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110 2nd Avenue South,#137 Pacheco,CA 94553 5560 <br /> McCampbell Analyttcal Inc Telephone 925-7984620 Fax 925 798-1622 <br /> http/lwww mccampbell com E mail mam r@mccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0312187 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 9621 Spiked Sample 1D 0312187-012A <br /> Sample Spiked MS' MSD" MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> }aglL pg/L % Rec %Rec % RPD %Rec %Rec %RPD Low High <br /> 1 PH(btex)E ND 60 949 89 635 934 996 634 70 130 <br /> MTBE ND 10 967 966 0 136 102 861 173 70 130 <br /> Benzene ND 10 997 102 214 924 102 103 70 130 <br /> Toluene ND 10 104 104 0 83 7 951 127 70 130 <br /> Ethylbenzene ND 10 107 107 0 901 105 154 70 130 <br /> Xylenes ND 30 107 t i0 3 08 83 93 t14 70 130 <br /> %SS 116 100 106 110 3 03 994 112 119 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)1((MS+MSD)12) <br /> MS and 1 or MSD spike recovenes may not be near 100%or the BPDs near O%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 soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br />