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110 2nd Avenue South 41D7 Pacheco CA 94553-5560 <br /> McCampbelZ Analytical Inc i Telephone 925-798-1620 Fax 925-798-1622 <br /> http 1/www mecampbell coin Email mainr mccampbell coin <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0208287 <br />' EPA Method SW8021 13/8015Cm Extraction SW5030B BatchlD 3523 Spiked Sample ID N/A <br /> Sample Spiked MS* MSD* IMS-MSD" LCS j LCSD !LCS-LCSDIAcceptance Cntena(%) <br /> Compound <br /> Pg/L pg/L _ % Rec % Rec %RPD %Rec % Rec %° RPD Low- -High <br /> TPI1(gas) N/A i 60 N/A N/A N/A 976 106—j 785 1 80 i 120 <br /> MTBE N/A 10 N/A N/A N/A 81 3 916 119 1 80 -- 120 <br />' Benzene N/A 10 N/A N/A N/A 96 104 802 80 120 <br /> Toluene N/A 10 N/A N/A N/A 109 115 556 80 120 <br />' Ethylbenzene _ N/A 14 N/A N/A N/A 1 104 112 805 80 120 <br /> Xylenes N/A 30 N/A N/A N/A 107 110 308 80 11 120 <br /> I <br />' %55 N/A L00 N/A _ NIA NIA I 105 107 � E23 I 80 IZO <br /> All target compounds in the Method Blank ofthis extraction batch were ND less than the method RL with the following exceptions <br /> I NONE <br /> I <br /> I <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <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 matrix or <br />' analyte content <br /> %Recovery=100'(MS-Sample)/(Amount Spiked),RPD=100"(MS-MSD)/(MS+MSD)'2 <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 s ike recove <br />