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TestAmerica <br /> 17461 Dorian Avenue.suite 100, Irvine,CA 92614(949)2®1-1022 Fax:(949)260-3297 <br /> THE LEADER IN ENVIRONMENTAL TESTING <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Navy Dr.,Stockton,CA Sampled: 04/08/11 <br /> 5900 Hollis St.,Suite A Received: 04/12/11 <br /> Emeryville,CA 94608 ReportNumber: IUD1020 <br /> Attention: Aubrey Cool .. = -------�-�-W <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 /> M1 The MS and/or MSD were above the acceptance limits due to sample matrix interference. See Blank Spike(LCS). <br /> M-3 Results exceeded the linear range in the MS/MSD and therefore are not available for reporting..The batch was <br /> accepted based on acceptable recovery in the Blank Spike(LCS). <br /> M7 The MS and/or MSD were above the acceptance limits. See Blank Spike(LCS). <br /> QP1 Hydrocarbon result partly due to individual peak(s)in quantitation range. <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 /> information. <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-C12): <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 /> TestArnerica Irvine <br /> Philip Sanelle <br /> Project Manager <br /> The results permin only to the sampler tested In the laboratory This seporl shall not be reproduced, fUD1020 <page 14 of I5> <br /> except to fall,mihour u,nuen permission from TesrAmerica. <br />