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Operational changes <br />taken to prevent <br />recurrence: None <br />V. FLOW DIRECTION (POTENTIAL SPILLS) [112.7(b)] <br />Most of the yard surface runoff is contained within the yard limits. Flow within the area of the <br />separation plant is directed back to the oil trap for recycling. Flow in Area 3 - Diesel Storage is <br />directed to the oil/water separator for recycling. The drains in the containment around Tank No. <br />6 are normally closed. The drain at the pump skid, Truck Unload Spot (I), routes flow to the <br />oil/water separato . <br />Most of the flow i the diesel shop area (Area 4) is into drip pans and directed to the separation <br />plant through the facility drainage system, or contained in local topographic lows. Flow from the <br />lube oil tanks would be contained in a concrete basin. Flow from the lube oil unload spot (0) <br />would be into the yard drainage system to the separation plant. <br />Flow directions fr <br />estimated quantiti <br />Table 2. <br />Type of Failure, <br />Spill or Release <br />AREA 1 <br />m oil use areas are indicated on Figures 2, 3, and 4. Spill scenarios, including <br />s or flow rates and anticipated ultimate discharge points, are summarized in <br />Gasoline Tank (No. 2) <br />Rupture <br />AREA 2 <br />Sludge Tank (No. 3 <br />Rupture <br />Separation Plant <br />Pumps spill (B,C,D <br />TABLE 2 -- FLOW DIRECTIONS <br />Estimated <br />Quantity or Flow Ultimate <br />Flow Rate Direction Discharge Point <br />500 gal North Local topographic lows <br />3,000 gal South Separation Plant <br />250 gpm Oil Trap Separation Plant <br />Sludge Loading (E,) 3,000 gal Lateral or Local topographic lows <br />Spill into Drains or Separation Plant <br />Waste Oil Tank (No 9) 10,000 gal Oil Trap Separation Plant <br />Rupture <br />Spill Prevention C�ntrol and Countermeasure Plan: Stockton Page 5 <br />