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CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive, Atwater, CA 95301 Phone: (209) 384-2930 <br /> Fax: (209) 384-1507 <br /> Certificate No. 2480 <br /> Technicon Engineering Client Project ID: 180321 Method71D: <br /> C & F <br /> 4539 N. Brawley Ave. Suite 108 Lab Reference Number: 1805035 InstrumSPEC-1Fresno, CA 93722 Sample Description: Soil Extract18Attn: Steve Curra Sample Prep/Analysis Method: SM 5520 C & F Analyz18Matrix Spike ID: 1805035-01 Reported: 05- -18 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE OIL & GREASE <br /> Spike Concentration: 50 <br /> Units: mg/kg <br /> LCS Batch #: TRPH-5148 <br /> LCS % Recovery: 86% <br /> Control Limits: 60-130 % <br /> MS/MSD Batch #: TRPH-5148 <br /> MS% Recovery: 91 % <br /> MSD% Recovery: 99% <br /> Relative % Difference: 7.8% <br /> Please Note: <br /> The LCS (Laboratory Check Sample) is a control sample of known, Interferent free matrix that is fortified with representative <br /> analytes and analyzed using the same reagents, preparation and analytical methods employed for the samples. <br /> The LCS % recovery is used for validation of sample batch results. Due to matrix effects, the CC limits and recoveries for <br /> MSIMSD's are advisory only and not used to accept of reject batch results. <br /> APPROVED BY: <br /> James C. Phlll s / Laboratory Director or <br /> Clavi J. Cone I Laboratory Manager <br />