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1 <br /> 110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> bttp//www mccampbell com E-mail main@rriccampbell coin <br /> QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0309314 <br />' EPA Method SW8260B Extraction SW5030B BatchlD 8574 Spiked Sample ID 0309340-002B <br /> Sample Spiked MS' MSD" MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria (%} <br />' lig/L pg/L t % Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> Methyl-t-butyl ether(MTBF) ND 10 819 83 7 2 18 873 102 156 70 130 <br />' %SS1 1 119 100 114 117 j 2 03 1 114 1 106 730 70 130 <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 />�s <br /> N <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)I(Amount Spiked) RPD=100'(MS—MSD)1(IVIS+MSD)•2 <br /> `MS and I or MSD spike recoveries may not be near I00%or the RPDs near 0%if a)the sample+5 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 /> NIA=not enough sample to perform matrix spike and matnx 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 <br /> analyte content <br /> Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br />