EPA Air · stack tests by state, industry and year

Support activities for transportation (NAICS 4883): stack tests in Washington, 2018

• 3Stack 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 2018 at a Washington source whose primary industry code is NAICS 4883. A facility filing more than one industry code is counted under the first one on its record.

Support activities for transportation (NAICS 4883) in Washington, other years

• 2024 4
• 2023 3
• 2021 8
• 2020 3
• 2017 3

Other industries in Washington, 2018

• Paper manufacturing (NAICS 3221) 91
• Petroleum and coal products manufacturing (NAICS 3241) 41
• Utilities (NAICS 2211) 40
• Chemical manufacturing (NAICS 3251) 39
• Chemical manufacturing (NAICS 3252) 21
• National security and international affairs (NAICS 9281) 20
• Nonmetallic mineral product manufacturing (NAICS 3272) 19
• Pipeline transportation (NAICS 4862) 19
• Transportation equipment manufacturing (NAICS 3364) 15
• NAICS 9999 12
• Utilities (NAICS 2213) 10
• Wood product manufacturing (NAICS 3211) 10
• Primary metal manufacturing (NAICS 3312) 9
• Computer and electronic product manufacturing (NAICS 3344) 6
• Primary metal manufacturing (NAICS 3313) 5
• Mining and quarrying (NAICS 2123) 4
• Wood product manufacturing (NAICS 3212) 4
• Nonmetallic mineral product manufacturing (NAICS 3273) 4
• Paper manufacturing (NAICS 3222) 3
• Food manufacturing (NAICS 3118) 3
• Food manufacturing (NAICS 3115) 3
• Food manufacturing (NAICS 3119) 3

Air-emissions stack tests recorded in Washington, 2018

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.