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a <br /> 885 Jarvis Dnve <br /> Sequoia Morgan 11111,7795037 <br /> (446) 776 9600 <br /> a—)— <br /> FAX(408) 782 <br /> qW Analytical www <br /> labsro 8 <br /> www�quotala6scom <br /> , • <br /> Secor-Rancho Cordova(ARCO) Project ARCO#595, Stockton,CA MMJ0263 <br /> 3017 Kilgore Rd Suite 100 Project Number 38983 Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 11/06/03 15 47 <br /> _ __._.. - V_olatile_Qrganic Compounds by EPA Method 8260B - Quality Control ry <br /> Sequoia Analytical- Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> Analyte - Result Lunt Units Level Result %REC Lunits RPD Lumt Notes <br /> Batch 3J16005-EPA 5030B PIT <br /> Matrix Spike(3J16005-MSI) Source MMJ0145-03 Prepared 10/16/03 Analyzed 10/17/03 <br /> Ethanol 1700 1000 ug/1 2000 ND 850 31-186 <br /> tent-Butyl alcohol 654 200 500 150 101 0-206 <br /> Methyl tert-butyl ether 290 50 100 230 600 63-137 QM-07 <br /> Di-isopropyl ether 843 50 100 ND 843 76-130 <br /> Ethyl tert-butyl ether 820 50 100 ND 820 61-141 <br /> ter%-Amyl methyl ether 820 50 100 ND 820 56-140 <br /> 1,2-Dtchloroethane 102 50 ' 100 ND 102 77-126 <br /> 1,2-Dibromoethane(EDB) 104 50 100 ND 104 77-132 <br /> Benzene - —— -- -- -- ----- - 89 5-- 5 0- —100-100- ---3 4----86 1 <br /> Toluene 95 3 so 100 1 3 940 78-129 <br /> Ethylbenzene _ 103 50 100 34 996 84-117 <br /> Xylenes(total) 326 50 300 ND 109 83-125 <br /> Surrogate i 2-Dichloroethane-d4 517 500 103 78-119 <br /> Matrix Spike Du (3316005-MSD1) Source MMJ0145-03 Prepared 10/16/03 Analyzed 10/17/03 <br /> Ethanol 1930 1000 ug/l 2000 ND 965 31-166 127 37 <br /> tert-Butyl alcohol 712 200 " 500 150 112 0-206 849 22 <br /> Methyl tert-butyl ether- — --f-=-290---- 5 0 "-=�100�==230--=60 0--63-137=-0 00 13-= =--QM 07- - <br /> Dt isopropyl ether 809 50 " 100 ND 809 76-130 412 9 <br /> Ethyl tert-butyl ether- - -- 800— ---50--.'"----100----ND-80 0—61-141 ---247- --9 - - - - <br /> tert-Amyl methyl ether 808 50 100 ND 80 8 56-140 147 12 <br /> 1,2-Dtchloroethane 103 50 100 ND 103 77-126 0 976 13 <br /> 1,2-Dibromoethane(EDB) 109 50 100 ND 109 77-132 469 9 <br /> Benzene 874 50 100 34 840 78-124 237 12 <br /> Toluene - 92 8 50 100 1 3 91 5 78-129 266 10 <br /> Ethylbeuzene 101 50 100 34 976 84-117 196 10 <br /> Xylenes(total) 321 50 300 ND 107 83-125 155 11 <br /> Surrogate 1 1-Dichloroethane-d4 536 500 107 78-129 <br /> Sequoia Analytical-Morgan Hill The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> 12 of 16 <br />