EPA Air · stack tests by state, industry and year

Petroleum and coal products manufacturing (NAICS 3241): stack tests in Montana, 2020

64Stack 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 2020 at a Montana source whose primary industry code is NAICS 3241. A facility filing more than one industry code is counted under the first one on its record.

Petroleum and coal products manufacturing (NAICS 3241) in Montana, other years

Other industries in Montana, 2020

Air-emissions stack tests recorded in Montana, 2020

Date	Facility	Where	Kind	Agency
2020-12-18	PAR MONTANA BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-11-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-11-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-11-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-11-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-11-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-11-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-11-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-28	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-27	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-27	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-27	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-27	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-27	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-18	BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-14	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-08-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-08-04	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-07-15	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-07-15	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-07-07	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-07-07	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-06-26	PAR MONTANA BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-06-25	PAR MONTANA BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-06-25	PAR MONTANA BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-06-05	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-06-05	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-06-05	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-06-05	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-06-05	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-06-05	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-06-05	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-06-05	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-04-30	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-04-29	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-04-29	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-04-29	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-04-29	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-04-29	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-04-29	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-04-29	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-04-03	CHS INC REFINERY LAUREL	LAUREL, Yellowstone, MT	Pass	State
2020-02-19	CALUMET MONTANA REFINING — high-priority violation on file	GREAT FALLS, Cascade, MT	Pass	State
2020-01-29	PAR MONTANA BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-01-27	PAR MONTANA BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-01-12	BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-01-08	BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-01-08	BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-01-08	BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-01-08	BILLINGS REFINERY	BILLINGS, Yellowstone, MT	Pass	State
2020-01-08	BILLINGS REFINERY	BILLINGS, Yellowstone, 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.