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Table 1 Oil Containers/Equipment Containing 55 Gallons or Greater Other General Dedicated Containment Direction of flow Container Dedicated System(s)' from containers Container Name Container Location' Contents Capacity, Secondary Secondary Containment (Required unless (process sewer or gallons' Containment?a Volume,gallons dedicated stormwater containment drainage) provided) Secondary Containment Yes,tank room Tank 1 Adjacent to Lubrication Used Oil 7,846 containment wall 11,420 No Isolated Bay Secondary Containment Yes,tank room Tank 2 Adjacent to Lubrication Virgin Oil 7,846 containment wall —11,420 No Isolated Bay Secondary Containment Yes,tank room Tank 3 Adjacent to Lubrication Virgin Oil 7,846 11,420 No Isolated Bay containment wall Secondary Containment Yes,tank room Tank 4 Adjacent to Lubrication Virgin Oil 7,846 —11,420 No Isolated Bay containment wall Secondary Containment Yes,tank room Tank 5 Adjacent to Lubrication Empty 5,800 containment wall 11,420 No Isolated Bay Tank 6 Lubrication Bay Area Diesel Fuel 250 Yes,facility drainage —400 No Toward Floor Drains to sump Tank 7 Lubrication Bay Area Diesel Fuel 250 Yes,facility drainage —400 No Toward Floor Drains to sump Various oil- Yes,Contained to Adjacent to Lubrication containing Typical 12 Mechanical Room or Drums Ba products in drums (55 Lubrication Bay and —400 No Toward Floor Drains Bay 55-gallon gallons each) floor drains direct to drums oil/water separator 'Locations are shown on site map using container name 'Rate of flow that results from any type of failure(overflow,rupture,or leakage)assumed to be the container capacity released over a one-hour period. EPA uses this approach in its guidance documents. s Mandatory for bulk storage containers. Other types of containers must have either dedicated secondary containment or one of the other means of general containment from options listed at 112.7(c).°General Containment Systems from 112.7(c):(i) Dikes, berms,retaining walls,(ii)curbing or drip pans,(iii)sumps and collection systems,(iv)culverting,gutters,or other drainage systems,(v)weirs,booms,or other barriers(vi)spill diversion ponds,(vii)retention ponds,or(vii)sorbent materials. 5 Occurs only if dedicated secondary containment fails or is bypassed.