Heavy metals including radioactive chemicals are a "waste" product of mining—containing uranium and its components in the Southwest

Phelps Dodge Sierrita
Remedial Site Assessment—2006

Park Corp. Twin Buttes—2006
Remedial Site Assessment

Also see: Technologically Enhanced Radioactive Materials (in Arizona)

Also see: EPA Assessments for CIRCLIS (Superfund) Status: 51 Mines in Arizona

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