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.

What this page shows

This page covers Clean Air Act facilities in the EPA air register with stack tests in AZ for 2023. It lists 102 stack tests recorded in 2023.