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Tank Description <br />Tank Contents <br />Tank Type <br />Capacity (gallons) <br />Large 24 Ft Dia. Cylindrical Tank (West) <br />Vertically Mounted, White <br />Diesel Fuel <br />Steel <br />100,000 <br />Large 24 Ft Dia. Cylindrical Tank (East) <br />Vertically Mounted, White <br />Diesel Fuel <br />Steel <br />100,000 <br />Large 12 Ft Dia. Cylindrical Tank <br />Vertically Mounted, White <br />Gasoline <br />Steel <br />13,000 <br />Rectangular Totes (4 @350 gal) <br />Diesel Additives <br />Steel or Plastic <br />1,400 <br />4 Ft Dia. Cylindrical Tank (East End) <br />Horizontally Mounted, Brown <br />On Road Diesel <br />Steel <br />1,000 <br />4 Ft Dia. Cylindrical Tank (East End) <br />Horizontally Mounted, Brown <br />Kerosene <br />Steel <br />1,000 <br />4 Ft Dia. Cylindrical Tank (West) <br />Vertically Mounted, White <br />Motor Oil <br />15W -40 <br />Steel <br />500 <br />4 Ft Dia. Cylindrical Tank (Middle) <br />Vertically Mounted, Gray <br />Antifreeze <br />Steel <br />500 <br />4 Ft Dia. Cylindrical Tank (East) <br />Vertically Mounted, Gray <br />Hydraulic Oil <br />Steel <br />500 <br />Table 6. Fuel Farm Petroleum Products in Tanks and Totes <br />4.1.3.2 Quantities of Material Stored and Secondary Containment (Fuel Farm) <br />By referring to Table 6 above and the tank inventory in Appendix C, it is evident that over 200,000 <br />gallons of petroleum products can be stored in the tanks and containers at any point in time. <br />Secondary containment for the Fuel Farm is provided by an earthen berm lined with an 80 mil VLDPE <br />material overlain with gravel. The total estimated capacity of the secondary containment is 250,000 <br />gallons. Since the largest tank is 100,000 gallons and the containment is 250,000 gallons, adequate <br />secondary containment exists for all containers, as discussed in section 4.1.3.4 below. <br />4.1.3.3 Spill Potential of Materials at the Fuel Farm <br />There are several potential spill scenarios at the Fuel Farm including (but not limited to): <br />(1) Tank rupture within containment - very unlikely, but spill would be captured by containment <br />(2) Hose rupture during filling of vehicles - possible in fueling area on one of the pads <br />(3) Spillage during off- loading from tanker truck - possible on west side of fuel farm <br />(4) Spillage during the fueling of large mining equipment - likely if equipment moves during fueling <br />operations or if operator does not pay attention to details such as replacing fill hoses and staying with <br />vehicle during fueling <br />Should any of the above scenarios actually take place the volume of petroleum products or antifreeze <br />is anticipated to be on the order of <5 to several hundred gallons. <br />4.1.3.4 Spill Prevention and Control at the Fuel Farm <br />The Fuel Farm secondary containment cell is lined with 80 mil VLDPE liner overlain with gravel. <br />Secondary containment volume above the gravel is 250,000 gallons (greater than 110% of the largest <br />tank). The large diesel storage tanks are bottom - filled and bottom - emptied through a manifold <br />located southeast of the contained area. Each tank fill line has a check valve. The diesel, lubricants, <br />and antifreeze storage tanks have level indicators with continuous read out boxes to the nearest <br />1 /10 Overfill protection consists of both audible and visible alarms (horn and lights). The high <br />level alarm is triggered when the fill level reaches one foot from the top of the tank. <br />Additions of the diesel fuel additive are automatic when fuel is added to the tank. A flow controlled <br />Spill Response Plan <br />EMS: AGANA/CCV <br />G: \EMS \Plans \Emergency Response Plans \SRP Plan \SRP Plan.doc <br />Printed Copies are Uncontrolled <br />August 17, 2010 <br />Doc. # E -006 <br />Revision 05 <br />19 <br />