California UST System Operator Practice Test

An inconclusive result for Statistical Inventory Reconciliation (SIR) signifies that release detection has not been adequately performed by the owner and operator during that specific month. SIR is a method used to assess the likelihood of a leak from a storage tank system by comparing the recorded inventory to various factors, including deliveries, sales, and expected inventory fluctuations. When results are inconclusive, it typically points to insufficient data or discrepancies that prevent a definitive conclusion about whether a release may have occurred.

In the context of environmental regulations and UST (Underground Storage Tank) management, conducting proper release detection is crucial for maintaining compliance and ensuring the safety of the environment. Owners and operators must ensure that the methods and procedures for release detection are properly carried out to arrive at conclusive results. If release detection is not performed or inadequately addressed, inconclusive results can occur, highlighting potential issues in monitoring the system.