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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 /> www.sequoialabs.com <br /> Shaw E&I-Sacramento Project: Corral Hollow Landfill,San Joaquin County S310191 <br /> 1326 N.Market Blvd. Project Number. 791291/00004000 Reported: <br /> Sacramento CA,95834 Project Manager: Steve Giacomini 12/04/03 14:58 <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 Notes <br /> ' Batch 3100255-EPA 5030B [P/Tl <br /> Blank(3100255-BLK3) Prepared&Analyzed: 10/22/03 <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 n <br /> Xylenes(total) ND 0.48 0.50 <br /> Surrogate:Dibromofluoromethane 23.9 25.0 96 70-130 <br /> Surrogate:1,2-DCA-d4 24.7 25.0 99 70-130 <br /> Surrogate:Toluene-d8 15.9 " 15.0 104 70-130 <br /> Surrogate:4-BFB 25.3 25.0 101 70-130 <br /> Laboratory Control Sample(3100255-BS1) Prepared.&Analyzed: 10/17/03 <br /> Benzene 23.7 0.28 0.50 ug/l 25.0 95 70-130 <br /> Chlorobenzene 25.0 0.32 0.50 25.0 100 70-130 <br /> 1,1-Dichloroethene 26.4 0.24 0.50 25.0 106 70-130 <br /> Toluene 25.5 0.32 0.50 25.0 102 70-130 <br /> Trichloroethene 18.9 0.36 0.50 25.0 76 70-130 <br /> Surrogate:DibromoJluoromethane 23.6 25.0 94 70-130 <br /> Surrogate:1,2-DCA-d4 15.3 " 25.0 101 70-130 <br /> Surrogate:Toluene-d8 15.4 25.0 102 70-130 <br /> Surrogate:4-BFB 15.4 25.0 102 70-130 <br /> Laboratory Control Sample(3100255-BS2) Prepared&Analyzed: 10/21/03 <br /> Benzene 9.82 0.28 0.50 ug/l 10.0 98 70-130 <br /> Chlorobenzene 10.2 0.32 0.50 10.0 102 70-130 <br /> 1,1-Dichloroethene 10.4 0.24 0.50 10.0 104 70-130 <br /> ' Toluene 10.5 0.32 0.50 n 10.0 105 70-130 <br /> Trichloroethene 7.66 0.36 0.50 10.0 77 70-130 <br /> Surrogate:DibromoJluoromethane 24.1 25.0 96 70-130 <br /> ' <br /> Surrogate:1,2-DCA-d4 25.1 15.0 100 70-130 <br /> Surrogate:Toluene-d8 25.9 15.0 104 70-130 <br /> Surrogate:4-BFB 25.6 15.0 102 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 58 of 66 <br />