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' 110 2nd Avenue South ND7 Pacheco,CA 94553-5566 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-795-1622 <br /> 04http Ilwww mccampbell cam E mail mam c mccampbell com <br /> I� <br /> QC SUMMARY REPORT FOR SW8021B18015Cm <br /> Matrix W WorkOrder 0212474 <br /> EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 5501 Spiked Sample ID 0212472-002A <br /> Sample Spiked MS* MSD" MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br />' Compound T�_`— <br /> NgIL pglL %Rec %Rec %RPD %Rec %Rec %RPD Low I High <br /> TPH(gas) ND 60 105 105 0 620 101 993 203 80 120 <br /> MTBE ND 10 103 102 160 943 934 0 898 80 120 <br /> 1 Benzene ND 10 100 998 0 140 977 974 0 291 80 120 <br /> Toluene ND 10 926 91 1 78 101 997 151 80 120 <br />' Ethylbenzene ND 10 962 956 0 642 95 6 959 0 320 80 i 120 <br /> Xylenes ND 30 927 89 4 04 99 3 99 3 0 80 120 <br />' %SS 107 100 995 994 0 134 945 945 0000741 80 120 <br /> All target compounds in the Method Blank ofthis extraction batch were ND less than the method RL with the following exceptions <br />' NONE <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 /> %Recovery=100'(MS Sample)I(Amount Spiked) RPD=100"(MS—MSD)!(MS+MSD)'2 <br /> "MS and 1 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 orb if that specific sample matrix interferes with spike recovery <br />