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Work Plan September 5, 1990 <br /> ARCO Station 548, Stockton, California AGS 30004-1 1 <br /> Chain of Custody Record is also included in the appendix. After the borings are terminated, <br /> the borings will be backfilled with a slurry of cement, bentonite, and water. <br /> Disposal of Soil Cuttings <br /> Y Soil cuttings generated during drilling will be stored onsite and covered with plastic sheeting. <br /> F' If possible, drill cuttings exhibiting subjective evidence of gasoline hydrocarbons or <br /> producing a positive response on the PID will be separated from those drill cuttings <br /> evaluated as having no gasoline hydrocarbons. At ARCO's request,we will submit the soil <br /> ® samples to the GSX Lokern Facility in Buttonwillow, California, for a profile analysis. <br /> y; ARCO will be responsible for the disposal of the cuttings. <br /> >s: <br /> y. <br /> LABORATORY ANALYSES <br /> A copy of a signed Authorization to Release Analytical Data form is included in the <br /> appendix of this.work pian. Soil samples collected at 10 to 15-foot intervals will be. <br /> submitted to a laboratory certified by.the State of California. In addition, the bottom two <br /> ® samples will be submitted to the laboratory. <br /> I�. 10 <br /> 4 <br /> A0010d 4.7eoSyStenw <br />