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IkAkTHCONV inspected by site personnel for evidence of leaks and/or damage. Any debris, parts, or equipment observed within the containments durinq inspections should be removed immediately. • The piping associated with the hazardous waste tank systems are compliant with the regulations identified in 22 CCR 66265. It is in good condition with no leaks or other damage and is compatible with the service for the Used Oil, Waste Antifreeze, and Waste Gasoline/Diesel drain systems. The piping is adequately supported and protected against physical damage or stress. Therefore, the piping associated with the hazardous waste tank system should continue to be periodically inspected by Site personnel for leaks and/or damage and repaired as necessary. • The ancillary equipment associated with the hazardous waste tank systems are compliant with the regulations identified in 22 CCR 66265. On the Used Oil and Waste Antifreeze tank systems, the gravity piping from open funnels to each waste tank acts as atmospheric vents preventing the development of vacuum or pressure. Alarmed tank level gauges are not present on the tanks to aid in preventing overfilling the tanks and the resultant overflow conditions. However, based on the translucency of the polyethylene tanks, documented daily visual inspections would be a sufficient alternative to an alarmed tank level gauge.The Customer drop-off tank is equipped with a level gauge and overfill shut-off. The sump tank "Bread Box" is left open as fluid flows into it and accumulates prior to segregation and transfer to storage as Waste Gasoline or Recyclable Gasoline. During the time of the Site visit the volume of free flowing gasoline in the open sump tank resulted in a significant gasoline fumes/vapors accumulating within the Drain Building. Corrective measures should be taken immediately to avoid potential threat to human health due to exposure (e.g. inhalation) and/or flammable/fire hazard. • Care must be taken to assure hazardous materials encountered within the Drain Building are prevented from leaving the area surrounding the drain building and entering the drain inlets. Measures are in place to prevent hazardous materials from entering the storm drain system as a result of spills or leaks and must be maintained. During the time of the Site visit, improper placement of stormwater BMPs around the stormwater drains were observed. Therefore, corrective measures are required to avoid hazardous materials from enterinq the storm drain. Suggested measures include: Hazardous Waste Tank Assessment Stockton,CA Auto Parts Group—Pick-N-Pull 10 Project No.04.20160002