EPA Air · stack tests by county and year
Air-emissions stack tests in San Bernardino County, California, 2026
- 19Stack 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 San Bernardino County, California 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 San Bernardino County facility page.
San Bernardino County, California, 2026
- Inspections 54
Air-emissions stack tests in San Bernardino County, other years
Air-emissions stack tests recorded in San Bernardino County, California, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-07-09 | CEMEX LLC - BLACK MT. QUARRY | Pass | Local |
| 2026-05-01 | SO CAL GAS - NEWBERRY SPRINGS | Pass | Local |
| 2026-04-30 | CAL PORTLAND CEMENT | Pass | Local |
| 2026-04-28 | SOUTHERN CALIFORNIA EDISON | Pass | Local |
| 2026-04-22 | SO CAL GAS - SO. NEEDLES | Pass | Local |
| 2026-04-21 | SO CAL GAS - NO. NEEDLES | Pass | Local |
| 2026-04-01 | IVANPAH I, II, III | Pass | Local |
| 2026-04-01 | IVANPAH I, II, III | Pass | Local |
| 2026-04-01 | IVANPAH I, II, III | Pass | Local |
| 2026-03-24 | SO CAL GAS - NO. NEEDLES | Pass | Local |
| 2026-03-24 | SO CAL GAS - NO. NEEDLES | Pass | Local |
| 2026-03-19 | USMC - AGCC 29 PALMS | Pass | Local |
| 2026-03-19 | USMC - AGCC 29 PALMS | Pass | Local |
| 2026-03-19 | USMC - AGCC 29 PALMS | Pass | Local |
| 2026-03-18 | USMC - AGCC 29 PALMS | Pass | Local |
| 2026-03-18 | USMC - AGCC 29 PALMS | Pass | Local |
| 2026-01-08 | HIGH DESERT POWER PROJECT, LLC | Pass | Local |
| 2026-01-08 | HIGH DESERT POWER PROJECT, LLC | Pass | Local |
| 2026-01-08 | HIGH DESERT POWER PROJECT, LLC | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.