California ICC UST Inspector Practice Exam

What is the minimum inspection frequency for impressed current cathodic protection systems?

1. 60 days

2. 90 days

3. 30 days

4. 120 days

The correct answer is: 60 days

The minimum inspection frequency for impressed current cathodic protection systems is every 60 days. This interval is critical to ensure the system is functioning effectively in preventing corrosion on underground storage tanks and associated piping. Regular inspections allow for timely identification of issues such as power failure, equipment malfunction, or changes in soil conditions that could impair the system's effectiveness. Regular checks help ensure the protection levels required by regulations are maintained, thereby safeguarding both the integrity of the storage system and the environment from potential leaks or failures. Additionally, consistent monitoring helps in documentation and compliance with local regulations and standards, which often dictate the operational reliability of cathodic protection systems. By adhering to a 60-day inspection schedule, maintenance teams can keep track of the equipment's performance and make necessary adjustments to the system as conditions warrant, thereby maintaining safe and compliant operations.