Which one of the following is NOT a source of technical information about decontamination procedures?

The option indicating the Environmental Protection Agency (EPA) as not a source of technical information about decontamination procedures is misguided. In fact, the EPA is heavily involved in environmental protection and provides vital information regarding hazardous materials, including decontamination processes, especially in relation to contamination cleanup and environmental health standards.

On the other hand, CHEMTREC, the National Response Center, and the CDC-ATSDR are all recognized sources for specific, actionable information related to hazardous materials and decontamination. CHEMTREC provides immediate assistance and technical information in emergencies involving hazardous materials. The National Response Center facilitates communication and coordination for federal, state, and local agencies on contamination incidents, and has resources for decontamination protocols. Meanwhile, the CDC-ATSDR focuses on public health regarding hazardous substances, offering guidelines and practices for decontamination in various scenarios.

Therefore, the correct understanding of the role of these organizations reveals that the EPA is indeed a legitimate source of technical information regarding decontamination procedures.