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The tank and the associated piping have a continuous leak monitoring <br />system: one located in the tank's annular space; and one in the pipeline <br />collection sump. The monitoring system activates an audible and light alarm <br />in the Garage Building. If an alarm is activated, an assessment to determine <br />the cause will begin and may include leak testing. The tank fill -pipe is <br />equipped with a 20 -gallon overfill box which is product -tight to contain spills <br />due to overfilling. The dispenser nozzle used for dispensing hydraulic oil in <br />the Garage is not equipped with a automatic shut-off device. The Division <br />Transportation is responsible for the tank and its contents. <br />Possible Spill Occurrence: <br />i) Overfilling: The greatest spill potential is from overfilling during <br />the oil transfer process (i.e. filling the tank). Spill <br />prevention consists of constant supervision during the <br />filling process. Any fuel spilled during the filling <br />process would be contained in the overfill box. <br />ii) Oil The possibility of a spill during the oil Transferring: <br />transfer process to a smaller container within the <br />Garage would be minimal. Constant supervision <br />during the transfer process and inspection of the <br />transfer equipment minimize the possibility of a spill. <br />No more than 5 gallons could reasonably be expected <br />to spill and it would be confined within the building. <br />4) Aboveground Oil Storage Tanks <br />The facility has two aboveground storage tanks, one 150 -gallon tank which <br />stores transmission oil, and one 250 -gallon tank which stores motor oil. <br />Both tanks are located in the wash rack area of the Garage. The Garage <br />Foreman is responsible for the tanks and their contents. <br />Possible Spill Occurrence <br />i) Oil Transfer: The greatest spill potential is during the transferring <br />process (from containers to tanks or tanks to <br />containers)• Spill prevention consists of constant <br />supervision during the transfer process. The <br />maximum volume of oil that could reasonably be <br />expected to discharge during transfer is 3 to 5 <br />gallons, and it would be contained within the interior <br />of the Garage or the oil/water separator in the wash <br />rack area. <br />tE <br />