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Any fuel leakage from the primary steel tank would be contained in the <br />annular space. The dispenser nozzles used for filling vehicles from these <br />tanks are equipped with automatic shut-off devices. The General <br />Foreman is responsible for the tanks and their contents. <br />Possible Spill Occurrence: <br />i) Overfilling: The greatest spill potential is from overfilling <br />during the fuel transfer process (i.e. filling the <br />tank). Spill prevention consists of constant <br />supervision during the filling process. The <br />maximum volume of fuel that could reasonably <br />be expected to discharge would be <br />approximately 5 gallons. <br />ii) Hose Leakage: Hoses from the tanks would crack and seep <br />before a complete severing would occur. The <br />leakage would be noticed during pumping and <br />would stop when the pump stopped. <br />2) Drum Storage <br />55 -gallon drums of petroleum products are stored at this facility. All <br />55 -gallon drums used for storage are DOT Spec. 17E Drums. <br />•• Storage Container <br />MW <br />A maximum of four 55 -gallon drums of miscellaneous liquid wastes <br />generated by the gas and electric operation crews are stored in a <br />6'x4'x8' metal storage container. These drums typically contain: <br />gasoline and water mix; used motor oil; and mineral oil. There could also <br />be drums of PCB contaminated oil stored here. Hazardous wastes are <br />temporarily stored here prior to shipment to a licensed hazardous waste <br />disposal facility. Proper barricades and placards are posted. The storage <br />container has a false floor with a containment sump below. The <br />impermeable sump would contain any oil spilled within the container. <br />Possible Spill Occurrence: <br />i). Small spills could occur during transfer of oil from a smaller <br />container to a drum. A maximum of 5 gallons could be spilled and <br />the oil would be contained within the sump. <br />ii) The largest potential spill would be from the rupture of a drum due <br />to overturning during handling (manually or with a forklift). A <br />maximum of 55 gallons of oil could be spilled. Interior spills would <br />be contained within the sump. <br />3-3 <br />