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TestAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Desian Avenue.Suite 100, Irvine,CA 92614(949)261-1022 Fax:(949)260-3297 <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Navy Dr.,Stockton,CA <br /> 5900 Hollis St.,Suite A Sampled: 03/30/11-03/31/11 <br /> Emeryville,CA 94608 ReportNumber. IUD0117 Received: 04/02/11 <br /> Attention: Aubrey Cool <br /> DATA QUALIFIERS AND DEFINITIONS <br /> C Calibration Verification recovery was above the method control limit for this analyte. Analyte not detected,data not <br /> impacted. <br /> L Laboratory Control Sample and/or Laboratory Control Sample Duplicate recovery was above the acceptance limits. <br /> Analyte not detected,data not impacted. <br /> M7 The MS and/or MSD were above the acceptance limits. See Blank Spike(LCS). <br /> MNR No results were reported for the MS/MSD. The sample used for the MS/MSD required dilution due to the sample <br /> matrix. Because of this,the spike compounds were diluted below the detection limit. <br /> MNRI There was no MS/MSD analyzed with this batch due to insufficient sample volume. See Blank Spike/Blank Spike <br /> Duplicate. <br /> RLI Reporting limit raised due to sample matrix effects. <br /> Z3 The sample required a dilution due to the nature of the sample matrix. Because of this dilution,the surrogate spike <br /> concentration in the sample was reduced to a level where the recovery calculation does not provide useful <br /> infomlation. <br /> ND Analyte NOT DETECTED at or above the reporting limit or MDL,if MDL is specified. <br /> RPD Relative Percent Difference <br /> ADDITIONAL COMMENTS <br /> For 8260 analyses: <br /> Due to the high water solubility of alcohols and ketones,the calibration criteria for these compounds is<30%RSD. <br /> The average%RSD of all compounds in the calibration is 15%,in accordance with EPA methods. <br /> For Volatile Fuel Hydrocarbons(C4-Cl2): <br /> Volatile Fuel Hydrocarbons(C4-Cl2)are quantitated against a gasoline standard. Quantitation begins immediately before TBA-d9. <br /> For Extractable Fuel Hydrocarbons(EFH,DRO,ORO): <br /> Unless otherwise noted,Extractable Fuel Hydrocarbons(EFH,DRO,ORO)are quantitated against a Diesel Fuel Standard. <br /> TestAmerica Irvine <br /> Pat Abe For Philip Sanelle <br /> Project Manager <br /> The resu/Isperlaln only to the samples tested M the labowlory. Thls reportsha/l nal b¢reproduced fUD0/17 <page 22 of 23> <br /> except m full,without written permissmn from TwMmerico. <br />