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j. 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> McCampbell Analytical, Inc. Web:www.mccampbelLcom E-mail:main@mccampbell.com <br /> +t♦F "When Oualitv Counts" Telephone:877-252-9262 Fax:925-252-9269 <br /> QC SUMMARY REPORT FOR WET CHEMISTRY TESTS <br /> Test Method: pH Matrix: S WorkOrder: 0906008 <br /> Method Name: SV19045D Units ±,pH units @°C BatchlD: 43512 <br /> Lab ID Sample DF Dup/.Ser.Dil. DF Precision Acceptance Criteria <br /> 0906008-001 A 4.33 @ 23.2°C 1 4.33 @ 23.2°C l 0 0.05 <br /> 0906008-002A 4.55 @ 23.3°C l 4.56 @ 23.4°C 1 0.01 0.05 <br /> BATCH 43512 SUMMARY <br /> Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed <br /> 0906008-001A )6/01/09 10:45 AM 06/01/09 06/01/09 5:36 PM I 0906008-002A 16/01/09 11:26 AM 06/01/09 06/01/09 5:42 PM <br /> Dup=Duplicate;Ser.Oil.=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)/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 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. <br /> DHS ELAP Certification 1644 `' QA/QC Officer <br />