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110 211d A%enue South,#D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical, Inc. Telephone 925-798 1620 Fax 925 798-1622 <br /> 64 1 Website www mccampbell com E-mail main®mecampbell corn <br /> . QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> I <br /> W O Sample Matrix Air QC Matrix Water WorkOrder 0411074 <br />' EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 13824 Spiked Sample ID 0411055-006A <br /> Analyte Sample Spiked MS* MSD* MS-MSD' LCS LCSD LCS-LCSD Acceptance Crhena(%) <br /> pg/L pg1L % Rec % Rec %RPD %Rec %Rec I %RPD Low High <br />' TPH(btex)£ ND 60 88 1 863 2 18 97 9 973 0 581 70 130 <br /> MTBE ND 10 882 882 0 98 2 97 l 18 70 130 <br />' Benzene ND 10 872 894 2 52 108 105 303 70 130 <br /> Toluene ND 10 86 8 899 3 42 102 99 329 70 130 <br />' Ethylbenzene ND 10 999 922 2 57 105 102 292 70 130 <br /> I <br /> Xylenes ND 30 903 943 4 33 91 7 907 1 10 70 ! 130 <br />' %SS 103 10 96 97 127 112 110 1 19 70 130 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the tollowing exceptions <br /> I NONE <br /> 1 • <br /> 1 <br /> 1 <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)/(Amount Spiked) RPD=100*(MS- MSD)1((MS+MSD)12) <br /> MS/MSD spike recoveries and 1 or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is <br /> Inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample's matrix Interferes with the spike recovery <br /> £TPH(btex)=sum of STEX areas from the FID <br />' #cluttered chromatogram sample peak coelutes with surrogate peak <br /> N/A=not enough sample to perform matrix spike and matrix spike dupticate <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 />' analyto content <br /> DHS Certification No 1644 A/QC Officer <br /> 1 <br />