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G� <br /> COLUMBIA ANALYTICAL SERVICES, INC. <br /> ti <br />` Analytical Report <br /> f ! Client: EMCON Associates Date Recemed: 03/12/93 <br /> Pralect.- EMCON Project No. OG71-038 01 Service Request No.. SJ93-0368 <br /> ARCO Facility No 2168 Sample Matnx Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 503018020/California DHS LUFT Method <br /> ug/L {ppb} <br /> Sample Name MW-4 MW-5 (55) Method Blank <br /> Date Analyzed 03122/930 03/19/93 03/19/93 <br /> A—nalyte MRL <br /> . Benzene 05 14,000 9,200 ND <br /> Toluene 05 24,000 6,600 ND <br /> Ethylbenzene 05 3,200 830 ND <br /> Total Xylenes 05 15,000 4,200 ND <br /> TPH as Gasoline 50 110,000 49,000 ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Lima <br /> ND None Detected at or above the method reporting limit <br /> This sample was part of the analytical batch started on March 22, 1993 However, it was <br /> analyzed after midnight so the actual date analyzed is March 23, 1993 <br /> Approved by Date '`aro 1r <br />