EPA Air · stack tests by state, industry and year

Chemical manufacturing (NAICS 3251): stack tests in Washington, 2017

• 38Stack 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 2017 at a Washington source whose primary industry code is NAICS 3251. A facility filing more than one industry code is counted under the first one on its record.

Chemical manufacturing (NAICS 3251) in Washington, other years

• 2025 12
• 2024 17
• 2023 15
• 2022 20
• 2021 11
• 2020 18
• 2019 49
• 2018 39

Other industries in Washington, 2017

• Paper manufacturing (NAICS 3221) 106
• Petroleum and coal products manufacturing (NAICS 3241) 40
• Utilities (NAICS 2211) 35
• NAICS 9999 29
• Nonmetallic mineral product manufacturing (NAICS 3272) 27
• National security and international affairs (NAICS 9281) 20
• Pipeline transportation (NAICS 4862) 19
• Chemical manufacturing (NAICS 3252) 14
• Mining and quarrying (NAICS 2123) 14
• Wood product manufacturing (NAICS 3211) 13
• Food manufacturing (NAICS 3114) 11
• Educational services (NAICS 6113) 8
• Utilities (NAICS 2213) 7
• Electrical equipment and appliance manufacturing (NAICS 3359) 6
• Primary metal manufacturing (NAICS 3313) 5
• Computer and electronic product manufacturing (NAICS 3344) 4
• Primary metal manufacturing (NAICS 3311) 4
• Transportation equipment manufacturing (NAICS 3364) 4
• Support activities for transportation (NAICS 4883) 3
• Food manufacturing (NAICS 3119) 3
• Waste management and remediation (NAICS 5622) 3

Air-emissions stack tests recorded in Washington, 2017

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.