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I 10 2nd Avenue South PD7 Ncheco CA 94553-5560 <br /> ^' M cCampbell Analytical, Inc. felcpllone 925-798-1620 Fax 925-798 1622 <br />' Websne %mw mccampbell cons I mad main @0 mcc-impbell coin <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W Workbrder 0405315 <br /> i <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B Batchlp 11609 Spiked Sample ID 0405334-002A <br /> Sample Spiked MS* MSD* MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pglL _ pg/L % Rec %Rec %RPD %Rec % Rec %RPD Low High <br /> TPH(btex)£ ND 60 864 89 1 308 106 103 104 70 130 <br /> MTBE ND 10 90 117 1 25 8 105 106 t 39 70 130 <br />' Benzene ND 10 91 4 925 1 19 106 108 159 70 130 <br /> Toluene ND 10 91 9 938 2 00 107 107 0 70 130 <br />' Ethvlbenzene ND 10 92 9 95 7 2 93 110 Ito 0 70 130 <br /> Xvlene,, ND 30 94 3 95 7 1 40 100 100 0 70 130 <br /> %SS 826 10 85 2 84 1 13o 102 103 0 775 70 130 <br /> All taiget compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONF <br /> 1 <br />' MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=too*(MS-Sample)I(Amount Spiked) RPD=100'(MS- MSD)1((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 /> NIA=not applicable or not enough sample to perform matnx 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 />' anaiyte content <br /> DHS Certification No 1644 QA/QC Officer <br />