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119 2nd Avenue South,ND7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798 1622 <br />' A# hup#www mccarnpbell cpm E-mail ntatn@mecampbell cont <br /> QC SUMMARY REPORT FOR SW8260B <br /> BatchlD 2539 Matrix W WorkOrder 0206330 <br />' EPA Method SW8260B Extraction SW5030B Ext Date 6120!02 Spiked Sample ID 0206318-003C <br /> Sample Spiked MS" I MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(°h) <br /> Compound <br /> Ng/L NglL % Rec °�Rec %RPD °k Rec °h Rec °1°RPD Low High <br /> Dusopropyl ether(DIPE) ND 10 116 115 124 111 112 1 1 70 130 <br /> Ethyl tert-butyl ether(ETRE) ND 10 113 111 105 108 110 2 1 70 130 <br /> Methyl-t-butyl ether(MTBE) ND 10 113 110 269 109 111 21 70 130 <br />' tert-Amyl methyl ether(TAME) ND 10 115 114 131 112 114 15 70 130 <br /> %SS 100 10 100 997 0 293 101 101 011 70 130 <br /> t 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 /> 1 <br /> 1 <br /> 1 <br /> 1 <br />' MS=Matrix Spike,MSD=Matrix Spike Duplicate LCS=Laboratory control Sample LCSD=Laboratory Control Sam-pie Duplicate RPD'=Relative Percent <br /> Deviation <br /> NIA=not enough sample to perform matrix spike,or analyte concentration in sample exceeds spike amount <br />' %Recovery=100*(MS-Sample)!(Amount Spiked),RPD=100`(MS—MSD)I(MS+MSD)'2 <br /> . *MS and!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 />' Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br />