Chemical

Total Releases (in pounds)

Copper Compounds

30,307,852

Lead Compounds

18,963,984

Zinc Compounds

17,465,267

Barium Compounds

4,382,896

Barium

2,363,922

Chromium Compounds (Except Chromite Ore mined in the Transvaal Region)

2,163,255

Manganese

1,532,491

Manganese Compounds

1,440,308

Sulfuric Acid (1994 And After "Acid Aerosols" Only)

877,821

Hydrogen Fluoride

829,340

Name

City

County

 Total Releases

Asarco llc Ray Complex/Hayden Smelter & Concentrator

Hayden

Gila , AZ

25,316,913

Freeport-Mcmoran Miami Inc

Claypool

Gila , AZ

25,304,600

Cyprus Tohono Corp

Casa Grande

Pinal, AZ

13,394,257

Freeport-Mcmoran Morenci Inc

Morenci

Greenlee , AZ

8,630,764

Springerville Generating Station

Springerville

Apache, AZ

3,194,773

Freeport-Mcmoran Sierrita Inc

Green Valley

Pima, AZ

2,394,534

Cholla Power Plant

Joseph City

Navajo, AZ

2,353,324

Coronado Generating Station

Saint Johns

Apache, AZ

2,214,812

Freeport-Mcmoran Bagdad Inc

Bagdad

Yavapai, AZ

2, 065, 794

BHP Copper Inc Pinto Valley Operation

Miami

Gila , AZ

2,019,233

Chemical

Total Releases (in pounds)

Copper Compounds

24,116,817

Zinc Compounds

10,953,638

Lead Compounds

8,922,820

Barium Compounds

7,418,649

Manganese Compounds

2,239,349

Chromium Compounds (Except Chromite Ore mined in the Transvaal Region)

1,841,768

Antimony And Antimony Compounds

615,3771

Nickel And Nickel Compounds

452,068

Arsenic And Arsenic Compounds

436,910

Name

City

County

 Total Releases

Asarco LLC Ray Complex/Hayden Smelter & Concentrator

Hayden

Gila , AZ

20,996,567

Freeport-Mcmoran Miami Inc

Claypool

Gila , AZ

20,423,690

Springerville Generating Station

Springerville

Apache, AZ

2,635,628

Freeport-Mcmoran Miami Inc

Green Valley

Pima, AZ

2,421,465

Cholla Power Plant

Joseph City

Navajo, AZ

2,227,390

Coronado Generating Station

Saint Johns

Apache, AZ

2,115,187

Salt River Project Navajo Generating Station

Page

Coconino, AZ

2,060,692

Asarco LLC Mission Complex

Sahuarita

Pima, AZ

1,756,420

Freeport-Mcmoran Morenci Inc

Morenci

Greenlee , AZ

1,272,976

Freeport-Mcmoran Bagdad Inc

Bagdad

Yavapai, AZ

1,180,367

Chemical

Total Releases (in pounds)

Copper and Copper Compounds

25,519,639

Zinc Compounds

22,872,122

Lead and Lead Compounds

12,876,891

Barium and Barium Compounds

8,165,056

Manganese and Manganese Compounds

2,714,051

Chromium and Chromium Compounds (Except Chromite Ore mined in the Transvaal Region)

2,080,064

Sulfuric Acid (1994 and after acid aerosols only)

844,470

Antimony Compounds

775,162

Arsenic and Arsenic Compounds

565,712

Methanol

405,990

Name

City

County

 Total Releases

Asarco LLC Ray Complex/Hayden Smelter & Concentrator

Hayden

Gila , AZ

31,038,891

Freeport-Mcmoran Miami

Claypool

Gila , AZ

25,395,313

Springerville Generating Station

Springerville

Apache, AZ

4,150,144

Freeport-Mcmoran Morenci

Morenci

Greenlee , AZ

2,968,986

Freeport-Mcmoran Sierrita

Green Valley

Pima, AZ

2,502,369

Coronado Generating Station

Saint Johns

Apache, AZ

2,496,507

Salt River Project Navajo Generating Station

Page

Coconino , AZ

2,165,120

Asarco LLC Mission Complex

Sahuarita

Pima, AZ

1,593,887

Freeport-Mcmoran Bagdad

Bagdad

Yavapai, AZ

1,258,367

Mineral Park

Golden Valley

Mojave, AZ

1,230,286