Laserfiche WebLink
IkAkTHCON49 <br /> are provided in Appendix C. <br /> 2.3 Piping <br /> Waste Antifreeze and Used Oil from salvaged vehicles are gravity drained into their associated <br /> tanks located in the aboveground secondary containments, as previously described. Because of the <br /> nature of the operation,the drain racks are configured with drain pans attached to articulated arms <br /> for positioning as needed to receive Used Oil and Waste Antifreeze as they are drained from the <br /> vehicles. This necessitates the use of flexible piping at the joints of the articulated arms. The <br /> remaining piping on the arms is steel. The drain rack piping directs the fluids to polyvinyl chloride <br /> (PVC) piping that extends from the drain racks to the storage tanks within the secondary <br /> containments. The concrete floor provides secondary containment for the piping; however,the floor <br /> does not appear to have been constructed to drain inward. Significant spills from piping near the <br /> perimeter of the concrete have the to potential to flow out of the drain building to the adjacent <br /> swales. The drains located in the swales are protected by oil absorbing booms and solid covers in <br /> high traffic areas. The Swale drains are connected to the Site's storm water pond by subsurface <br /> piping. <br /> Gasoline from salvaged vehicles is initially gravity drained from the vehicle to the Sump Tank to <br /> where it is evaluated and segregated into Waste Gasoline or Recyclable Gasoline based on color <br /> and odor. Waste Gasoline is gravity drained from the Sump Tank into appropriate steel containers <br /> and transferred to drums stored on containment pallets. Recyclable Gasoline is transferred to the <br /> Recyclable Gasoline tank'using a double diaphragm pump through a combination of flex and rigid <br /> steel piping. Similar to Used Oil and Waste Antifreeze, the gasoline drain is configured with a drain <br /> pan attached to an articulated arm using flex piping to collect and transfer gasoline as it is drained <br /> from the vehicles. A combination of steel and flex piping is used from the sump tank "bread box" <br /> through the double diaphragm pump to the sock filter. From the sock filter, steel and flex piping is <br /> used to the tank selector valve and subsequently steel piping where the Recyclable Gasoline is <br /> directed into the double-walled tanks. There is additional flex piping when fuel is again drained <br /> directly from a vehicle using the double diaphragm pump then pumped to the steel manifold. The <br /> concrete floor within the drain building provides secondary containment for piping indoors and the <br /> concrete floor and berm provide secondary containment for the piping outdoors. <br /> Recycled Diesel is salvaged from the vehicles under suction/pressure into a Diesel Water Separator <br /> 1 Refer to the Site's SPCC Plan for secondary containment and oil spill procedures related to the Recyclable Gasoline tanks. <br /> Hazardous Waste Tank Assessment Stockton,CA <br /> Auto Parts Group—Pick-N-Pull 4 Project No.04.20160002 <br />