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1102nd Avenue South,#D7,Pacheco CA 945 53-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http//www mccampball corn E mail mam®mccampbell corn <br /> QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0309314 <br />' BPA Method SW8260B Extraction SW5030B BatchlD 8578 Spiked Sample ID 0309318-0120 <br /> Sample Spiked MS` MSD' MS-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 10 973 961 126 101 919 924 70 130 <br />' %SSI 124 t00 101 122 185 104 1 115 101 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 /> lie <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)/(MS+MSD)*2 <br /> MS and 1 or MSD spike recovenes 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 /> • NIA=not enough sample to perform matrix spike and matnx spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for soil matnx or exceeds 2x spike amount for water matnx or sample diluted due to high matrix or <br /> analyte content <br /> Laboratory extraction solvents such as methylene chionde and acetone may occasionally apeear in the method blank at low levels <br />