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Smith Technology Corporation <br /> Quality Assurance/Quality Control Plan <br /> Revised February 1995 <br /> 3 <br /> This sample will be immediately placed into a cooler containing dry ice or frozen chemical ice. <br /> A "high-low" temperature recording thermometer will accompany sample shipments to ensure <br /> i <br /> proper temperature maintenance. The samples will be delivered to a state certified laboratory <br /> following under chain-of-custody protocol within 48 hours of sampling,whenever possible. <br /> Soil in the uppermost brass tube will be described according to ASTM standard practice for <br /> description and identification of soils (ASTM D-2488-84). Stratigraphic, genetic and "other <br /> data/interpretations,will also be recorded. - Soil properties may also be determined fromthe <br /> middle brass tube and from the sampler shoe. Alternatively the second sample tube may be <br /> used with the uppermost tube for preparation of duplicates. These field observations will be <br /> noted on a log prepared for each boring/well. <br /> During sampling, latex gloves will be worn to prevent cross-contamination with other samples. 1 <br /> The disposable gloves will be discarded after collecting samples from each 184nch sample <br /> drive. <br /> Soil samples will be collected at 5-foot intervals, at significant changes in lithology and intervals } <br /> of obvious contamination in order to develop a complete profile of soil contamination. <br /> i <br /> p <br /> 11.2 Sample Collection During Tank Removal <br /> Soil samples will be collected as soon as possible after removal of the tank. Where feasible, all <br /> preparations for soil sampling will be made prior to tank removal. Soil samples collected{from <br /> a backhoe bucket or directly from the excavation floor will be collected in a thin-walled w <br /> stainless steel or brass cylinder at least 3-inches long by 1-inch in diameter. From 3 to 24- <br /> f <br /> W AAdminlShells1QAQC-97.DOC <br />