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21:21 DEL-TECH GEOTECHNICAL 209 847 7744 P.14 <br /> / 3'lIBS <br /> 1 <br /> QUALITY CONTROL REPORT DHS Certification #1400 <br /> Volatile Analyses <br /> Client: QEL TECH Date Received; OW3MS <br /> 10824 Olive Ave Date Started: x5/30/95 <br /> Oakdale CA 95M We Complete: asmjU5 <br /> ATTN, DON LIGHT <br /> Lab Report 0; N5053001 Lab Semple#s PH5032733-2735 <br /> Linearity Check: ' <br /> STIX Benzene 0.1*92 TPH -Gasoline p,QO¢7 <br /> Toluene 0.0m TPH Diesel N/A <br /> Ethyl Benzene 0.9906 Motor Oil N/A <br /> Xylenes O.M5 TRPH (418.1) N/A <br /> StR FiepestebilN, Benzene Toluene. llh Benz ]txlenes <br /> BTI _ IDS 101 102 102 <br /> TPH Gasoline TPH Diesel N/A <br /> TRPH (418.1) N/A TPH Mator Oil NIA <br /> f Matrix Spike Recoveries MS MSD RPD <br /> 13TEX Benzene Inaignifiyent with respect to sample concentration ERR <br /> Toluene `ERR <br /> Ethyl Benzene ERR <br /> xylenes ERR <br /> 4- <br /> TPH Geedline 113.0 . 17$.0 4.3 <br /> TPH Diesel N/A NIA ERR <br /> TRPH (418.1) N/A <br /> Method Bis Benzene Toluene Ob Benz Xylenes <br /> STEX <.3 ugfL <_3 u0/L <.3 ug!L <.3 uWL <br /> TPH Gasoline C5 uall- TPN Diesetimo N/A - TRPH(418-7) N/A <br /> Lab Control Sample% Recovery EPA Performance Acceptance Range <br /> ErTEX Benzene _ 106 37.0 - 151.0 <br /> Toluene 08 47.0 - 150,0 <br /> EUTO Benzene 04 36.9 - 182.0 <br /> Xylenes 91 4Z7 - 137.9 <br /> TPH Gasoline 08 35.0 - 130.1 <br /> TPH Diesel NIA 45.1 - 135,2 <br /> TRPH (418.1) _ NIA NIA <br /> Gtorte Poling. Lair Director <br />