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CAMBRIA <br /> INVESTIGATION RESULTS <br /> Personnel Present Cambria geologist Geno Mammini directed the field activities, <br /> working under the supervision of California Registered <br /> Geologist Joe Neely <br /> Permits• Cambria obtained permits Nos 34463 through 34465 from <br /> SJCEHD and encroachment permit No 1003-6SV-0035 from <br /> Caltrans (Appendix A) <br /> Drilling Company• Gregg Drilling and Testing, Inc (Gregg) of Martinez, California <br /> (C57 License No 485165) <br /> Drilling Dates: July 9 through 16, 2003 <br /> Drilling Method- Eight-and ten-inch hollow-stem augers <br /> i ' <br /> Soil Sampling Methods• Borings were logged using the Unified Soil Classification <br /> System and Munsell Soil Color Charts Soil samples were <br /> collected continuously from well boring MW-10 and at five-foot <br /> intervals from the other well borings for soil description, <br /> potential chemical analyses, and headspace analysis Soil <br /> samples were screened for the presence of organic vapors using <br /> a photo-ionization detector (PID) The PID readings are <br /> recorded on the boring Iogs(Appendix B) <br /> Number of Borings: Four borings (MW-8 through MW-11) were converted into <br /> groundwater monitoring wells Boring and well specifications <br /> are described in Table i and their locations are shown on <br /> Figure 2 Proposed wells MW-12 and MW-13 were not <br /> installed due to access issues The CVRWQCB has offered <br /> assistance in obtaining access to the Teresi Trucking property <br /> Boring Depths Borings MW-8 and MW-10 were drilled to 60 feet below grade <br /> (fbg) and borings MW-9 and MW-11 were drilled to <br /> 63 and 100 fbg, respectively <br /> 0955 5 <br />