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1 <br /> QO'banterra <br />' EnnronmenW <br /> •1 Benzene, Toluene, Ethyl Benzene and Xylenes (BTEX) semces <br />' Method 8020 <br /> Client Name* ERM - West, inc. <br /> Client ID: UST1 <br />' Lab ID: 094903-0012-SA . <br /> Matrix: AQUEOUS Sampled: 03 SEP 97 Received: 04 SEP 97 <br /> Authorized: 04 SEP 97 Prepared: NA Analyzed. 08 SEP 97 <br />' Repporting <br /> Parameter Result Units Limit <br /> Benzene 650 ug/L 250 0 <br /> Toluene 8600 ug/L 250 <br /> Ethylbenzene 4100 u L 250 <br /> Xylenes (total ) 14000 ug/L 500 <br />' Surrogate Recovery <br /> a,a,a-Trifluorotoluene 302 % <br /> 1 <br /> Note o Reporting limit{s) raised due to high level of analyte <br /> present in samp e. <br /> ND = Not detected <br /> NA = Not applicable <br /> IReported By: Min Qin Approved By: Marian Loui <br /> The cover letter is an integral part of this report. <br /> Rev 230787 <br />