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Case Narrative <br /> Client: Conestoga-Rovers&Assoc. (Emeryville)/SHELL TestAmerica Job ID: NV_ L1479 <br /> Project/Site: SAP 135703 <br /> Job ID: NVL1479 <br /> Laboratory: TestAmerica Nashville I <br /> Narrative <br /> The original 8260B analysis of sample MW-24(NVL1479-07) analyzed within holding time, however the sample required a y <br /> dilution for Benzene. <br /> 8260B Benzene recovery in the matrix spike(35%) and matrix spike duplicate(29%) associated with batch I IL3018 are <br /> outside QC limits(75-133%). See blank spike. <br /> 8260B Benzene recovery in the matrix spike duplicate(74%)associated with batch 11L5135 is outside QC limits <br /> (75-133%). See blank spike. <br /> All samples for TPH DRO CA received by the laboratory in un-preserved containers. TPH DRO CA extraction performed <br /> within 7 days per EPA recommendation. <br /> No TPH DRO CA matrix spike or matrix spike duplicate analyzed for batch I IL2692 due to insufficient sample volume. See <br /> blank spike. <br /> NELAC Certification <br /> NELAC certifications are not held for the following analytes included in this report: <br /> Method Matrix Analyte <br /> CA LUFT GC/MS Water Gasoline Range Organics <br /> TestAmerica Nashville <br /> Page 4 of 48 12/22/2011 <br />