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T\� McCampbell Analytical. Inc. 1534 Willow Pass Road,Pittsburg,inaikCA94565-1701 <br /> Web:www.mccampbell.com Email:mainQmcc�npbell.com <br /> "When Quality Counts" Tele hone:877-252-9262 Fax:925-252-9269 <br /> QC SUMMARY REPORT FOR 6020A <br /> W.O.Sample Matrix: Soil OC Matrix: Soil WorkOrder 0712346 <br /> EPA Method 6020A Extraction SW30506 BatchlD: 32452 Spiked Sample ID 0712172-006A <br /> Analyte Sample Spiked MS MSD MS-MSD Spiked LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> mg/Kg mg/Kg %Rec. %Rec. %RPD mg/Kg %Rec. %Rec. %RPD MS/MSD RPD LCS/LCSD RPD <br /> Arsenic 3.3 50 105 116 9.65 10 102 111 8.65 70- 130 20 80- 120 20 <br /> Lead 12 50 104 115 8.37 10 101 108 6.30 70- 130 20 80- 120 20 <br /> %SS: 90 250 94 101 7.61 250 103 109 5.53 70- 130 20 70- 130 20 <br /> All target compounds in the Method Blank of this extraction batch were NO less than the method RL with the following exceptions: <br /> ` NONE <br /> �. BATCH 32452 SUMMARY <br /> Sample ID Date Sampled Date Extracted Date Analyzed Sample ID Date Sampled Date Extracted Date Analyzed <br /> 0712346-OOIA 12/11/07 9:58 AM 12/11/07 12/12/07 5:55 PM 0712346-002A 2/11/07 10:20 AM 12/11/07 12/12/07 6:01 PM <br /> ` 0712346-003A 12/11/07 11:00 AM 12/11/07 12/12/07 6:07 PM 0712346-004A 2/11/07 11:25 AM 12/11/07 12/12/07 6:12 PM <br /> 0712346-004A 12/11/07 11:25 AM 12/11/07 12/13/07 6:50 PM 0712346-005A 2/11/07 11:55 AM 12/11/07 12/12/07 6:18 PM <br /> 0712346-006A 12/11/07 1:50 PM 12/11/07 12/12/07 6:24 PM 0712346-006A 12/11/07 1:50 PM 12/11/07 12/13/07 6:58 PM <br /> L 0712346-007A 12/11/07 2:17 PM 12/11/07 12/12/07 6:30 PM 0712346-007A 12/11/07 2:17 PM 12/11/07 12/13/07 7:06 PM <br /> V <br /> MMS=Matrix Spike:MSD=Matrix Spike Duplicate;LCS=Laboratory Control Sample;LCSD=Laboratory Control Sample Duplicate;RPD=Relative Percent Deviation. <br /> %Recovery=100'(MS-Sample)/(Amount Spiked);RPD=100'(MS- MSD)/((MS-MSD)/2). <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 /> N/A=not applicable to this method. <br /> DI IS ELAP Certification N° 1644 J2— QA/QC Officer <br />