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CASTLE ANALYTICAL LABORATORY <br /> O TORY <br /> Environmental Testing Services 2333.5huttle Drive Atwater,CA 95301 Phone: (209)384-2930 <br /> i Certificate No.2480 Fax: (209)384-1507 <br /> Geological Technics, Inc. Client Project ID: 1218.2 i Method: LUFT/EPA 80168 <br /> 1101 7th Street Client Project Name:Elving(Broadway) "instrument b:HP-GC1 <br /> Modesto,CA 95354 Reference Number:8858 Extracted:01-11-06 <br /> Attn: Ray Kablanow Matrix:Water Analyzed:01-13-06 <br /> Analyst:Jim Phillips Reported:01-20-06 <br /> t� <br /> QUALITY CONTROL DATA REPORT <br />'F ANALYTE TPH-Diesel <br /> Spike Concentration: 250 <br /> Units: ug/L <br /> Batch#: TPHDW-1115 . <br /> Method Blank: ND " <br /> LCSA%Recovery: 96.4% 1s <br /> LCSB o°Recovery: 97.10/o <br /> Control Limits: 55-130 <br /> . <br /> Relative%Difference: 0801% �. <br /> i o . <br /> MS/MSD Batch#: TPHDW-1116 <br /> MS%Recovery: See Note <br /> MSD%Recovery: See Note <br /> >f ` <br /> Relative%Difference: See Note <br /> 3 <br /> I- Note:Insufficient sample material to prepare MS/MSD samples. LCS samples prepared in duplicate. <br /> q <br /> The LCS(Laboratory Check Sample)is a control sample of known, interferent free matrix that 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 /> of sample batch results."Due to matrix effects,the QC limits and recoveries for MS/MSD's are advisory only and are not used to accept or <br /> Pr <br /> reject batch results. <br /> APPROVED BY: <br /> James C.--PhilhpldiLabtratory Director or <br /> Clari J. Cone'/Laborat ry Manager <br /> ' a <br />