Which statement describes secondary containment?

Which statement describes secondary containment?

• A. It holds the material itself.
• B. It is used only for transport storage.
• C. It provides an extra barrier to catch leaks or spills from primary containment.
• D. It is used for decorative purposes.

Answer: (C)

Secondary containment is the extra barrier designed to catch leaks or spills from the container that actually holds the material. The material sits in primary containment—drums, tanks, or process vessels—and secondary containment provides a backup layer to prevent releases from reaching floors, drains, or the environment. It can take forms like a spill tray, a sump, a double-walled structure, or a bermed area around the primary container. Its role is to keep spilled material contained on-site, giving responders time to clean it up and reducing the risk of environmental contamination. This is why the statement describing it as an extra barrier to catch leaks or spills from primary containment is the best fit. It’s not about holding the material itself (that’s primary containment), nor about decorative use, and while it can be present in transport contexts, its main purpose is containment, not transportation or decoration.

Secondary containment is the extra barrier designed to catch leaks or spills from the container that actually holds the material. The material sits in primary containment—drums, tanks, or process vessels—and secondary containment provides a backup layer to prevent releases from reaching floors, drains, or the environment. It can take forms like a spill tray, a sump, a double-walled structure, or a bermed area around the primary container. Its role is to keep spilled material contained on-site, giving responders time to clean it up and reducing the risk of environmental contamination. This is why the statement describing it as an extra barrier to catch leaks or spills from primary containment is the best fit. It’s not about holding the material itself (that’s primary containment), nor about decorative use, and while it can be present in transport contexts, its main purpose is containment, not transportation or decoration.