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COLUMBIA ANALYTICAL SERVICES, INC r; <br /> ti <br /> Analytical Report <br /> Client. EMCON Associates Date Received 01/29/93 <br /> Project EMCON Project No OG71-019 01 Service Request No SJ93-0122 <br /> ARCO Facility No 2133 Sample Matrix Water <br /> 6TEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> /ig/L (ppb) <br /> Sample Name E-10 1221 E-1.1_ X231 E-12_[221 <br /> Date Analyzed 02/08/93 ' 02/10/93 02/08/93 " <br /> Analyte MRL <br /> Benzene 0 5 2,500. 830 1 5 <br /> Toluene 0 5 540. 180 2 5 <br /> Ethyibenzene 0 5 1,100 390. 1 2 <br /> Total Xylenes 0 5 3,100 950. <1 }' <br /> TPH as Gasoline 50 31,000 51,000. 380 <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> ' This sample was part of the analytical batch started on February 8, 1993 However, it was <br /> analyzed after midnight so the actual date analyzed is February 9, 1993 <br /> Raised MRL due to high analyte concentration requiring sample dilution <br /> Approved by Date. ae C4 <br /> 6 <br />