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5 , <br /> �Z_MVA <br /> November 14, 1992' Working To Restore Nature <br /> Beacon Station No.492,,Manteca, California <br /> s <br /> Soil samples selected for laboratory analysis_were.removed from-the sampler.and quickly <br /> sealed in their brass sleeves'with Teflon tape and plastic caps.. The-sample containers were <br /> .labeled in the field with the job pumber, sample location and depth,,and date, and promptly <br /> placed in iced storage for. transport to the -laboratory.. Chain of Custody Records were <br /> initiated in the field by the geologist and accompanied the samples to a laboratorycertified <br /> by the State of California to perform the analyses requested. <br /> Logging of Borings <br /> Soil cuttings and samples were logged using the Unified Soil Classification System. Sample's <br /> not selected for chemical analysis and the soil.in the-sainpler shoe were extruded in the field . <br /> and examined using visual.and.manual methods: Logs include records of texture, color, <br /> moisture, plasticity, consistency, blow counts, and any other characteristics rioted along with <br /> evidence for the presence of hydrocarbons such as soil staining, obvious product odor, and <br /> PID readings. . <br /> Sample Labeling and Handling <br /> Sample containers were labeled in the field with the job number, sample location and depth, <br /> and date and promptly placed 'in.ice'd'storage for-transport to-the laboratory. A Chain of <br /> Custody.Record was initiated by the_technician and accompanied the sample to a-laboratory <br /> certified'by the State-of .California for the analyses requested. Samples were transported <br /> promptly to the laboratory. Samples in our custody were properly disposed of after their <br /> useful life had expired. <br /> 86102-9 <br /> 1029kear <br />