EPA Air · stack tests by state and year

Air-emissions stack tests in Arizona, 2021

93Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Arizona during 2021; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in Arizona, 2021

Arizona, other years

Air-emissions stack tests recorded in Arizona, 2021

Date	Facility	Where	Kind	Agency
2021-12-16	INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-12-10	SOLANA GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-11-10	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2021-11-10	REAL ALLOY ARIZONA	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-10-27	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Fail	State
2021-10-14	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2021-10-12	FREEPORT MCMORAN - MIAMI SMELTER	MIAMI, Gila, AZ	Pass	State
2021-10-06	EHRENBERG COMPRESSOR STATION	EHRENBERG, La Paz, AZ	Pass	State
2021-10-04	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pass	Local
2021-09-29	VALENCIA POWER PLANT	NOGALES, Santa Cruz, AZ	Pass	State
2021-09-29	VULCAN MATERIALS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-09-02	BAGDAD MINE	BAGDAD, Yavapai, AZ	Pass	State
2021-08-31	CMC STEEL FABRICATORS	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-08-30	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pass	Local
2021-08-26	NOVO BIOPOWER, LLC	SNOWFLAKE, Navajo, AZ	Pass	State
2021-08-26	BAGDAD MINE	BAGDAD, Yavapai, AZ	Pass	State
2021-08-25	EL PASO NATURAL GAS CO - SELIGMAN COMPRESSOR STATION	SELIGMAN, Yavapai, AZ	Pass	State
2021-08-24	EL PASO NATURAL GAS CO - WILLIAMS COMPRESSOR STATION	WILLIAMS, Coconino, AZ	Pass	State
2021-08-20	CALPORTLAND - RILLITO CEMENT PLANT	MARANA, Pima, AZ	Pass	State
2021-08-19	CALPORTLAND - RILLITO CEMENT PLANT	MARANA, Pima, AZ	Pass	State
2021-08-19	CALPORTLAND - RILLITO CEMENT PLANT	MARANA, Pima, AZ	Pass	State
2021-08-19	APS REDHAWK GENERATING FACILITY	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2021-08-18	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2021-08-18	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2021-08-18	ARLINGTON VALLEY — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-08-12	FREEPORT-MCMORAN - SAFFORD OPERATIONS	SAFFORD, Graham, AZ	Pass	State
2021-08-12	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2021-08-12	INSULFOAM — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Fail	Local
2021-08-12	APS WEST PHX POWER PLANT	MARICOPA COUNTY, Maricopa, AZ	Pass	State
2021-07-28	LHOIST NORTH AMERCA OF ARIZONA - NELSON	ARIZONA, Undetermined, AZ	Pass	State
2021-07-09	SALT RIVER PROJECT - AGUA FRIA GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pass	State
2021-07-06	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pass	Local
2021-06-30	SFPP,LP - TUCSON TERMINAL	TUCSON, Pima, AZ	Pass	Local
2021-06-29	UNITED DAIRYMEN OF ARIZONA	MARICOPA COUNTY, Maricopa, AZ	Pass	State
2021-06-29	SALT RIVER PROJECT - SANTAN GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pass	State
2021-06-29	NEW HARQUAHALA GENERATING	MARICOPA COUNTY, Maricopa, AZ	Pass	State
2021-06-29	GILA RIVER POWER STATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	State
2021-06-28	PHOENIX CEMENT	CLARKDALE, Yavapai, AZ	Pass	State
2021-06-23	CORONADO GENERATING PLANT	SAINT JOHNS, Apache, AZ	Pass	State
2021-06-21	QUIKJET - MONROE I & II TERMINALS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	State
2021-06-21	INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2021-06-16	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2021-06-13	CHOLLA GENERATING STATION	JOSEPH CITY, Navajo, AZ	Pass	State
2021-06-11	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Pass	State
2021-06-09	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2021-06-09	TUCSON ELECTRIC POWER-IRVINGTON	TUCSON, Pima, AZ	Pass	Local
