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110 2nd Avenue South tJD7 Pacheco CA 9A553-5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798 1622 <br /> http!/www mccamphell com E-mil m n®mccamphell com <br /> QC SUMMARY REPORT FOR SW$421B1$415Cm <br /> Matrix W WorkOrder 0312209 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 9651 Spiked Sample ID 0312214-001A <br /> Sample Spiked MS" MSD' MS-MSD LCS LCSD LCS-LCSD Acceptance Catena(%) <br /> pg/L pg/L % Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btcx)£ ND 60 96 892 725 929 963 364 70 130 <br /> MTBE ND 10 101 88 136 116 114 141 70 130 <br /> Benzene ND 10 98 6 887 10 6 101 111 979 70 130 <br /> Toluene Nle 10 103 915 11 6 104 112 729 70 130 <br /> Ethylbenzene ND 10 105 89 4 160 110 111 105 70 130 <br /> Xylenes ND 30 t07 90 169 110 110 0 70 130 <br /> %SS 975 100 t02 927 995 111 113 2 14 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 MSR=Matrix Spike Duplicate LCS=laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100'(MS-Sample)/(Amount Spiked) RPD=100`(MS- MSD)I((MS+MSD)!2) <br /> MS and I or MSD spike recoveries may not be near 100%or the RPDs near 0%it 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 /> 9 cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=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 matrix or sample diluted due to high matnx or <br /> analyte content <br />