California ICC UST Inspector Practice Exam

Which monitoring requirement will NOT be applicable for non-emergency generator, double wall, pressurized product piping after November 9, 2004?

1. Continuous monitoring system for secondary containment

2. A 3.0-gph automatic line leak detector must be installed

3. Annual 0.1 piping test or positive shut-down is necessary

4. An annual 0.1 piping test or a monthly 0.2 gph pipe must be conducted

The correct answer is: An annual 0.1 piping test or a monthly 0.2 gph pipe must be conducted

The requirement for annual testing of a 0.1-gallon-per-hour (gph) leak test or conducting a monthly 0.2 gph leak test is not applicable for double-wall, pressurized product piping for non-emergency generators after the specified date. This is because double-wall piping systems are considered to provide a superior level of containment compared to single-wall systems, reducing the need for frequent leak testing. In double-wall systems, the outer wall serves as secondary containment, which allows for continuous monitoring through the interstitial space. As a result, the regulatory emphasis shifts towards more effective monitoring systems, such as a continuous monitoring system for secondary containment. Therefore, while an annual leak test may still be relevant for certain configurations, the focus on more robust containment methods in double-wall systems diminishes the necessity for frequent testing such as the monthly 0.2 gph leak test. The focus of regulatory requirements post-November 9, 2004, emphasizes proactive monitoring and management practices rather than frequent, repetitive testing for systems already deemed more secure. This aligns with the understanding that advancements in equipment technology and standards necessitate a shift towards more reliable monitoring solutions.