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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 I/www mccampbell cum E mail mamQmccampbell corn <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matnx W WorkOrder 0208316 <br /> EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 3574 Spiked Sample ID N/A <br /> Sample Spiked IVIS' MSD` MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> pg/L Ng/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) N/A 60 NIA NIA NIA 87 1 937 739 80 120 <br /> MTBE NIA 10 NIA N/A N/A 802 906 0 502 80 120 <br /> Benzene N/A 10 NIA NIA NIA 87 864 0 769 80 120 <br /> Toluene NIA 10 NIA NIA NIA 91 6 934 1 95 J 80` 120 <br /> Ethylbenzene � N/A 10 N/A NIA N/A 959 959 0 108 80 120 <br /> Xylenes NIA 30 NIA N/A N/A 95 95 0 80 120 <br /> %SS N/A 100 NIA NIA NIA 999 100 0 492 '80 l20 <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 /> 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 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)I(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 retabve to the amountspiked,or b)if that specific sample matrix interferes with spike recovery <br />