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y+ 1102nd Avenue South #D7 Pacheco CA 94553 5560 <br /> Inc.McCampbell Analytical, leleplione 925-798-1620 Fax 925-798-1622 <br /> Webcil4 www mccampbell com Email mani@mccampbell corn <br /> . QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0407214 <br /> EPA Method SW8021B/8015Cm Extraction SW503013 BatchlD 12371 Spiked Sample ID 0407222-"j4A <br /> Sample Spiked MS* MSD" MS-MSD' LCS LCSD LCS-LCSD Acceptance Cnteria(%) <br /> lag/L lig/L % Rec %Rec % RPD %Rec % Rec %RPD Law High <br /> TPH(btex)E ND 60 95 2 941 1 17 932 979 492 70 130 <br /> MTBE ND 10 109 111 l 18 108 120 107 70 130 <br /> Benzene ND 10 114 119 422 107 115 7 18 70 130 <br /> Toluene ND 10 112 116 3 47 103 111 8 16 70 130 <br /> Ethylbenzene ND 10 116 113 2 25 109 118 812 70 130 <br /> Xylenes ND 30 100 107 645 963 107 102 70 130 <br /> %SS 113 10 109 109 0 105 107 2 41 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=Matnx 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=100'(M$- MSD)I((MS+MSD)/2) <br /> .MS and/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 matnx 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 sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> anal a content <br /> DHS Certilficatlon No 1644 QA/QC Officer <br />