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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> ::CMcCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> L— http//www nriccampbell corn E mal nim@mccanipbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015 m <br /> C <br /> Matrix A WorkOrder 0304255 <br /> EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 6591 Spiked Sample ID 0304263-007A <br /> Compound Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Ng/L pg/L. %Rec %ReC % RPD %Rec % Rec %RPD Low High <br /> TPH(btex) ND 60 I00 A62 <br /> 146 101 102 10816 80 120 <br />' MTBE ND 10 103 EI <br /> 2 101 104 290 80 120 <br /> Benzene ND 10 975 6 959 958 0 151 80 120 <br />' Toluene ND ]0 101 999 0 790 100 997 0 603 80 120 <br /> Ethylbenzene ND 10 101 100 0 440 101 100 1 19 80 120 <br /> Xylenes ENDED 30 107 107 E354 <br /> 107 103 317 80 120 <br /> %SS 100 984 98 96 8 1 985 1 79 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 /> lie <br /> 1 <br /> MS=Matrix Spike Iv1SQ=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate,RPD=Relative Percent <br /> Deviation <br /> %Recovery=100*(MS Sample)1(Amount Spiked) RPD=100*(MS-MSD)/(MS+MSD)*2 <br /> 'MS and 1 or MSD spike recoveries may not be near 100%or the RP Ds near 0%if a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)d 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 matnx spike and matrix spike duplicate <br /> NR=analyte concentration en sample exceeds spike amount for sod matrix or exceeds 2x spike amount forwater matrix or sample diluted due to high matrix or <br /> Ianal a content <br />