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1WY� McCamabell Analytical, Inc. 534 ,rncca PassRoad,Pittsburg.sin 94565-1701 <br /> Web:www.mecemPbelLcom E-mail:-mail:mvo®mccampbe0.com <br /> "When Dualiw Counts" Ta] hone:877-2524262 Fax:925452-9269 <br /> QC SUMMARY REPORT FOR WET CHEMISTRY TESTS <br /> Test Method: pH Matrix: W WorkOrder: 1008121 <br /> Method Name: SM4500H+B Units t,pH units @°C BatchlD: 52305 <br /> Lab ID Sample DF Dup f Ser.Dil. DF Precision Acceptance Criteria <br /> 1008121-OOIA 6.58 Q 23.3°C 1 6.60 ®23.3°C 1 0.02 0.05 <br /> BATCH 52305 SUMMARY <br /> Lab ID Date Sampled Date Extracted Dale Analyzed Lab ID Data Sampled Date Extracted Date Analyzed <br /> 1008121-OOIA 08/02/109:00 AM 08/05/10 08/05/]01:20 PM <br /> Dup=Duplicate;Sec Dil.=Serial Dilution;MS=Matrix Spike;RD=Relative Difference;RPD=Relative Percent Deviation. <br /> Precision=Absolute Value(Sample-Duplicate) <br /> RPD= 100'(Semple-Duplicate)/[(Sample+Duplicate)/21 <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 behveen the%RPD displayed above and%RPD calculated using the reported results.MAI considers%RPD based upon more significant figures to be more <br /> accurate. <br /> DHS ELAP Certification 1644 QA/QC Officer <br />