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r <br /> INVESTIGA710N <br /> 4491 Weat Durham Forty Road,Tracy,Glifornia <br /> Ddu Project Na,*0.91-732 <br /> i�... Pate 6 <br /> T r <br /> t TABLE 2 <br /> i. <br /> Results of,PID Feld Screening <br /> s . <br /> Sample Identification Depth(feed PID reading lnrnnl <br /> MW-2-5 .5 120 <br /> ' MW-2-10 10 94 :. <br /> w MW-2-15 IS 110 <br /> i — MW-2-20 20 <br /> � 20 ' <br /> . i r <br /> ! MW-3-5 5 3 j <br /> MW-3-10 10. 1 ! <br /> MW-3-15 15 0 <br /> ( MW-3-20 20 0 <br /> � s <br /> The soil samples submitted for chemical analysis were collected from a depth of 5 feet from monitoring well <br /> i MW-2 and 10 feet from monitoring well MW-3. The soil samples were analyzed for total petroleum <br /> hydrocarbons as gasoline and diesel and 13TEX using EPA Method-8260. " <br /> yThe chemical results of the soil samples are presented in Table 3. Laboratory dam sheets are presented in <br /> ; <br /> i Appendix D. Chemical analyses cf tllz soil sample collected Ecom monitoring well MW-2 at a depth of <br /> 4 r 10 feet, indicated the presence_ of benzene, toluene, and xylenes at concentrations of 0.013, 0,018 and <br /> 0.02 ppm, respectively. Chemical results of the soil sample collected from'monitoring well MW-3 at a <br /> _ depth of 5 feet below the ground surface indicated the chemicals analyzed were below the laboratory's limit <br /> 6 <br /> _. of detection. <br /> i <br /> 3.6 Ground Ground Wat�Chemistry <br /> i <br /> j - On September 4, 199I, each tronitoring well was purged by removing three%%M casing volumes of water <br /> from each well. Ground water samples were then collected from each monitoring well and were sent to the <br /> laboratory for analysis of T'PH as gasoline and diesel and BTEX using EPA Method 8260. Ms, Eleanor <br /> Ratliff from the County was on site to observe the sampling protocols during the ground watersampling event. <br /> 3 ✓� <br /> i <br /> MOOLEP <br /> - � 1 <br /> f <br /> F , <br />