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n 110 2nd Avenue South #D7 Pacheco CA 94»3 »60 <br /> McCampbell Analytical, Inc. Telephone 925 798-1620 F-it 92� 791-1612 <br /> Website www mccvnpbeh com E mail mvn iIinccampbVd cam <br /> . QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0409206 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 13142 Spiked Sampfe lD 0409205-004B <br /> Analyte Sample Spiked MS` MSD" MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L Ng/L % Rec % Rec % RPD %Rec ++ %Rec %RPD Low High <br /> Methyl t-butyl ether(M QBE) 282 10 NR NR NR 100 I 98 234 1 70 130 <br /> %SS 1 980 10 103 101 1 72 102 101 1 26 70 130 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the tollowing t,xc,eptions <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 /> %Recovery=100'(MS Sample)/(Amount Spiked) RPD=100"(MS MSD)1((MS+MSD)12) <br /> MS 1 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 <br /> inhomogenous AND contains significant concentrations of analyte relative to the amount spiked orb)the spiked samples matrix interferes with the spike recovery <br /> N/A=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for sort matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br /> Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br /> DHS Certification No 1644 QA/QC Officer <br />