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SAMPLING PROTOCOL <br />�I <br /> Drilling <br /> Permits were obtained for the borings before drilling began The soil bonngs were <br /> accomplished using a mobile mounted drilling ng employing the use of a hollow stem <br /> flight auger no less than 3'/ inch i d and 8 718 o d <br /> All drilling equipment was thoroughly steam cleaned before drilling began, to prevent <br /> the introduction of contamination from off site, and between bonngs to prevent cross <br /> contamination <br /> The bonngs were logged under the direct supervision of a registered geologist using the <br /> Unified Soil Classification System (Appendix C) The color, texture, moisture, <br /> plasticity (if applicable), consistency of the earth materials, pertinent soil or bedrock <br /> characteristics, and any evidence of contamination were noted All water-bearing zones <br />' and the depths at which they were encountered were noted on these logs <br /> All borings were drilled in such a manner as to prevent cross contamination between <br /> strata Hydropunch samples were taken at the soil/groundwater interface, and the <br /> borings were then terminated with a cement and three percent (3%) Bentonite mixture <br />' Soil Sampling <br /> All soil sampling equipment was thoroughly steam cleaned before and between <br /> sampling to prevent cross contamination Relatively undisturbed soil samples were <br /> taken at intervals of not more than five feet (5') in order to evaluate the subsurface <br />' materials <br /> The soil samples were taken using a California Modified Split Spoon sampler with <br /> brass liners The sampler was driven continuously by a wire line hammer <br /> The laboratory samples did not have head space and were immediately sealed in their <br /> liners using aluminum foil lined plastic caps The remaining sample was removed from <br /> its liner to be used as an aide to the on-site geologist in logging the material at that <br /> I depth <br /> Soil samples collected for analysis were analyzed using EPA method 3550/LUFT for <br /> total extractable petroleum hydrocarbons and EPA method 8020 for BTX&E <br /> compounds Analyses were conducted by GeoAnalytical Laboratories, Inc , a State <br /> 1� certified laboratory in Modesto <br /> 1 <br /> i <br />