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 |
|---|---|---|
| 3M AUTO DISMANTLERS | Minor source | No |
| 3M COMPANY | Major source | No |
| 3M COMPANY | Major source | No |
| 3M ESPE DENTAL PRODUCTS DIVISION | Minor source | No |
| 3M OAK HILLS | Synthetic minor source | No |
| 4 WHEEL PARK PERFORMANCE CENTER | Minor source | No |
| 99 CENT | Minor source | No |
| 99 CENT | Minor source | No |
| A & A TOWING & TRANSPORTATION | Minor source | No |
| A & B AUTO ELECTRIC & SMOG CHECK | Minor source | No |
| A GERMAN AUTO PARTS & SERVICE | Minor source | No |
| A LOT GELATO AND MORE | Minor source | No |
| A NEW WAY AUTO SERVICE & REPAIR | Minor source | No |
| A SAMBADO & SON INC | Synthetic minor source | No |
| A TEICHERT & SON | Synthetic minor source | No |
| A- AUTO SALVAGE | Minor source | No |
| A-1 AUTO SALES AND DISMANTLER | Minor source | No |
| A-1 AUTO WRECKING | Minor source | No |
| A. C. PLATING | Minor source | No |
| A. J. DIANI CONSTRUCTION (UNION SCHOOL) | Minor source | No |
| A. LA ROCCA SEAFOOD | Minor source | No |
| A&H AUTO SERVICE | Minor source | No |
| AAA DODGE TRUCK & VAN | Minor source | No |
| AAA FURNACE & AC CO | Minor source | No |
| AAA TRUCK PARTS WRECKING | Minor source | No |
| AB&I FOUNDRY | Major source | Yes |
| ABBOTT CARDIOVASCULAR SYSTEMS | Major source | No |
| AC&S- CONTRACTOR | Minor source | No |
| ACME FILL CORPORATION | Major source | Yes |
| ACTION ENVIRONMENTAL ENTERPRISES | Minor source | No |
| ACTOKLEEN | Minor source | No |
| ACURA HONDA DISMANTLING INC | Minor source | No |
| ADAMS SPECIALTY OILS INC. | Major source | No |
| ADESA CALIFORNIA LLC | Synthetic minor source | No |
| ADVANCE AUTO CARE | Minor source | No |
| ADVANCE PAPER BOX CO | Major source | No |
| ADVANCE TRUCK PAINTING INC | Major source | No |
| ADVANCED COATING & SILKSCREENING | Minor source | No |
| ADVANCED FOAM PLASTICS | Minor source | No |
| ADVANCED INDUSTRIAL COATINGS | Synthetic minor source | No |
| ADVANCED MICRO DEVICES | Minor source | No |
| ADVANCED PHOTONIX | Minor source | No |
| ADVANTAGE MAILING | Minor source | No |
| ADVENTIST HLTH REDBUD COMMUNITY HOSPITAL | Minor source | No |
| AERA ENERGY | Major source | Yes |
| AERA ENERGY | Major source | Yes |
| AERA ENERGY - KERN MIDWAY | Major source | Yes |
| AERA ENERGY LLC | Major source | No |
| AERA ENERGY LLC | Major source | No |
| AERA ENERGY LLC | Major source | Yes |
| AERA ENERGY LLC | Major source | No |
| AERO CHROME PLATING | Minor source | No |
| AEROCRAFT HEAT TREATING CO INC | Major source | No |
| AES ALAMITOS STATION, LLC | Major source | No |
| AES HUNTINGTON BEACH LLC | Major source | No |
| AFTER HOURS FORMAL WEAR | Minor source | No |
| AG-FUME SERVICE INC | Major source | No |
| AG-FUME SERVICE INC | Major source | No |
| AGRI-WORLD COOPERATIVE | Major source | No |
| AGRIUM U.S.,INC | Major source | No |
| AIR INDUSTRIES COMPANY, LLC | Minor source | Yes |
| AIR LIQUID LARGE INDUSTRIES US, LP | Major source | No |
| AIR LIQUIDE CORP | Minor source | No |
| AIR LIQUIDE LARGE INDUSTRIES US LP | Major source | Yes |
| AIR PROD & CHEM INC | Major source | No |
| AIR PRODUCTS AND CHEMICALS INC | Major source | No |
| AIR PRODUCTS MANUFACTURING, LLC | Major source | Yes |
| AIR PRODUCTS WEST COAST HYDROGEN LLC | No | |
| AIRCRAFT X-RAY LABS INC | Minor source | No |
| AIRPORT INN | Minor source | No |
| AIRSORT EXTREME | Minor source | No |
| AKZO COATINGS INC | Minor source | No |
| AL AUTO IMPORTS | Minor source | No |
| AL'S GARDEN ART INC | Minor source | No |
| ALBER SEAFOODS | Minor source | No |
| ALCO IRON AND METAL COMPANY | Minor source | No |
| ALL AMERICAN ASPHALT- UNIT #1 | Major source | No |
| ALL AMERICAN OIL & GAS CO | Major source | No |
| ALL AMERICAN OIL & GAS INC | Major source | Yes |
| ALL AUTOMOTIVE | Minor source | No |
| ALL SHORES SEAFOOD | Minor source | No |
| ALL TRUCK PARTS | Minor source | No |
| ALL-POWER AMERICA LLC | Minor source | No |
| ALLERGAN, INC | Major source | No |
| ALLIED ENVIRONMENTAL INC- ORLAND | Minor source | No |
| ALLIED ENVIRONMENTAL INC- ROSEVILLE | Minor source | No |
| ALLIED IMPERIAL LANDFILL | Major source | No |
| ALLIED WASTE - OTAY LANDFILL | Major source | No |
| ALLIED WASTE-SYCAMORE LANDFILL | Major source | No |
| ALOGONQUIN POWER SANGER LLC | Major source | Yes |
| ALON BAKERSFIELD REFINING | Major source | Yes |
| ALON BAKERSFIELD REFINING | Major source | No |
| ALON BAKERSFIELD REFINING | Major source | No |
| ALTAGAS RIPON ENERGY INC | Major source | No |
| ALTAGAS SAN JOAQUIN ENERGY INC | Major source | No |
| ALTAGAS SAN JOAQUIN ENERGY INC | Major source | No |
| ALTAGAS SAN JOAQUIN ENERGY INC | Major source | No |
| ALVIN'S AUTO RECYCLING INC | Minor source | No |
| ALZA CORPORATION | Minor source | No |
| AM/PM ARCO | Minor source | No |
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Figures from EPA’s ICIS-AIR download.