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' 110 2nd Avenue South #D7 Pacheco CA 99553- 560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798 1622 <br />' http//www mccampbell com E-mail mama ccampbell com <br /> QC SUMMARY REPORT FOR SW8260B <br /> 1 <br /> Matrix W WorkOrder 0306525 <br />' EPA Method SW8260B Extraction SW5030B BatchlD 7500 Spiked Sample ID 0306502-009B <br /> Sample Spiked MS* MSD" MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pglL % Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> Methyl-t-butyl ether(MTBE) ND 10 987 99 0 368 949 999 5 16 70 130 <br />' %SSI 106 100 118 116 151 943 98 5 436 70 130 <br /> i <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the fallowing exceptions <br /> NONE <br /> 1 <br /> r <br /> tw <br /> t <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)1(Amount Spiked),RPD=100'(MS—MSD)!(MS+MSD)*2 <br /> *MS and 1 or MSD 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 /> NIA=not enough sample to perform matnx 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 matnx 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 />