Laserfiche WebLink
y <br /> K <br /> .._....... ,..waw r} <br /> i <br /> i <br /> 3 . <br /> �£� alC �l;AT10N <br /> Company,t3.S.A, <br /> Rouil Stora 7.3708 <br /> 2703 Country Club Boulevard <br /> Stockton,Caufomsa <br /> Delta Project No.44-91.838 <br /> Page 6 <br /> 4 Granrtd Waw Arta vtkai Results <br /> Ground water samples were collected from each of the three monitoring wells on August 23, 1991. Each <br /> sample was submitted for analysis of BTEX and TPH as gasoline by EPA Methods 8015 and 8020. In <br /> addition,a,ground waver sample from monitoring well MW-2 was submitted for analysis of total rec ovemble <br /> petroleum hyJrocarbons(TRPH)by EPA Method 418.1. Analytical results are sniamarized in Table 4,and <br /> copses of the certified laboratory reports are included in Appendix E- The inferred d'3iribution of dissolved <br /> benzene L,ground water beneath the site is illustrated in Figure 6. l;« <br /> TABLE 4 <br /> Gttund water SampkAnalydeal Reid <br /> August 23,1991 <br /> i Concentrations in Parts per Billion <br /> Monitoring TPHa <br /> Toluene Etthvibenzene Xyl jEjsj&jjn TRPHa« <br /> x <br /> Mw-1 <0.5 <os <oS <0-9 <50 Nk <br /> } <br /> } <br /> MW-2 <0.5 <0.5 ' 4.9: " <0.5 �$2 <LC00 <br /> MW-3 240 .4 <Z5 3S . '" NA" <br /> m a'retat petroleum hydroearbon& <br /> ilT'otat recoverable petroleum hydroL*rborts. <br /> 'Not analyzed. <br /> ��SCbJruSlt)N <br /> Petroleum hydrocarbon constituents were not ictected in the soil samples submitted fo:chemical analysis. <br /> Aralytit.al results indicate that petroleum hydrocarbon constituents wenn prt:sent in ground water samplas <br /> collected from monitoring Neils MW-2 and MW-3. Concentrations of TPH as gasoline in the ground water <br /> samples collected from monitoring wells MW-2 and MW-3 were 82 ppb and 630 ppb,respecifycly. Benzene ; <br /> was only dr:cr=cd in the ground water sample collected from monitoring well MW-3,at n concentration of <br /> 240 ppb. <br /> ItrI 2BF <br /> .. <br />