EPA Air · stack tests by state, industry and year

Utilities (NAICS 2211): stack tests in Montana, 2019

88Stack 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 2019 at a Montana source whose primary industry code is NAICS 2211. A facility filing more than one industry code is counted under the first one on its record.

Utilities (NAICS 2211) in Montana, other years

Other industries in Montana, 2019

Air-emissions stack tests recorded in Montana, 2019

Date	Facility	Where	Kind	Agency
2019-12-19	COLSTRIP ENERGY LTD PARTNERSHIP	COLSTRIP, Rosebud, MT	Pass	State
2019-12-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-12-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-12-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-12-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-12-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-12-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-12-02	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-12-02	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-12-02	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-12-02	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-11-08	ROCKY MOUNTAIN POWER	HARDIN, Big Horn, MT	Pass	State
2019-11-08	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-11-08	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-11-08	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-11-08	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-11-05	MDU - GLENDIVE	GLENDIVE, Dawson, MT	Pass	State
2019-11-01	MDU - LEWIS & CLARK STATION	SIDNEY, Richland, MT	Pass	State
2019-10-09	YELLOWSTONE POWER PLANT — high-priority violation on file	BILLINGS, Yellowstone, MT	Pass	State
2019-09-08	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-09-06	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-09-06	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-09-06	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-09-06	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-09-06	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-09-06	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-09-06	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-09-06	YELLOWSTONE POWER PLANT — high-priority violation on file	BILLINGS, Yellowstone, MT	Pass	State
2019-09-06	YELLOWSTONE POWER PLANT — high-priority violation on file	BILLINGS, Yellowstone, MT	Pass	State
2019-08-19	MDU - LEWIS & CLARK STATION	SIDNEY, Richland, MT	Pass	State
2019-08-19	MDU - LEWIS & CLARK STATION	SIDNEY, Richland, MT	Pass	State
2019-08-01	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-08-01	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-07-27	MDU - LEWIS & CLARK STATION	SIDNEY, Richland, MT	Pass	State
2019-07-27	MDU - LEWIS & CLARK STATION	SIDNEY, Richland, MT	Pass	State
2019-07-10	YELLOWSTONE POWER PLANT — high-priority violation on file	BILLINGS, Yellowstone, MT	Pass	State
2019-06-24	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-06-24	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-05-31	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-05-31	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-05-13	YELLOWSTONE POWER PLANT — high-priority violation on file	BILLINGS, Yellowstone, MT	Pass	State
2019-05-10	YELLOWSTONE POWER PLANT — high-priority violation on file	BILLINGS, Yellowstone, MT	Pass	State
2019-04-08	MDU - LEWIS & CLARK STATION	SIDNEY, Richland, MT	Pass	State
2019-04-05	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-04-05	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-04-05	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-04-05	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-04-05	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-04-05	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-04-05	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-04-05	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-21	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-21	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-21	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-21	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-21	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-21	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-21	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-21	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-11	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-11	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-11	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-11	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-03-08	BASIN CREEK POWER SERVICES	BUTTE, Silver Bow, MT	Pass	State
2019-03-08	BASIN CREEK POWER SERVICES	BUTTE, Silver Bow, MT	Pass	State
2019-03-08	BASIN CREEK POWER SERVICES	BUTTE, Silver Bow, MT	Pass	State
2019-03-08	BASIN CREEK POWER SERVICES	BUTTE, Silver Bow, MT	Pass	State
2019-03-08	BASIN CREEK POWER SERVICES	BUTTE, Silver Bow, MT	Pass	State
2019-03-08	BASIN CREEK POWER SERVICES	BUTTE, Silver Bow, MT	Pass	State
2019-03-08	BASIN CREEK POWER SERVICES	BUTTE, Silver Bow, MT	Pass	State
2019-03-08	BASIN CREEK POWER SERVICES	BUTTE, Silver Bow, MT	Pass	State
2019-03-08	BASIN CREEK POWER SERVICES	BUTTE, Silver Bow, MT	Pass	State
2019-02-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-02-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-02-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-02-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-02-06	DAVE GATES GENERATING STATION AT MILL CREEK	ANACONDA, Deer Lodge, MT	Pass	State
2019-01-31	YELLOWSTONE POWER PLANT — high-priority violation on file	BILLINGS, Yellowstone, MT	Pass	State
2019-01-29	COLSTRIP ENERGY LTD PARTNERSHIP	COLSTRIP, Rosebud, MT	Pass	State
2019-01-24	ROCKY MOUNTAIN POWER	HARDIN, Big Horn, MT	Pass	State
2019-01-24	ROCKY MOUNTAIN POWER	HARDIN, Big Horn, MT	Fail	State
2019-01-19	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-01-18	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-01-18	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-01-18	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2019-01-14	MDU - LEWIS & CLARK STATION	SIDNEY, Richland, MT	Pass	State
2019-01-14	MDU - LEWIS & CLARK STATION	SIDNEY, Richland, MT	Pass	State
2019-01-14	MDU - LEWIS & CLARK STATION	SIDNEY, Richland, 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.