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APPENDIX II <br /> EXPLORATORY SOIL BORING SAMPLING PROTOCOL <br /> 1.0 SOIL BORING PROCEDURES <br /> Soil borings will be advanced until the base of hydrocarbon contamination is reached or the <br /> first groundwater is encountered. Samples will be obtained in the manner outlined in <br /> Section 2.1 below. <br /> During the drilling program a soil log will be maintained for each boring according to the <br /> Unified Soil Classification System by a California Certified Engineering Geologist. <br /> 2.0 SOIL SAMPLING PROTOCOL <br /> 2.1 Soil Sampling with Drill Rig <br /> A two and one-half inch diameter split spoon sam ler fitted with three six inch brass sample <br /> tubes will be used to collect samples. In each borehole, samples will be collected at ten foot <br /> intervals or as appropriate. After drilling to each sampling depth, the sampling apparatus <br /> will be inserted into the hollow auger and driven into the undisturbed soil beneath the <br /> borehole. <br /> Upon recovery, the lower two sample tubes, designated A and B, will be sealed by covering <br /> with aluminum foil, capping with plastic and sealing with cloth tape. This sample recovery <br /> method minimizes head space in the sample tub s. The samples will then be stored on ice <br /> pending delivery to a certified laboratory for chemical analysis and accompanied by <br /> appropriate Chain of Custody documents. Thematerial in the third tube and in the sample <br /> "shoe" will be examined and described, then discarded. Sample descriptions will include <br /> lithology, moisture content, fossil content, and odor. Lithologic logs for each borehole will <br /> be compiled utilizing the sample descriptions. <br /> APPENDI III <br /> 1 <br /> L <br />