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1 110 2nd Avenue South,kD7,Pacheeo CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798-1622 <br /> 1 http I/www mccampbell com E-mail main@mccampbell com <br /> QC SUMMARY REPORT FOR SW8260B <br /> 1 <br /> BatchlD 2250 Matrix W WorkOrder 0206018 <br /> 1 EPA Method SW8260B Extraction SW5030B Ext Date 6104/02 Spiked Sample ID NIA <br /> Sample Spiked MS' MSD" MS-MSD- LCS LCSD LCS-LCSD Acceptance Criteria(%) <br />� Compound <br /> ' pg/L pglL %Rec %Rec %RPD %Rec %Rec %RPD i Low High <br /> Dosopropyl ether(DIPE) NIA 10 NIA NIA NIA 108 119 99 70 130 <br /> ' Ethyl tert-butyl ether(ETRE) NIA 10 NIA NIA NIA 105 117 11 70 130 <br /> Methyl-t-butyl ether(MTBE) NIA 10 NIA NIA NIA 101 114 13 70 130 <br /> ' tert-Amyl methyl ether(TAME) NIA 10 NIA NIA NIA 976 110 12 70 130 <br /> %SS NIA 10 1 NIA NIA NIA 103 102 16 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 /> 1 NONE <br /> 1 <br /> 1• <br /> 1 <br /> i <br /> 1 <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 or analyte concentration in sample exceeds spike amount <br /> 1 %Recovery=100'(MS-Sampre)/(Amount Spiked) RPD=100•(MS—MSD)I(MS+MSD)'2 <br /> 'MS and I or MSD spike recoveries may not be near 100%or the RPDs near 0°h rl•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 /> ' Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br /> I <br />