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SOIL CONFIRMATION SAMPLING <br /> Samples will be collected from the western corner of the T-3 excavation to confirm that all <br /> contamination has been removed Specific sampling sites are depicted in Figure 4 One <br /> sample will be collected from each of the four wails of the new excavation area and one <br /> • sample will be collected from the base of the new excavation Alsonample will be <br /> composited from the excavation spoils <br /> • The samples will be collected using a backhoe. The backhoe bucket will be filled with soil <br /> from the desired sampling location in the excavation A geologist, using a hand trowel, will <br /> rapidly remove approximately 6 inches of soil from the surface of the soil The samples will <br /> • be collected in 6-inch long brass tubes which will be driven into the fresh soil surface using <br /> a rubber mallet The sample tubes will be driven into the soil profile so as to allow no <br /> headspace to remain in the sampler Following retrieval from the soil, both ends of the <br /> •0 brass tubes will be covered with Teflon sheeting, securely capped with polyethylene end <br /> caps, labeled, and placed into a ice chest containing Blue Ice 'to be kept at 4°C for <br /> transport to the laboratory for chemical analyses Samples will be delivered under chain- <br /> of-custody to American Environmental Laboratories Corporation (State Certification <br /> No 1233) for analyses <br /> The hand sampling equipment will be decontaminated between each sampling event by <br /> washing in a Liqui-Nox solution followed by rinsing first with tap water and then with <br /> deionuzed water <br />• <br />• <br /> i <br /> r161a in(zW4) Page 11 <br /> AMERICAN <br />