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Alpha Analytical Laboratories, Inc. email: rlientservices alpha-labs.com <br /> Corporate: 208 Mason Street I Ukiah, CA 95482 1 T, 707468-C401 l R 707468-5267 1 EL.AP# 1551 <br /> McCampbell Analytical/Alpha Quote 232557 Project Manager: Lab Reports <br /> 1534 Willow Pass Rd. Project: Soil Testing Reported: <br /> Pittsburg, CA 94565 Project Number: LLNL 13882-Disp 10/14/25 12:59 <br /> Volatile Organic Compounds by EPA Method 8260B-Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte(s) Result Limit Units Level Result %REC Limits RPD Limit Flag <br /> Batch AJ53925-NB EPA 5030 Soil GCMS <br /> MRL Check(AJ53925-MRLl) Prepared&Analyzed: 10/10/25 <br /> 1,1-Dichloroethane 3.55 2.5 ug/kg 2.50 142 50-200 <br /> Di-isopropyl ether 2.58 2.5 ug/kg 2.50 103 50-200 <br /> cis-1,2-Dichloroethene 3.08 2.5 ug/kg 2.50 123 50-200 <br /> 2,2-Dichloropropane 3.40 2.5 ug/kg 2.50 136 50-200 <br /> Chloroform 3.48 2.5 ug/kg 2.50 139 50-200 <br /> Bromochloromethane 3.50 2.5 ug/kg 2.50 140 50-200 <br /> Tetrahydrofuran 3.25 2.5 ug/kg 2.50 130 50-200 <br /> 1,1,1-Trichloroethane 3.38 2.5 ug/kg 2.50 135 50-200 <br /> 1,2-Dichloroethane 3.55 2.5 ug/kg 2.50 142 50-200 <br /> 1,1-Dichloropropene 2.68 2.5 ug/kg 2.50 107 50-200 <br /> Carbon tetrachloride 3.32 2.5 ug/kg 2.50 133 50-200 <br /> Benzene 3.30 2.5 ug/kg 2.50 132 50-200 <br /> Tert-amyl methyl ether 2.35 2.5 ug/kg 2.50 94.0 50-200 <br /> Trichloroethene 3.15 2.5 ug/kg 2.50 126 50-200 <br /> 1,2-Dichloropropane 3.25 2.5 ug/kg 2.50 130 50-200 <br /> Dibromomethane 3.45 2.5 ug/kg 2.50 138 50-200 <br /> Bromodichloromethane 3.22 2.5 ug/kg 2.50 129 50-200 <br /> cis-1,3-Dichloropropene 2.38 2.5 ug/kg 2.50 95.0 50-200 <br /> Toluene 3.40 2.5 ug/kg 2.50 136 50-200 <br /> trans-1,3-Dichloropropene 2.58 2.5 ug/kg 2.50 103 50-200 <br /> 1,1,2-Trichloroethane 3.30 2.5 ug/kg 2.50 132 50-200 <br /> 1,3-Dichloropropane 2.92 2.5 ug/kg 2.50 117 50-200 <br /> Dibromochloromethane 2.80 2.5 ug/kg 2.50 112 50-200 <br /> Tetrachloroethene 2.98 2.5 ug/kg 2.50 119 50-200 <br /> 1,2-Dibromoethane(EDB) 2.98 2.5 ug/kg 2.50 119 50-200 <br /> Chlorobenzene 3.48 2.5 ug/kg 2.50 139 50-200 <br /> 1,1,1,2-Tetrachloroethane 3.05 2.5 ug/kg 2.50 122 50-200 <br /> Ethylbenzene 2.62 2.5 ug/kg 2.50 105 50-200 <br /> m,p-Xylene 4.90 5.0 ug/kg 5.00 98.0 50-200 <br /> o-Xylene 2.32 2.5 ug/kg 2.50 93.0 50-200 <br /> Styrene 2.15 2.5 ug/kg 2.50 86.0 50-200 <br /> Xylenes(total) 7.22 7.5 ug/kg 7.50 96.3 50-200 <br /> Bromoform 2.88 2.5 ug/kg 2.50 115 50-200 <br /> 1,1,2,2-Tetrachloroethane 3.08 2.5 ug/kg 2.50 123 50-200 <br /> Isopropylbenzene 2.02 2.5 ug/kg 2.50 81.0 50-200 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> Page 11 of 18 <br />