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Saw <br /> &&urWe Wswf%ation Report <br /> Cu tha Group Property.Tracy,CA <br /> Project No.W0661 <br /> January 15,IM <br /> grade. 1 �= �' ' � � µ or drill <br /> .. . <br /> Lcuttings. Groundwater was first encountered in boring SB-11 at 10.7 feet below grade in <br /> elastic silt. Appendix A contains the soil boring logs. <br /> L <br /> 4,2 Groundwater Sampling <br /> LGroundwater samples were collected from boring SB-11 on December 14, 1992, using a <br /> disposable bailer. <br /> 5.0 LABORATORY METHODS <br /> 1, collected from borings SB-1, SB-11, and SB-19 were submitted, under <br /> chain of custody record to State-certified RESNA Environmental Laboratory (Fremont, CA) <br /> for analysis. These samples were selected based upon varying soil types and their locations <br /> along the property line (see Figure 3 and Appendix A). Analytical methods included total <br /> petroleum hydrocarbons as oil and grease (TPHOG) and the constituents benzene, toluene, <br /> ethylbenzene, and xylenes (BTEX) utilizing Standard Method (SM) 5520 E/F and EPA <br /> method 8020, respectively. ` ' s <br /> analyses. <br /> 6.0 RESULTS OF LABORATORY ANALYSES <br /> Y _.,.. . <br /> f TPHOG or BTEXwera present in <br /> the soil samples collected from borings SB-1 at 5.5 feet below grade, SB-11 at 5.5 and 10.5 <br /> feet below grade, and SB-19 at 5.5 feet below grade. Results of the soil laboratory analyses <br /> are summarized in Table 1. <br /> RMRIVR121M.R& 4 <br /> L <br />