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Certificate of Analysis <br /> Geocon Consultants,Inc. Project Number: LINDEN UST,59800-01-34 <br /> 3160 Gold Valley Drive,Suite 800 ReportTo: John Juhrend <br /> Rancho Cordova,CA 95742 <br /> Reported: 12/16/2014 <br /> Volatile Organic Compounds by EPA 8260B-Quality Control <br /> Result PQL Spike Source %Rec RPD <br /> Analyte (ug/kg) Level Result %Rec Limits RPD Limit Notes <br /> Batch B41,0297-MSVOA S <br /> Blank(B4L0297-BLKI) Prepared:12/10/2014 Analyzed: 12/10/2014 <br /> r <br /> Benzene ND 5.0 NR <br /> Toluene ND 5.0 NR <br /> Ethylbenzene ND 5.0 NR <br /> r m,p-Xylene ND 10 <br /> NR <br /> o-Xylene ND 5.0 NR <br /> MTBE ND 5.0 NR <br /> 1,2-Dibromoethane ND 5.0 NR <br /> r• 1,2-Dichlomethane ND 5.0 NR <br /> Di-isopropyl ether ND 5.0 NR <br /> Ethyl tert-butyl ether ND 5.0 NR <br /> MTBE ND 5.0 NR <br /> tert-Amyl methyl ether ND 5.0 <br /> NR <br /> ten-Butanol ND 100 NR <br /> Surrogate:1,2-Dichloroethane-d4 48.11 50.0000 96.4 67-151 <br /> Surrogate:1,2-Dichloroethane-d4 48.21 50.0000 96.4 67-152 <br /> Surrogate:4-BromoJluorobenzene 46.39 50.0000 92.8 59-135 <br /> Surrogate:4-BromoJluorobenzene 46.39 50.0000 91.8 59-135 <br /> Surrogate:DibromoJluoromethane 48.99 50.0000 98.0 71-150 <br /> Surrogate:DibromoJluoromethane 48.99 50.0000 98.0 71-150 <br /> Surrogate:Toluene-d8 48.38 50.0000 96.8 77-129 <br /> Surrogate:Toluene-d8 48.38 50.0000 96.8 77-119 <br /> LCS(B4L0297-BS1) Prepared:12/10/2014 Analyzed: 12/102014 <br /> Benzene 91.6800 5.0 100.000 91.7 82-121 <br /> Toluene 92.5200 5.0 100.000 92.5 80-129 <br /> m,p-Xylene 98.3700 10 100.000 98.4 71-150 <br /> r <br /> o-Xylene 97.8100 5.0 100.000 97.8 70-145 <br /> MTBE 44.5700 5.0 50.0000 89.1 55-138 <br /> 1,1-Dichlomethene 43.6800 5.0 50.0000 87.4 62-129 <br /> 1,1-Dichlomethene 43.6800 5.0 50.0000 87.4 62-129 <br /> Benzene 91.6800 5.0 100.000 91.7 82-121 <br /> Chlombenzene 47.8800 5.0 50.0000 95.8 83-132 <br /> Chlorobenzene 47.8800 5.0 50.0000 95.8 83-132 <br /> `. MTBE 44.5700 5.0 50.0000 89.1 55-138 <br /> Toluene 92.5200 5.0 100.000 92.5 80-129 <br /> Trichloroethene 48.0400 5.0 50.0000 96.1 75-133 <br /> Trichloroethene 48.0400 5.0 50.0000 96.1 75-133 <br /> r <br /> Surrogate:1,1-Dichloroethone-d4 50.14 50.(7000 100 67-152 <br /> Surrogate:1,2-Dichloroethaneal4 50.14 50.0000 100 67-152 <br /> Surrogate:4-BromoJluorobenzene 53.16 50.0000 106 59-135 <br /> Surrogate:4-BromoJluorobenzene 53.16 50.0000 106 59-135 <br /> 3275 Walnut Avenue,Signal Hill, CA 90755•Tel:562-989-4045•Fax.561-989-4040 6 tvwmarlglobal-com Page 11 of 16 <br />