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I110 2nd Avenue South #D7 Pacbeco,CA 94551-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell cam E-mail mam@mecampbe])com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0309526 <br /> EPA Method SW8021 B18015Cm Extraction SW5030B BatchlD 8819 Spiked Sample ID 0310074-007A <br /> Sample Spiked MS* MSD' MS-MSD LCS LCSD LCS-LCSD Acceptance Catena(%) <br /> pglL pg/L % Rec %Rec %RPD ec %RPD Low High <br /> TPH(btex)£ ND 60 104 104 0 104 103 156 70 130 <br /> MTBE ND 10 106 100 574 989 103 367 70 130 <br /> Benzene ND 10E13 <br /> 109 3 60 103 104 117 70 130 <br /> Toluene ND 10111 227 104 105 0 734 70 130 <br /> Ethylbenzene ND 10112 217 106 106 0 70 130 <br /> Xylenes ND 30 117 113 290 110 107 3 08 70 130 <br /> %SS 107 100 105 104 152 102 104 1 58 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 /> I <br /> I <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*(RAS—MSD)!(MS+MSD)*2 <br /> *MS and/or MSD spike recoveries may not be near 100%or the RPDs near 4%it 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 /> ft cluttered chromatogram sample peak coelules with surrogate peak <br /> NIA=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 2x spike amount for water matrix or sample diluted due to high matnx or <br /> analyte content <br />