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' 110 2nd Avenue South,#D7 Pacheco CA 94$53-5560 <br /> McCampbell Analytical Inc Telephone pbc1l corn <br /> E-mailFax 925-798-1622 <br /> http llwww mccampbetl com Ermam@rnccampbell corn <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matnx W WorkOrder 0312306 <br />' EPA Method SW8021 B18015Cm Extraction SW5030B BatchlD 9717 Spiked Sample ID 0312300-008A <br /> Sample Spiked MS' MSD' MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br />' pg/L uglL %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> T H(btex)z 55 85 60 965 924 222 112 108 365 70 130 <br />' MTBE ND 10 102 988 299 101 106 5 11 70 130 <br /> Benzene ND 10 974 994 205 110 109 101 70 130 <br /> Toluene ND 10 97 8 104 637 102 102 0 70 130 <br />' Ethylbenzene ND 10 108 108 0 110 108 142 70 130 <br /> Xylenes ND 30 110 107 308 100 100 0 70 130 <br />' %SS 113 100 111 111 0 105 104 165 70 130 <br /> All target compounds to the Method Blank ofthis extraction batch were ND less than the method RL with the following exceptions <br />' NONE <br /> lie <br /> 1 <br /> 1 <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate,RPO=Relative Percent <br />' Deviation <br /> %Recovery=100'(MS-Sample)I(Amount Spiked),RPD=100'(MS- MSD)I((MS+MSD)12) <br /> "MS and I or MSD spike recovenes may not be near 100%or the RPDs near 0%ff 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 matnx or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br /> 1 - <br />