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CASTLE ANALYTICAL LABORATORY <br /> Environments[Testis Services F <br /> 9 2333 Shuttle Drive,Atwater,CA 95301 Phone: (209)384-2930 <br /> Certificate#2480 . <br /> Fax: (209)384-1507 <br /> [Attn: nics,Inc. Client Project Ib: 1218.2 # Method:TPM-Diesel <br /> Street Client Project Name:Elving(Broadway) Instrument ID:HP-CC1 <br /> 354 Reference Number:8858 Extracted:01-10-•06 <br /> aw Sample Description:Soil . Analyzed:01-12-06 <br /> Analyst:Clari Cone Reported:01-20-06 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE TPH-Diesef <br /> 1 Spike Concentration: 5.00 <br /> Units: mg/kg <br /> Batch#: TPHDS-1106 <br /> Method Blank: ND <br /> LCS%Recovery: 99.6% <br /> Control Limits: 60-130 <br /> f <br /> MS/MSD Batch#: TPHDS-1106 <br /> MS%Recovery'. 106% <br /> MSD%Recovery: 91.3% <br /> ` Relative%Difference: 13.7% <br /> a <br /> Please Note: l <br /> The LCS(Laboratory Check Sample)is a control sample of known,interferent free matrixiithat is fortified with representative analytes and <br /> analyzed using the same reagents, preparation and analytical methods employed for the samples, The LCS.%recovery is used for validation <br /> 1 f of sample batch results. Due to matrix effects,the QC limits and recoveries for MSIMSD's are advisory only and are not used to accept or <br /> reject batch results. <br /> t <br /> APPROVED BY: ;h <br /> ` James C:Phillips/ bo story Director or <br /> Clan J. Cone/Lab story Manager <br />