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Page 3 <br /> trenches with the excavator and collecting soil samples from <br /> the bucket and handled as described above. <br /> Stockpile Sampling <br /> Soil stockpiles generated from the fuel UGSTs and line <br /> removal were sampled by collecting 4 discrete soil samples <br /> for approximately every 50 cubic yards of excavated soil. <br /> These four samples were then composited in the laboratory <br /> and analyzed as one. Soil samples were collected by removing <br /> the top 12 to 24 inches of soil, pushing a 2" x 6" brass <br /> tube into the soil stockpile until completely full, then <br /> removing, sealing and handling tube as already described. <br /> Soil sample designations are SP-la-d through SP-5a-d for <br /> samples collected from stockpiles generated from the fuel <br /> UGSTs and line removals (approximately 250 cubic yards ) . <br /> Stockpiled soil generated from the waste oil tank removal <br /> (approximately 50 cubic yards ) were sampled discretly for <br /> approximately every 12 1/2 cubic yards then composited in <br /> the laboratory and analyzed as one sample for approximately <br /> every 25 cubic yards . These samples are designated WS-la&b <br /> and WS-2a&b. Soil sample designated WXS was collected from <br /> the soil generated from the overexcavation along the western <br /> edge of the waste oil pit and represents approximately 15 <br /> cubic yards . <br /> ANALYTICAL RESULTS <br /> Analytical laboratory reports and chain-of-custody form are <br /> attached in Appendix A. Summaries of the soil analytical <br /> results are presented in Table A and Table B. The fuel UGST <br /> excavation, trench and associated stockpile samples were <br /> analyzed for Total Petroleum Hydrocarbons calculated as <br /> Gasoline (TPH-Gas ) according to EPA Method 8015 (modified) , <br /> and Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX) <br /> according to EPA Method 8020, EDBs and volatile Organic <br /> Compounds according to EPA Methods 504 and 8240, and Total <br /> Lead according to EPA Method 7420 . <br /> Additional analysis for samples collected in the former <br /> waste oil tank excavation and associated stockpiles also <br /> include TPH-Diesel according to EPA Method 8015 (modified) , <br /> ICAP Metals according to EPA Methods 6010, 7196 and 7420, <br /> Total Oil and Grease (TOG) according to EPA Method 3550, and <br /> Polychlorinated Biphenyls (PCBs) according to EPA Method <br /> 8080 . <br />