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110 2nd Avenue South,i1D7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical IT1c Telephone 925-798-1620 Fax 925-798 1622 <br />' httn.11wwvv mcca bell com E mail matn@mccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0306567 <br />' EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 7550 Spiked Sample ID 0306567-017A <br /> Sampfe Spiked MS* MSD* IMS-MSD- LCS I LCSD LCS-LCSD Acceptance Criteria(%) <br /> i <br />' pg/L pg/L %Rec % Rec %RPD %Rec % Rec % RPD LOw High <br /> TPH(btex)f ND 60 998 100 0 301 100 100 0 70 130 <br />' MTBE ND 10 906 91 1 0 471 87 856 1 61 70 130 <br /> Benzene ND 10 86 9 878 0 946 868 871 0 276 70 130 <br /> Toluene ND 10 96 5 976 1 16 964 968 0 409 70 130 <br />' Ethylbenzene ND 10 104 106 130 105 105 0 70 130 <br /> Xylenes ND30 107 107 0 107 107 0 70 130 <br />' %S5 105 100 101 101 0 102 102 0 70 130 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br />' NONE <br /> lie <br /> 1 <br /> I <br /> MS=Matrix Spike MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratcry 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%,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 wth spike recovery <br /> £TP9(btex)=sum of BTEX areas from the FID <br /> #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 matrix or <br /> analyte content <br />