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885 Jarvis Drive <br /> Sequoia Morgan Hill CA 950375037 <br /> (408)772 9300 <br /> Analytical <br /> FAX(408)782 3308 <br />' www sequoialabs com <br />' ETIC Engineering Inc-Pleasant Hill(Exxon) Project Exxon 7-3942 MOJ0913 <br /> 2285 Morello Avenue Project Number Exxon 7-3942 Reported <br /> Pleasant Hill CA,94523 Project Manager Ted Moise 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 Limits RPD Limit Notes <br /> Batch 5J20016-EPA 5030E PIT <br />' Matrix Spike Dup(5J20016-MSD1) Source MOJ0417-11 Prepared 10/20/05 Analyzed 10/21/05 <br /> 2-Chlorotoluene 11 8 050 100 ND 118 80-120 5 15 <br />' 4-Chlorotoluene 114 050 100 ND 114 75-125 2 10 <br /> Di-isopropyl ether 144 050 100 ND 144 75-125 3 15 QC01 <br /> 1,2-Dibromo-3-chloropropane 116 10 ^ 100 ND 116 65-140 0 20 <br />' Dibromochloromethane 113 050 " 100 ND 113 70-125 2 15 <br /> 1,2-Dibromoethane(EDB) 114 050 100 ND 114 85-120 2 15 <br /> 1,2-Dibromoethane(EDB) 114 050 100 ND 114 85-120 2 15 <br /> Dibromomethane 129 050 100 ND 129 70-145 0 15 <br /> 1,2-Dichlorobenzene 124 050 100 ND 124 80-125 2 10 <br /> 0chlorobenzene Il 6 050 100 ND 116 75-120 4 10 <br /> ichlorobenzene 127 050 100 ND 127 75-120 4 15 QC01 <br /> Dichlorodifluoromethane 735 050 100 ND 74 60-130 3 20 <br /> 1,1 Dichloroethane 119 050 " 100 ND 119 55-140 3 20 <br /> 1,2-Dichloroethane 123 0 50 100 ND 123 85-130 08 20 <br /> 1,2-Dichloroethane 123 050 100 ND 123 85-130 08 20 <br /> I,I-Dichloroethene 116 050 100 040 112 75-135 4 20 <br /> cis 1,2 Dichloroethene 131 050 100 1 2 119 85 130 3 10 <br /> trans-l,2-Dichloroethene 116 050 100 ND 116 70-130 2 15 <br /> 1,2-Dichloropropane 127 0 50 " 100 ND 127 85-115 4 10 QM01 <br /> 1,3-D3chloropropane 117 0 50 100 ND 117 85-115 09 10 QC01 <br /> 2,2 Dichloropropane 157 20 100 ND 96 50-150 5 35 <br /> 1,1-Dichloropropene 116 050 100 ND 116 85-125 4 15 <br /> Ethanol 250 100 200 ND 125 70-135 9 35 <br /> Ethyl tert-butyl ether 982 050 100 ND 98 75-130 03 25 <br /> Ethylbenzene 1 1 4 0 50 100 ND 114 75-135 3 15 <br /> Hexachlorobutadiene 121 20 100 ND 121 75-120 3 20 QC01 <br /> Isopropylbenzene 107 050 100 ND 107 80-135 3 10 <br /> Methyl tert-butyl ether 957 050 100 ND 96 65-125 2 20 <br /> Methylene chloride 112 050 100 ND 112 75-135 09 15 <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 74 of 80 <br />