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MCCamDbell Analytical Inc 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> Web:www.mccsmpbell.com E-mail:main@mmmpbell.com <br /> mpbell.com <br /> "When Oualitv Counts" Tele hone:877-252-9262 Fax:925-252-9269 <br /> QC SUMMARY REPORT FOR WET CHEMISTRY TESTS <br /> Test Method: Fractional Organic Content Matrix: S WorkOrder: 0906751 <br /> ' Method Name: ASTMD2974-87 Units ±,wet wt% BatchlD: 44102 <br /> Lab ID Sample DF Dup/Ser. Dil. DF %RPD Acceptance Criteria(%) <br /> [0906751 001A 2.0 1 1.9 1 0 <20 <br /> ' BATCH 44102 SUMMARY <br /> Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed <br /> 0906751-OOIA 06/02/09 06/24/09 06/26/09 2:00 PM <br /> t <br /> Dup=Duplicate;Ser. Dil.=Serial Dilution;MS=Matrix Spike; RD=Relative Difference;RPD=Relative Percent Deviation. <br /> Precision=Absolute Value(Sample-Duplicate) <br /> ' RPD=100'(Sample-Duplicate)/[(Sample+Duplicate)/2] <br /> %RPD is calculated using results of up to 10 significant figures,however the reported results are rounded to 2 or 3 significant figures.Therefore there may be a slight <br /> discrepancy between the%RPD displayed above and%RPD calculated using the reported results.MAI considers%RPD based upon more significant figures to be more <br /> accurate. �Q <br /> DHS ELAP Certification 1644 QA/QC Officer <br />