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110 2nd Avenue South ND7 Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798 1620 Fax 925 798-1622 <br /> http Ilwww mccampbell corn E-mail matnQmccamgbell com` r <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0212181 <br /> EPA Method SW8021 Bl8015Cm Extraction SW5030B BatchlD 5249 Spiked Sample ID 0212176-001A <br /> Compound Sample Spiked MS- MSD- MS-MSD- LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pglL pglL % Ret; %Rec %RPD %ReC %Rec %RPD Low High <br /> TPH(gas) ND 60 984 995 1 08 111 111 0 300 80 120 <br /> ' MTBE ND 10 908 974 696 949 104 934 80 120 <br /> Benzene ND 10 996 95 9 3 74 106 104 197 80 120 <br /> Toluene ND 10 927 89 3 3 80 110 108 135 80 120 <br /> ' Ethylbenzene ND 10 96 93 3 279 108 106 1 80 80 T120 <br /> Xylenes 082 30 899 85 9 441 113 110 299 80 120 <br /> ' %SS 103 100 102 965 575 909 904 0 512 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 /> 1 <br /> MS=Matrix Spike,MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> 10 <br /> Deviation <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 />' analyte content <br /> Recovery=100'(MS Sample)1(Amount Spiked) RPD=100'(MS—MSD)!(MS+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 concentrations of <br />' analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br />