California Designated Operator Practice Exam

Which test must all existing systems complete by January 1, 2003?

1. Annual performance review

2. Secondary containment testing

3. Visual inspection every 6 months

4. Certification of all equipment

The correct answer is: Secondary containment testing

Secondary containment testing is a requirement that ensures the integrity of systems designed to prevent spills or leaks of hazardous substances. This type of testing is critical for facilities that handle potentially harmful materials, as it assesses whether the containment structures are functioning properly and can effectively mitigate environmental risks. By January 1, 2003, regulations mandated that existing systems must have completed this testing to demonstrate compliance with safety standards. This requirement reflects the importance of maintaining robust safety measures to protect both public health and the environment from contamination through accidental releases. The other options address various aspects of system maintenance and safety but do not reflect the specific regulatory mandate set for that date. Annual performance reviews, visual inspections every six months, and certification of all equipment are important practices but were not necessarily required for all existing systems by the specified deadline.