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TestAmedca <br /> THE LEADER IN EN V IR O NSA ENTAL TESTING 17461 Derian Avenue.Suite 100, Irvine,CA 92614(949)261-1022 Fax:(949)260-3297 <br /> Arcadis-Folsom Project ID: Storrie Derailment <br /> 950 Glenn Drive,Suite 125 Sampled: 01/18/11 <br /> Folsom,CA 95630 ReportNumber: IUA1808 Received: 01/20/11 <br /> Attention: Danielle Catlin-Wright <br /> METHOD BLANK/QC DATA <br /> VOLATILE ORGANICS with OXYGENATES by GC/MS (EPA 8260B) <br /> Reporting Spike Source %REC RPD Data <br /> Analyte Result Limit MDL Units Level Result %REC Limits RPD Limit Qualifiers <br /> Batch: 11A2676 Extracted: 01/25/11 <br /> Blank Analyzed:01/25/2011(11A2676-BLKI) <br /> tert-Butanol(TBA) ND 10 6.5 ug/1 <br /> Ethanol ND 100 100 ug/l <br /> Surrogate:4-Bromofluorobenzene 21.5 ug/1 25.0 86 80-120 <br /> Surrogate:Dibromofluoromethane 21.4 ug/1 25.0 86 80-120 <br /> Surrogate:Toluene-d8 24.4 ug/1 25.0 98 80-120 <br /> LCS Analyzed:01/25/2011(11A2676-BS1) <br /> Acetone 16.1 10 4.5 ug/l 25.0 64 30-140 <br /> Benzene 25.0 0.50 0.15 ug/l 25.0 100 70-120 <br /> Bromobenzene 25.3 1.0 0.27 ug/l 25.0 101 75-120 <br /> Bromochloromethane 22.2 1.0 0.40 ug/l 25.0 89 70-130 <br /> Bromodichloromethane 23.4 1.0 0.30 ug/l 25.0 93 70-135 <br /> Bromoform 20.0 1.0 0.40 ug/l 25.0 80 55-130 <br /> Bromomethane 26.6 1.0 0.42 ug/l 25.0 106 65-140 <br /> 2-Butanone(MEK) 23.8 10 4.7 ug/l 25.0 95 40-140 <br /> n-Butylbenzene 26.0 1.0 0.37 ug/l 25.0 104 70-130 <br /> sec-Butylbenzene 26.2 1.0 0.25 ug/l 25.0 105 70-125 <br /> tert-Butylbenzene 26.4 1.0 0.22 ug/l 25.0 105 70-125 <br /> Carbon Disulfide 24.2 5.0 0.48 ug/l 25.0 97 50-130 <br /> Carbon tetrachloride 21.9 0.50 0.28 ug/l 25.0 88 65-140 <br /> Chlorobenzene 23.1 1.0 0.36 ug/l 25.0 92 75-120 <br /> Chloroethane 26.0 1.0 0.40 ug/l 25.0 104 60-140 <br /> Chloroform 21.4 1.0 0.33 ug/l 25.0 86 70-130 <br /> Chloromethane 24.2 1.0 0.40 ug/l 25.0 97 50-140 <br /> 2-Chlorotoluene 24.6 1.0 0.28 ug/l 25.0 98 70-125 <br /> 4-Chlorotoluene 25.0 1.0 0.29 ug/l 25.0 100 75-125 <br /> 1,2-Dibromo-3-chloropropane 23.8 5.0 0.97 ug/l 25.0 95 50-135 <br /> Dibromochloromethane 22.6 1.0 0.40 ug/l 25.0 90 70-140 <br /> 1,2-Dibromoethane(EDB) 22.8 1.0 0.40 ug/l 25.0 91 75-125 <br /> Dibromomethane 22.6 1.0 0.36 ug/l 25.0 90 70-125 <br /> 1,2-Dichlorobenzene 23.8 1.0 0.32 ug/l 25.0 95 75-120 <br /> 1,3-Dichlorobenzene 23.8 1.0 0.35 ug/l 25.0 95 75-120 <br /> 1,4-Dichlorobenzene 24.0 1.0 0.37 ug/l 25.0 96 75-120 <br /> Dichlorodifluoromethane 23.2 2.0 0.26 ug/l 25.0 93 35-155 <br /> 1,1-Dichloroethane 22.3 1.0 0.40 ug/l 25.0 89 70-125 <br /> 1,2-Dichloroethane 20.0 0.50 0.28 ug/l 25.0 80 60-140 <br /> TestAmerica Irvine <br /> Pat Abe For Heather Clark <br /> Project Manager <br /> The results pertain only to the samples tested in the laboratory. This report shall not be reproduced, <br /> except in full,without written permission from TestAmerica. IUA1808 <Page 31 of 64> <br />