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 |
|---|---|---|
| HOGAN MFG INC | Synthetic minor source | No |
| HOGANS | Minor source | No |
| HOLLY SUGAR/SPRECKLES | Major source | No |
| HOLLYWOOD PARK LAND COMPANY LLC | Minor source | No |
| HOLMES WESTERN OIL CORPORATION | Minor source | No |
| HOLTVILLE DRINKING WATER SYSTEM | Minor source | No |
| HOLZ RUBBER COMPANY, INC | Synthetic minor source | Yes |
| HONEY LAKE POWER PLANT | Major source | No |
| HONEYWELL INTERNATIONAL INC | Major source | No |
| HONOR RANCHO WAYSIDE CANYON HOLDINGS LLC | Minor source | No |
| HOOD MFG INC | Major source | No |
| HOSES UNLIMITED | Minor source | No |
| HOT ROCKS SALON | Minor source | No |
| HOTEL ON MAIN STREET | Minor source | No |
| HOUWLING'S NURSERIES | Minor source | No |
| HOWARD CUSTOM BOATS | Minor source | No |
| HOWMET GLOBAL FASTENENING SYSTEMS INC. | Minor source | No |
| HOY TRADING, INC. | Minor source | No |
| HP HOOD, LLC | Synthetic minor source | Yes |
| HR TEXTRON | Minor source | No |
| HUGHSON NUT CO | Major source | No |
| HUMBOLDT SAWMILL COMPANY | Major source | Yes |
| HUNTER EDISON OIL DEVELOPMENT | Synthetic minor source | No |
| HUNTINGTON MEMORIAL HOSPITAL | Minor source | No |
| HYDRO EXTRUSION USA, LLC | Major source | No |
| HYUNDAI,ISUKI,KIA& NISSAN AUTO RECYCLING | Minor source | No |
| HYUNDAI,ISUZI,KIA& NISSAN AUTO RECYCLING | Minor source | No |
| IBA | Minor source | No |
| IBA | Minor source | No |
| IBY, LLC | Major source | No |
| ICL PRODUCTS (FORMERLY MONSANTO) | Minor source | Yes |
| IID - ECGS | Major source | No |
| IID - NILAND | Major source | No |
| IID - ROCKWOOD | Major source | No |
| ILLUMINA INC | Minor source | No |
| IMERYS MINERALS CALIFORNIA | Major source | No |
| IMPERIAL AUTOMOTIVE | Minor source | No |
| IMPERIAL COUNTY HISTORICAL SOCIETY | Minor source | No |
| IMPERIAL IRRIGATION DISTRICT/COACHELLA | Major source | No |
| IMPERIAL TOY | Minor source | Yes |
| IMPORT AUTO SPECIALISTS | Minor source | No |
| IMPORT PARTS HONDA & ACURA PARTS | Minor source | No |
| IMPRESS COMMUNICATIONS INC | Major source | No |
| IN-N-OUT RESTAURANT | Minor source | No |
| INDUSTRIAL CONTAINER SERVICES CA LLC | Major source | No |
| INEOS POLYPROPYLENE LLC | Major source | No |
| INERGY PROPANE LLC (ROGAS TRAIN LOADING) | Minor source | No |
| INFINITI PARTS | Minor source | No |
| INGLEWOOD CITY | Minor source | No |
| INGOMAR PACKING COMPANY | Major source | No |
| INJEX CORP | Minor source | No |
| INLAND EMPIRE REGIONAL COMPOSTING AUTHORITY | Major source | No |
| INLAND EMPIRE UTILITIES AGENCY | Major source | No |
| INLAND EMPIRE UTILITY AGENCY, A MUN WATER DIS | Major source | No |
| INSULFOAM | Major source | No |
| INSULFOAM | Major source | No |
| INTEL CORPORATION | Synthetic minor source | No |
| INTER-CITY CLEANERS | Synthetic minor source | No |
| INTERNATIONAL AEROSPACE COATINGS, INC. | Synthetic minor source | No |
| INTERNATIONAL DISPOSAL CORPORATION OF | Major source | Yes |
| INTERNATIONAL EXTRUSION CORP | Minor source | No |
| INTERNATIONAL PAPER | Synthetic minor source | No |
| INTERNATIONAL PAPER CO | Major source | No |
| INTERNATIONAL PAPER CO | Major source | No |
| INTERNATIONAL PAPER COMPANY | Synthetic minor source | No |
| INTERSTATE BRANDS (#76) | Minor source | No |
| INTERSTATE BRANDS (#81) | Minor source | No |
| INTERSTATE BRANDS CORP | Minor source | No |
| INTERSTATE BRANDS CORP (#75) | Minor source | No |
| INTERSTATE BRANDS CORP #24 | Minor source | No |
| INTERSTATE BRANDS CORP #70 | Minor source | No |
| INTERSTATE BRANDS CORP #71 | Minor source | No |
| INTERSTATE BRANDS CORP #74 | Minor source | No |
| IPS CORPORATION | Major source | No |
| IRVINE AUTO CARE | Minor source | No |
| IRVINE RANCH WATER DISTRICT | No | |
| IT CORP | Minor source | No |
| ITW CIP CALIFORNIA | Minor source | No |
| IVANPAH I, II, III | No | |
| J & W AUTO WRECKERS | Minor source | No |
| J G BOSWELL COMPANY | Synthetic minor source | No |
| J.B.I. INC | Major source | No |
| J&A SANTA MARIA LANDFILL | Other | Yes |
| J&A SANTA MARIA MARIAN MEDICAL | Other | Yes |
| J&B AUTO SERVICE | Minor source | No |
| J&M AUTO DISMANTLING | Minor source | No |
| JAGUAR FINISHING CO | Minor source | No |
| JAN-AL INNERPRIZES INC | Minor source | No |
| JAN-KENS | Minor source | No |
| JAPAN AUTO | Minor source | No |
| JAXON ENTERPRISES | Minor source | No |
| JAXON ENTERPRISES INC | Minor source | No |
| JBL INC | Minor source | No |
| JC SERVICE | Minor source | No |
| JCW CO | Synthetic minor source | No |
| JELD-WEN INC | Synthetic minor source | No |
| JELLY BELLY AKA (HERMAN GOELITZ CANDY) | Minor source | No |
| JENNINGS TECHNOLOGY CO,LLC | Synthetic minor source | No |
| JENSEN PRECAST | Major source | No |
| JF SHEA-AGGREGATE PRODUCTS | Synthetic minor source | No |
Figures from EPA’s ICIS-AIR download.