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110 2nd Avenue South ND7 Pacheco CA 94553-5560 <br /> McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925 798-1622 <br /> 20 Website www mccampbcll coni E-mail main®mecampbell cam <br /> . QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0405340 <br /> EPA Method SW8021B/8015Cm Extrachon SW50306 BatchlD 11609 Spiked Sample ID 0405334-002A <br /> Sample Spiked MS* MSD* MS-MSD' LCS LCSD !LCS-LCSD Acceptance Catena(%) <br /> 'NgfL NgIL %Rec %Rec % RPD %Rec % Rec % RPD Low -High = <br /> TPH(btex)f NI) 60 864 89 1 308 106 103 304 70 130 <br /> MTBE ND 10 90 117 25 S 105 106 139 70 130 <br /> Benzene ND 10 914 925 1 19 106 108 119 70 130 <br /> Toluene ND 10 919 93 8 200 107 107 0 70 130 <br /> Ethylbenzene ND 10 929 957 2 93 110 110 0 70 130 <br /> _ Xylenes ND 30 943 957 140 100 100 0 70 130 <br /> %SS 82 6 10 85 2 841 1 30 102 103 0 775 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=100'(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 perforin 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 /> DHS Certification No 1644 QA/QC Officer <br />