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i <br /> f <br /> F Y <br /> ATC Associates Inc. <br /> Quality Assurance/Quality Control Plan <br /> Revised March 1998 <br /> ✓ name of sampler <br /> ✓ type of analysis to be performed <br /> This sample will be immediately placed into a cooler containing dry ice or frozen chemical <br /> ice. A "high-low" temperature recording thermometer will accompany sample shipments to <br /> ensure proper temperature maintenance. The samples will be delivered to a state certified <br /> laboratory following under chain-of-custody protocol within 48 hours of sampling, <br /> 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 /> a <br /> data/interpretations will also be recorded. Soil properties may also be determined from the <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 <br /> samples. The disposable gloves will be discarded after collecting samples from each 18- <br /> inch sample drive. <br /> Soil samples will be collected at 5-foot intervals, at significant changes in lithology and <br /> intervals of obvious contamination in order to develop a complete profile of soil <br /> contamination. <br /> 11.2 Sample Collection During Removal <br />'G <br /> W:\AdminNShel1s\QAQC-98.DOC <br /> 11 <br /> r. <br />