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110 2nd Avenue South i1D7 Pacheco,CA 94553-5560 <br /> McCampbell A7t81yt1cal Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http 1lwww mcc bell com E-matt tnaui mccampbelE com <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix A WorkOrder 0306427 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 7449 Spiked Sample ID NIA <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 /> TPH(btex)£ N/A 60 N/A N/A N/A 109 109 0 70 130 <br /> ' MTBE N/A 10 N/A NIA N/A 989 981 0 845 70 130 <br /> Benzene N/A 10 N/A N/A N/A 993 988 0 562 70 130 <br /> ' Toluene N/A 10 N/A NIA N/A 106 107 0 817 70 130 <br /> Ethylbenzene N/A 10 N/A N/A N/A 102 101 148 70 130 <br /> Xylenes N/A 30 N/A N/A N/A 107 107 0 70 130 <br /> ' %SS N/A 100 N/A N/A N/A 976 98 8 1 23 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 /> ' 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)!(Amount Spiked) RPD=100'(MS—MSD)I(M5+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 /> £TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=anatyte 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 /> aria! a content <br />