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COLUMBIA ANALYTICAL SERVICES, INC. <br /> Analytical Report - <br /> Client: EMCON Associates Date Received: 03/05/93 <br />• Project: EMCON Project No. OG71-033.01 Service Request No.: SJ93-0322 <br /> ARCO Facility No. 548 Sample Matriu: Water <br />• <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/Califomia DNS LUFT Method <br /> ug/L (ppb) <br />• <br /> Sample Name: MAI 1611 MW-3 ffi2l MW-4 (631 <br /> Date Analyzed: 03/10/939 03/10/93 • 03/10/93 • <br />• <br /> Analyte MRL <br /> Benzene 0.5 c0.6 "` ND NO <br /> Toluene 0.5 ND ND ND <br /> Ethylbenzene 0.5 ND ND ND <br /> Total Xylenes 0.5 ND 0.7 ND <br /> TPH as Gasoline 50 57. ""• <140. "••' ND <br />• <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 10, 1993. However;it was <br /> analyzed after midnight so the actual date analyzed is March 11, 1993. <br /> •• Raised MRL due to matrix interference. <br /> `•• The sample contains a lower boiling point hydrocarbon mixture quantitated as gasoline. The <br /> chromatogram does not match the typical gasoline fingerprint. <br /> •"• Raised MRL due to matrix interference. The sample contains a high concentration of a non- <br /> fuel hydrocarbon. <br />• <br /> �i <br /> Approved by: Date: <br />• <br /> 2 <br /> - r/ln• A-_.. __J • - �..- C... ....� /_. (___._ r1! •�• T_ „4 ___ •I1 fIIrn� n ....... ,Y .. -+ ..ww• <br />