St. David, Cochise County. Manufacturer of industrial chemicals and explosives.
Contaminants: Chromium · Lead · Strontium · Zinc
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
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
Phoenix, Maricopa County. Semiconductor manufacturing plant.
Contaminants: Tetrachloroethene · 1,1,1-Trichloroethane · Trichloroethene · Vinyl Chloride
Location: Scottsdale, Maricopa County
Contaminants: Tetrachloroethene · Trichloroethene
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
Location: Mesa, Maricopa County
Contaminants: PCBs · Pesticides · VOCs
Location: Yuma, Yuma County
Contaminants: Asbestos · 1,1-Dichloroethene · Tetrachloroethene · Trichloroethene