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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 />' http/1wwwniccarnpbeUcorn E-mail nuun@mccampbellcurn - <br /> QC SUMMARY REPORT FOR SW8021B18015Cm <br /> Matrix A WorkOrder 0209183 <br /> EPA Method SW8021 B1801SCm Extraction SW6030B BatchlD 3946 Spiked Sample ID 0209179-004A <br /> Sample Spiked MS' MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Catena(%) <br /> Compound <br /> pg/L pglL % Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 975 100 267 109 112 285 80 120 <br /> MTBE ND 10 907 868 439 988 907 854 80 120 <br /> Benzene ND t0 958 963 0 575 101 934 772 80 120 <br /> Toluene ND 10 102 103 0 520 I03 96 723 80 120 <br /> Ethylbenzene ND 10 105 106 0 656 104 956 875 80 120 <br /> Xylenes ND 30 103 107 3 17 103 993 395 80 120 <br /> %SS 101 100 985 984 0 155 952 885 728 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 /> lie <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 /> I %Recovery=100'(MS-Sample)I(Amount Spiked),RPD=100'(MS—MSD)I(MS+MSD)'2 <br /> III '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 reiahve to the amounts eked orb)if that s ecific sam !e matrix interferes with spike recovery <br />