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07118/96 <br /> QUALITY CONTROL REPORT DHS Certification #1400 <br /> Volatile Analyses <br /> Client: Foothill Engineering Date Received: 05129/96 <br /> 4, 12793 Paddy Creek Lane Date Started: : 05129/96 <br /> Lodi, CA 95240 Date Complete: 05/31/96 <br /> ATTN. Ervin Rifenburg <br /> Lab Report#: H6052906 Lab Sample #a PH6052158-2167 <br /> Lineari Check: <br /> BTEX Benzene 0.8998 TPH Gasoline 0.9998 <br /> Toluene Q9998 TPH Diesel N/A <br /> Ethyl Benzene Q8988 Motor Oil N/A <br /> Xylenes M9998 TRPH (418.1) N/A <br /> MTBE N/A <br /> Std % Repeatability MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX N/A 110 107 106 109 <br /> TPH Gasoline 97 TPH Diesel N/A <br /> TRPH (418.1) NIA TPH Motor Oil N/A <br /> Matrix Spike Recoveries MS MSD RPD <br /> MTBE N/A N/A ERR <br /> BTEC Benzene 109.0 111.0 1.8 <br /> Toluene 105.0 105.0 0.0 <br /> Ethyl Benzene 101.0 107.0 5.8 <br /> Xylenes 107.0 108.0 Q$ <br /> TPH Gasoline 104.0 10 o 1.0 <br /> TPH Diesel N/A N/A <br /> TRPH 418.1 NIA <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX NIA C3 ug/Kg_ c3 ug/Kg a3 ug/Kq c3 ug/Kg <br /> TPH Gasoline _<1 mg/Kg TPH Diesel/MO N/A TRPH(418.1) N/A <br /> Lab Control Sample% Recovery EPA Performance Acceptance Range <br /> BTEX Benzene 110 37.0 - 151.0 <br /> Toluene 115 47.0 - 150.0 <br /> Ethyl Benz 119 36.9 - 162.0 <br /> Xylenes 120 42.7 - 137.9 <br /> x TPH Gasoline 95 35.0 - 130.1 <br /> TPH Diesel N/A 45.1 - 135.2 <br /> TRPH (418.1) N/A NIA <br /> GI is Poling, Lab; <br /> ab Dire' or , <br /> 7//q/ <br />