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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http llwww mcrampWl corn E-mail main(Rtucc4impbell com <br /> QC SUMMARY REPORT FOR SW8260B <br /> t <br /> Matrix W WorkOrder 0303416 <br />' EPA Method SW8260B Extraction SW5030B BatchlD 6306 Spiked Sample ID 0303417-007B <br />' <br /> Compound Sample Spiked MS' NASD" NIS MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg/L % Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> Methyl-t-butyl ether(MTBE) ND 10 101 955 553 117 lis 210 70 130 <br />' %SS 986 100 110 107 284 1 983 964 193 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 /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> 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 <br /> analyte content <br /> %Recovery=100-(MS-Sample)/(Amount Spiked) RPD=100'(MS—MSD)/(MS+MSD)'2 <br /> MS and/or MSO 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 />