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Dec-09-02 05:08pm From-Gettler-Ryan Inc +9Z5 551 T899 T-534 P 015/019 1-594 <br /> ,7)equoja 5acrnmcnto.CA9'F34 <br /> t9i6)921.9600 <br /> IWAAnalytical FAX(916)92)-0100 <br /> www.sc quoialabs,cora <br /> Gedlcr-Ryan-Dublin Project: TOSCO 1 I)92, Stockton,CA S211573 <br /> 747Sierra Coun,Ste.1 Proicct NuMbcr: N/A Reported: <br /> btin CA,94568 Project Manager: Dcanna l- Harding 12/06/02 15:34 <br /> Gasoline\BTEXOxygenates by EPA method 8260B- Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spikc Source %R EC RFD <br /> Analyte Result Limit Untts Level Result %REC Limits RPD Limit Notes <br /> Batch 2110445-EPA 5030E IWTI <br /> Blank(2110445-BLXI) Prepared: 11127!02 Analyzcd: 11/28/02 <br /> Benzene ND 0.50 UVI <br /> Toluene ND 0.50 <br /> Clhylbenzene ND Mo " <br /> Xylenes(10131) ND 0.50 " <br /> M. cthvl ten-butyl ether NO 2.0 <br /> GesolInc(C6-C 10) ND 50 " <br /> Surrogate: Toluene-d8 16,8 " 15.0 107 60-140 <br /> Surrogate;4-BFB 19.4 15.0 118 611-140 <br /> Laboratory Control Ssmple(2110445-BS1) _ Prepared: 11127/02 Analyzed: 11/28/02 <br /> 8cnzene - 3.2S 0.50 tig/l 3.35 98 70-130 <br /> Toluene 15.6 0.50 20.2 77 70-130 <br /> Methyl ten-butyl ether 4.61 2.0 " 5.45 55 60-140 <br /> •fine(C6-C 10) 351 50 275 128 70-130 <br /> I <br /> Surrogate:Tohicne-dN 16.7 15.0 107 60-140 <br /> Surmgote:4-8F6 19.0 15.0 116 60440 <br /> Matrix Spike(21)0445-MSI) _ Source: S21IS73-04 Prepared: 11/27102 Analyzed: 11/2S/02 <br /> Benzene 3.66 0.50 q/l 3.35 ND 109 70-130 <br /> TolLiene 17 6 0.50 24.2 0,67 84 70-130 <br /> Methyl Cert-butyl ether 160 2.0 5.45 150 183 60-140 QM-4X <br /> Gasoline(C6-CIO) 272 50 275 150 44 60-140 QM-07 <br /> 5urrogare: Toluene-d8 26.3 15.0 105 60-140 <br /> Surrogate:4-BFB 30.3 15.0 111 61)`140 <br /> A4arrix Spike Oup(21104A5-MSD1) Source: S21)57_3_-04 Prepared: 11/27/02Analyzcd: 11/28/02 <br /> Benzene - 3.73 0.50 UO 3.15 ND 111 70-130 2 25 <br /> Toluene I8.0 0.50 20.2 0.67 96 70-130 2 25 <br /> Methyl tort-bury]ether 167 2.0 5.45 150 312 60-140 4 25 QNI-4X <br /> Gasoline(C6-C10) 284 50 275 150 49 60-140 4 25 QM-U7 <br /> Surrogate;Toluene48 77.0 25.0 JOR 60-140 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples a,1a1j:ed in accordance with the chain of <br /> custody document Unle.as nther+.isa stared,results are rrlaortrsl wP a Wirt' eight basis. <br /> Thia analytical report roust be reproduced in its endr&;). <br /> Page 12 of 16 <br />