-08-11 | HELCO - OULI | SOUTH KOHALA, Hawaii, HI | Pass | State |
| 2025-08-11 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-08-08 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-08-07 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-08-06 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-07-24 | MECO - MIKI BASIN | LANAI CITY, Maui, HI | Pass | State |
| 2025-07-17 | MECO - MIKI BASIN | LANAI CITY, Maui, HI | Pass | State |
| 2025-06-30 | HECO - KAHE | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-06-18 | HECO - KAHE | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-06-04 | MAHIPAPA | KOLOA, Kauai, HI | Pass | State |
| 2025-05-22 | HECO - WAIAU | PEARL CITY, Honolulu, HI | Pass | State |
| 2025-05-13 | HPOWER | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-05-08 | HECO - KAHE | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-05-01 | HECO - SCHOFIELD — high-priority violation on file | WAHIAWA, Honolulu, HI | Pass | State |
| 2025-04-28 | HECO - CAMPBELL INDUSTRIAL PARK | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-04-16 | U.S. NAVY - PEARL HARBOR — high-priority violation on file | PEARL HARBOR, Honolulu, HI | Pass | State |
| 2025-03-31 | HECO - KAHE | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-03-13 | HECO - WAIAU | PEARL CITY, Honolulu, HI | Pass | State |
| 2025-03-04 | MECO - MAALAEA | MAALAEA, Maui, HI | Pass | State |
| 2025-02-14 | KAUAI ISLAND UTILITY - PORT ALLEN — high-priority violation on file | ELEELE, Kauai, HI | Pass | State |
| 2025-02-12 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-02-11 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-02-11 | KAUAI ISLAND UTILITY - KAPAIA — high-priority violation on file | LIHUE, Kauai, HI | Pass | State |
| 2025-01-27 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-01-24 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-01-23 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Fail | State |
| 2025-01-22 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2025-01-21 | 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.