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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> =A# MCCampbell Analytical Inc Telephone 925-798-1620 I-ax 925-798-1622 <br /> LUL)www mccampbellcom >rmmil niain Laanpbell cum <br /> • <br /> QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0312188 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 9604 Spiked Sample ID 0312170-007C <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Cntena(%) <br /> pg/L pglL % Rec % Rec %RPD % Rec %Rec % RPD Law Nigh <br /> Methyl-t-butyl ether(MTBE) ND 10 968 977 0 881 109 986 968 70 130 <br /> %SSI 105 100 107 105 268 106 105 0 981 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 /> NONF <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'(MSSampte)I(Amount Spiked),RPD=100'(MS- MSD)I((MS+MSD)12) <br /> *MS and I 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 matrix spike and matrix 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 matrix or <br /> analyte content <br /> LaboraI29 extraction solvents such as methyierie chlonde and acetone may occasionally appear in the method blank at low levels <br />