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110 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> Inc.McCampbell Analytical, ITelephone 925-798-1620 Fax 925-798 1622 <br /> Website www mecantpbell com E-mail nram@mecampbell corn <br /> QC SUMMARY REPORT FOR SW8021B18015Cm <br /> W O Sample Matrix Water QC Matrix Water WorkOrder 0412516 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 14469 Spiked Sample ID 0412516-001A <br /> Sample Spiked MS' MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Cntena(%) <br /> Analyte <br /> lig/l. pglL %Rec % Rec % RPD % Rec % Rec % RPD MS 1 MSD LCS I LCSD <br /> TPII(btex)£ ND 60 986 979 0 691 94 952 1 36 70- 130 70- 130 <br /> MTBE ND 10 101 91 9 907 105 879 178 70-130 70-130 <br /> Benzene ND 10 103 108 4 83 110 943 15 8 70- 130 70- 130 <br /> Toluene ND 10 102 107 4 60 103 894 15 4 70- 130 70-130 <br /> Ethylbenzene ND 10 105 107 183 lit 992 110 70-130 70- 130 <br /> Xylenes ND 30 917 95 3 3 92 103 96 736 70- 130 70- 130 <br /> %SS 98 10 110 113 223 113 101 11 7 70- 130 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)/(Amount Spiked) RPD=100'(MS- MSD)/((MS+MSD)12) <br /> MS 1 MSD spike recoveries and/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 <br /> 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 matnx 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 />