California ICC UST Service Technician Practice Exam

When was under dispenser containment required for all UST systems?

1. December 31, 2003

2. January 1, 2005

3. December 31, 2000

4. January 1, 2003

The correct answer is: December 31, 2003

Under dispenser containment became a requirement for all underground storage tank (UST) systems on December 31, 2003. This requirement was implemented as part of efforts to enhance the integrity and safety of UST systems, primarily to prevent leaks of fuel during dispensing operations. Under dispenser containment systems are designed to capture any spills or overfills that occur at the point of dispensing, thereby minimizing the risk of groundwater contamination and ensuring compliance with environmental regulations. This regulation originates from the need to strengthen secondary containment measures in the UST industry to better protect the environment. By mandating under dispenser containment, the regulations help ensure that any potential leaks are contained and addressed immediately, reducing the chances of hazardous substances entering the soil and groundwater. The other choices represent dates that are either prior to or inapplicable for the introduction of this specific requirement. Each of those dates lacks the regulatory backing for the under dispenser containment mandate, making them unsuitable. The adoption of secondary containment systems was a crucial step in improving safety standards in the management of UST systems, especially in high-risk areas.