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COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> Ont EMCON Service Request 5950622 <br /> Protect ARCO Facility No 548/EMCON Project No 1775-206 001 Date Analyzed, 5/12/95 <br /> Initial Calibration Verification(ICV) Summary <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> Units ppb <br /> CAS <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Anal%to Value Result Recovery Limits <br /> Benzene 25 273 109 85-115 <br /> Toluene 25 26 9 108 85-115 <br /> Eth}lbenzenc 25 275 110 85-115 <br /> Xylenes Total 75 82 8 110 85-115 <br /> Gasoline 250 249 100 90-110 <br /> • <br /> 0 <br /> Approved By Date 1;�r'111 <br /> IC V75AU060194 �y <br /> 950622?CLS wg6UccaC 5/26795 page No 6 <br /> 1921 Ringwood Avenue • Son Jose California 95131 Telephone 408/407 2400 9 fox 408/437 9356 L] <br />