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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 />' 144 http//www mccampbell coin E-mail main@mccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0304329 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 6640 Spiked Sample ID 0304323-004A <br /> Compound Sample Spiked MS* MSD- MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br />' Pg/L lig/L %Rec %Rec % RPD %Rec %Rec % RPD Low High <br /> TPH(btex)£ ND 60 106 104 165 108 108 0 80 120 <br />' MTBE 7 901 10 834 902 410 996 948 390 80 120 <br /> Benzene ND 10 lot 105 3 85 994 995 0 128 80 120 <br /> Toluene ND 10 935 965 3 17 928 92 3 0 614 80 120 <br />' Ethylbenzene ND 10 103 105 238 102 102 0 80 120 <br /> Xylenes ND 30 967 L00 339 96 7 967 0 80120 <br /> I %SS 102 100 103 105 1 87 993 99 l 0192 80 120 <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 /> i <br /> I <br /> I 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)1(Amount Spiked),RPD=100"(MS—MSD)/(MS+MSD)'2 <br /> I "MS and!or MSD spike recoveries may not be near 100%or the BPDs near 0%of a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that specaflc sample matrix interferes with spike recovery <br /> oil £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 sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br />