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COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br /> Client EMCON Associates Date Received 05/28/93 <br /> Project EMCON Project No OG71-017 01 Service Request No SJ93-0719 <br /> ARCO Facility No 434 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 503018020/California DHS LUFT Method <br /> pg/L (ppb) <br /> Sample Name W-5 1691 W-6 (69) W-7 169) <br /> Date Analyzed 06/01193 06/01/93 06/01/93 <br /> Analyte MRL <br /> . Benzene 0 5 ND ND ND <br /> Toluene 05 NO ND ND <br /> Ethylbenzene 05 NO ND ND <br /> Total Xylenes 05 ND ND NO <br /> TPH as Gasoline 50 ND ND ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> Approved by Date J �- <br /> 3 <br /> 1921 Ringwood Avenue a Son Jose California 95131 • Telephone 408/437 2400 • Fax 408/437 9358 <br />