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ATTACHMENT A <br /> FIELD AND LABORATORY PROCEDURES <br /> • Attachment A <br /> Field and Laboratory Procedures <br /> Soil Sampling <br /> Soil samples were collected by advancing 2-inch-diameter brass sample liners into soil removed from an <br /> excavation by a backhoe bucket Soil samples for chemical analysis were retained in the brass liners, <br /> labeled, and capped with Teflon sheets and plastic end caps The samples were then sealed in zip-lock <br /> bags, placed on ice, and transported to the laboratory accompanied by the appropriate chain-of-custody <br /> documentation <br /> Soil Sampling from Stockpiled Soil <br /> Soil samples were collected by advancing 2-mch diameter brass sample liners into the soil stockpile, after <br /> removing approximately 6 inches to 1 foot of surface material in the sample location One composite <br /> sample (four sleeves to 1 sample) was collected per approximately 100 cubic yards of soil Soil samples <br /> for chemical analysis were retained in the brass liners, labeled, and capped with Teflon sheets and plastic <br /> end caps The samples were then sealed in zip-lock bags, placed on ice, and transported to the laboratory <br /> accompanied by the appropriate chain-of-custody documentation <br /> Laboratory Analysis of Soil Samples <br /> Soil samples were analyzed for purgable hydrocarbons, BTEX,MTBE, TBA,DIPE,ETBE, TAME, and total lead <br /> • Stockpiled soil samples were analyzed for purgable hydrocarbons,BTEX, and total lead <br />