2021-06-08	TUCSON ELECTRIC POWER - SPRINGERVILLE GENERATING STATION	SPRINGERVILLE, Apache, AZ	Pass	State
2021-06-08	NORTHWEST REGIONAL LANDFILL	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-06-08	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pass	Local
2021-06-03	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Pass	State
2021-05-27	TUCSON ELECTRIC POWER-IRVINGTON	TUCSON, Pima, AZ	Pass	Local
2021-05-26	SALT RIVER PROJECT - KYRENE GENERATING STATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-05-26	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pass	Local
2021-05-21	LINDE GAS & EQUIPMENT, INC.	KINGMAN, Mohave, AZ	Pass	State
2021-05-21	MESQUITE GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-05-20	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2021-05-20	BAGDAD MINE	BAGDAD, Yavapai, AZ	Pass	State
2021-05-20	APS OCOTILLO POWER PLANT	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-05-17	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pass	Local
2021-05-13	SFPP-PHOENIX TERMINAL	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-05-07	FREEPORT MCMORAN - MIAMI SMELTER	MIAMI, Gila, AZ	Pass	State
2021-05-07	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2021-05-04	MOSS MINE	BULLHEAD CITY, Mohave, AZ	Pass	State
2021-04-22	APACHE NITROGEN PRODUCTS INC — high-priority violation on file	SAINT DAVID, Cochise, AZ	Pass	State
2021-04-16	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Pass	State
2021-04-09	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Pass	State
2021-04-07	SOLANA GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-04-06	TRANSWESTERN PIPELINE - FLAGSTAFF COMPRESSOR STATION	PARKS, Coconino, AZ	Pass	State
2021-04-02	COPPER MOUNTAIN LANDFILL	WELLTON, Yuma, AZ	Pass	State
2021-03-24	TRANSWESTERN PIPELINE - KINGMAN COMPRESSOR STATION	FORT ROCK ROAD, Mohave, AZ	Pass	State
2021-03-19	PHOENIX CEMENT	CLARKDALE, Yavapai, AZ	Pass	State
2021-03-18	EL PASO NATURAL GAS CO - WILLIAMS COMPRESSOR STATION	WILLIAMS, Coconino, AZ	Pass	State
2021-03-17	EL PASO NATURAL GAS CO - SELIGMAN COMPRESSOR STATION	SELIGMAN, Yavapai, AZ	Pass	State
2021-03-12	EL PASO NATURAL GAS CO - HACKBERRY COMPRESSOR STATION	KINGMAN, Mohave, AZ	Pass	State
2021-03-11	FREEPORT-MCMORAN - SAFFORD OPERATIONS	SAFFORD, Graham, AZ	Pass	State
2021-03-11	EL PASO NATURAL GAS CO - WENDEN COMPRESSOR STATION	CENTENNIAL, La Paz, AZ	Pass	State
2021-03-11	EL PASO NATURAL GAS CO - DUTCH FLAT COMPRESSOR STATION	FRANCONIA, Mohave, AZ	Pass	State
2021-03-08	EL PASO NATURAL GAS CO - MOJAVE TOPOCK COMPRESSOR STATION	TOPOCK, Mohave, AZ	Pass	State
2021-03-04	EL PASO NATURAL GAS - WILLCOX COMPRESSOR STATION	WILLCOX, Cochise, AZ	Pass	State
2021-03-02	EL PASO NATURAL GAS CO - ALAMO LAKE COMPRESSOR STATION	ALAMO CROSSING (HISTORICAL), La Paz, AZ	Pass	State
2021-02-26	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2021-02-25	CMC STEEL FABRICATORS	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-02-17	VULCAN ASPHALT	MARICOPA COUNTY, Maricopa, AZ	Pass	State
2021-02-11	MESQUITE GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pass	State
2021-02-10	SFPP-PHOENIX TERMINAL	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2021-02-01	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pass	Local
2021-01-26	PHOENIX CEMENT	CLARKDALE, Yavapai, AZ	Pass	State
2021-01-19	UNIVERSITY OF ARIZONA	TUCSON, Pima, AZ	Pass	Local
2021-01-18	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pass	Local
2021-01-14	GOLD ROAD MINE	OATMAN, Mohave, AZ	Pass	State
2021-01-12	PAINTED DESERT LANDFILL	JOSEPH CITY, Navajo, AZ	Pass	State
2021-01-07	NATURESWEET USA, LLC - WILLCOX FACILITY	WILLCOX, Graham, AZ	Pass	State
2021-01-07	GRAY WOLF REGIONAL LANDFILL	DEWEY, Yavapai, AZ	Fail	State

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.