EnvironmentalIntermediateArizona Exam

Polychlorinated biphenyls (PCBs) in Arizona real estate are most commonly found in:

ADrinking water distribution systems, particularly older galvanized and lead solder connections
BOld electrical transformers and capacitors in commercial and industrial buildingsCorrect
CResidential interior latex paint applied before 1978
DModern EPA-certified construction materials, from legacy contamination in recycled content

Why Old electrical transformers and capacitors in commercial and industrial buildings Is Correct

Answer B: Old electrical transformers and capacitors in commercial and industrial buildings

PCBs were used as insulating fluids in electrical transformers and capacitors until banned in 1979. They are a concern in older commercial/industrial buildings and electrical equipment and are highly persistent environmental contaminants.

Exam Tip: Environmental

Environmental questions test knowledge of hazards like asbestos, lead-based paint, radon, and mold. Know the disclosure requirements and when a professional inspection is required. CERCLA liability is strict, joint, and several.

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