California UST System Operator Practice Test

The main purpose of implementing cathodic protection in UST (Underground Storage Tank) operation is to prevent corrosion of metallic components and extend the life of the system. This is achieved through methods that help mitigate the electrochemical processes that lead to rust and deterioration of metal surfaces exposed to the soil and groundwater environment. Cathodic protection works by applying a direct electrical current to the metal structures or by using sacrificial anodes, which corrode instead of the protected metal.

Corrosion can significantly compromise the integrity of storage tanks and their associated structures, leading to leaks and environmental contamination. By employing cathodic protection, operators can enhance the durability and functionality of UST systems, thereby ensuring safety and compliance with regulations. This aspect is crucial, as protecting the environment and maintaining the structural integrity of UST systems are top priorities for operators and regulators alike.