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I <br /> COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br />� Client EMCON Associates Date Received- 01/29/93 <br /> Project: EMCON Project No OG71-029 01 Service Request No SJ93-0125 <br /> ARCO Facility No 2130 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LOFT Method <br /> I ug/L (ppb) <br /> Sample Name MW-6 LZ MW-7173) Method Blank <br /> Date Analyzed 02/08/93 02108/93 02/08/93 <br /> Analyte MRL <br /> Benzene 05 ND NO NO <br /> Toluene 05 NO ND NO <br /> Ethylbenzene 05 NO ND ND <br /> Total Xylenes 0 5 ND NO NO <br /> TRH as Gasoline 50 120 67 ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> NO None Detected at or above the method reporting limit <br /> Approved by l Date Ij <br />