Which type of water should be explicitly avoided in the Gross Decon process?

Stagnant water should be explicitly avoided in the Gross Decon process due to the potential hazards it poses. This type of water can harbor various pathogens and contaminants that may have collected over time, making it unsafe for decontamination purposes. Using stagnant water could inadvertently spread harmful bacteria or other infectious agents, compromising the effectiveness of the decontamination effort and potentially endangering both the victims being decontaminated and the personnel performing the decontamination.

Municipal water, on the other hand, is typically treated and monitored for safety, making it a preferable option in many situations. Filtered rainwater, while requiring proper filtration, can be a safe alternative if managed correctly, and purified water is specifically designed to be free from contaminants and suitable for use in various processes, including decontamination. Hence, stagnant water is the only type that presents a significant risk and should be avoided altogether in such critical scenarios.