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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 5030j8020/California OHS LUFT Method <br /> ug/L (ppb) <br /> Sample Name MW;6(71 MW-7 f 731 Method Blank <br /> Date Analyzed 02108/93 02108/93 02/08/93 <br /> Anal MRL <br /> Benzene 0 5 NO NO NO <br /> Toluene 0 5 NO NO ND <br /> Ethylbenzene 0 5 ND NO NO <br /> Total Xylenes 0 5 ND NO NO <br /> TPH as Gasoline 50 120 67 NO <br /> TPH Total Petroleum Hydrocarbons <br /> MAL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> Approved by t Date- <br /> Ll <br /> _� <br />