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110 2nd Avenue South,4137,Pacheco,CA 94553-5560 <br /> McCampbell Analytical, Inc. Telephone:925-798-1620 Fax:925-798-1622 <br /> Website:www.mccainpbell.com E-mail:main a mccampbell.com <br /> QC SUMMARY REPORT FOR E218.6 <br /> -Matrix: S WorkOrder: 0405448 <br /> EPA Method: E218.6 Extraction: CA Title 22 BatchlD:11735 Spiked Sample ID: N/A <br /> Sample Spiked MS* j MSD* ;MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Ng/L pg/L %Rec. %Rec. %RPD %Rec. %Rec. 1 %RPD Low High <br /> 1 r <br /> Hexachrome N/A 125 N/A N/A N/A 95.6 95.8 i 0.293 90 110 <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 /> MS=Matrix Spike;MSD=Matrix Spike Duplicate;LCS=Laboratory Control Sample;LCSD=Laboratory Control Sample Duplicate;RPD=Relative Percent <br /> Deviation. <br /> i <br /> %Recovery=100*(MS-Sample)/(Amount Spiked);RPD=100*(MS- MSD)/((MS+MSD)/2). <br /> *MS and/or MSD spike recoveries may not be near 100%or the RPDs near 0%if:a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked,or b)if that specific sample matrix interferes with 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 <br /> analyte content. <br /> DHS Certification No. 1644 QA/QC Officer <br />