EPA Air · by state
Air-emissions sources in California
- 2,144Facilities
By emissions classification in California
High-priority violations in California
238 sources in California carry a current high-priority Clean Air Act violation.
Counties in California
- Alameda County 87
- Amador County 5
- Butte County 7
- Colusa County 7
- Contra Costa County 81
- El Dorado County 8
- Fresno County 55
- Glenn County 4
- Humboldt County 9
- Imperial County 41
- Kern County 164
- Kings County 23
- Lassen County 3
- Los Angeles County 390
- Madera County 22
- Marin County 5
- Mendocino County 3
- Merced County 23
- Modoc County 4
- Monterey County 14
- Napa County 5
- Orange County 110
- Placer County 42
- Riverside County 65
- Sacramento County 97
- San Bernardino County 123
- San Diego County 126
- San Francisco County 36
- San Joaquin County 74
- San Luis Obispo County 16
- San Mateo County 34
- Santa Barbara County 136
- Santa Clara County 51
- Santa Cruz County 5
- Shasta County 22
- Solano County 31
- Sonoma County 23
- Stanislaus County 40
- Sutter County 8
- Tehama County 11
- Tulare County 19
- Tuolumne County 4
- Undetermined County 32
- Ventura County 41
- Yolo County 16
- Yuba County 8
Industries in California
Sources are grouped by the first industry code on the facility record.
- NAICS 9999 343
- Oil and gas extraction (NAICS 2111) 216
- Utilities (NAICS 2211) 209
- Waste management and remediation (NAICS 5622) 75
- Petroleum and coal products manufacturing (NAICS 3241) 63
- Repair and maintenance (NAICS 8111) 52
- Fabricated metal product manufacturing (NAICS 3328) 45
- Merchant wholesalers, nondurable goods (NAICS 4247) 39
- Utilities (NAICS 2213) 39
- Hospitals (NAICS 6221) 35
- Plastics and rubber products manufacturing (NAICS 3261) 35
- Beverage and tobacco manufacturing (NAICS 3121) 32
- Printing and related support (NAICS 3231) 29
- Miscellaneous manufacturing (NAICS 3399) 28
- Paper manufacturing (NAICS 3222) 26
- Transportation equipment manufacturing (NAICS 3364) 24
- Food manufacturing (NAICS 3114) 23
- Waste management and remediation (NAICS 5629) 23
- Pipeline transportation (NAICS 4861) 22
- Pipeline transportation (NAICS 4862) 21
- Food manufacturing (NAICS 3118) 21
- National security and international affairs (NAICS 9281) 21
- Mining and quarrying (NAICS 2123) 21
- Wood product manufacturing (NAICS 3219) 19
- Nonmetallic mineral product manufacturing (NAICS 3273) 18
- Fabricated metal product manufacturing (NAICS 3324) 18
- Specialty trade contractors (NAICS 2389) 17
- Educational services (NAICS 6113) 16
- Chemical manufacturing (NAICS 3251) 15
- Furniture and related product manufacturing (NAICS 3372) 15
- Chemical manufacturing (NAICS 3255) 14
- Computer and electronic product manufacturing (NAICS 3344) 13
- Food manufacturing (NAICS 3119) 13
- Chemical manufacturing (NAICS 3252) 13
- Justice, public order and safety (NAICS 9221) 13
- Chemical manufacturing (NAICS 3254) 12
- Transportation equipment manufacturing (NAICS 3366) 12
- Primary metal manufacturing (NAICS 3315) 12
- Primary metal manufacturing (NAICS 3313) 11
- Agriculture and forestry support (NAICS 1151) 11
- Warehousing and storage (NAICS 4931) 11
- Furniture and related product manufacturing (NAICS 3371) 11
- Fishing, hunting and trapping (NAICS 1141) 11
- Nonmetallic mineral product manufacturing (NAICS 3272) 10
- Food manufacturing (NAICS 3115) 10
- Fabricated metal product manufacturing (NAICS 3323) 10
- Pipeline transportation (NAICS 4869) 10
