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Ave Ste <br /> Sequoia 819Sacramento <br /> s <br /> Sacramento CA 95834 <br /> Analytical (916)921-9600 <br /> FA]r(916)921-0]00 <br /> www sequoialabs com <br /> Geological Technics,Inc Project Valley Wholesale Drug Co 5408576 <br /> ' <br /> 111176,Street Project Number 989 2 Reported. <br /> Modesto CA,95354 Project Manager Enc price 09/09/04 16 13 <br /> Gasohne1BTEX\Oxygenates by EPA method 8260B-Quality Control <br /> ' Sequoia Analyfacal-Sacramento <br /> Reporting Spike Source °/9REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> ' Batch 4080482-EPA 5030B(P/TJ <br /> Matrix$ ike 4080482-MSl Source S408474-02 Prepared 09/01/04 Anal 09/02/04 <br /> ' Methyl tert-butyl ether 9 79 050 ug/l 864 ND 113 60-140 <br /> Benzene 6 O1 0 50 " 5 36 ND 112 70-130 <br /> Toluene 369 050 " 203 ND 122 70-130 <br /> Gasoline Range Organics(C4-Cl2) 345 50 " 440 ND 78 60 140 <br /> ' Surrogate Toluene-d8 110 100 110 60-140 <br /> Surrogate 4-BFB 857 100 86 60-140 <br /> Surrogate 12-DCA-d4 935 " 100 94 60-140 <br /> ' Matnx S Ike Du 4080482-MSD1Source 5408474-02 Prepared 09/01/04 Anal 09/02/04 <br /> Methyl tert-butyl ether 9 18 050 «g/l 864 ND 106 60-140 6 25 <br /> Benzene 559 0 50 " 536 ND 104 70-130 7 25 <br /> Toluene 35 9 0 50 303 ND 118 70-130 3 25 <br /> mm_asoline Range Organics(C4-C12) 359 50 440 ND 82 60-140 4 25 <br /> Surrogate Toluene-d8 106 " 100 106 60-140 <br /> Surrogate 4-BFB 8 61 100 86 60-140 <br /> ' Surrogate 1,2-DCA-d4 938 10 0 94 60-140 <br /> Batch 4090045-EPA 5030B PIT <br /> ' Blank 4090045-BLKt Prepared 09/02/04 Anal zed 09/03/04 <br /> Ethanol ND 020 mg/kg <br /> Tert-butyl alcohol ND 0 050 " <br /> Methyl tert-butyl ether ND 00050 " <br /> ' Di-isopropyl ether ND 00050 " <br /> Ethyl tert-butyl ether ND 00050 " <br /> Tert-amyl methyl ether ND 00050 " <br /> ' 1,2-Dichloroethane ND 00050 " <br /> 1,2-Dibromoethane(EDB) ND 00050 " <br /> Benzene ND 00050 " <br /> Ethylbenzene ND 00050 " <br /> Toluene ND 00050 " <br /> Xylenes(total) ND 0 010 " <br /> Gasoline Range Organics(C4-C12) ND 050 " <br /> Surrogate 1,1-DCA-d4 000928 00100 93 60-140 <br /> Surrogate Toluene-d8 00127 00100 127 60-140 <br /> Surrogate 4-BFB 000856 00100 86 60-140 <br /> ' Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain <br /> of custody document Unless otherwise stated results are reported on a wet weight <br /> basis This analytical report must be reproduced in its entirety <br /> Page 13 of 15 <br />