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110 2nd Avenue South,#D7,Pacheco CA 94553-5560 <br /> ampbell Analytical, Inc <br /> McCTelephone 925-798-1620 Fax 925-798-1622 <br /> httpJlwww mccanVbell com E-mail mainPnircampbell cam <br /> QC SUMMARY REPORT FOR SW8021B18015Cm <br /> Matrix A WorkOrder 0401337 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 10121 Spiked Sample ID NIA <br /> Sample Spiked MS' MSD' MS-MSD' LCS LCSD LOS-LCSD Acceptance Cnlena(%) <br /> pg/L pg/L %Rec % Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)F N/A 60 N/A N/A N/A 882 894 134 70 130 <br /> MTBE NIA 10 N/A NIA NIA 957 991 343 70 130 <br /> Benzene NIA 10 N/A N/A N/A 97 100 306 70 130 <br /> Toluene N/A 10 N/A N/A NIA 999 103 2 90 70 130 <br /> Ethylbenzene N/A 10 N/A N/A NIA 103 106 277 70 130 <br /> Xylenes NIA 30 N/A N/A N/A 107 107 0 70 130 <br /> %SS N/A 10 N/A NIA N/A 108 110 1 05 70 130 <br /> All target compounds to the Method Blank of this extraction bath were ND less than the method RL with the following exceptions <br /> NONE <br /> MS=Matrix Spike MSO=Matrix Spike Duplicate LCS=Laboratory Control Sample LC-SD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100'(MS-Sampte)I(Amount Spiked) RPD=100'(MS- MSD)/((MS+MSD)12) <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 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 /> N/A=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for sail 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 T L— QA/QC Officer <br />