EPA Air · stack tests by state and year

Air-emissions stack tests in Arizona, 2023

102Stack 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 2023; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in Arizona, 2023

Arizona, other years

Air-emissions stack tests recorded in Arizona, 2023

Date	Facility	Where	Kind	Agency
2023-12-12	FREEPORT MCMORAN - MIAMI SMELTER	MIAMI, Gila, AZ	Pass	State
2023-12-06	INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-11-30	REAL ALLOY ARIZONA	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-11-28	NUCOR STEEL KINGMAN	KINGMAN, Mohave, AZ	Pass	State
2023-11-21	CMC STEEL FABRICATORS	MARICOPA COUNTY, Maricopa, AZ	Fail	Local
2023-11-14	HP05	PRESCOTT, Yavapai, AZ	Pass	State
2023-11-10	ASARCO - HAYDEN SMELTER — high-priority violation on file	HAYDEN, Gila, AZ	Pass	State
2023-11-01	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2023-10-18	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2023-10-17	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Pass	State
2023-10-12	EHRENBERG COMPRESSOR STATION	EHRENBERG, La Paz, AZ	Pass	State
2023-09-27	EL PASO NATURAL GAS CO - SELIGMAN COMPRESSOR STATION	SELIGMAN, Yavapai, AZ	Pass	State
2023-09-26	EL PASO NATURAL GAS CO - WILLIAMS COMPRESSOR STATION	WILLIAMS, Coconino, AZ	Pass	State
2023-09-26	TOPOCK LNG PLANT 1 COOLING WATER BLOWDOWN POND	TOPOCK, Mohave, AZ	Pass	State
2023-09-22	MICROSOFT CORP - OLIVE AVE	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-09-21	NORTHWEST REGIONAL LANDFILL	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-09-20	PHOENIX CEMENT	CLARKDALE, Yavapai, AZ	Pass	State
2023-09-19	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2023-09-19	CMC STEEL FABRICATORS	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-09-14	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2023-09-12	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2023-09-12	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2023-09-11	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Fail	State
2023-09-07	NOVO BIOPOWER, LLC	SNOWFLAKE, Navajo, AZ	Pass	State
2023-09-07	CEDAR HILLS QUARRY	TOLLESON, Maricopa, AZ	Pass	State
2023-09-06	BAGDAD MINE	BAGDAD, Yavapai, AZ	Pass	State
2023-08-21	ARLINGTON VALLEY — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-08-10	APS REDHAWK GENERATING FACILITY	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-08-04	APS WEST PHX POWER PLANT	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-08-03	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Pass	State
2023-07-31	APS OCOTILLO POWER PLANT	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-07-28	TUCSON ELECTRIC POWER-IRVINGTON	TUCSON, Pima, AZ	Pass	Local
2023-07-26	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2023-07-26	PHOENIX CEMENT	CLARKDALE, Yavapai, AZ	Pass	State
2023-07-19	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Fail	State
2023-07-13	CALPORTLAND - RILLITO CEMENT PLANT	MARANA, Pima, AZ	Pass	State
2023-07-13	CEDAR HILLS QUARRY	TOLLESON, Maricopa, AZ	Fail	State
2023-07-13	APS WEST PHX POWER PLANT	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-07-10	FREEPORT-MCMORAN - SAFFORD OPERATIONS	SAFFORD, Graham, AZ	Pass	State
2023-07-06	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2023-06-29	GILA RIVER POWER STATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-06-28	INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-06-22	NEW HARQUAHALA GENERATING	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-06-21	TUCSON ELECTRIC POWER-IRVINGTON	TUCSON, Pima, AZ	Pass	Local
2023-06-20	EL PASO NATURAL GAS COMPANY- VAIL COMPRESSOR STATION	TUCSON, Pima, AZ	Pass	Local
2023-06-09	SOLANA GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-05-31	QUIKJET - MONROE I & II TERMINALS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-05-26	SALT RIVER PROJECT - SANTAN GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-05-23	UNS ELECTRIC INC - BLACK MOUNTAIN GENERATING STATION	GRIFFITH, Mohave, AZ	Pass	State
2023-05-22	VULCAN - PRESCOTT VALLEY HMA PLANT	PHOENIX, Maricopa, AZ	Pass	State
