EPA Air · stack tests by county and year
Air-emissions stack tests in Honolulu County, Hawaii, 2025
- 33Stack 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 Honolulu County, Hawaii 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 Honolulu County facility page.
Honolulu County, Hawaii, 2025
Air-emissions stack tests in Honolulu County, other years
Air-emissions stack tests recorded in Honolulu County, Hawaii, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-30 | HAWAIIAN CEMENT - HALAWA | Pass | State |
| 2025-11-14 | ALOHA PETROLEUM - HONOLULU | Pass | State |
| 2025-11-12 | ALOHA PETROLEUM - CIP | Pass | State |
| 2025-11-06 | HECO - WAIAU | Pass | State |
| 2025-11-03 | HECO - KAHE | Pass | State |
| 2025-09-30 | HECO - KAHE | Pass | State |
| 2025-09-25 | HPOWER | Pass | State |
| 2025-09-23 | GRACE PACIFIC - KAPAA QUARRY | Pass | State |
| 2025-09-12 | HECO - WAIAU | Pass | State |
| 2025-08-14 | PAR - REFINERY — high-priority violation on file | Fail | State |
| 2025-08-13 | PAR - REFINERY — high-priority violation on file | Fail | State |
| 2025-08-12 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-08-11 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-08-08 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-08-07 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-08-06 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-06-30 | HECO - KAHE | Pass | State |
| 2025-06-18 | HECO - KAHE | Pass | State |
| 2025-05-22 | HECO - WAIAU | Pass | State |
| 2025-05-13 | HPOWER | Pass | State |
| 2025-05-08 | HECO - KAHE | Pass | State |
| 2025-05-01 | HECO - SCHOFIELD — high-priority violation on file | Pass | State |
| 2025-04-28 | HECO - CAMPBELL INDUSTRIAL PARK | Pass | State |
| 2025-04-16 | U.S. NAVY - PEARL HARBOR — high-priority violation on file | Pass | State |
| 2025-03-31 | HECO - KAHE | Pass | State |
| 2025-03-13 | HECO - WAIAU | Pass | State |
| 2025-02-12 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-02-11 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-01-27 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-01-24 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-01-23 | PAR - REFINERY — high-priority violation on file | Fail | State |
| 2025-01-22 | PAR - REFINERY — high-priority violation on file | Pass | State |
| 2025-01-21 | PAR - REFINERY — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.