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Spill Prevention, Control and Countermeasure Plan Tesla Treatment Facility Page 13 of 45 The Tesla Treatment Facility stores and maintains on a temporary basis, small quantities of portable containers with lubricant oil and waste oil in the Hazardous Materials Containment Area. These oil and petroleum product containers are stored indoors on spill pallets in the UV Building and Chemical Storage Building and are exempt from the SPCC Rule because container capacity is less than 55 gallons. Spill pallets and storage cabinets provide secondary and/or tertiary containment. In the event of a spill or discharge from these containers, spill response supplies are available for use by facility operators. 2.3.5 Discharge Prevention Measures [40 CFR§112.7(a)(3)(ii)] The potential of oil discharge as a result of tank or equipment failure or malfunction, or from routine product handling and facility operations, is considered to be low due to the following discharge prevention measures. 2.3.5.1 Movement of Bulk Oil Diesel fuel is delivered infrequently and on an as-needed basis to the bulk storage tanks at the Emergency Power Generation Facility. The tanker truck pulls up to the loading/unloading area on the south side of the bulk storage tanks. Facility operators provide access to the automated fuel port and operational controls(SimplexTM Automated FuelPort) and facilitate the off-loading of the diesel fuel delivery. The system provides for ground-level connection of the tanker truck fill hose, and a containment box to capture spills and drips that may occur during fuel transfer. The fuel port is equipped with automatic filling and overfilling protection control devices and spill detection sensors and alarms. Fuel transfer is summarized in the ensuing Table 2-2. Discharge prevention measures during transfer of diesel fuel include the following: • Transfer operations are conducted only by certified tanker truck operators and with the assistance of trained facility operators. • The loading line and hose contain automatic shut-off valves to prevent the release of diesel fuel in the event of a hose failure. • The loading line and hose between the loading valve and tanker truck valve is fitted with a bleeder line to release the contents to a safe place after loading is completed. • The pump station has a vapor return hose for returning vapors from the tanker truck. The vapor hose has an automatic shutoff valve to prevent release of vapors in the event of a failure. All suppliers must meet the minimum requirements and regulations for tank truck loading/unloading established by the United Sates Department of Transportation (USDOT). The Chief Stationary Engineer ensures that the vendor understands the site layout, knows the protocol for entering the facility and unloading product,and has the necessary tools and equipment to respond to a spill or discharge from the tanker truck or fuel delivery hose.