EPA Air · stack tests by county and year
Air-emissions stack tests in San Bernardino County, California, 2025
- 74Stack 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 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 San Bernardino County facility page.
San Bernardino County, California, 2025
Air-emissions stack tests in San Bernardino County, other years
Air-emissions stack tests recorded in San Bernardino County, California, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-21 | USMC - YERMO LOGISTICS CNTR | Pass | Local |
| 2025-11-20 | USMC - YERMO LOGISTICS CNTR | Pass | Local |
| 2025-11-19 | USMC - YERMO LOGISTICS CNTR | Pass | Local |
| 2025-11-18 | USMC - YERMO LOGISTICS CNTR | Pass | Local |
| 2025-11-13 | ARROWHEAD REGIONAL MEDICAL CENTER — high-priority violation on file | Pass | Local |
| 2025-11-13 | ARROWHEAD REGIONAL MEDICAL CENTER — high-priority violation on file | Pass | Local |
| 2025-11-13 | ARROWHEAD REGIONAL MEDICAL CENTER — high-priority violation on file | Pass | Local |
| 2025-10-21 | PG&E- HINKLEY | Pass | Local |
| 2025-10-21 | CHEVRON MINING INC | Pass | Local |
| 2025-10-21 | OLS ENERGY CHINO | Pass | Local |
| 2025-10-20 | OLS ENERGY CHINO | Pass | Local |
| 2025-10-20 | OLS ENERGY CHINO | Pass | Local |
| 2025-10-07 | INLAND EMPIRE UTILITY AGENCY, A MUN WATER DIS | Pass | Local |
| 2025-10-06 | DANIEL COMPANY LLC | Pass | Local |
| 2025-09-29 | MITSUBISHI CEMENT CO — high-priority violation on file | Pass | Local |
| 2025-09-29 | MITSUBISHI CEMENT CO — high-priority violation on file | Pass | Local |
| 2025-09-11 | LOMA LINDA UNIVERSITY | Pass | Local |
| 2025-09-09 | LOMA LINDA UNIVERSITY | Pass | Local |
| 2025-08-14 | CEMEX LLC - BLACK MT. QUARRY | Pass | Local |
| 2025-07-10 | CEMEX LLC - BLACK MT. QUARRY | Pass | Local |
| 2025-07-10 | CEMEX LLC - BLACK MT. QUARRY | Pass | Local |
| 2025-06-17 | SB CO LANDFILL - VICTORVILLE | Pass | Local |
| 2025-05-23 | SO CAL GAS - NO. NEEDLES | Pass | Local |
| 2025-05-23 | SO CAL GAS - NO. NEEDLES | Pass | Local |
| 2025-05-22 | IVANPAH I, II, III | Pass | Local |
| 2025-05-22 | IVANPAH I, II, III | Pass | Local |
| 2025-05-21 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-05-08 | MITSUBISHI CEMENT CO — high-priority violation on file | Pass | Local |
| 2025-05-08 | MITSUBISHI CEMENT CO — high-priority violation on file | Pass | Local |
| 2025-04-11 | CAL PORTLAND CEMENT | Pass | Local |
| 2025-04-10 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-04-10 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pending | Local |
| 2025-04-10 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-04-03 | IVANPAH I, II, III | Pass | Local |
| 2025-04-03 | IVANPAH I, II, III | Pass | Local |
| 2025-04-03 | IVANPAH I, II, III | Pass | Local |
| 2025-04-01 | OMYA CALIFORNIA | Pass | Local |
| 2025-03-28 | SO CAL GAS - NO. NEEDLES | Pass | Local |
| 2025-03-28 | SO CAL GAS - NO. NEEDLES | Pass | Local |
| 2025-03-26 | SO CAL GAS - NEWBERRY SPRINGS | Pass | Local |
| 2025-03-24 | SO CAL GAS - ADELANTO | Pass | Local |
| 2025-03-20 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-03-19 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Fail | Local |
| 2025-03-19 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Fail | Local |
| 2025-03-17 | USMC - AGCC 29 PALMS | Pass | Local |
| 2025-03-17 | USMC - AGCC 29 PALMS | Pass | Local |
| 2025-03-13 | SO CAL GAS - NEWBERRY SPRINGS | Pass | Local |
| 2025-03-13 | PG&E- HINKLEY | Pass | Local |
| 2025-03-13 | PG&E- HINKLEY | Pending | Local |
| 2025-03-13 | PG&E- HINKLEY | Pass | Local |
| 2025-03-13 | PG&E- HINKLEY | Pass | Local |
| 2025-03-13 | PG&E- HINKLEY | Pass | Local |
| 2025-03-13 | PG&E- HINKLEY | Pass | Local |
| 2025-03-13 | PG&E- HINKLEY | Pass | Local |
| 2025-03-05 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-03-04 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-02-27 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-02-27 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-02-27 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-02-27 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-02-27 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-02-27 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-02-25 | CHEVRON MINING INC | Pass | Local |
| 2025-02-25 | CHEVRON MINING INC | Pass | Local |
| 2025-01-31 | SOUTHERN CALIFORNIA EDISON | Pass | Local |
| 2025-01-31 | SOUTHERN CALIFORNIA EDISON | Pass | Local |
| 2025-01-29 | SOUTHERN CALIFORNIA EDISON | Pass | Local |
| 2025-01-29 | SOUTHERN CALIFORNIA EDISON | Pass | Local |
| 2025-01-24 | HIGH DESERT POWER PROJECT, LLC | Pass | Local |
| 2025-01-24 | HIGH DESERT POWER PROJECT, LLC | Pass | Local |
| 2025-01-24 | HIGH DESERT POWER PROJECT, LLC | Pass | Local |
| 2025-01-16 | SEARLES VALLEY MINERALS (IMC CHEMICALS) — high-priority violation on file | Pass | Local |
| 2025-01-14 | INLAND EMPIRE UTILITY AGENCY, A MUN WATER DIS | Pass | Local |
| 2025-01-13 | INLAND EMPIRE UTILITY AGENCY, A MUN WATER DIS | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.