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110 2nd Avenue South,#D7,Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http://www rice bell com E-mail mai ca bell earn <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrdar 0310498 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 9161 Spiked Sample ID 0310498-011A <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD ILCS-LCSD Acceptance Criteria <br /> pg/L pg/L %Rec % Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)c ND 60 110 116 542 102 103 0 891 70 ; 130 <br /> MTBE ND 10 113 112 131 822 819 0 439 70 130 <br /> Benzene ND 10 108 106 1 19 898 875 258 70 130 <br /> Toluene ND 10 105 105 0 102 984 360 70 130 <br /> Ethylbenzene Af17 10 115 117 179 110 104 509 70 i 130 <br /> Xylenes ND 30 107 107 0 110 107 308 70 130 <br /> %SS N17 1 100 107 107 0 101 999 0 949 70 130 <br /> All target compounds in the Method Blank ofthis extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> I <br /> MS=Matrix Spike MSD=Wtnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100*(MS-Sample)/(Amount Spiked) RPI]=100*(MS—MSD)1(MS+MSD)*2 <br /> *MS and/or MSD spike recovenes may not be near 100%or the RPDs near 0%,tf 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 wth 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 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 matnx or sample diluted due to high matnx or <br /> anatyte content <br />