EPA Air · stack tests by state, industry and year

Utilities (NAICS 2213): stack tests in Wisconsin, 2025

• 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 2025 at a Wisconsin source whose primary industry code is NAICS 2213. A facility filing more than one industry code is counted under the first one on its record.

Utilities (NAICS 2213) in Wisconsin, other years

• 2026 4
• 2024 8
• 2023 13
• 2022 6
• 2021 8
• 2020 10
• 2019 8
• 2018 17
• 2017 13

Other industries in Wisconsin, 2025

• Utilities (NAICS 2211) 89
• Paper manufacturing (NAICS 3221) 21
• Primary metal manufacturing (NAICS 3315) 20
• Petroleum and coal products manufacturing (NAICS 3241) 12
• Chemical manufacturing (NAICS 3251) 10
• Waste management and remediation (NAICS 5622) 8
• Printing and related support (NAICS 3231) 7
• Utilities (NAICS 2212) 7
• Educational services (NAICS 6113) 6
• Nonmetallic mineral product manufacturing (NAICS 3274) 6
• Merchant wholesalers, nondurable goods (NAICS 4247) 5
• Pipeline transportation (NAICS 4862) 5
• Nonmetallic mineral product manufacturing (NAICS 3271) 4
• Nonmetallic mineral product manufacturing (NAICS 3272) 4
• Paper manufacturing (NAICS 3222) 4
• Plastics and rubber products manufacturing (NAICS 3261) 4
• Food manufacturing (NAICS 3119) 3
• Food manufacturing (NAICS 3115) 3

Air-emissions stack tests recorded in Wisconsin, 2025

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.