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I <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925 798-1622 <br /> h l/www mecampbell coin E-mail mai me bell com <br /> i 1 <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0307005 <br /> EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 7637 Spiked Sample ID 0307002-009A <br /> Sample Spiked MS' MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> ' pgIL pglL %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)€ ND 60 123 lit 107 108 103 434 70 130 <br /> MTBE ND 10 105 915 139 102 114 11 1 70 130 <br /> e <br /> Benzene ND l0 113 104 862 107 110 343 70 130 <br /> Toluene ND 10 106 96 6 935 101 105 421 70 130 <br /> ' Ethylbenzene ND 10 112 103 829 106 110 356 70 130 <br /> I <br /> Xylenes ND 30 103 100 328 100 100 0 70 130 <br /> ' %SS 104 100 112 101 1021 105 107 227 70 130 <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 /> t � <br /> MS=Matrix Spike,MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> ' <br /> Deviation <br /> %Recovery=100'(MS-Sample)l(Amount Spiked),RPD=100.(MS—MSD)/(MS+MSD)'2 <br /> MS and/or MSD spike reoovenes 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 STEX areas from the FID <br /> • #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> ' <br /> N/A=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration In sample exceeds spike amount for sod matnx or exceeds 2x spike amount for crater matrix or sample diluted due to high matrix or <br /> analyte content <br /> I <br /> I <br />