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rrNA5r: r 3 a . <br /> r <br /> APPENDIX C <br /> HOLLOW-STEM AUGER DRILLING AND SOIL SAJIPL1NG PROCEDURES <br /> from soil without 'n <br /> Undisturbed <br /> soil samples will be recovered ntervals liquids from ground <br /> the borings. Soil samples as core will be taken at 5-feet depth <br /> surface to termination depth, or through the aquifer zone of interest far litholagic <br /> logging. <br /> Borings will be drilled with a hollow-stem auger and szmpled with a California or <br /> modified California-type split-spoon sampler. Soil samples will be of sufficient volum: <br /> to perform the analyses which may be required, including replicate analyses. <br /> neer or engineering geologist who <br /> Soil from all borings will be described in deta.ienuiing 'the Unified Soil Classification <br /> System and will be logged by a geologist, civil g <br /> registered or certified by the State of California and is experienced in the use of <br /> re <br /> is g <br /> the Unified Soil Classification System. <br /> All wet zones above the free water zone will be noted and accurately logged. <br /> r <br /> ,ected in clean brass or stainless steel sampling tubes is fall <br /> he <br /> Soil samples will be coli .� <br /> split-spoon. Sediment traps will be used when tubes nsolida will bed cut apart r using 'a clean <br /> from the sampler during retrieval. The brass <br /> knife. The ends of the tubes will be coverer witthin <br /> ofTeflon <br /> ducttntapetape <br /> and <br /> aluminum foil beneath plastic end caps and <br /> erly labeled. The samples will be stared on ice at a temperature of h degrees <br /> Pro P <br /> Celsius. <br /> Drill cuttings will be stored on site in 55-gallon drums or covered with plastic sheeting• <br /> nal tical results will be submitted immediately to the n tite owner tco completed fordetermination <br /> dwells s <br /> Analytical be <br /> y <br /> of appropriate disposal procedures. The soil boring <br /> backfilled with a cement grout. <br /> ._. 1 <br />