What is the primary purpose of secondary containment in fuel storage?

The primary purpose of secondary containment in fuel storage is to prevent spills from contaminating the surrounding environment. This is essential in ensuring environmental protection and compliance with regulatory standards. Secondary containment systems are designed to capture any leaks or spills that occur from primary storage tanks or containers, thereby preventing pollutants from reaching soil, groundwater, or surface water. Such measures not only safeguard the environment but also protect public health by minimizing the risk of hazardous substances entering local ecosystems.

While options that refer to additional storage capacity, aesthetic appearance, or temperature regulation may have some relevance in broader contexts, they do not align with the fundamental objective of secondary containment, which is to mitigate environmental risks associated with fuel storage.