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5`" a(► <br /> 110 2nd Avenue South,#D7 Pacheco CA 94553 5560 <br /> Inc.4 1 McCampbell Analytical, Telephone 925-798-1620 Fax 925-799 1622 <br /> Website www mccampbell com E mail main niccanipbell com <br /> Ile QC SUMMARY REPORT FOR E218.6 <br /> W O Semple Matrix Water QC Matrix Water WorkOrder 0504049 <br /> EPA Method E218 6 Extraction E218 6 BatchlD 15830 Spiked Sample lD 0504149-001m <br /> Analyte Sample Spiked MS MSD MS-MSD LCS LCSD I LCS-LCSD Acceptance Criteria (%) <br /> pg1L pgIL %Rec % Rec % RPD %Rec % Rec % RPD MS/MSD LCS I LCSD <br /> Hexachrome ND 25 974 1 97 1 � 0 247 104 105 0 652 90- 1 10 90- 1 10 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> BATCH 15830 SUMMARY <br /> Sample ID Date Sampled Date Extracted Date Analyzed Sample ID Date Sampled Date Extracted Date Analyzed <br /> 0504049-013A 4105105 4/12/05 4112105 <br /> 0 <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)I(Amount Spiked) RPD=100'(MS MSD)I((MS+MSD)/2) <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 inhomogenous AND <br /> contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample s matnx 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 s ike amount for sad matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or analyte content <br /> DHS Certification No 1644 0 QA/QC Officer <br />