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Used Oil Storage Tank/ M hh'.A Containment Integrity Report m m m m M for HMT Inspection Pape Machinery, Inc. May 5,2015 French Camp, CA Page 8 of 41 SIGNIFICANT FINDINGS (CONT'D.) USED OIL TRANSFER SHED: Used-oil collection pans and storage drums are brought to a Transfer Shed located adjacent to the Storage Tank where the used oil is pumped out of the collection pans and drums over to the Storage Tank via a pump with nozzle / industrial hose connections . The floor of the Transfer Shed is a concrete slab without curb walls so portable containment pallets are utilized for secondary containment. The drums and collection pans containing used oil are brought to the Transfer Shed on spill containment pallets via fork-lift and placed directly onto the concrete slab where the used oil is then pumped out via a nozzle / industrial hose and transferred to the Storage Tank. The spill containment pallets are in acceptable condition at this time. No items that would warrant corrective action were identified. Construction of these details inside the transfer shed is per industry standards for concrete. There is no "permanent' secondary containment in place on these details (i.e. coating or liner) which would prevent the permeation of oil over time into the concrete and through cold joints. Portable containment pallets are utilized to prevent spillage from contacting the concrete. Consideration should be given to applying coating or installing a liner on or under the concrete slab to prevent the permeation of oil into the concrete if minor spills were to occur. CARBON STEEL and INDUSTRIAL GRADE HOSE EVALUATION: Used oil is pumped from collection boxes and drums inside the Transfer Shed and transferred via 10 feet of 1.5-inch and 2-inch carbon steel piping and industrial grade hose into the fill nozzle on top of the tank. Visual (VT) inspection of the piping found no obvious defects that would warrant further evaluation or repair at this time. Secondary containment collection pallets have been placed under the pump and piping details to contain possible leaks from this pipe circuit inside the Transfer Shed, as mentioned above. ICH V MAY 15 2015 ENVIRONMENTA'- NDTRPTNE.DOT REV 2 232-63333 Pape Machinery CA DTSC Used Oil Tank report rev2 5/15/2015 4'26 PM