EPA Air · stack tests by state, industry and year

Pipeline transportation (NAICS 4869): stack tests in Alabama, 2026

• 7Stack 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 2026 at a Alabama source whose primary industry code is NAICS 4869. A facility filing more than one industry code is counted under the first one on its record.

Pipeline transportation (NAICS 4869) in Alabama, other years

• 2025 6
• 2024 6
• 2023 7
• 2022 6
• 2021 6
• 2020 7
• 2019 3
• 2018 4
• 2017 6

Other industries in Alabama, 2026

• Pipeline transportation (NAICS 4862) 89
• Paper manufacturing (NAICS 3221) 42
• Wood product manufacturing (NAICS 3212) 42
• Utilities (NAICS 2211) 33
• Chemical manufacturing (NAICS 3251) 22
• Primary metal manufacturing (NAICS 3311) 21
• Nonmetallic mineral product manufacturing (NAICS 3274) 20
• Primary metal manufacturing (NAICS 3314) 19
• Merchant wholesalers, nondurable goods (NAICS 4247) 18
• Nonmetallic mineral product manufacturing (NAICS 3279) 18
• Transportation equipment manufacturing (NAICS 3361) 13
• Wood product manufacturing (NAICS 3211) 12
• Oil and gas extraction (NAICS 2111) 11
• Nonmetallic mineral product manufacturing (NAICS 3273) 11
• Wood product manufacturing (NAICS 3219) 10
• Petroleum and coal products manufacturing (NAICS 3241) 8
• Primary metal manufacturing (NAICS 3315) 7
• Chemical manufacturing (NAICS 3252) 7
• Primary metal manufacturing (NAICS 3313) 6
• Computer and electronic product manufacturing (NAICS 3344) 5
• Waste management and remediation (NAICS 5622) 5
• Chemical manufacturing (NAICS 3259) 4
• Nonmetallic mineral product manufacturing (NAICS 3271) 4
• Chemical manufacturing (NAICS 3253) 3

Air-emissions stack tests recorded in Alabama, 2026

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.