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McCam pbell Analytical, Inc. 1534 Willow Pass Road. Pittsburg, CA 94565-1701 <br />Web: www.inccainpW].com E-mail: main gmccampbell.com <br />"When Oualiry 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: 0901204 <br />EPA Method 6020A <br />01/12/09 1:17 PM <br />01/13/09 <br />Extraction SW3050B <br />BatchlD: 40739 <br />Spiked Sample ID 0901152-001A <br />Analyte <br />Sample <br />Spiked <br />MS <br />MSD MS -MSD <br />Spiked <br />LCS LCSD LCS-LCSD <br />Acceptance Criteria (%) <br />mg/Kg mg/Kg % Rec. <br />% Rec. % RPD <br />mg/Kg % Rec. % Rec. % RPD <br />MS / MSD RPD LCS/LCSD RPD <br />Nickel <br />21 <br />50 <br />104 <br />101 2.50 <br />10 <br />99.3 101 1 5I <br />75 - 125 20 75 - 125 20 <br />°/.SS: <br />108 <br />250 <br />107 <br />104 3.31 <br />250 <br />99 103 3.83 <br />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 />NONE <br />BATCH 40739 SUMMARY <br />Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed <br />0901204-OOIA <br />01/12/09 1:17 PM <br />01/13/09 <br />01/14/09 6:53 PM <br />0901204-002A 01/12/09 1:19 PM 01/13/09 )1/15/09 12:54 PN <br />0901204-003A <br />01/12/09 1:20 PM <br />01/13/09 <br />01/15/09 1:02 PM <br />0901204-004A 01/12/09 1:21 PM 01/13/09 01/15/09 1:10 PN <br />0901204-005A <br />01/12/09 1:24 PM <br />01/13/09 <br />01/15/09 1:19 PM <br />0901204-006A 01/12/09 1:26 PM 01/13/09 01/14/09 7:58 PN <br />0901204-007A <br />01/12/09 1:27 PM <br />01/13/09 <br />01/15/09 1:27 PM <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 <br />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 />NR = matrix interference and/or analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due <br />to high matrix or analyte content. <br />DFIS FLAP Certification 1644 QA/QC Officer <br />