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1 <br /> 110 2nd Avenue South #D7,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798-1622 <br />' http//www mccampbell com E mail inam c bell cum — <br /> • QC SUMMARY REPORT FOR SW8021B/801SCm <br /> Matrix W WorkOrder 0305254 <br />' EPA Method SW8021 B18015Cm Extraction SW5030B BatchlD 6935 Spiked Sample ID 0305262-007A <br /> Sample Spiked MS' MSD" MS-MSD" LCS Lr-S0 !L -LCSD Acceptance Critena(%) <br /> Compound <br /> pglL pglL % Ree %Rec %RPD %Rec %Rec % RPD Low High <br /> TPH(btex) ND 60 96 1 956 0 522 977 969 0 824 70 130 <br />' MTBE ND 10 969 101 4 11 91 9 941 242 70 130 <br /> Benzene ND 10 91 9 93 6 1 78 92 7 91 5 1 35 70 130 <br />' Toluene ND 10 97 973 0 285 964 95 9 0 598 70 130 <br /> Ethylbenzene ND 10 96 2 97 6 138 983 957 2 66 70 130 <br /> Xylenes ND 30 100 100 0 103 100 3 28 70 130 <br />' %SS 100 l00 98 7 99 6 0 854 981 97 6 0 599 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 /> M5=Matrix Spike,MSD=Matrix Spike Duplicate LOS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100•(MS-Sample)/(Amount Spiked) RPD=100"(MS—MSD)1(IVIS+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 concenlrations 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 /> I #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 sod matnx or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br />