- Miscellaneous manufacturing (NAICS 3391) 10
- NAICS 4543 10
- Motor vehicle and parts dealers (NAICS 4411) 10
- Personal and laundry services (NAICS 8123) 9
- Nonmetallic mineral product manufacturing (NAICS 3271) 9
- Space research and technology (NAICS 9271) 9
- Fabricated metal product manufacturing (NAICS 3321) 9
- Building construction (NAICS 2361) 8
- Building construction (NAICS 2362) 8
- Electrical equipment and appliance manufacturing (NAICS 3359) 8
- Chemical manufacturing (NAICS 3253) 8
- Transportation equipment manufacturing (NAICS 3362) 8
- Machinery manufacturing (NAICS 3333) 7
- Fabricated metal product manufacturing (NAICS 3327) 7
- Computer and electronic product manufacturing (NAICS 3345) 7
- Machinery manufacturing (NAICS 3339) 7
- Nonmetallic mineral product manufacturing (NAICS 3279) 7
- Executive and legislative government (NAICS 9211) 6
- Chemical manufacturing (NAICS 3259) 6
- Fabricated metal product manufacturing (NAICS 3329) 6
- Machinery manufacturing (NAICS 3335) 6
- NAICS 4521 6
- Nonmetallic mineral product manufacturing (NAICS 3274) 6
- Plastics and rubber products manufacturing (NAICS 3262) 6
- Administration of environmental programs (NAICS 9241) 6
- Textile mills (NAICS 3133) 5
- Crop production (NAICS 1113) 5
- Food manufacturing (NAICS 3112) 5
- Waste management and remediation (NAICS 5621) 5
- Support activities for transportation (NAICS 4881) 5
- Electrical equipment and appliance manufacturing (NAICS 3353) 5
- Crop production (NAICS 1112) 4
- Mining and quarrying (NAICS 2122) 4
Air inspections in California, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 1,920
- 2025 2,487
- 2024 2,773
- 2023 2,852
- 2022 2,071
- 2021 2,109
- 2020 2,180
- 2019 2,688
- 2018 1,888
- 2017 2,222
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| UNOCAL-GUADALUPE-CENTRAL COAST GROUP | Synthetic minor source | No |
| US ARMY - FORT IRWIN - NTC | Major source | No |
| US BEALE - GENERAL SOURCE | Minor source | No |
| US BORAX & CHEMICAL | Major source | No |
| US GOVT, VETERANS ADMINISTRATION MED CTR | Major source | No |
| US GOVT, VETERANS AFFAIRS MEDICAL CENTER | Major source | No |
| US GYPSUM CO - PLASTER CITY | Major source | No |
| US MINE CO. - IONE PLANT | Synthetic minor source | No |
| US OIL & GAS | Synthetic minor source | No |
| US PIPE & FOUNDRY CO | Minor source | No |
| US POLE | Minor source | No |
| USA WASTE OF CA - EL SOBRANTE LANDFILL | Major source | No |
| USAF - BEALE PAVE PAWS | Minor source | No |
| USAF - EDWARDS AFB_(AF RESEARCH LAB) | Major source | No |
| USAF - FTC EDWARDS | Major source | No |
| USMC - AGCC 29 PALMS | Synthetic minor source | No |
| USMC - YERMO LOGISTICS CNTR | Major source | No |
| USN AIR STATION NORIS | Major source | No |
| USN NAV STA-32ND ST (SIMA) | Minor source | No |
| USN SUPERVISOR OF SHIPBUILDING-SUPSHIPS | Minor source | No |
| USNAVAL AIR WEAPONS STN | Major source | No |
| USNAVAL- LEMOORE | Major source | No |
| USS-POSCO INDUSTRIES | Major source | No |
| UWCD/EL RIO BOOSTER PLANT | Minor source | No |
| V SATTAI WINERY | Minor source | Yes |
| V&O AUTO DISMANTLER | Minor source | No |
| VA GREATER LOS ANGELES HEALTHCARE SYS | Major source | No |
| VA MEDICAL CENTER | Major source | Yes |
| VACMET INC | Major source | No |
| VALENCE SURFACE TECHNOLOGIES - LYNWOOD | Major source | No |
| VALENCIA SHELL | Minor source | No |
| VALERO BENICIA ASPHALT PLANT | Major source | Yes |
