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The exterior of the tanks are inspected daily for any signs of leakage. <br />Any fuel leakage from the primary steel tank would be contained in the <br />annular space. <br />The dispenser nozzles used for filling vehicles from these tanks are <br />equipped with automatic shut-off devices. The Transmission and <br />Regulation Supervisor 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 />a) Hazardous -Waste Storage Area <br />One to two 55 -gallon drums of miscellaneous liquid residue generated by <br />the gas transmission and regulation crews are stored in this area. These <br />drums typically contain: spent solvents, glycol and insulating oil. <br />Hazardous wastes are temporarily stored here prior to shipment to a <br />licensed hazardous waste disposal facility. Proper barricades and <br />placards are posted and the area is roped off for added safety. <br />Possible Spill Occurrence: <br />i) Small spills could occur during transfer of waste from a smaller <br />container to a drum. A maximum of 5 gallons could be spilled. <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 could be spilled. <br />3-3 <br />