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drilled two borings The first boring (CPT-11) was located near boring B-1I (see Figure 3 for <br /> location) The second boring (CPT-12) was completed behind the main building, in the area of <br /> former motor oil UST's (location shown in Figure 3) <br /> Samples were collected at vaned depths at both locations The samples were split so that selected soil <br />' samples could be submitted for chemical and geotechmcal analysis The soil samples for chemical <br /> analysis were subnutted under chain ofcustody documentation to Mc Campbell Analytical Laboratory <br /> for analysis of TPH-Diesel (EPA Method 8015M), TPH-Gasoline, BTEX, and Volatile Organic <br />' Carbons (EPA Method 8260) <br /> The results of chemical analyses are summarized in Tables 8 and 14 Hydrocarbon contamination was <br /> reported in the samples from CPT-I 1 All of the samples from CPT-12 were "non detect" for the <br /> Parameters tested <br /> 2,4 Cone Penetrometry Analysis (CPT-11 and CPT-12) <br /> Cone penetrometry provides a method for obtaining specific data on soil depth, properties, and <br /> stratigraphy The cone contains electrical transducers that measure cone resistance, friction against <br /> the tip, and, in the case of piezocone tests, pore water pressure around the cone In addition, by <br /> stopping the cone periodically such soil properties as dissipation and drainage can be estimated <br /> The Gregg In Situ report of CPT results are presented in Appendix C In addition, information is <br /> included on the use of CPT data to estimate the hydraulic conductivity from pore pressure dissipation <br /> results Table 9 summarizes the calculation of hydraulic conductivity for pore pressure dissipation <br /> tests completed at various depths for both CPT-i 1 and CPT-12 <br /> 2.5 Geotechnical Sample Analysis <br /> Selected samples collected using the Cone Penetrometry sampler were submitted to Cooper Testing <br /> Lab for analysis of the following geotechnical parameters, porosity, bulk density, moisture content, <br /> and organic carbon content <br /> The results are summarized in Table 10 The data sheets from Cooper Testing Laboratory are <br /> presented in Appendix D <br /> Remedy, Inc, Interim Investigation and Remediation Report September 16, 1998 <br /> Frank's One Stop 2072 W Yosemite Avenue lfanteca, CA 0151IR RPT <br /> 5 <br />