EPA Air · stack tests by county and year

Air-emissions stack tests in Howard County, Indiana, 2026

• 17Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Howard County, Indiana during 2026. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Howard County facility page.

Air-emissions stack tests in Howard County, other years

• 2025 35
• 2024 34
• 2023 3
• 2022 39
• 2021 22
• 2020 14
• 2019 32
• 2018 38
• 2017 27

Air-emissions stack tests recorded in Howard County, Indiana, 2026

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