Arizona Superfund Sites

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Apache Powder Company

St. David, Cochise County. Manufacturer of industrial chemicals and explosives.

Contaminants: Chromium · Lead · Strontium · Zinc


Hassayampa Landfill

Maricopa County. Municipal landfill operations began in 1961; operations included disposal of hazardous wastes into unlined pits during the period from April 20, 1979 to October 28, 1980.

Contaminants: 1,1-Dichloroethane · 1,1-Dichloroethene · 1,2-Dichloroethene · 1,2-Dichloropropane · Tetrachloroethene · Toluene · 1,1,1-Trichloroethane · Trichloroethene · Trichlorotrifluoroethane · Trichlorofluoromethane


Indian Bend Wash Area

Scottsdale and Tempe, Maricopa County. Multiple industrial sources released chlorinated solvents which have since made their way into groundwater.

Contaminants: Tetrachloroethene · Trichloroethene · VOCs


Iron King Mine and Humboldt Smelter

Dewey-Humboldt, Yavapai County. Lead, gold, silver, zinc, and copper mine, and associated smelter.

Contaminants: Arsenic · Lead · Sulfate


Motorola Inc.

Phoenix, Maricopa County. Semiconductor manufacturing plant.

Contaminants: Tetrachloroethene · 1,1,1-Trichloroethane · Trichloroethene · Vinyl Chloride


North Indian Bend Wash

Location: Scottsdale, Maricopa County

Contaminants: Tetrachloroethene · Trichloroethene


Phoenix-Goodyear Airport

Location: Goodyear, Maricopa County

Contaminants: Carbon Tetrachloride · Chloroform · Chromium · 1,1-Dichloroethene · Tetrachloroethene · Trichloroethene


Tucson International Airport Area

Location: Tucson, Pima County

Contaminants: Benzene · Chromium · 1,1-Dichloroethene · 1,4-Dioxane · Tetrachloroethene · Trichloroethene


Williams Air Force Base

Location: Mesa, Maricopa County

Contaminants: PCBs · Pesticides · VOCs


Yuma Marine Corps Air Station

Location: Yuma, Yuma County

Contaminants: Asbestos · 1,1-Dichloroethene · Tetrachloroethene · Trichloroethene


 Alternative Approach Sites

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ASARCO Hayden Plant

Hayden and Winkelman, Gila and Pinal Counties. Copper mine and smelter complex with operations stretching back over a hundred years.

Contaminants: Arsenic · Copper · Lead · Molybdenum · Selenium


Cyprus Tohono Mine

Location: Casa Grande, Pinal County

Contaminants: Perchlorate · Sulfate · Uranium


 Deleted Sites

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Luke Air Force Base

Location: Glendale, Maricopa County

Contaminants: VOCs · Waste oil

NPL Status: Deleted [2002]


Mountain View Mobile Home Estates

Location: Near Globe, Gila County

Contaminants: Asbestos

NPL Status: Deleted [1988]


Nineteenth Avenue Landfill

Location: Phoenix, Maricopa County

Contaminants: 1,1-Dichloroethene · Heavy Metals · PCBs

NPL Status: Deleted [2006]