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• �7 819 Striker Avenue,Suite 8 <br /> X11 �'l Sacramento, 92 95834 <br /> �`-f! (916)921-96009600 <br /> FAX(916)921-0 100 <br /> ANALYTICAL TESTING CORPORATION <br /> www.tcstamericainc.com <br /> Blaine Tech Services(Shell) Project: 341 East Main Street,Ripon SQC0333 <br /> 1680 Rogers Avenue Project Number: 98995874 Reported: <br /> San Jose CA,95112 Project Manager: Jason Brown 04/09/07 12:28 <br /> Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> TestAmerica -Morgan Hill, CA <br /> Reporting Spike Source %REC RPD <br /> Analyte Result. Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 7C30048-EPA 5030B P/T/EPA 8260B <br /> Matrix Spike(7C30048-MSI) Source:MQC0734-01 Prepared:03/30/07 Analyzed:03/31/07 <br /> Benzene 12.2 0.50 ug/1 10.0 0.20 120 75-120 <br /> Toluene 12.4 0.50 10.0 ND 124 75-120 <br /> Ethylbenzene 12.0 0.50 10.0 ND 120 75-120 <br /> Xylenes(total) 35.2 0.50 30.0 ND 117 75-120 <br /> Methyl tert-butyl ether 11.8 0.50 10.0 ND 118 50-140 <br /> Di-isopropyl ether 12.1 0.50 10.0 ND 121 70-130 <br /> Ethyl tert-butyl ether 11.9 0.50 10.0 ND 119 65-130 <br /> tert-Amyl methyl ether 11.3 0.50 10.0 ND 113 65-135 <br /> tert-Butyl alcohol 201 20 200 ND 100 60-135 <br /> 1,2-Dichloroethane 11.2 0.50 - 10.0 ND 112 70-125 <br /> 1,2-Dibromoethane(EDB) 11.1 0.50 '10.0 ND 111 80-135 <br /> Ethanol 236 100 200 ND 118 15-150 <br /> Surrogate:Dibromofluoromethane 2.58 2.50 103 75-120 <br /> Surrogate:1,2-Dichloroethane-d4 2.42 2.50 97 75-120 <br /> Surrogate:Toluene-d8 2.54 2.50 102 80-120 <br /> Surrogate:4-Bromofluorobenzene 2.61 2.50 104 60-135 <br /> Matrix Spike Dup(7C30048-MSDI) Source:MQC0734-01 Prepared:0.3/30/07 Analyzed:03/31/07 <br /> Benzene 11.2 0.50 ug/1 10.0 0.20 110 75-120 9 20 <br /> Toluene 11.3 0.50 10.0 ND 113 75-120 9 25 <br /> Ethylbenzene 11.0 0.50 10.0 ND 110 75-120 - 9 20 <br /> Xylenes(total) 32.2 0.50 30.0 ND 107 75-120 9 20 <br /> Methyl tert-butyl ether 11.0 0.50 10.0 ND 110 50-140 7 25 <br /> Di-isopropyl ether 11.3 0.50 10.0 ND 113 .70-130 7 25 <br /> Ethyl tert-butyl ether 11.2 0.50 10.0 ND 112 -, 65-130 6 25 <br /> tert-Amyl methyl ether 10.8 0.50 - 10.0 ND 108 65-135 5 25 <br /> tert-Butyl alcohol 190 20 200 ND 95 60-135 6 25 <br /> 1,2-Dichloroethane 10.5 0.50 10.0 ND 105 70-125 6 25 <br /> 1,2-Dibromoethane(EDB) 10.3 0.50 10.0 ND 103 80-135 7 30 <br /> Ethanol 218 100 200 ND 109 15-150 8 25 <br /> Surrogate:Dibromofluoromethane 2.61 2.50 104 75-120 <br /> Surrogate:1,2-Dichloroethane-d4 2.38 .2.50 95 75-120 <br /> Surrogate:Toluene-d8 2.55 2.50 102 80-120 <br /> Surrogate 4-Bromofluorobenzene 2.55 2.50 102 60-135 <br /> TestAmerica-Sacramento,CA 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 18 of 23 <br />