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534 Willow <br /> McCamabell Analytical, Inc. a ww,mccampbsll.com Pittsburg,CA 94565-1701 <br /> ' Web:www.mccampbell.com E-mail:main®mccampbell.com <br /> "When Ouality Counts" Tele hone:877-252-9262 Fax:925-252-9269 <br /> QC SUMMARY REPORT FOR E410.4 <br /> ' W.O.Sample Matrix: Water QC Matrix: Water BatchlD: 44705 WorkOrder 0907603 <br /> EPA Method SM5220D Extraction SM5220D Spiked Sample ID: 0907603-001A <br /> t Sample Spiked MS MSD MS-MSO LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Analyte <br /> mg/L mg/L %Rec. %Rec. %RPD %Rec. %Rec. %RPD MS/MSD RPD LCS/LCSD RPD <br /> COD 58 400 98.1 98.1 0 102 99.9 1.80 80- 120 1 20 90- 110 1 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 44705 SUMMARY <br /> Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed <br /> 0907603-OOIA 07/22/09 2:20 PM 07/24/09 07/24/09 4:13 PM 0907603-002A 07/22/09 1:25 PM 07/24/09 07/24/09 4:19 PM <br /> 0907603-003A 07/22/09 12:10 PM 07/24/09 07/24/09 4:25 PM 0907603-004A 07/22/09 10:20 AM 07/24/09 07/24/09 4:31 PM <br /> 0907603-OOSA 07/22/09 4:00 PM 07/24/09 07/24/09 4:37 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 AND <br /> contains significant concentrations of analyte relative to the amount spiked,or b)the spiked sample's matrix interferes with the spike recovery. <br /> L N/A=not enough sample to perform matrix spike and matrix spike duplicate. <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 QA/QC Officer <br />