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Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Toxics Release Inventory, Arizona

Arizona Resources

Top Ten Chemical Releases


Chemical Total Releases (in pounds)
Zinc and Zinc Compounds 34,812,935
Copper and Copper Compounds 25,857,715
Lead and Lead Compounds 16,060,218
Barium and Barium Compounds 8,664,632
Manganese and Manganese Compounds 3,510,317
Chromium and Chromium Compounds (Except Chromite Ore mined in the Transvaal Region) 2,542,583
Nickel and Nickel Compounds 936,104
Arsenic and Arsenic Compounds 780,303
Antimony and Antimony Compounds 774,541
Sulfuric Acid ("Acid Aerosols" Only) 680,880

Top Ten Facilities

Name City County  Total Releases
Asarco LLC Ray Complex/Hayden Smelter & Concentrator Hayden Gila, AZ 44,293,087
Freeport-Mcmoran Miami Claypool Gila, AZ 22,256,932
Freeport-Mcmoran Morenci Morenci Greenlee, AZ 4,794,635
Springerville Generating Station Springerville Apache, AZ 4,231,272
Asarco LLC Ray Mine Operations Kearny Pinal, AZ 3,923,059
Coronado Generating Station Saint Johns Apache, AZ 3,064,467
Freeport-Mcmoran Sierrita Green Valley Pima, AZ 2,435,235
Salt River Project Navajo Generating Station Page Coconino, AZ 2,149,357
Asarco LLC Mission Complex Sahuarita Pima, AZ 1,921,558
Mineral Park Golden Valley Mojave, AZ 1,801,374

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