What does a "secondary containment" system do?

Answer: C — Prevents leaks or spills from escaping the primary container

A secondary containment system is designed specifically to prevent any leaks or spills from escaping the primary container. This is crucial in hazardous materials management, as it acts as an additional layer of protection that safeguards the environment and human health from potential contamination. When a primary container—such as a tank or drum—fails, the secondary containment will contain the leaked material, allowing for safe cleanup and preventing the hazardous substances from entering soil, water sources, or the atmosphere. The system can take various forms, such as a double-walled tank, a containment basin, or dikes, which are built to hold the potential volume of the liquid should a leak occur. The goal of such systems is to minimize the risk of environmental damage and ensure compliance with safety regulations. The other options, while relevant to hazardous materials management, do not accurately describe the primary function of a secondary containment system. Fire suppression methods, hazardous waste disposal practices, and barriers for radiological materials pertain to different aspects of safety and hazard management but do not align with the specific role of secondary containment in preventing environmental contamination from leaks or spills.