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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: 01/17/11 <br /> Folsom,CA 95630 ReportNumber: IUA1672 Received: 01/19/11 <br /> Attention: Danielle Catlin-Wright <br /> METHOD BLANK/QC DATA <br /> DISSOLVED GASES BY HEADSPACE EQUILIBRIUM(RSK-175 MOD.) <br /> Reporting Spike Source %REC RPD Data <br /> Analyte Result Limit MDL Units Level Result %REC Limits RPD Limit Qualifiers <br /> Batch: IIA2894 Extracted: 01/26/11 <br /> Blank Analyzed:01/26/2011(11A2894-BLKI) <br /> Ethane ND 0.0010 0.00050 mg/l <br /> Ethylene ND 0.0010 0.00050 mg/l <br /> Methane ND 0.0010 0.00030 mg/l <br /> LCS Analyzed:01/26/2011(11A2894-BS1) <br /> Ethane 0.0268 0.0010 0.00050 mg/l 0.0258 104 80-120 <br /> Ethylene 0.0250 0.0010 0.00050 mg/1 0.0240 104 80-120 <br /> Methane 0.0145 0.0010 0.00030 mg/l 0.0136 107 80-120 <br /> Duplicate Analyzed:01/26/2011(11A2894-DUP1) Source:IUA1672-01 <br /> Ethane ND 0.0010 0.00050 mg/l ND 25 <br /> Ethylene ND 0.0010 0.00050 mg/l ND 25 <br /> Methane 0.000876 0.0010 0.00030 mg/l 0.000481 58 25 R-4,J <br /> TestAmerica Irvine <br /> 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. IUA1672 <Page 95 of 112> <br />