California Designated Operator Practice Exam

What is the minimum leak release detection capability for a volumetric tank test?

1. 0.05 gph

2. 0.1 gph

3. 0.2 gph

4. 0.3 gph

The correct answer is: 0.1 gph

The minimum leak release detection capability for a volumetric tank test is established to ensure the integrity and safety of underground storage tanks. A detection capability of 0.1 gallons per hour (gph) is significant because it effectively balances the need for early detection of leaks while recognizing practical limitations in measurement technology. This threshold allows operators to identify leaks at a level that minimizes environmental risk and ensures compliance with regulatory standards. By detecting leaks at this level, tank operators can take timely action to prevent more significant contamination and financial loss. Moreover, this threshold aligns with many regulatory frameworks which emphasize the importance of early intervention and leak prevention. Using a detection sensitivity of 0.1 gph helps maintain a standard that is both stringent enough to protect the environment while also being practical for regular operations and monitoring. This is why this particular answer stands out as correct within the context of leak detection requirements for volumetric tank testing.