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0 <br />removed and placed on plastic sheeting on the side of the excavation. Clean material suitable for <br />backfill will be kept separate from possible contaminated materials. Samples of the total <br />excavated soil stockpiled will be collected and analyzed to determine the proper disposal method <br />for this soil. <br />Pine Removal ^ o/ <br />� <br />�'V� <br />All accessible pipit associated with the tank will be removed and disposed of at an <br />appropriate disposal facility. The piping located beneath buildings will not be excavated. These <br />pipes will be filled with a grout mixture and capped ! <br />Tank Removal <br />The tank will be removed with a backhoe. Care will be taken while removing the tank to <br />reduce the potential for spilling any residual contents into the excavation. Upon removal, the <br />tank will be inspected to determine the number and size of holes and the degree of corrosion <br />present. The tank will also be photographed. The tank will be loaded onto a flatbed truck for <br />nsport off-site to a licensed facility. The tank ballast slab, if present, will be broken up with a <br />�ehydraulic hammer, attached to the backhoe, and removed from the excavation. The concrete will <br />be kept separate from other excavated materials and disposed of at an appropriate facility. <br />2.4.3 Excavation of Contaminated Material n ^ va, '5" <br />OUB <br />The objective of excavating contaminated material is to remove a continuing source of <br />contamination of soils and ground water. Based on laboratory analytical results, the excavated <br />soil will be disposed of in a Class I or II landfill. The following paragraphs describe the <br />excavation procedures. <br />If no visual contamination exists after tank removal and the photoionization detector <br />(PID measurements are equal to background measurements, the pit will be backfilled and <br />compacted with clean soil and brought up to grade. Soil samples will be taken from below the <br />tank and associated piping and from the sidewalls of the pit prior to backfilling. <br />If soil contamination is observed, soil samples will be collected as specified in the above <br />paragraph, and the pit will be enlarged outward and downward as needed. Visual observation of <br />contamination will be used to determine the extent of excavation. A maximum of 75 cubic yards <br />of soil will be removed. The excavation will be limited if any of the following conditions exist: <br />12 <br />I <br />