California Designated Operator Practice Exam

Which type of secondary containment systems are exempt from testing requirements?

1. All systems that are older than 10 years

2. Systems without any monitoring equipment

3. Continuously monitored systems

4. Systems installed before 1987

The correct answer is: Continuously monitored systems

Continuously monitored systems are exempt from testing requirements because they are designed to provide real-time data on the integrity of the containment system. The ongoing monitoring of these systems ensures that any potential leaks or failures can be detected immediately, allowing for prompt action to mitigate any risks. This proactive approach reduces the need for periodic testing since the monitoring can continuously verify that the system is functioning as intended. In contrast, other types of secondary containment systems may not provide the same level of continuous oversight, which is why they might require more routine testing. Systems older than a certain age, those lacking monitoring equipment, or those installed before specific regulations may not have the same reliability as continuously monitored systems. Therefore, the exemption for continuously monitored systems stems from their ability to maintain safety and compliance without the need for frequent testing.