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GEOMATRIX <br /> TABLE 1 <br /> BORING LOCATION RATIONALE <br /> TAOC Tracy Gravel Pits <br /> Tracy, California <br /> Anticipated <br /> Boring Boring Location Sample Depth' <br /> Name Rationale (ft bgs) Proposed Analyses <br /> 0.5- 1 TPHd,TPHmo,PAHs <br /> GMX-34 Located near property boundary for lateral extent of 4.5-5 TPHd,TPHmo,PAHs <br /> petroleum hydrocarbons in soil near offsite home. <br /> 9.5- 10 TPHd,TPHmo,PAHs <br /> 0.5- 1 TPHd,TPHmo,PAHs <br /> Located to provide spactial coverage in the southwestern <br /> GMX-35 section of the site. 4.5-5 TPHd,TPHmo,PAHs <br /> 9.5- 10 JTPHd,TPHmo,PAHs <br /> Notes: <br /> 1. Sample depths may be modified if petroleum affected soil is encountered;a sample of the most visually affected soil <br /> above 10 feet will be collected. <br /> 2. Anticipated sample depth. Soil sample will be collected beneath visually affected soil to define the vertical extent. <br /> Abbreviations: <br /> TPHd=total petroleum hydrocarbons as diesel; <br /> TPHmo=total petroleum hydrocarbons as motor oil <br /> PAHs=polynuclear aromatic hydrocarbons <br /> VOCs=volatile organic compounds <br /> GW=Groundwater sample <br /> 1ADoc_Safe\7000s\7066\Soi1 Investgn WP\Table 1.x1s Page 2 of 2 <br />