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McCamubell Analytical. Inc. 1534 Willow Pass Road, E-mail:min 94565-1701 <br /> Web:www.mccampbell.com E-mail:min@mccmpbell.com <br /> "When Quality Counts" Telephone:877-252-9262 Fax:925-252-9269 <br /> QC SUMMARY REPORT FOR 6020A <br /> W.O.Sample Matrix: Soil QC Matrix: Soil WorkOrder 0712440 <br /> EPA Method 6020A Extraction SW3050B BatchlD: 32533 Spiked Sample ID 0772440-004A <br /> Sample Spiked MS MSD I MS-MSD Spiked LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Analyte <br /> as. mg/Kg mg/Kg %Rec. %Rec. %RPD mg/Kg %Rec. %Rec. %RPD MS/MSD RPD LCS/LCSD RPD <br /> Arsenic 10 50 95.7 95.1 0.568 10 86.2 91.3 5.67 70- 130 20 90- 120 20 <br /> Lead 25 50 89.6 94.5 3.43 10 93.7 95.9 2.34 70- 130 20 80- 120 20 <br /> r <br /> %SS: 99 250 92.2 92 0.0867 250 92 1 94 2.75 70- 130 20 70- 130 20 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions: <br /> r <br /> NONE <br /> V BATCH 32533 SUMMARY <br /> Sample ID Date Sampled Date Extracted Date Analyzed Sample ID Date Sampled Date Extracted Date Analyzed <br /> 0712440-002A 12/12/07 10:55 AM 12/13/07 12/14/07 107-:04 PM 0712440-003A 12/12/07 8:39 AM 12/13/07 12/14/07 10:10 PM <br /> V 0712440-004A 12/12/07 10:15 AM 12/13/07 12/14/07 7:16 PM <br /> V <br /> has <br /> h. <br /> r <br /> r <br /> MMS=Matrix Spike;MSD=Matrix Spike Duplicate;LCS=Laboratory Control Sample;LCSD=Laboratory Control Sample Duplicate;RPD=Relative Percent Deviation. <br /> r <br /> %Recovery=100'(MS-Sample)/(Amount Spiked);RPD=100'(MS- MSD)/((MS+MSD)12). <br /> MS/MSD spike recoveries and/or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons:a)the sample is <br /> inhomogenous AND contains significant concentrations of analyte relative to the amount spiked,or b)the spiked sample's matrix interferes with the spike recovery. <br /> WA=not applicable to this method. <br /> ` DHS ELAP Certification N° 1644 QA/QC Officer <br />