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The Division may require submittal of SPCC plan details sufficient to calculate a reclamation bond and review of the associated reclamation plan. Mine Stte laapectlona: As an inspection item, where ground water impacts from a loss of containment may be expected, the mine site operator may need to demonstrate that any wntained waters in the spill containment structure do not compromise the ability to store the design storm event. (A Professional Engineer certification of an SPCC plan demonstrates containment capacity requirements.) Removal of accumulated fluids from containment structures must be done in accordance with applicable laws and regulations. The presence or absence of a containment structure or, if applicable, an SPCC plan at a mine site should be an inspection item and so noted in the inspection report. Double walled tanks/convault tanks do not need secondary containment, as it is inherent in the design of the structure. Temporary or portable tanks must abide by appropriate containment requirements and have adequate containment. It is recommended that spill plan site maps be updated as part of the annual report to show the current location of the tank(s). The presence of a slurry wall or other canstructed barrier intended to result itt a lined reservoir at a construction materials operation is an acceptable alternative to an approval SPCC plan or facility. The Operator must provide the Office documentation that the Office of the State Engineer has approved the constructed barrier in order for the Division to accept the barrier as an alternative. The WQCD should be copied on the inspection report if an SPCC plan or Materials Containment Plan is not available for inspection and it is determined that such plan(s) may be required. (Please see regulated quantities, above.) It is recommended that site placement of the containment structure(s) prevent and/or protect against the loss of the containment structure(s) due to debris or lamdslides, avalanches, or other - - - -- reasonably anticipated events that could compromise the ability of the facility to contain a -- -- controlled product spill. Guidance contained herein pertaining to site placement shall only apply to structures constructed after the date this policy is adopted. For existing facilities where site placement has the potential to compromise contaimnent, the operator may propose structural improvements or operational procedures. The Division will determine on acase-by-case basis if a permit revision is required for the proposed structural improvement(s) in order to prevent and/or protect against the loss of the containment structure(s) due to debris or landslides, avalanches, or other reasonably anticipated events that could compromise the ability of the facility to contain a controlled product spill.