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Sequoia 8 19Striker Ave Ste <br /> Sacramerarme nto CA 958344 <br /> I ► Analytical <br /> (916) <br /> ,7 FAX(916)921 6100 <br /> www sequoialalabs cam <br /> i <br /> Blaes Environmental Project U-Haul S405616 <br /> I 1455 N 3rd Ave Project Number 709-50/Stockton Reported <br /> Phoem-,AZ,85005 Project Manager Steve Woodhill 06/11/04 16 01 <br /> GasolinelBTEXIOxygenates by EPA method 8260B - Quality Control <br /> Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 4060059-EPA 5030E [P/TJ <br /> Blank(4060059-BLK1) Prepared&Analyzed 06/02/04 <br /> r 1 1-Dichloroethane ND 0 50 ugA <br /> IEthanol ND 50 <br /> Tert-butyl alcohol ND 5 0 " <br /> Methyl tert-butyl ether ND 0 50 " <br /> I Di-isopropyl ether ND 0 50 i <br /> Ethyl tert-butyl ether ND 0 50 <br /> Tert-amyl methyl ether ND 0 50 <br /> 1,2 Dichloroethane ND 0 50 <br /> 1,2 Dibromoethane(EDB) ND 0 50 <br /> Benzene ND 0 50 <br /> Ethylbenzene ND 0 50 " <br /> Ouene ND 0 50 <br /> lenes(total) ND 0 50 <br /> Gasoline Range Organics(C4-C 12) ND 50 <br /> Suirogate Toluene-d8 10 6 100 106 60-1.10 <br /> Surrogate 4-BFB 9 95 100 100 60 140 <br /> Surrogate 1 2-DCA-d4 9 58 10 0 96 60-140 <br /> Laboratory Control Sample(4060059-BSI) Preeared&Analyzed 06/02/04 <br /> Methyl tert-butyl ether 8 07 0 50 ugA 8 64 93 60-140 <br /> Benzene 4 53 0 50 5 36 85 70-130 <br /> Toluene 332 0 50 30 3 110 70-130 <br /> IGasoline Range Organics(C4-C12) 386 50 440 88 70-130 <br /> Surrogate Toluene-d8 103 10 0 103 60-140 <br /> Surrogate 4-BFB 9 70 100 97 60-140 <br /> ISurrogate 1 2-DCA-d4 999 100 100 60-140 — <br /> Matrix Spike(4060059-MS1) Source S405616-22 Prepared 06/02/04 Analyzed 06/03/04 <br /> Methyl tert-butyl ether 8 17 0 50 ug/l 8 64 ND 95 60-140 <br /> Benzene 4 53 050 5 36 ND 85 70-130 <br /> Toluene 33 8 0 50 ;i 30 3 ND 112 70-130 <br /> Gasoline Range Organics(C4-C12) 388 50 440 ND 88 60-140 <br /> Surrogate Toluene-d8 102 10 0 102 60-140 <br /> ISurrogate 4-BFB 9 74 10 0 97 60-140 <br /> Surrogate 1,2-DCA-d4 9 48 100 95 60-140 <br /> equoia Analytical-Sacramento The results in thus 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 urs entirety <br /> Page 31 of 39 <br /> 1 <br />