California ICC UST Service Technician Practice Exam

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A written statement indicating SIR results must be submitted to the _________ agency every_________months.

  1. state, 6

  2. local, 12

  3. federal, 24

  4. environmental, 3

The correct answer is: local, 12

The correct answer indicates that a written statement detailing the Statistically Improbable Results (SIR) must be submitted to the local agency every 12 months. This reflects the regulatory requirements under California law for underground storage tanks (USTs), which dictate that SIR results are essential for monitoring compliance with leak detection standards. SIR systems use statistical methods to assess the likelihood of a leak based on product inventory data, and local agencies rely on these reports to ensure that UST operators are maintaining the integrity of their tanks and protecting the environment. Regular submission of this information helps in detecting potential issues early and in taking necessary corrective actions to prevent environmental contamination. The choice of every 12 months is significant because it establishes a clear timeline for oversight and accountability. Consistent reporting intervals enable regulatory agencies to monitor the performance of tank systems and provide assurance that they are not posing a risk to groundwater and public health.

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