EPA Air · stack tests by state and industry, year by year
NAICS 9999: stack tests in Utah, year by year
- 225Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every year on record for NAICS 9999 sources in Utah, most recent first. Each year page lists the events recorded that year.
NAICS 9999 in Utah, by year
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.