What does the term "secondary containment" refer to?

• A. A backup system to control leaks
• B. A method of transporting hazardous materials
• C. A type of personal protective equipment
• D. An evacuation procedures document

Answer: (A)

The term "secondary containment" refers to a backup system designed to control leaks and spills of hazardous materials. This concept is crucial in ensuring that if the primary containment (such as a storage tank or a drum) fails, the secondary system can capture and contain any released material, thereby preventing it from contaminating the environment or posing risks to public safety. This may involve features such as berms, double-walled tanks, or containment trays that are specifically engineered to hold materials that may leak. By implementing secondary containment measures, organizations enhance their ability to manage hazardous materials responsibly and in compliance with safety regulations.