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685 Jarvis Dnve <br /> Sequoia Morgan Hill,CA 95037 <br /> (408)776 4600 <br />' Analytical wFAX 782 6308 <br /> wNv sequoequotaiabs com <br />' ETIC Engtneenng Inc-Pleasant Hill(Exxon) Protect Exxon 7-3942 MOL0952 <br /> 2285 Morello Avenue Project Number Exxon 7-3942 Reported <br /> Pleasant Hill CA,94523 Project Manager Ted Moise 01/16/06 15 09 <br /> Purgeable Hydrocarbons and BTEX by EPA 8015B/8021B - Quality Control <br /> Sequoia Analytical- Morgan Hill <br /> Evaluation Spike Source %REC RPD <br /> Analyte Result Lrnut Units Level Result %REC Lnruts RPD Lrnnt Notes <br /> Batch 5L28035-EPA 5030B IP/TJ <br /> Matrix Spike(SL28035-MSI) Source MOL0952-02 Prepared&Analyzed 12/28/05 <br /> Gasoline Range Organics(C4-Cl2) 173 50 ugA 275 ND 63 55-130 <br /> Gasoline Range Organics(C4-C12) 173 50 ;i 275 ND 63 55-130 <br /> Benzene 3 11 050 4 10 ND 76 75-150 <br />' Benzene 3 11 0 50 410 ND 76 75-150 <br /> Toluene 186 050 207 ND 90 80-115 <br /> Toluene 186 050 207 ND 90 80-115 <br /> Ethylbenzene 3 96 050 „ 485 ND 82 75-115 <br /> Ethylbenzene 3 96 050 485 ND 82 75-115 <br /> Xylenes(total) 229 050 23 8 ND 96 75-115 <br />' ANdivlenes(total) 229 050 238 ND 96 75-115 <br /> arrogate a a a-Tr fluorotoluene 805 800 101 80-120 <br /> Surrogate a a a-Trrfluorotoluene 805 800 101 80-120 <br /> Surrogate 4-Bromofluorobenzene 795 n 800 99 80-120 <br /> Surrogate 4-Bromofluorobenzene 795 800 99 80-120 <br /> Matrix Spike Dup(5L28035-MSDI) Source MOL0952-02 Prepared&Analyzed 12/28/05 <br />' Gasoline Range Organics(C4-C 12) 167 50 ug/l 275 ND 61 55-130 4 35 <br /> Gasoline Range Organics(C4-C 12) 167 50 275 ND 61 55-130 4 35 <br /> Benzene 2 83 050 4 10 ND 69 75-150 9 25 QM02 <br />' Benzene 2 83 0 50 4 10 ND 69 75-150 9 25 QM02 <br /> Toluene 182 050 207 ND 88 80-115 2 25 <br /> Toluene 182 050 207 ND 88 80-115 2 25 <br />' Ethylbenzene 3 84 050 „ 4 85 ND 79 75-115 3 25 <br /> Ethylbenzene 3 84 0 50 4 85 ND 79 75-115 3 25 <br /> Xylenes(total) 224 0 50 23 8 ND 94 75-115 2 25 <br />' Xylenes(total) 224 050 " 238 ND 94 75-115 2 25 <br /> Surrogate a a a-Trrfluorotoluene 805 800 101 80-120 <br /> Surrogate a a a-Trrfluorotoluene 805 800 101 80-120 <br /> Surrogate 4-Bromofluorobenzene 791 N' 800 99 80-120 <br /> Surrogate 4-Bromofluorobenzene 791 800 99 80-120 <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 This <br /> analytical report must be reproduced in its entirety <br /> Page 20 of 31 <br />