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8 !CA Dave <br /> Hi <br /> Sequoia Morgan Hill95 CA 95037 <br /> �& (408)776-9600 <br /> Analytical FAX(408)782 6308 <br />' www sequoialabs com <br />' ETIC Engineenng Inc-Pleasant Hill(Exxon) Project Exxon 7-3942 MDJ0913 <br /> 2285 Morello Avenue Project Number Exxon 7-3942 Reported <br /> Pleasant Hill CA,94523 Project Manager Ted Motse 11/09/05 15 08 <br />' Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> Sequoia Analytical - Morgan Hill <br /> Evaluation Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Lunits RPD Limit Notes <br /> Batch 5J19027-EPA 5030B PIT <br />' Matrix Spike(5319027-MSI.) Source MOJ0953-05 Prepared&Analyzed 10/19/05 <br /> Bromomethane 648 50 500 ND 130 40-150 <br />' tert-Butyl alcohol 2840 1000 " 2500 ND 114 75-120 <br /> sec-Butylbenzene 546 25 500 ND 109 80-130 <br /> tert-Butylbenzene 553 25 500 ND 111 80-125 <br />' n-Butylbenzene 570 25 500 20 110 80-130 <br /> Carbon tetrachloride 592 25 500 ND 118 75-140 <br /> Chi orobenzene 562 25 500 ND 112 80-120 <br /> IChloroethane 520 50 500 ND 104 75-120 <br /> Chloroform 670 25 500 ND 134 80-125 QCO1 <br /> O0ethanem518 25 500 ND 104 50-135 <br /> rotoluene 542 25 500 22 114 80-120 <br /> 4-Chlorotoluene 628 25 500 9 0 124 75-125 <br /> Di isopropyl ether 586 25 " 500 ND 117 75-125 <br /> 1,2-Dibromo-3-chloropropane 604 50 SOD ND 121 65-140 <br /> Dibrorn chloromethane 548 25 500 ND 110 70-125 <br /> 1,2 Dibromoethane(EDB) 594 25 500 ND 119 85-120 <br /> 1,2-Dibromoethane(EDB) 594 25 500 ND 119 85-120 <br />' Dibromomethanc 660 25 500 ND 132 70-145 <br /> 1,2-Dichlorobenzene 591 25 500 ND 118 80-125 <br /> 1,3-Dichlorobenzene 546 25 500 ND 109 75-120 <br />' 1,4 Dichlorobenzene 594 25 „ 500 ND 119 75-120 <br /> Dichlorodifluoromethane 416 25 500 ND 83 60-130 <br /> 1,1-Dtchloroethane 608 25 500 ND 122 55-140 <br /> 1,2-Dichloroethane 658 25 500 14 129 85-130 <br /> 1,2-Dichloroethane 658 25 500 14 129 85-130 <br /> i1,1-Dichloroethene 586 25 500 ND 117 75-135 <br /> cis 1,2-Dichloroethene 638 25 " 500 ND 128 85-130 <br /> trans-l,2-Dichloroethene 577 25 500 ND 115 70-130 <br /> 1 2-Dichloropropane 577 25 500 ND 115 85-115 <br /> �oia 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 This <br /> analytical report must be reproduced in its entirety <br /> IPage 55 of 80 <br />