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I <br /> 136 2nd Avenue South,#D7 Pacheco,CA 94553 SSbO <br /> Inc.McCampbell Analytical, WebsiteTelephone <br /> mccampbelcam E mad ma @mc ampbell corn <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0405480 <br />' EPA Method SW8021B/8015Cm Extraction SW50303 BatchlD 11749 Spiked Sample ID 0405476-006A <br /> Sample Spiked MS' MSD' MS-MSD' LCS I LCSD LCS-LCSD Acceptance Criteria(%) <br />' pg/L pgIL %Rec %Rec %RPD %Rec %Rec % RPD Low High <br /> TPH(btex)£ ND 60 98 939 426 98 1 987 0 587 70 130 <br />' MTBE ND 10 109 102 734 997 107 748 70 130 <br /> Benzene ND 10 119 107 101 108 111 297 70 130 <br /> Toluene ND 10 110 982 114 103 105 260 70 130 <br />' Ethylbenzene ND 10 114 106 6 89 107 110 286 70 130 <br /> Xylenes ND 30 100 95 3 478 963 967 0 345 70 130 <br />' %SS 101 10 107 105 1 76 102 104 149 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 />' 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)I(Amount Spiked) RPD=tee'(MS- MSD)I((MS+MSD)12) <br /> 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 applicable or 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 2 spike amount for water matrix or sample diluted due to high matrix or <br /> anal a content <br /> DHS Certification No 1644 QA/QC Officer <br /> 1 <br />