Which action is not appropriate for a large spill of liquid pesticide concentrate?

• A. Direct into storm drain
• B. Cover with absorbent material
• C. Contain the spill
• D. Use absorbent material

Answer: (A)

Containing and absorbing the spill is the correct approach because the goal is to keep the pesticide from spreading and entering the environment. A large amount of liquid pesticide concentrate can be highly toxic to aquatic life and can contaminate soil and groundwater, so it’s essential to prevent any runoff. Directing the liquid into a storm drain is not appropriate because storm drains lead to the stormwater system, which often discharges untreated water to rivers, lakes, or groundwater. Even a single spill can overwhelm the system and cause widespread contamination.

By contrast, containing the spill with barriers if possible and using absorbent materials to soak up the liquid helps keep it in one place and makes cleanup manageable. Absorbent material (pads, socks, or booms) directly removes the liquid from surfaces, reducing the risk of spread. After absorption, the contaminated materials should be collected and disposed of according to the pesticide label directions and local regulations. For large spills, follow the site spill plan and notify the appropriate supervisor or authority, ensuring you wear the required PPE during the response.