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ResponseSpill <br /> CountermeasuresNEWMONT •r the Cresson Project <br /> .• Relations <br /> 4.2 Ironclad Facility and New Truck Shop <br /> The Ironclad Facility(Figure 3) consists of the Ironclad Shop/Warehouse with a bulk oil storage room,the old truck <br /> maintenance shop with a lube service bay.The small vehicle shop includes,the small vehicle wash bays, a <br /> Hazardous Materials Accumulation and Storage Room, and a bulk oil off-loading facility. Locations of SPCC <br /> regulated and nonregulated AST storage are depicted in Figure 3 and listed in Table 3a and Table 3b. <br /> Inside the Ironclad Shop/Warehouse-Several ASTs are located inside a concrete secondary containment structure <br /> at the Ironclad Shop/Warehouse.This large bulk oil storage room is located north of the maintenance bays and the <br /> room itself provides 25,700 gallons of secondary containment.A major upgrade to this storage area was <br /> completed in 2010, consisting of refurbishment of the floor with new concrete,cleaning and disposing of oil <br /> contaminated soils, and placement of drip pans in strategic locations where petroleum products are stored. <br /> Spills from these containers would either report to the building sump or the secondary containment vat provided <br /> in the Oil Room. <br /> Outside the Ironclad Warehouse-ASTs located outside the Ironclad Warehouse. One 500-gallon propane tank is <br /> located east of the Warehouse.Two 1,000 gallon propane tank and dispenser are located west of the Warehouse, <br /> along with one 1,000 gallon propane located south of the Technical Services Building(aka School House). <br /> Inside/Outside the NTS—The NTS(Figure 3)consists of a large bulk oil storage room,the truck maintenance shop <br /> with a lube service bay, large vehicle wash bays,a burner room with heaters, and a bulk oil off-loading facility. In <br /> addition to the bulk oil storage areas,there are other petroleum storage containers located in the work areas of <br /> the NTS.Additionally there is an oil water separator and skimmer that holds oily water in the large vehicle wash <br /> bay. One 500-gallon propane tank is located outside the NTS on the northeast corner of the building. <br /> 4.2.1 Material Storage/Secondary Containment <br /> By referring to the tank inventory in Table 2a and Table 2b, it is evident that approximately 66,000 gallons of oil <br /> can be stored in the containers at the Ironclad Facility and NTS at any point in time.Approximately 4,000 gallons of <br /> propane capacity exists outside of the facilities, and 5,000 gallons of antifreeze can be expected to be in storage. <br /> Smaller quantities of aerosol can residues(<55 gallons) may also be present.The tank inventory in Table 2a lists <br /> the volume of SPCC regulated secondary containment for the Ironclad and NTS storage and use areas. <br /> 4.2.2 Potential Spill Scenarios, Volumes and Direction of Flow <br /> The greatest potential for spills at the Ironclad Facility is in the transfer of used oil into the drip tray units when <br /> changing oil or the transfer of fluids in the drum and tote storage area of the warehouse. In either case,the <br /> quantities spilled would most likely be on the order of several gallons. In the unlikely event of a large tank rupture <br /> in the Oil Room,several hundred gallons could report to the secondary containment vat, but there is virtually no <br /> chance that oil spilled could escape containment in the covered and contained building.The overall spill potential <br /> is rated as low. <br /> The greatest potential for spills at the NTS is in the transfer of used oil into the drip tray units when changing oil. <br /> Another potential spill scenario is when fluids are off-loading of oil products from bulk tank trucks. In either case, <br /> the quantities spilled would most likely be on the order of several gallons. In the unlikely event of a large tank <br /> rupture in the Oil Room,several hundred gallons could report to secondary containment, but there is virtually no <br /> chance that oil spilled could escape containment in the covered and contained building.The overall spill potential <br /> is rated as low. <br /> The overall spill potential from oil-filled electrical transformers is low.The units are new, modern installations,and <br /> are mounted on concrete slabs. <br /> - ---. <br /> Department THIS DOCUMENT IS UNCONTROLLED IN HARDCOPY FORMAT Doc Id:NA CCV-SER-PLAN- <br /> 1930 <br />