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Tracy Material Recovery&Transfer Station SPCC Plan sufficiently impervious to contain spilled oil.The ASTs will undergo weekly visual inspections of tanks and supports that are documented in logs attached to each AST(see Section 4.1). The used oil tank will undergo daily inspection as required by California Hazardous Waste requirements. The 1,500 gallon used oil tank has a high level flow cutoff device to prevent spills from tank overfill events. 3.5 Facility Tank Truck Loading/Unloading The Facility does not maintain a tank car and tank truck loading/unloading rack;therefore, the operational procedure requirements in 40 CFR 112.7(h)will not apply. Fuel tanks are located on the site that are filled by fuel delivered in tank trucks, as identified on the site plan, Figure 2. Trucks will collect used oil in a tank truck. Hydraulic fluids, petroleum oils, and antifreeze may be delivered in tank trucks. • Facility Fuel Delivery Tank Trucks 1. The largest potential spill that can reasonably be expected is approximately 25 gallons.This could occur if a valve on the truck or a truck tank was to leak. Drivers are instructed to stay with their trucks and view the unloading operation to assure that a spill does not occur. The tank truck carries a supply of absorbent material and spill kits in the event of a spill. 2. When not in use,the tank trucks will be parked in a location away from storm drain inlets and in a manner that will offer protection against accidental collision from other vehicles. All of the tank trucks and loading/unloading procedures meet the minimum requirements and regulations established by the US Department of Transportation (DOT). Storage tank filling operations are performed to ensure that a tank is not overfilled. Prior to departure of any tank truck, and before beginning transfer of used oil into a tank truck, the lowermost drain and all outlets of such vehicles are visually examined for leaks and, if necessary, tightened, adjusted, or replaced to prevent liquid leaks while in transit. Tank truck deliveries of petroleum oil to the ASTs and removal of the used oil take place approximately monthly. For each tank, a manual gauge is utilized to determine the available volume for product to be added to the tank. This gauge reading correlates to the amount of liquid in the tank. There is also a high level cutoff flapper valve that shuts off feed to the tank at about 95% capacity during the filling process. Hoses and pipes are used to transport product from the supply trucks. General Petroleum is TMR's current supplier of diesel fuel and unleaded gasoline. While transfer operations are taking place the tank truck operator will monitor operations to ensure no spills occur or are cleaned up immediately. TMR will provide, and the tank truck driver will deploy,a storm drain cover mat prior to connecting the diesel fuel October 2019 3-9