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McCam bell A al tical Inc. 1534 Willow Pass Road,Pittsburg,CA 94565-1701 —� Web:www.mccampbell.com E-mail:main@mccampbell.com "When Oualitv ounts" Telephone:877-252-9262 Fax:925-252-9269 QC SUMMARY REPORT FOR 6020A W.O.Sample Matrix: Solid QC Matrix: Soil BatchlD: 49264 WorkOrder 1003406 EPA Method 6020A Extraction SW3050B Spiked Sample ID: N/A Analyte Sample Spiked MS MSD MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) mg/Kg mg/Kg %Rec. % Rec. %RPD % Rec. %Rec. %RPD MS/MSD RPD LCS/LCSD RPD Antimony N/A 10 N/A N/A N/A 107 106 1.41 N/A N/A 75 - 125 20 Arsenic N/A 10 N/A N/A N/A 112 109 2.72 N/A N/A 75- 125 20 Barium N/A 100 N/A N/A N/A 106 105 0.663 N/A N/A 75- 125 20 Beryllium N/A 10 N/A N/A N/A 108 108 0 N/A N/A 75 - 125 20 Cadmium N/A 10 N/A N/A N/A 107 107 0 N/A N/A 75- 125 20 Chromium N/A 10 N/A N/A N/A 109 105 3.66 N/A N/A 75- 125 20 Cobalt N/A 10 N/A N/A N/A 114 111 2.14 N/A N/A 75 - 125 20 Copper N/A 10 N/A N/A N/A 114 111 3.11 N/A N/A 75 - 125 20 Lead N/A IO N/A N/A N/A 108 107 0.834 N/A N/A 75- 125 20 Mercury N/A 0.25 N/A N/A N/A 113 111 2.18 N/A N/A 75- 125 20 Molybdenum N/A 10 N/A N/A N/A 105 104 1.15 N/A N/A 75- 125 20 Nickel N/A 10 N/A N/A N/A 110 107 2.76 N/A N/A 75 - 125 20 Selenium N/A 10 N/A N/A N/A 110 107 2.76 N/A N/A 75 - 125 20 Silver N/A 10 N/A N/A N/A 109 108 1.29 N/A N/A 75- 125 20 Thallium N/A 10 N/A N/A N/A 105 104 0.575 N/A N/A 75- 125 20 Vanadium N/A I0 N/A N/A N/A 110 106 3.52 N/A N/A 75- 125 20 Zinc N/A 100 N/A N/A N/A 113 109 3.42 N/A N/A 75 - 125 20 %SS: N/A 250 N/A N/A N/A 109 107 1.67 N/A N/A 70- 130 20 All target compounds in the Method Blak of this extraction batch were ND less than the method RL with the following exceptions: NONE BATCH 49264 SUMMARY Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed 1003406-OOIA 03/09/10 2:15 PM 03/15/10 03/16/10 2:57 AM 1 1003406-00]A 03/09/10 2:15 PM 03/15/10 03/16/10 3:55 AM MS=Matrix Spike;MSD=Matrix Spike Duplica ;LCS=Laboratory Control Sample;LCSD=Laboratory Control Sample Duplicate;RPD=Relative Percent Deviation. %Recovery=100'(MS-Sample)/(Amount Spi ed);RPD=100'(MS- MSD)/((MS+MSD)/2). 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 significant concentrations of analyte re ative to the amount spiked,or b)the spiked sample's matrix interferes with the spike recovery. N/A=not applicable to this method. NR=analyte concentration in sample exceeds s)ike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or analyte content. DHS ELAP Certification 1644 )k QA/QC Officer