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1 <br /> a <br /> Inc. <br /> 110 2nd Avenues uth,#D7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical; Inc. Telepbone:925-798-1620 Fax:925-798-1622 <br /> Website:www.mccarrrpbell.com E-mail:mainQmccampbell.com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> 1 Matrix: A WorkOrder: 0406370 <br /> EPA Method: SW8021B/8015Cm Extraction: SW5030B BatchlD:12073, Spiked Sample ID: N/A <br /> Sample Spiked 'MS' MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg/L %Rec. %Rec. %RPD %Rec. %Rec. %RPD Low High <br /> TPH(b[ex)e N/A 60 N/A N/A N/A 96.7 96.1. 0.669 '70 130 <br /> MTBE N/A 10 N/A N/A N/A 108 106 1.85 70 130 <br /> Benzene N/A 10 N/A N/A N/A 109 107 1.10 70 130 <br /> Toluene N/A 10 N/A N/A N/A 103 102. 1:36 70 130 <br /> Ethylbenzene N/A 10 N/A N/A N/A 107 107 0 70 130 <br /> Xylenes N/A 30 N/A N/A N/A 95 95 0 70 130 <br /> %SS: N/A 10 N/A N/A N/A 105 104 1.44 70 130 <br /> r <br /> rget compounds in the Method Blank ofthis extraction batch were ND less than the method RL with the following exceptions: <br /> E <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)/2). <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 STEX areas from the FID. <br /> #cluttered chromatogram;sample peak coelutes with surrogate peak. . <br /> i <br /> N/A=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 matrix or <br /> analyte content. <br /> DHS Certification No. 1644 QA/QC Officer <br /> H � <br />