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y <br /> i <br /> (v <br /> l <br /> FWI D METHODS <br /> 'ram Tmk <br /> Soil from a sample location in the lank cavity is brought to the ground surface in an <br /> excavator bucket, and the outer soil is scraped away. A clean, 6-inch-long, 2-inch- <br /> diameter, clean brans tuba is driven into the soil using a percussion sampler. The brass <br /> tube is removed and the ends are covered with aluminum foil and plastic end caps and <br /> taped. The tube is labeled and immediately placed on ice for transport to fhe <br /> : laboratery. Chain of Custody Records are initiated in the field and maintained <br /> throughout delivery to the laboratory. <br /> ackfiill Maternal <br /> C011 M <br /> Soil samples are collected from stockpiled soil and backfill material to evaluate <br /> treatment and disposal options. Four soil samples are collected for every St) cubic yards <br /> of stockpiled soil. Each group of four samples is composited into one sample by the <br /> t laboratory. Soil samples ar:, collected in clean brass tubes from approximately 6 inches <br /> i below the surface of the stockpiles. The brass tube is removed and the ends are covered <br /> with aluminum foil and plastic end caps and taped. The tube is labeled and immediately <br /> placed on ice for transport to the laboratory. Chain of Custody Records are initiated ir. <br /> the field and maintained throughout delivery to the laboratory. <br /> .i • <br /> i <br /> I <br /> r <br /> 1 • <br /> ACOP//ed aeoSmstems <br /> )it <br />