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� n <br /> -s€ <br /> i <br /> w <br /> PHASE I HYDROOEOLOGIC [NVFSMATION <br /> �a 4491 Weai Durham Fray Road,Tracy,California <br /> Delta Project No.43-91-732 <br /> Page 6 <br /> i1 <br /> TABLE 2 <br /> Results of PID Field Screening <br /> e d cation Doth(feet) :1D readings(spj� <br /> y <br /> MW-2-5 5 120 <br /> MW-2-10 10 94 <br /> MW-2-15 15 110 <br /> kW-2-20 20 20 <br /> 'AW 3-S 5 3 <br /> i <br /> Mw-3-10 10 i <br /> MW-3-15 15 0 <br /> i <br /> MW-3-20 20 0 <br /> A <br /> The soil samples submitted for chemical analysis were collected from a depth of 5 feet from monitoring well <br /> M♦V-2 and 10 feet from monitoring well MW-3. The soil samples were analyzed for total petroleum <br /> t� hydiwarbons as gasoline and diesel and BTEX using EPA Method 8260. <br /> t Tim chemical results of file soil samples are presented in Table 3. Laboratory data sheet are presented in <br /> AppeLdix D. Chemical analyses of the soil sample collected from monitoring well MW-2 at a depth of <br /> 10 feet, indicated the presence of benzene, toluene, and xylenes at concentrations of 0.013, 0.018 and <br /> t <br /> ..9 0.02 ppm, respectively. Chemical results of the still sample collected from monitoring well MW-3 at a <br /> depth of 5 feet below the ground surface indicated she chemicals analyzed were below the laboratory's 11a1i! <br /> ! of detection. <br /> On September 4, 1991,each monitoring well was purged by removing t4lrec well casing volumes of hater <br /> from each well. Ground waevr samples were then collected from each moaltoring well and wen sent to the <br /> laboratory for analysis of TPH as gasoline and diesel and BTEX usla$ UA Method 8260, Ms. Eleanor <br /> t <br /> —: -:-' --Ratliff from the County Was on site to observe the sampling protocols during <br /> PH10111.BP <br /> ,;, r• <br />