2023-05-17	MOSS MINE	BULLHEAD CITY, Mohave, AZ	Pass	State
2023-05-17	SALT RIVER PROJECT - KYRENE GENERATING STATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-05-16	APS - YUCCA POWER PLANT	YUMA, Yuma, AZ	Pass	State
2023-05-11	FREEPORT MCMORAN - MIAMI SMELTER	MIAMI, Gila, AZ	Pass	State
2023-05-11	SALT RIVER PROJECT - AGUA FRIA GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-05-10	GRAY MOUNTAIN HMA PLANT	PHOENIX, Maricopa, AZ	Pass	State
2023-05-09	FREEPORT MCMORAN - MIAMI SMELTER	MIAMI, Gila, AZ	Pass	State
2023-05-05	CKC CONSTRUCTION	SAFFORD, Graham, AZ	Pass	State
2023-05-04	LINDE GAS & EQUIPMENT, INC.	KINGMAN, Mohave, AZ	Pass	State
2023-05-03	TRANSWESTERN PIPELINE - KINGMAN COMPRESSOR STATION	FORT ROCK ROAD, Mohave, AZ	Pass	State
2023-04-28	FREEPORT-MCMORAN - MORENCI	MORENCI, Greenlee, AZ	Pass	State
2023-04-20	SFPP-PHOENIX TERMINAL	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-04-13	MESQUITE GENERATING STATION	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-04-12	TRANSWESTERN PIPELINE - FLAGSTAFF COMPRESSOR STATION	PARKS, Coconino, AZ	Pass	State
2023-04-06	BALL METAL BEVERAGE CONTAINER CORPORATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-03-31	INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-03-30	PHOENIX CEMENT	CLARKDALE, Yavapai, AZ	Pass	State
2023-03-29	PHOENIX CEMENT	CLARKDALE, Yavapai, AZ	Pass	State
2023-03-27	FREEPORT-MCMORAN - SAFFORD OPERATIONS	SAFFORD, Graham, AZ	Pass	State
2023-03-23	SUMCO SOUTHWEST CORPORATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-03-22	SUMCO SOUTHWEST CORPORATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-03-21	SUMCO SOUTHWEST CORPORATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2023-03-16	FREEPORT-MCMORAN - SAFFORD OPERATIONS	SAFFORD, Graham, AZ	Pass	State
2023-03-15	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pending	Local
2023-03-10	GILA RIVER POWER STATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-03-10	GILA RIVER POWER STATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-03-09	FREEPORT MCMORAN - MIAMI SMELTER	MIAMI, Gila, AZ	Pass	State
2023-03-07	UNIVERSITY OF ARIZONA	TUCSON, Pima, AZ	Pass	Local
2023-03-03	CALPORTLAND - RILLITO CEMENT PLANT	MARANA, Pima, AZ	Pass	State
2023-03-02	APACHE NITROGEN PRODUCTS INC — high-priority violation on file	SAINT DAVID, Cochise, AZ	Pass	State
2023-03-02	DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file	PAULDEN, Yavapai, AZ	Pass	State
2023-03-01	PINTO VALLEY MINE	MIAMI, Gila, AZ	Pass	State
2023-02-24	CMC STEEL FABRICATORS	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-02-23	NATURESWEET USA, LLC - WILLCOX FACILITY	WILLCOX, Graham, AZ	Pass	State
2023-02-23	VULCAN MATERIALS - YUMA ASPHALT	PHOENIX, Maricopa, AZ	Pass	State
2023-02-22	APACHE GENERATING STATION	COCHISE, Cochise, AZ	Pass	State
2023-02-14	FREEPORT-MCMORAN SIERRITA	GREEN VALLEY, Pima, AZ	Pass	Local
2023-02-09	EL PASO NATURAL GAS CO - SAN SIMON COMPRESSOR STATION	SAN SIMON, Cochise, AZ	Pass	State
2023-02-08	EL PASO NATURAL GAS - WILLCOX COMPRESSOR STATION	WILLCOX, Cochise, AZ	Pass	State
2023-02-08	INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-02-08	GILA RIVER POWER STATION — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-02-03	CIRCLE K TERMINAL	MARICOPA COUNTY, Maricopa, AZ	Pending	Local
2023-02-02	EL PASO NATURAL GAS CO - WENDEN COMPRESSOR STATION	CENTENNIAL, La Paz, AZ	Pass	State
2023-02-02	EL PASO NATURAL GAS CO - ALAMO LAKE COMPRESSOR STATION	ALAMO CROSSING (HISTORICAL), La Paz, AZ	Pass	State
2023-02-01	EL PASO NATURAL GAS CO - DUTCH FLAT COMPRESSOR STATION	FRANCONIA, Mohave, AZ	Pass	State
2023-01-31	EL PASO NATURAL GAS CO - MOJAVE TOPOCK COMPRESSOR STATION	TOPOCK, Mohave, AZ	Pass	State
2023-01-26	ASARCO - HAYDEN SMELTER — high-priority violation on file	HAYDEN, Gila, AZ	Pass	State
2023-01-26	EL PASO NATURAL GAS CO - SELIGMAN COMPRESSOR STATION	SELIGMAN, Yavapai, AZ	Pass	State
2023-01-25	EL PASO NATURAL GAS CO - WILLIAMS COMPRESSOR STATION	WILLIAMS, Coconino, AZ	Pass	State
2023-01-21	INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pending	Local

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