| VALERO REFINING COMPANY - CALIFORNIA | Major source | Yes |
| VALERO WILMINGTON ASPHALT PLANT | Major source | No |
| VALLEY FINE FOODS | Minor source | No |
| VALLEY-TODECO CO | Minor source | No |
| VANDENBERG AIR FORCE BASE, 30 CES/CEA | Major source | No |
| VANDERLANS & SONS, INC. | Synthetic minor source | No |
| VAQUERO ENERGY INC | Synthetic minor source | No |
| VAQUERO ENERGY INC | Major source | No |
| VBC #1 GAS EXTRACTION WELL | Minor source | No |
| VBC #2 GAS EXTRACTION WELL | Minor source | No |
| VENOCO-CARPINTERIA-GAS PLANT | Major source | No |
| VENOCO-ELLWOOD (BEACHFRONT LEASE) | Major source | No |
| VENOCO-ELLWOOD MARINE TERMINAL-JOVALAN | Major source | No |
| VENOCO-ELLWOOD MVFF | Synthetic minor source | No |
| VENOCO-ELLWOOD-ELLWOOD ONSHORE FACILITY | Major source | No |
| VENOCO-ELLWOOD-MARINE TERMINAL | Major source | No |
| VENOCO-ELLWOOD-PLATFORM HOLLY | Major source | No |
| VENOCO-ELLWOOD-SEEP CONTAINMENT_DEVICE | Major source | No |
| VERIZON DATA SERVICES, INC | Synthetic minor source | No |
| VERNON ENVIRONMENTAL RESPONSE TRUST | Major source | Yes |
| VERNON PUBLIC UTILITIES | Major source | No |
| VERNON PUBLIC UTILITIES | Major source | No |
| VERTIS INC. | Minor source | No |
| VICTOR VALLEY WASTEWATER RECLAMATION AUTHORITY | Synthetic minor source | No |
| VICTORY AUTO DISMANTLER | Minor source | No |
| VIE-DEL WINERY #1 | Major source | No |
| VIKING POOLS INC. | Major source | No |
| VILLA PORTOFINO | Minor source | No |
| VINTAGE PRODUCTION CALIFORNIA LLC | Minor source | No |
| VISALIA LANDFILL | Major source | No |
| VISTA METALS CORPORATION | Major source | No |
| VISTA PAINT CORP | Major source | No |
| VITACHROME GRAPHICS INC | Minor source | No |
| VITALCAR AUTO REPAIR | Minor source | No |
| VITATECH INTL INC | Major source | No |
| VITRO FLAT GLASS LLC | Major source | Yes |
| VOLKSWAGON-AUDI | Minor source | No |
| VOLVO & SAAB AUTO DISMANTLER INC | Minor source | No |
| VOLVO OF NATIONAL CITY | Minor source | No |
| VRSD OXNARD LANDFILLS | Major source | No |
| VULCAN MATERIALS COMPANY | Minor source | No |
| W. C. MALONEY INC | Minor source | No |
| W.D. SCHOCK CORP | Minor source | No |
| WADHAM ENERGY | Major source | No |
| WALBERG (DEMO OF TACO BELL) | Minor source | Yes |
| WALNUT CREEK AUTOPROS | Minor source | No |
| WALNUT CREEK ENERGY, LLC | Minor source | No |
| WALNUT ENERGY CENTER AUTHORITY | Major source | No |
| WARING PALMS (HOUSING DEVELOPMENT) | Minor source | No |
| WARREN E & P INC | Minor source | No |
| WASTE MANAGEMENT OF ALAMEDA COUNTY | Major source | Yes |
| WASTE MGMT DISP &RECY SERVS INC (BRADLEY | Major source | No |
| WASTE SOLUTION GROUP OF SAN BENITO, LLC | Major source | No |
| WEBER CREEK QUARRY | Minor source | No |
| WEBER METALS INC | Major source | No |
| WEDO GRAPHICS INC | Major source | No |
| WELLHEAD POWER PANOCHE, LLC | Synthetic minor source | Yes |
| WEST AMERICAN RUBBER COMPANY, LLC | Minor source | No |
| WEST BAY SEAFOOD COMPANY, INC | Minor source | No |
| WEST CENTRAL LANDFILL | Major source | No |
| WEST COAST GRAPE FARMING | Synthetic minor source | No |
| WEST COAST TOOLING | Minor source | No |
| WEST CONTRA COSTA SANITARY LANDFILL | Major source | Yes |
| WEST KERN WATER DISTRICT | Major source | No |
| WEST KERN WATER DISTRICT | Major source | No |
| WEST KERN WATER DISTRICT | Major source | No |
| WEST KERN WATER DISTRICT | Major source | No |
| WEST VALLEY HULLING CO | Major source | No |
Figures from EPA’s ICIS-AIR download.