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a <br /> APPENDIX A <br /> Page 3 <br /> Excavation Sam lin - <br /> 1 <br /> Soil samples were collected using clean, two-inch diameter, six-inch long brass tubes obtained <br /> �. <br /> from <br /> o each sample location with an excavator bucket.using a_rubber m, allet. The tubes were <br /> sealed with polytetrafluoroethylene-(PTFE)-coated sheets, plastic end caps and duct-tape to <br /> �- <br /> -reduce volatile-hydrocarbon loss, ,placed in an ice chestcontaining ice, .and submitted under , <br /> chain-of-custody to.a California-certified-laborator . Selected samples were analyzed for TPH <br /> and BTEX. <br /> Stockpile Sampling' <br /> Stockpile soil samples were collected by excavating one to three feet'below the stockpile surface ; <br /> and driving'two-inch diameter, six-inch long brass tubes into the soil. .The,tubes were sealed <br /> with polytetrafluoroethylene (PTFE)-coated sheets,plastic end caps and duct tape to reduce <br /> volatile hydrocarbon loss. Four samples were collected from every 50 cubic yards of stockpiled.'_ <br /> S <br /> soil and composited into one sample in the laboratory. -All samples were placed in an ice chest <br /> containing ice,'and submitted under chain-of-custody to a California-certified laboratory. . <br /> Samples were analyzed for TPH and BTEX: <br /> L:L WALLACE•KUHL <br />- Rec ded Pape &ASSOCIATES INC. <br />