Texas Pesticide Applicator Practice Exam

What is a main concern with runoff water from a pesticide storage area?

1. It could cause allergic reactions

2. It could evaporate quickly

3. It could contaminate groundwater with pesticide residue

4. It could be reused for irrigation

The correct answer is: It could contaminate groundwater with pesticide residue

The main concern with runoff water from a pesticide storage area is that it could contaminate groundwater with pesticide residue. When pesticides are stored, there is a risk that spills or leaks can occur, particularly in heavy rain or flooding situations. If this runoff water seeps into the ground, it can carry harmful chemicals into the groundwater supply, potentially affecting drinking water sources and harming aquatic ecosystems. Groundwater contamination is particularly concerning because it may not be easily detectable and can have long-term health and environmental impacts. While allergic reactions and quick evaporation may be related factors in other contexts, they do not directly address the immediate environmental threat posed by pesticide runoff. The possibility of reusing runoff water for irrigation is also not a favorable outcome, as it poses risks of applying contaminated water to crops, which can further spread pesticide residues into the food supply and contribute to pollution. Therefore, the significant risk associated with the runoff water is its potential to introduce harmful contaminants into the groundwater system.