What condition necessitates the use of a power washer during nonmotorized standing water decontamination?

The use of a power washer during nonmotorized standing water decontamination is specifically warranted when there is a dirty, muddy, or crusty condition present. This is because contaminants like mud or crust can harbor aquatic invasive species and other pathogens that pose a risk to local ecosystems. A power washer provides the necessary pressure and force to effectively remove these contaminants from the surfaces of the watercraft and its equipment, ensuring thorough cleaning and reducing the risk of spreading invasive species.

In this context, utilizing a power washer enhances the effectiveness of the decontamination process, making it a critical tool when dealing with visible signs of dirt and potential biological threats. Conditions such as a pristine boat or sunny weather do not present the same level of contamination risk and therefore do not necessitate the use of more intensive cleaning methods. Similarly, simply responding to an owner's request does not justify the use of a power washer unless it is backed by an observable need related to the state of the equipment.