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' Sequoia Morgan 8Hi ll Jarvis Drive <br /> C 95037 <br /> (404El8)776-9600 <br /> 82 <br /> 308 <br /> Analytical FAXequo lab6or <br />' www sequolalaHs corn <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 Morse 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 5J19027-EPA 5030B PIT <br />' Matrix Spike Dup(5J19027-MSD1) Source MOJ0953-05 Prepared&Analyzed 10/19/05 <br /> 1,2,3-Tnchlorobenzene 546 25 500 ND 109 70-135 05 20 <br />' 1,2,4-Tnehlorobenzene 530 25 500 ND 106 70-130 04 20 <br /> 1,1,1-Tnchloroethane 578 25 500 ND 116 85-135 7 15 <br /> 1,1,2 Tnehloroethane 600 25 500 ND 120 85-120 4 15 <br />' Trichloroethene 516 25 500 ND 103 60-140 5 20 <br /> Tnchlorofluoromethane 564 25 500 ND 113 85-130 8 15 <br /> 1,2,3-Tnchloropropane 591 25 500 ND 118 65-125 2 15 <br />' 1,2,4 Tnmethylbenzene 1010 25 500 480 106 85-120 3 10 <br /> 1,3,5 Trimethylbenzene 600 25 500 91 102 75-130 4 15 <br /> hlonde 462 25 500 ND 92 55-145 5 20 <br /> Xy enes(total) 2850 25 1500 1200 110 85-125 4 20 <br /> Surrogate Dibromofluoromethane 235 150 94 65-130 <br /> Surrogate 1 2-Dichloroethane-d4 255 250 102 60-135 <br /> Surrogate 1 2-Dichloroethane-d4 255 250 102 60-135 <br /> Surrogate Toluene-d8 237 250 95 70-120 <br /> Surrogate 4-Sromofluorobenzene 252 150 101 70-120 <br /> Batch 5J20005-EPA 5030B PIT <br /> Blank(5J20005-BLK1) Prepared&Analyzed 10/20/05 <br />' tert-Amyl methyl ether ND 025 ug/1 <br /> tert-Butyl alcohol ND 10 <br /> D,-Isopropyl ether ND 025 <br />' 1,2-Dibromoethane(EDS) ND 025 " <br /> 1 2-Dtchloroethane ND 025 " <br />' Ethanol ND 50 <br /> Ethyl cert-butyl ether ND 025 <br /> Methyl tert-butyl ether ND 025 <br /> Surrogate 1 1-Dichloroethane-d4 140 250 96 60-135 <br /> le <br /> aoia 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 />' Page 59 of 80 <br />