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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> mpbell Analytical Inc Telephone 925-798-1620 Fax 925-798-162.2 <br /> MCC, <br /> http/1wwwmcc-anipbcllcom E-mail main@mccampbell coni <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix A WorkOrder 0312191 <br /> EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 9625 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(btex)£ NIA 60 N/A N/A N/A 746 73 162 70 130 <br /> MTBE N/A 10 N/A NIA N/A 109 113 3 71 70 130 <br /> Benzene N/A 10 N/A NIA N/A 112 110 l97 70 130 <br /> Toluene N/A 10 N/A NIA NIA I12 Ito 161 70 130 <br /> Ethylbenzene N/A 10 N/A N/A N/A 112 110 200 70 130 <br /> Xylenes N/A 30 N/A N/A N/A 110 110 0 70 130 <br /> %SS NIA 100 N/A N/A NIA 114 112 117 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 /> MS=Matrix Spike MSD=Matrix Spike Duplicate,LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RFD=Relative Percent <br /> Deviation <br /> %Recovery=100'(MS-Sample)/(Amount Spiked) RPD=100'(MS- MSD)1((MS+MSD)12) <br /> 'MS and 1 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 matnx interferes with spike recovery <br /> £TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak ooelutes with surrogate peak <br /> NIA=not enough sample to perform matrix spike and matnx 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 />