EPA Air · stack tests by state, industry and year

Nonmetallic mineral product manufacturing (NAICS 3273): stack tests in Montana, 2021

14Stack 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 2021 at a Montana source whose primary industry code is NAICS 3273. A facility filing more than one industry code is counted under the first one on its record.

Nonmetallic mineral product manufacturing (NAICS 3273) in Montana, other years

Other industries in Montana, 2021

Air-emissions stack tests recorded in Montana, 2021

Date	Facility	Where	Kind	Agency
2021-11-08	ASH GROVE CEMENT	CLANCY, Jefferson, MT	Pass	State
2021-11-08	ASH GROVE CEMENT	CLANCY, Jefferson, MT	Pass	State
2021-11-08	ASH GROVE CEMENT	CLANCY, Jefferson, MT	Pass	State
2021-11-08	ASH GROVE CEMENT	CLANCY, Jefferson, MT	Pass	State
2021-07-07	TRIDENT	THREE FORKS, Gallatin, MT	Pass	State
2021-07-07	TRIDENT	THREE FORKS, Gallatin, MT	Pass	State
2021-07-07	TRIDENT	THREE FORKS, Gallatin, MT	Pass	State
2021-07-07	TRIDENT	THREE FORKS, Gallatin, MT	Pass	State
2021-06-29	ASH GROVE CEMENT	CLANCY, Jefferson, MT	Pass	State
2021-06-29	ASH GROVE CEMENT	CLANCY, Jefferson, MT	Pass	State
2021-06-29	ASH GROVE CEMENT	CLANCY, Jefferson, MT	Pass	State
2021-06-29	ASH GROVE CEMENT	CLANCY, Jefferson, MT	Pass	State
2021-06-29	ASH GROVE CEMENT	CLANCY, Jefferson, MT	Pass	State
2021-02-05	TRIDENT	THREE FORKS, Gallatin, MT	Pass	State

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.