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110 2nd Ayenue South #D7 Pacheco CA 94553 5560 <br /> McCamphell Analytical Inc Telephone 925-798-1620 F1x 925 798-1622 <br />' hup lYwww mccampbell com F mwl mamQmccampbell com <br /> • QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0304251 <br />' EPA Method SW8260B Extraction SW5030B BatchlD 6574 Spiked Sample tD 0304236-008A <br /> Sample Spiked MS* MSD' MS-MSD" LCS LCSD ILCS-LCSDIAcceptance Criteria(%) <br />' Compound I �__ _ <br /> pg/L I pglL % Rec %Rec %RPD %Rec %Rec %RAD Low High <br /> Methyl-t-butyl ether(MTBE) ND 10 127 120 5 88 115 110 438 70 130 <br />' %SS 1 108 100 105 105 0 841 99=96 2 43 70 130 <br /> Alt target compounds in the Method Blank of this extraction batch were ND less than the method FL.with the following exceptions <br />' NONE <br /> 1 <br /> 1 <br /> ' MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=anatyte concentration in sample exceeds spike amount for sod matrix or exceeds 2x Spike amount for water matrix or sample diluted due to high matrix or <br /> ' analyte content <br /> Recovery=400*(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 RPOs 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 />