Which action is recommended during a pesticide fire?

During a pesticide fire, the primary concern is managing the situation safely and minimizing environmental impact. Constructing berms to contain contaminated runoff water is a recommended action because it helps prevent hazardous materials from spreading into nearby soil and water sources. This containment can protect both the environment and public health.

By containing runoff, you can limit the potential for further contamination, which is particularly crucial with chemicals involved in a pesticide fire. This action reflects an understanding of proper pollution control measures, especially since pesticides can have toxic effects.

The other options, while important in the context of managing a fire, do not directly address the critical need to manage the environmental impact of a pesticide fire. For instance, using water to extinguish flames might not be advisable as it could create a hazardous runoff situation. Evacuating personnel is certainly a necessary safety measure, but without managing the environmental consequences, such an action alone is insufficient. Calling emergency services only after attempting to control the fire can lead to delays that exacerbate the situation, especially in terms of containment and safety.