EPA Air · stack tests by state, industry and year

Utilities (NAICS 2211): stack tests in California, 2020

• 5,334Stack 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 2020 at a California source whose primary industry code is NAICS 2211. A facility filing more than one industry code is counted under the first one on its record.

Utilities (NAICS 2211) in California, other years

• 2026 327
• 2025 2,709
• 2024 10,823
• 2023 2,798
• 2022 4,647
• 2021 6,630
• 2019 1,869
• 2018 2,180
• 2017 3,566

Other industries in California, 2020

• Oil and gas extraction (NAICS 2111) 5,307
• Nonmetallic mineral product manufacturing (NAICS 3272) 985
• Utilities (NAICS 2213) 593
• Petroleum and coal products manufacturing (NAICS 3241) 390
• Food manufacturing (NAICS 3114) 384
• Food manufacturing (NAICS 3119) 300
• Waste management and remediation (NAICS 5622) 293
• Executive and legislative government (NAICS 9211) 263
• NAICS 9999 255
• Food manufacturing (NAICS 3115) 236
• Plastics and rubber products manufacturing (NAICS 3261) 111
• Utilities (NAICS 2212) 96
• Beverage and tobacco manufacturing (NAICS 3121) 90
• Animal production (NAICS 1121) 67
• Pipeline transportation (NAICS 4862) 59
• Nonmetallic mineral product manufacturing (NAICS 3279) 57
• Food manufacturing (NAICS 3116) 48
• Food manufacturing (NAICS 3112) 48
• Chemical manufacturing (NAICS 3253) 41
• Merchant wholesalers, nondurable goods (NAICS 4247) 41
• Food manufacturing (NAICS 3111) 32
• Hospitals (NAICS 6221) 26
• Mining and quarrying (NAICS 2123) 22
• Fabricated metal product manufacturing (NAICS 3321) 20
• Paper manufacturing (NAICS 3222) 19
• Pipeline transportation (NAICS 4861) 18
• Waste management and remediation (NAICS 5629) 18
• Chemical manufacturing (NAICS 3251) 16
• Nonmetallic mineral product manufacturing (NAICS 3273) 14
• Administration of environmental programs (NAICS 9241) 14
• National security and international affairs (NAICS 9281) 11
• Fabricated metal product manufacturing (NAICS 3328) 11
• Chemical manufacturing (NAICS 3252) 10
• Justice, public order and safety (NAICS 9221) 10
• Fabricated metal product manufacturing (NAICS 3324) 10
• Fabricated metal product manufacturing (NAICS 3323) 9
• Primary metal manufacturing (NAICS 3313) 9
• NAICS 4523 9
• Food manufacturing (NAICS 3118) 8
• Amusement, gambling and recreation (NAICS 7131) 8
• Miscellaneous manufacturing (NAICS 3391) 7
• Chemical manufacturing (NAICS 3256) 5
• Transportation equipment manufacturing (NAICS 3364) 5
• Support activities for transportation (NAICS 4881) 4
• Nonmetallic mineral product manufacturing (NAICS 3274) 4
• Wood product manufacturing (NAICS 3219) 3
• Waste management and remediation (NAICS 5621) 3
• Furniture and related product manufacturing (NAICS 3372) 3

Air-emissions stack tests recorded in California, 2020

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.