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GTEL Client ID 020104235 QUALITY CONTROL RESULTS <br /> Login Number C4070157 Volatile Organics <br /> Project ID (number) 020104235 Method EPA 8020 <br /> Project__ID (name) CHEMN 49-5025/Stockton CA Matrix _ Aqueous <br /> Matrix Spike and Matrix Spike Duplicate Results <br /> Matrix Matrix Hatrix Spike matrix Spike <br /> Original spike Spike spike Duplicate Duplicate Aeceptablllty Limits <br /> Malyte Concentration Axkmt Concentration Recovery _I Cancent_ratim Recovery I RPD I RPD S Reewery 3 <br /> EPA 8020 GTEL Sample ID 04070062.20 Spike ID G071394 3 Dup ID G071394.4 <br /> Emits uglL Analysis Date 09 JUL-9413-JUL-94 13-JUL-94 14 JUL-94_ Client ID Batch QC _ <br /> Ber�z�ne ,<' . M 0.50 ry<k" Z0_i3 ,�, 17.3 _ 26 5 - `i7.5,.N 86.0 1. 34 n 4;57 3.138X <br /> Toluene < 0 50 20 0 16 7 83 5 16 6 83 0 0 6i 31 63-134X <br /> Etbylbenzene �' < c -6-50 —.' 20`.0 w1C2 8i-0 16A- N $2.0 1"Z ^38 J.3 I37. <br /> XZlenes (Total) < 0 50 60 0 46 5 77 5 45 7 76 2 1 6 31 59 3-144: <br /> Hers <br /> GTEL Concord CA MGTEL <br /> C4070I57 Z FHvICC•1OMYFMTAI <br /> lAta0af5 IMe <br />