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"When Quality Counts" <br />1534 Willow Pass Road, P g, CA 94565-1701 <br />Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />http://www.mceampbell.com / E-mail: mainanccampbell.com <br />QC SUMMARY REPORT FOR 6010B <br />W.O. Sample Matrix: Soil QC Matrix: Soil BatchlD: 63456 WorkOrder: 1112484 <br />EPA Method: SW6010B <br />Extraction: SW3050B <br />12/15/11 <br />12/16/11 11:16 AM <br />11124 84-002A 12/15/11 11:00 AM 12/15/11 12/16/11 11:19 AM <br />1112484-003A <br />Spiked Sample ID: <br />1112440-001A <br />Analyte <br />Sample <br />mg/Kg <br />Spiked <br />mg/Kg <br />MS <br />% Rec. <br />MSD <br />% Rec. <br />MS -MSD <br />% RPD <br />LCS <br />% Rec. <br />Acceptance <br />Criteria (%) <br />MS / MSD RPD LCS <br />Cadmium <br />ND <br />50 <br />92.4 <br />94 <br />1.61 <br />107 <br />75- 125 <br />25 <br />75- 125 <br />Chromium <br />48 <br />50 <br />94.2 <br />90.6 <br />1.88 <br />101 <br />75- 125 <br />25 <br />75- 125 <br />Lead <br />120 <br />50 <br />NR <br />I NR <br />j NR <br />97.8 <br />75- 125 <br />25 <br />75-125 <br />Nickel <br />25 <br />50 <br />91.2 <br />90 <br />0.820 <br />104 <br />75- 125 <br />25 <br />75- 125 <br />Zinc <br />210 <br />500 <br />84.8 <br />86.6 <br />1.33 <br />122 <br />75 - 125 <br />25 <br />75- 125 <br />%SS: <br />101 <br />1 500 <br />105 <br />98 <br />6.39 <br />1 110 <br />1 70- 130 <br />20 <br />70- <br />0-All <br />Alltarget compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions: <br />NONE <br />BATCH 63456 SUMMARY <br />Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed <br />1112484-001A <br />12/15/11 10:45 AM <br />12/15/11 <br />12/16/11 11:16 AM <br />11124 84-002A 12/15/11 11:00 AM 12/15/11 12/16/11 11:19 AM <br />1112484-003A <br />12/15/11 11:25 AM <br />12/15/11 <br />12/16/11 11:22 AM <br />1112484-004A 12/15/11 11:35 AM 12/15/11 12/16/11 11:26 AM <br />1112484-005A <br />12/15/11 11:45 AM <br />12/15/11 <br />12/16/11 11:29 AM <br />MS = 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 inhomogenous AND contains <br />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 />NR = analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or analyte content. <br />DHS ELAP Certification 1644 <br />` QA/QC Officer <br />Page 20 of 21 <br />