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819 Striker Ave Ste 8 <br /> Sequoia Sacramento,CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921-0100 <br /> J www.sequoialabs.com <br /> Shaw E&I-Sacramento Project: Foothill Landfill,San Joaquin County S308259 <br /> 1326 N.Market Blvd, Project Number: 791289/00003000 Reported: <br /> Sacramento CA,95834 Project Manager: Steve Giacomini 08/27/03 17:09 <br /> Volatile Organic Compounds by EPA Method 8260B-Quality Control <br /> Sequoia Analytical-Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result MDL Limit Units Level Result %REC Limits RPD Limit Notcs <br /> ' Batch 3080256-EPA 5030B[P/TI <br /> Blank(3080256-BLK1) Prepared&Analyzed:08/19/03 <br /> ' Trichlorofluoromethane ND 0.42 0.50 ug/l <br /> 1,2,3-Trichloropropane ND 0.55 1.0 <br /> 1,2,4-Trimethylbenzene ND 0.18 0.50 <br /> 1,3,5-Trimethylbenzene ND 0.28 0.50 " <br /> ' Vinyl chloride ND 0.16 0.50 <br /> Xylenes(total) ND 0.48 0.50 <br /> Surrogate:Dibromq/luoromethane 27.2 25.0 109 70-130 <br /> Surrogate:1,2-DCA-d4 27.2 25.0 109 70-130 <br /> Surrogate:Toluene-d8 23.8 25.0 95 70-130 <br /> Surrogate:4-BFB 27.1 25.0 109 70-130 <br /> Laboratory Control Sample(3080256-BSI) Prepared&Analyzed:08/19/03 <br /> Benzene 25.7 0.28 0.50 ug/l 25.0 103 70-130 <br /> Chlorobenzene 24.1 0.32 0.50 25.0 96 70-130 <br /> 1,1-Dichloroethene 25.9 0.24 0.50 25.0 104 70-130 <br /> Toluene 23.7 0.32 0.50 25.0 95 70-130 <br /> Trichloroethene 21.4 0.36 0.50 25.0 86 70-130 <br /> Surrogate. Dibromofluoromethane 26.8 25.0 107 70-130 <br /> Surrogate:1,2-DCA-d4 26.7 25.0 107 70-130 <br /> Surrogate:Toluene-d8 24.1 II 25.0 96 70-130 <br /> Surrogate:4-BFB 27.5 25.0 110 70-130 <br /> Matrix Spike(3080256-MS1) Source:S308249-02 Prepared:08/19/03 Analyzed:08/20/03 <br /> Benzene 25.6 0.28 0.50 ug/l 25.0 ND 102 60-140 <br /> Chlorobenzene 24.5 0.32 0.50 25.0 ND 98 60-140 <br /> 1,1-Dichloroethene 26.1 0.24 0.50 25.0 ND 104 60-140 <br /> Toluene 24.7 0.32 0.50 25.0 ND 99 60-140 <br /> Trichloroethene 22.7 0.36 0.50I 25.0 0.77 88 60-140 <br /> Surrogate:Dibromofluoromethane 25.3 25.0 101 70-130 <br /> Surrogate:1,2-DCA-d4 25.8 25.0 103 70-130 <br /> ' Surrogate:Toluene-d8 24.2 25.0 97 70-130 <br /> Surrogate:4-BFB 25.0 25.0 100 70-130 <br /> Sequoia Analytical-Sacramento 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. <br /> This analytical report must be reproduced in its entirety. <br /> ' Page 14 of 18 <br />