EPA Air · stack tests by state, industry and year
Electrical equipment and appliance manufacturing (NAICS 3351): stack tests in California, 2025
- 4Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2025 at a California source whose primary industry code is NAICS 3351. A facility filing more than one industry code is counted under the first one on its record.
Electrical equipment and appliance manufacturing (NAICS 3351) in California, other years
Other industries in California, 2025
- Utilities (NAICS 2211) 2,709
- Oil and gas extraction (NAICS 2111) 1,287
- NAICS 9999 193
- Petroleum and coal products manufacturing (NAICS 3241) 177
- Food manufacturing (NAICS 3114) 146
- Food manufacturing (NAICS 3115) 111
- Nonmetallic mineral product manufacturing (NAICS 3279) 100
- Beverage and tobacco manufacturing (NAICS 3121) 94
- Waste management and remediation (NAICS 5622) 74
- Nonmetallic mineral product manufacturing (NAICS 3272) 67
- Utilities (NAICS 2213) 63
- Animal production (NAICS 1121) 52
- Merchant wholesalers, nondurable goods (NAICS 4247) 45
- Fabricated metal product manufacturing (NAICS 3324) 31
- Pipeline transportation (NAICS 4862) 31
- Justice, public order and safety (NAICS 9221) 20
- Mining and quarrying (NAICS 2123) 18
- Plastics and rubber products manufacturing (NAICS 3261) 16
- Food manufacturing (NAICS 3119) 12
- Waste management and remediation (NAICS 5629) 12
- Food manufacturing (NAICS 3111) 10
- Food manufacturing (NAICS 3116) 9
- Chemical manufacturing (NAICS 3252) 8
- Nonmetallic mineral product manufacturing (NAICS 3273) 8
- Fabricated metal product manufacturing (NAICS 3328) 6
- Crop production (NAICS 1113) 6
- NAICS 4523 6
- National security and international affairs (NAICS 9281) 6
- Personal and laundry services (NAICS 8129) 5
- Furniture and related product manufacturing (NAICS 3379) 5
- Pipeline transportation (NAICS 4861) 4
- Food manufacturing (NAICS 3118) 4
- Primary metal manufacturing (NAICS 3314) 4
- Paper manufacturing (NAICS 3222) 3
- Food manufacturing (NAICS 3112) 3
- Mining and quarrying (NAICS 2122) 3
- Hospitals (NAICS 6221) 3
- Chemical manufacturing (NAICS 3251) 3
- Administrative and support services (NAICS 5617) 3
Air-emissions stack tests recorded in California, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-11-19 | VERNON PUBLIC UTILITIES | LOS ANGELES, Los Angeles, CA | Pass | Local |
| 2025-08-19 | VERNON PUBLIC UTILITIES | LOS ANGELES, Los Angeles, CA | Pass | Local |
| 2025-02-12 | VERNON PUBLIC UTILITIES | LOS ANGELES, Los Angeles, CA | Pass | Local |
| 2025-02-11 | VERNON PUBLIC UTILITIES | LOS ANGELES, Los Angeles, CA | Pass | Local |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.