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r� <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 <br /> undisturbed soil, or soil removed from an excavation by a backhoe bucket Soil samples <br /> for chemical analysis were retained in the brass liners, labeled, and capped with Teflon <br /> sheets and plastic end caps The samples were then sealed in zip-lock bags, placed on ice, <br /> and transported to the laboratory accompanied by the appropriate chain-of-custody <br /> documentation <br /> Soil Sampling for Stockpiled Soil <br /> Soil samples were collected by advancing 2-inch diameter brass sample liners into the soil <br /> stockpile, after removing approximately 6 inches to 1 foot of surface material in the <br /> sample location One composite sample (four sleeves to 1 sample) was collected per <br /> approximately 100 cubic yards of soil Soil samples for chemical analysis were retained in <br /> the brass liners, labeled, and capped with Teflon sheets and plastic end caps The samples <br /> 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 <br /> Analysis for TPH-g, benzene, toluene, ethylbenzene, xylenes (BTEX compounds), and <br /> MtBE was performed by EPA Method 8015 and 8020 Analysis for lead was done using <br /> EPA method 6010A Analysis for fuel oxygenates was done using EPA Method 8260 <br /> 7G600-019-04-01/PULLDOC A-1 July 7,1999 <br />