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819 Striker Avenue,Suite 81 <br /> ea <br /> a Sacramento,CA 95834 <br /> l.i i (916)921-9600 <br /> FAX(916)921-0100 <br /> Analytical www.sequoktabs.com <br /> EMCONAT-Sacramento Project: Foothill Landfill,San Joaquin County , <br /> 1433 N.Market Blvd. Pncject Number: 791289 Reported: <br /> Sacramento CA,95834 PncjectManager: Steve Giacomini 01/31/01 17:10 ' <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical-Petaluma , <br /> Reporting Spike Source %REC RPD <br /> Analyte Result MDL limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1010490-EPA 5030 waters <br /> Blank(1010490-BLK2) Prepared&Analyzed:01/23/01 <br /> Styrene ND 0.0900 0.500 ugA , <br /> 1,1,2,2-Tetrachloroethane ND 0.170 0.500 " <br /> 1,1,1,2-Tetrachloroethane ND 0.0800 0.500 " <br /> Tetrachloroethene ND 0.0800 0.500 " <br /> Toluene ND 0.0700 0.500 <br /> 1,2,3-Trichlorobenzene ND 0.120 0.500 " <br /> 1,2,4-Trichlorobenzene ND 0.100 0.500 " <br /> 1,1,2-Trichloroethane ND 0.0800 0.500 , <br /> 1,1,1-Trichloroethane ND 0.0500 0.500 " <br /> Trichloroethene ND 0.0600 0.500 " <br /> Trichlorofluoromethane ND 0.0700 0.500 <br /> 1,2,3-Trichloropropane ND 0.0800 0.500 " <br /> 1,3,5-Trimethylbenzene ND 0.110 0.500 " <br /> 1,2,4-Trimethylbenzene ND 0.110 0.500 " <br /> Vinyl acetate ND 1.64 5.00 ' <br /> Vinyl chloride ND 0.0600 0.500 " <br /> m,p-Xylene ND 0.210 0.500 " <br /> o-Xylene ND 0.0700 0.500 ' <br /> Surrogate:Dibromofluoromethane 5.15 5.00 103 88-118 <br /> Surrogate:1.2-Dichloroethane-d4 5.13 5.00 103 81-130 <br /> Surrogate:Toluene-d8 4.70 5.00 94.0 84-115 , <br /> Surrogate:4-Bromofluorobenzene 5.42 5.00 108 78-124 <br /> LCS(1010490-BSI) Prepared&Analyzed:01/22/01 <br /> Benzene 5.09 0.0500 0.500 ug/l 5.00 102 80-119 <br /> Chlorobenzene 5.13 0.0700 0.500 5.00 103 86-117 <br /> 1,1-Dichloroethene 5.11 0.0600 0.500 5.00 102 74-114 <br /> Toluene 5.02 0.0700 0.500 5.00 100 86-115 <br /> Trichloroethene 5.05 0.0600 0.500 5.00 101 84-120 <br /> Surrogate:Dibromofluoromethane 5.16 5.00 103 88-118 <br /> Surrogate:1,2-Dichloroethane-d4 5.51 5.00 110 81-130 <br /> Surrogate:Toluene-d8 4.71 5.00 94.2 84-115 <br /> Surrogate:4-Bromofluorobenzene 4.90 5.00 98.0 78-124 <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 20 of 21 <br />