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C1 <br /> Soil Sample Collection <br /> Soil samples were collected in a two-inch diameter California modified split-spoon <br /> P � <br /> sampler at intervals of five feet unless sample tool refusal was encountered. The sampler <br /> was driven in advance of the augers to collect relatively undisturbed samples for logging <br /> and possible laboratory analysis. Blow counts were recorded for each six-inch interval. M <br /> Refusal was reached if a total of fifty blow counts were required to drive the sampling tool ° <br /> six inches. Sampling for that interval was then'suspended and drilling was resumed. <br /> Soil samples from the split spoon were collected in clean brass or stainless steel sampling 4 <br /> tubes. Once retrieved from the split spoon, liner ends were covered with plastic end caps <br /> to inhibit the escape of water vapor. <br /> All soil samples collected for laboratory analysis were labeled with the location, date and <br /> } ; time, and immediately placed into a cooler chilled to 4° Celsius and containing glue ice" } <br /> coolant. All sampling information was recorded on the boring log forms. <br /> ! F <br /> The site geologist described all soil samples in the field. Field observations noting <br /> sediment type, color, grain size, sorting, hardness,texture, clay content, moisture content, F <br /> visible evidence of contamination, odor, and any other information important to the 1 <br /> F investigation were recorded in the field on appropriate log forms by the site geologist. <br /> F <br /> 3 <br /> FJ <br /> I� <br /> k <br /> r <br /> ®Western Design/David Avila 2000 31 <br /> I <br />