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' 110 2nd Avenue South,/1D7 Pacheco CA 94553-5560 <br /> McCampbeli Analytical Inc Telephone 925-798-1620 Fax 925-799-1622 <br />' hitp 1/www mecamphell corn $-mail —n(&mccampbell com <br /> . QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> 1 <br /> Matn x W WorkOrder 0312192 <br />' EPA Method SW8021 B/801 SCrn Extraction SW5030B BatchlD 9625 Spiked Sample 1D 0312190-015A <br /> Sample Spiked MS* MSD` MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> 1pg/L Pg/L % Rec %Rec °/b RPD %Rec %Rec %RPD Low Nigh <br /> TPH(btex)£ ND 60 961 989 279 746 73 162 70 130 <br />' <br /> MTBE ND 10 111 114 284 109 113 371 70 130 <br /> Benzene 175 10 108 107 0 655 112 110 197 70 130 <br /> Toluene ND 10 111 112 03% 112 110 161 70 130 <br />' Ethylbenzene ND 10 109 110 0 955 112 110 200 70 130 <br /> Xylenes ND 30 110 110 0 110 110 0 70 130 <br />' 0/o3S 104 100 115 113 154 114 112 117 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 /> I <br /> I <br /> 1 <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 /> %Recovery=100*(MS-Sample)I(Amount Spiked) RAD=100*(MS- MSD)I((MS+MSD)12) <br />' *MS and I or MSD spike recoveries may not be near t 00%or the RPDs near 0%it a)the sample is inhomogenous AND contains significant concentrabons 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 /> i9 duttered 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 matrix or <br /> [NR <br /> content <br />