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TL 489-0589-02 Page 8 <br /> The water (rinsate) generated from the decontamination of the <br /> drilling equipment was containerized. in 55-gallon steel drums. <br /> 4.4 Sample Shipment and Chain-of=Custody_ Procedures: Records <br /> were developed for all soil samples including �sampling 'date, sample <br /> type, sample location, and, method of . preservation. The soil <br /> samples were labelled and immediately, placed on° ice at the site and <br /> maintained on ice until they were delivered to Twinings Laboratory <br /> in Fresno. <br /> Chain-of-custody procedures, described in Test . Methods for <br /> Evaluating Solid Waste, 3rd ed. , 1985, were followed,. Copies of <br /> the chain-of-custody documentation associated with the soil <br /> sampling and transport are presented in Appendix A. <br /> L4.5 Laboratory Procedures: Analytical tests were performed <br /> on the soil samples collected at five, ten, and 15 feet BSG (from <br /> p <br /> soil borings B-1 through B-4) to determine the presence of B, T, E, <br /> X, TPH--G, .and TPH-D. <br /> Twining is a California Department of Health Services <br /> certified Hazardous Waste and Drinking Water Laboratory <br /> (Certificate No.. 1371) . The type of analysis, method of <br /> C d <br /> preparation, and analytical methods -used to test the soil samples <br /> collected from the site are summarized in Table No. I. <br /> Fresno Modesto Visalia Bakersfield <br /> L <br />