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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> McCamlpbeli Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> httpJ/urww mcc. bell corn &-mad mai ca bell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> 1 <br /> Matrix A WorkOrder 0305207 <br />' EPA Method SW8021BI8015Cm Extraction SW5030B BatchlD 6906 Spiked Sample 10 NIA <br /> Compound Sample Spiked MS' MSD' MS-MSD' LCS LCSD CS-LCSD Acceptance Criteria(%) <br />' pg/L pg/L % Rec %Rec %RPD %Rec % Rec % RPD Low High { <br /> TPH(btex)£ NIA 60 N/A NIA N/A 964 981 1 75 70 I 130 <br /> MTBE NIA 10 NIA N/A N/A 106 972 825 70 130 <br /> Benzene N/A 10 NIA N/A NIA 97 5 936 408 70 130 <br /> Toluene NIA 10 N/A N/A NIA 102 972 447 70 130 <br />' EthylbenzeneN/A 10 NIA N/A NIA 102 978 4 01 70 130 <br /> Xylenes N/A 30 N/A N/A N/A 107 1006 45 70 130 <br />' %SS N/A 100 N/A N/A N/A 103 101 1 93 80 120 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL,with the following exceptions <br />' NONE <br /> I <br /> MS=Matrix Spike,MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Dupltcate,RPD=Relabve Percent <br /> Deviation <br /> %Recovery=100'(MS-Sample)/(Amount Spiked),RPD=100'(MS—MSD)/(MS+MSD)"2 <br /> I '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 /> . £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=analyte concentration in sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> IanaW content <br />