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 |
|---|---|---|
| POTRERO HILLS LANDFILL, INC | Major source | Yes |
| PQ CORPORATION | Major source | No |
| PRAXAIR INC | Major source | No |
| PRAXAIR INC. | Minor source | No |
| PRECISION TUNE & AUTO | Minor source | No |
| PREGIS INNOVATIVE PACKAGING INC | Major source | No |
| PREPRODUCTION PLASTICS INC. | Major source | No |
| PRESS FORGE COMPANY | Major source | No |
| PRISON INDUSTRY AUTHORITY | Major source | No |
| PRISON INDUSTRY AUTHORITY-CORCORAN | Major source | No |
| PRO FLOW HEATING & COOLING | Minor source | No |
| PROCESS SOLUTIONS, DIV VEOLIA WATER NAM | Minor source | No |
| PROCESSES BY MARTIN INC | Minor source | No |
| PROCTER & GAMBLE | Major source | No |
| PROCTER & GAMBLE PAPER PRODUCTS | Major source | Yes |
| PROTECH MINERALS INC | Major source | No |
| PROVIDENCE SAINT JOHN'S HEALTH CENTER | Major source | No |
| PROVIDENCE ST JOSEPH MEDICAL CENTER | Major source | No |
| PT. PEDERNALAES/LOMPOC OIL/LOMPOC FEE | Major source | No |
| PT. PEDERNALES/LOMPOC OIL/ARKLEY FEE | Major source | No |
| PT. PEDERNALES/LOMPOC OIL/HILL LEASE | Major source | No |
| PT. PEDERNALES/LOMPOC OIL/IC ENGINES | Major source | No |
| PT. PEDERNALES/LOMPOC OIL/LA PURISIMA | Major source | No |
| PT. PEDERNALES/LOMPOC OIL/OIL & GAS | Major source | No |
| PT. PEDERNALES/LOMPOC OIL/ORCUTT FEE | Major source | No |
| PT. PEDERNALES/LOMPOC OIL/PLATFORM IRENE | Major source | No |
| PT.PEDERNALES/LOMPOC OIL/EEFSON LEASE | Major source | No |
| PT.PEDERNALES/LOMPOC OIL/JESUS MARIA | Major source | No |
| PT.PEDERNALES/LOMPOC OIL/JESUS MARIA A | Major source | No |
| PURISIMA HILLS LLC -H.P. BOYNE LEASE | Synthetic minor source | No |
| PUSATERI NUT COMPANY | Synthetic minor source | No |
| PYRAMID OIL COMPANY | Major source | No |
| QG PRINTING CORP | Major source | Yes |
| QUALITY & QUICK AUTO PARTS | Minor source | No |
| QUALITY ALUMINUM FORGE A DIV OF GEL IND | Minor source | No |
| QUALITY FABRICATION INC | Minor source | No |
| QUALITY FINISHING INC | Minor source | No |
| QUEMETCO INC | Major source | No |
| QUEST DIAGNOSTICS | Major source | No |
| R & B PAINTING & SANDBLASTING | Synthetic minor source | No |
| RAA AUTO ACTION | Minor source | No |
| RAINBOW FARMS | Major source | No |
| RAMADA | Minor source | No |
| RAMADA LIMITED AND SUITES | Minor source | No |
| RAMCAR BATTERIES INC | Minor source | No |
| RANCH JEEP RECYCLING | Minor source | No |
| RANCH MARINE RECYCLING | Minor source | No |
| RATTAN SPECIALIST INC | Minor source | No |
| RAY PRODUCTS INC | Minor source | No |
| REBUILDER'S PICK-N-PULL | Minor source | No |
| RECOLOGY OSTROM RD LANDFILL | Major source | No |
| RECOLOGY-HAY ROAD LANDFILL(NORCAL WASTE) | Major source | No |
| RECONSERVE OF CALIFORNIA - STOCKTON INC | Synthetic minor source | No |
| REDDING POWER PLANT_(CITY OF REDDING) | Major source | No |
| REDLINE PERFORMANCE AUTO DISMANTLING | Minor source | No |
| REDWOOD LANDFILL INC | Major source | Yes |
| REFRIGERANT EXCHANGE | Minor source | No |
| REICHHOLD INC - AZUSA FACILITY | Minor source | No |
| REINHOLD INDUSTRIES INC | Major source | No |
| REPUBLIC SERVICES OF SONOMA COUNTY | Major source | Yes |
| REPUBLIC SERVICES VASCO ROAD, LLC | Major source | Yes |
| RES-Q DISTRIBUTORS | Minor source | No |
| RESINART CORP | Minor source | No |
| RETAIL FACILITY (FRMLY JC PENNEY) | Minor source | No |
| RGF ENTERPRISES | Major source | No |
| RIALTO CONCRETE PRODUCTS | Minor source | No |
| RICHMOND WHOLESALE MEAT | Minor source | No |
| RIDEOUT MEMORIAL HOSPITAL | Minor source | Yes |
| RINCON ONSHORE FACILITY | Minor source | No |
| RIO BRAVO - ROCKLIN | Major source | No |
| RIO BRAVO FRESNO | Major source | Yes |
| RIO VISTA (HOUSING DEVELOPMENT) | Minor source | No |
| RIV CO WASTE MGMT BADLANDS LANDFILL | Major source | No |
| RIV CO, WASTE RESOURCES MGMT DIST, LAMB | Major source | No |
| RMC PACIFIC MATERIALS | Major source | No |
| ROBERT & SONS | Minor source | No |
| ROBERT'S AUTO SERVICE | Minor source | No |
| ROBINSON HELICOPTER CO INC | Major source | No |
| ROGERS AND ROGERS NISSAN DEALERSHIP | Minor source | No |
| ROHR, INC. | Major source | No |
| ROSEBURG FOREST PRODUCTS | Major source | No |
| ROSEVILLE AM/PM MINI MART (DEMOLISHED) | Minor source | Yes |
| ROSEVILLE ELECTRIC, ENERGY PARK | Major source | No |
| ROSEVILLE TOWING | Minor source | No |
| ROY E HANSON JR MFG CO | Minor source | No |
| ROYAL CABINETS | Major source | No |
| ROYAL PAPER BOX CO | Major source | No |
| ROYALE ENERGY, LLC (GODDARD #7-1 WELL) | Minor source | No |
| RR DONNELLEY | Major source | No |
| RUBEN'S GENERAL AUTO REPAIR | Minor source | No |
| RUSSELL CITY ENERGY CENTER | Major source | No |
| RYNCK GOODYEAR AUTO CENTER | Minor source | No |
| S & M SHELLFISH | Minor source | No |
| S&S PLATING & POLISHING | Minor source | No |
| SA RECYCLING | Major source | No |
| SAAB REPLAY | Minor source | No |
| SACRAMENTO AREA SEWER DISTRICT | Synthetic minor source | No |
| SACRAMENTO AUTO WRECKERS | Minor source | No |
| SACRAMENTO MUNICIPAL UTILITY DIST. FINANCING AUTHORITY DBA CAMPBELL POWER PLANT | Major source | No |
| SACRAMENTO MUNICIPAL UTILITY DIST. FINANCING AUTHORITY DBA CARSON POWER PLANT | Major source | No |
Figures from EPA’s ICIS-AIR download.