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i - <br /> 07/30/96 <br /> l <br /> QUALITY CONTROL REPORT DHS Certification #1400 <br /> Volatile Analyses <br /> i <br /> Client: Foothill Engineering Date Recei ed: 07/25/96 <br /> 12793 Paddy Creek Lane Date Started: 07/26/96 <br /> Lod 1, CA 95240 Date Complete: 07/29/96 <br /> ATTN: Ery Rifenburg <br /> Lab Report#: H6072512 Lab Sample #e PH6072296-2302 <br /> Linearity Check: <br /> STEX Benzene 0.9989 TP,H Gasoline 1.0000 <br /> Toluene 0.9993 TPH Diesel N/A <br /> Ethyl Benzene 0.9996 Motor Oil N/A <br /> Xylenes 0.9999 , TRPH (418.1) N/A <br /> i <br /> Std % Repeatability Benzene Toluene Eth Benz Xylenes <br /> BTEX 91 92 104 ; 91 <br /> TPH Gasoline 103 TPH Diesel N/A <br /> TRPH (418.1) N/A TPH Motor;011 NIA <br /> I Mat Spike Recoveries MS MSD�'j RPD <br /> BTEX Benzene 93.0 95.0 Ji 2.1 <br /> Toluene 94.0 98.0. 4.2 <br /> Ethyl Benzene _94.0 95.01111 1.1 <br /> ;xylenes 89.0 88.0.11 1.1 <br /> TPH Gasoline 981 99.0 ; 1.0 <br /> TPH Diesel N/A N/A ERR . <br /> TRPH (418.1) <br /> Method Blank Benzene Toluene Eth Benz Xylenes <br /> BTEX <3 ug/Kg <3 ug/Kg <3 ug/Kg <3 ug/Kg <br /> TPH Gasoline <1 ni TPH Diesel/MO N/A j TRPH(418.1) N/A <br /> Lab Control Sample% Recovery EPA Perfolrmance Acceptance Range ` <br /> I I <br /> BTEX Benzene 95 37.0 151.0 <br /> � i <br /> Toluene 97 47.0 - 150.0 <br /> - Ethyl Benzene 95 36.9 162.0 <br /> Xylenes 102 42.7 - 137.9 <br /> TPH Gasoline 107 35.0 - 130.1 <br /> TPH Diesel N/A 45.1 - 135.2 <br /> 1 TRPH (418.1) N/A N/A <br /> GI ria Poling, Lab Director <br />