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Smith Environmental Technologies Corporation <br />Quality Asstumcc/Quality Control Plan <br />Revised February 1995 <br />sewer. Drummed water will be labeled with the source of the water to help ensure appropriate disposal <br />based on contamination levels. <br />11.0 SOIL SAMPLING PROTOCOL <br />11.1 Sample Collection During Drilling Activities <br />A proposal will be submitted to the lead regulatory authority with proposed boring/sampling <br />locations. The exact location and number of borings at each site will be determined in the field <br />by the Project Geologist/Engineer. <br />Prior to arriving at the sample site, the drill rig/augers will be steam cleaned and all sample <br />equipment will be cleaned. Cleaning will be conducted on-site on all sampling equipment <br />between each sample interval. <br />Soil samples will be obtained using a California modified split -spoon sampler containing three <br />6 -inch long, 2 -inch diameter brass tubes. The sampler will be driven 18 -inches ahead of the <br />hollow stem auger by a 140 -pound hammer with a 30 -inch drop in accordance with American <br />Society for Testing and Materials (ASTM) Methods D 1586-84 for split barrel sampling of soil <br />and D 1587-83 for thin-walled tube sampling of soils. The blows required to drive the sampler <br />each 6 -inch interval will be recorded on the boring log. The sampler will be removed from the <br />boring and opened to reveal the brass tubes. The bottom tube will be sealed with aluminum <br />foil or teflon tape and plastic end caps, taped and labeled with the following information: <br />✓ date and time <br />✓ project ID <br />✓ sample ID <br />✓ name of sampler <br />✓ type of analysis to be performed <br />=:.AshdlslQAQC-95.wP5 <br />10 <br />• <br />SWFH <br />