EPA Air · stack tests by county, year by year
Air-emissions stack tests in Johnson County, Iowa, year by year
- 105Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every year on record for Johnson County, Iowa, most recent first. Each year page lists the events recorded at sources in the county that year.
Johnson County, Iowa, by year
All sources in Johnson County →
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
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