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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> r A# MCCampbeld Analytical Inc Telephone 925-799-1620 Fax 925-798-1622 <br /> http llwww mccampbell com E mml maul[Qmccarnpbell corn <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> BatchlD 2193 Matrix W WorkOrder 0205439 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B Ext Date 5131/02 Spiked Sample ID N/A <br /> Compound 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(gas) N/A 60 N/A N/A N/A 979 933 0 80 120 <br /> MTBE N/A to N/A NIA N/A 815 828 200 80 120 <br /> Benzene N/A 10 N/A N/A N/A 91 964 200 80 120 <br /> Toluene N/A 10 N/A NIA N/A 100 106 200 80 120 <br /> Ethylbenzene NIA 10 N/A N/A NIA 986 103 200 80 120 <br /> Xylenes N/A 30 N/A N/A N/A 103 103 200 80 120 <br />' %SS N/A 10 N/A N/A N/A 104 108 026 80 120 <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 /> 10 <br /> MS=Matra Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> NIA=not enough sample to perform matrix spike,or analyte concentration in sample exceeds spike amount <br /> %Recovery=100*(MS-Sample)/(Amount Spiked) RPD=100`(MS—MSD)1(MS+MSD)*2 <br /> 0 *MS and/or MSD spike recoveries may not be near 100%or their BPDs near 0%if a)the sample is inhomogeneous AND contains signifcant concentrations of <br /> analyze relative to the amount spiked,or b)rf that specific sample matnx interferes with spike recovery <br /> I <br />