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f 819 Striker Avenue,Suite 8 <br /> Sequoia Sacramento.CA 95834 <br /> (916)921-9600 <br /> FAX(916)921-0100 <br /> Analytical www.sequoialabs.com <br /> Shaw Environmental&Infrastructure-Sacrament Project: Harney Lane Landfill,San Joaquin County <br /> 1326 N.Market Blvd. Project Number: 791290/00007000 Reported: <br /> Sacramento CA,95834 Project Manager: Steve Giacomini 07/17/02 16:18 <br /> EPA 601 Volatile Organic Compounds by EPA Method 624-Quality Control <br /> Sequoia Analytical-San Carlos <br /> Reporting Spike . Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 2070019-EPA 5030B [P/TI <br /> LCS(2070019-BSI) Prepared&Analyzed:07/16;02 <br /> Chlorobenzene 20.1 0.50 ug/l 20.0 100 72-128 <br /> 1,1-Dichloroethene 20.2 0.50 20.0 101 63-137 <br /> Trichloroethene 20.9 0.50 20.0 104 77-123 <br /> Surrogate:l,2-Dichloroethane-d4 9.44 10.0 94.4 63-118 <br /> Surrogate:Toluene-d8 9.76 10.0 97.6 73-125 <br /> Surrogate:4-BFB 10.3 10.0 103 68-118 <br /> Matrix Spike(2070019-MSI) Source:S207031-01 Prepared&Analyzed:07/1602 <br /> Chlorobenzene 21.8 0.50 ug/I 20.0 109 38-150 <br /> 10-Dicht�oroethene24.2 0.50 20.0 121 28-167 <br /> Trichloroethene 21.7 0.50 20.0 108 35-146 <br /> Surrogate:l,2-Dichloroethane-d4 9.50 10.0 95.0 63-118 <br /> Surrogate:Toluene-d8 9.66 10.0 96.6 73-125 <br /> Surrogate:4-BFB 10.4 10.0 104 68-118 <br /> Matrix Spike Dup(2070019-MSD1) Source:S207031-01 Prepared&Analyzed:07/16.02 <br /> Chlorobenzene 20.8 0.50 ug/I 20.0 104 38-150 4.69 25 <br /> 1,1-Dichloroethene 23.0 0.50 20.0 115 28-167 5.08 25 <br /> Trichloroethene 21.7 0.50 20.0 108 35-146 0.00 25 <br /> Surrogate:l,2-Dichloroethane-d4 9.62 10.0 96.2 63-118 <br /> Surrogate:Toluene-d8 - 9.62 10.0 96.2 73-125 <br /> Surrogate:4-BFB 10.1 10.0 101 68-118 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entirety. <br /> Page 4 of 5 <br />