What is the purpose of secondary containment when storing pesticides?

• A. To improve airflow around the storage area.
• B. To keep pests away from the storage area.
• C. To catch leaks or spills and prevent soil or water contamination.
• D. To comply with branding requirements.

Answer: (C)

Secondary containment provides a protective barrier around stored pesticides to catch leaks or spills and prevent soil or water contamination. If a container leaks, the liquid is contained within a designated area—like a concrete basin, berm, or spill tray—so it can be cleaned up without seeping into the ground or running into nearby waterways. This protects groundwater and surface water and also reduces worker exposure by keeping spills contained. It isn’t about improving airflow, keeping pests away, or meeting branding needs; those concerns aren’t addressed by containment of spills.