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COLUMBIA ANALYTICAL SERVICES. INC <br /> Analytical Report <br /> . Client EMCON Associates Date Received 02/24/93 <br /> Project EMCON Project No OG71-017 01 Service Request No.: SJ93-0261 <br /> ARCO Facility No 434 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> ug/L (ppb) <br /> Sample Name W-s (691 W-9 (78) W•11 (79) <br /> Date Analyzed 03/05/93 " 03/05/93 • 03105/9311 <br /> Analyte MRL <br /> Benzene 0 5 ND ND ND <br /> Toluene 05 ND ND ND <br /> Ethylbenzene 05 NO ND ND <br /> Total Xylenes 05 ND ND ND <br /> TPH as Gasoline 50 NO ND ND <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 March 5, 1993 However, it was <br /> analyzed after midnight so the actual date analyzed is March 6, 1993 <br /> Approved by4�&b Date t 2y1 an <br /> 4 <br /> 1921 Ringwood Avenue • Son lose California 95131 • Telephone 4081437 2400 • Fox 4081437-9356 <br />