How should you treat collected runoff?

Treating collected runoff as surplus pesticide is the correct approach because runoff may contain residuals of the pesticide that was applied. This treatment method recognizes that the collected material still possesses the properties and potential hazards associated with the pesticide, and it must be managed accordingly to prevent environmental contamination.

This choice reflects proper protocols for handling materials that can still pose a risk to health and the environment due to their chemical composition. Such runoff should be contained and disposed of in compliance with local regulations governing pesticide waste, ensuring that it does not enter stormwater systems or non-target areas.

In contrast, treating runoff as hazardous waste would generally require more stringent disposal methods and regulatory compliance, often unnecessary unless the pesticide involved is classified as particularly dangerous. Labeling it as rinsewater might imply it is a less hazardous material that can be discarded with regular waste, which could lead to improper disposal practices. Finally, considering it as regular wastewater disregards the specific risks and regulations associated with pesticide runoff, opening the potential for environmental harm.