EPA Air · stack tests by county, year by year

Air-emissions stack tests in Calhoun County, Alabama, year by year

• 355Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every year on record for Calhoun County, Alabama, most recent first. Each year page lists the events recorded at sources in the county that year.

Calhoun County, Alabama, by year

• 2026 23
• 2025 47
• 2024 43
• 2023 43
• 2022 50
• 2021 36
• 2020 45
• 2019 28
• 2018 28
• 2017 12

All sources in Calhoun County →

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.