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physical damage or stress. There are no recommended corrective actions regarding the associated piping at this time. The piping associated with the hazardous waste tank system should continue to be periodically inspected by Site personnel forleaks and/ordamage and repaired as necessary. • The ancillary equipment associated with the hazardous waste tank system is compliant with the regulations identified in 22 CCR 66265. The piping that conveys used oils and antifreeze from open funnels to each respective waste tank act as atmospheric vents and prevent the development of vacuum or pressure within the tanks. Alarmed tank level gauges are not present on the tanks to aid in preventing overfilling the tanks and potential overflow conditions. However, based on the translucency of the polyethylene tanks, and use of visual inspections and a dipstick, documented daily visual inspections are a sufficient alternative to needing an alarmed tank level gauge. The used oil Customer Drop Off tank is equipped with a level gauge and overfill shut-off. There are no recommended corrective actions regarding associated ancillary equipment for the hazardous waste tank system at this time. • Care should continue to be taken to ensure hazardous materials within the Drain Building are prevented from leaving the area surrounding the Drain Building and entering the stormwater drain inlets. Preventive measures are in place to prevent hazardous materials from entering the storm drain system. Such measures include implementation of drain protection, housekeeping, and conducting daily inspections to address any concerns in accordance with Site's Storm Water Pollution Prevention Plan. Findings from the Hazardous Waste Tank System Assessment, evaluated against the requirements identified in 22 CCR Section 66265, are summarized in Table 4. Hazardous Waste Tank Assessment Stockton, CA Schnitzer Steel — Pick -n -Pull 10 Project No. 04.20160002