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AkHCON <br /> within the containments during inspections should be removed immediately. <br /> • The piping associated with the hazardous waste tank systems are compliant with the <br /> regulations identified in 22 CCR 66265. It is in good condition with no leaks or other <br /> damage and is compatible with the service for the Used Oil, Waste Antifreeze, and Waste <br /> Gasoline tank systems. The piping is adequately supported and protected against physical <br /> damage or stress. The Used Oil,Waste Antifreeze,and Reclaimed Gasoline tank systems <br /> piping should continue to be periodically inspected by site personnel for leaks and/or <br /> damage and repaired as necessary. <br /> • The ancillary equipment associated with the hazardous waste tank systems are compliant <br /> with the regulations identified in 22 CCR 66265. On the Used Oil and Waste Antifreeze <br /> tank systems,the gravity piping from open funnels to each waste tank acts as atmospheric <br /> vents preventing the development of vacuum or pressure. Alarmed tank level gauges are <br /> not present on the tanks to aid in preventing overfilling the tanks and the resultant overflow <br /> conditions. However, based on the translucency of the polyethylene tanks, documented <br /> daily visual inspections would be a sufficient alternative to an alarmed tank level gauge. In <br /> addition, the Reclaimed Gasoline tank system utilizes reading level gauges, audible high <br /> level alarms to prevent overfill,and the associated pressure/vacuum vents per manufacture <br /> specifications. <br /> • Care must be taken to assure hazardous materials encountered within the Drain Building <br /> are prevented from leaving the area surrounding the drain building and entering the drain <br /> inlets. Measures are in place to prevent hazardous materials from entering the storm drain <br /> system as result of spills or leaks and must be maintained. <br /> 1) Capping drain inlets permanently or maintaining emergency covers onsite in the event <br /> of a release from piping or ancillary equipment outside the secondary containment <br /> tanks. <br /> 2) Installing a trench or berm between the drain racks and the drainage swales to preclude <br /> spilled materials flowing into the swales. <br /> 3) Installing a sump that collects materials that flow into the drains and re-routing surface <br /> runoff away from the drains. r. <br /> 4) Installing an in-line separator that can remove oil and antifreeze from the fluids in the <br /> drain. <br /> Findings from the Hazardous Waste Tank System Assessment,evaluated againstthai-rgquirements <br /> Hazardous Stockton,CA <br /> Auto Parts Group TPl k Nak S Assessment Pul9 DEC 0 3 2016 Project No.04.20160 02 <br /> ENVIRONMENTAL HEALXH <br /> DEPk9,11u EENT <br />