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' 110 2nd Avenue South,IlD7 Pacheco CA 94553-5560 <br /> F47McCampbell Analytical Inc Telephone 925-798-1620 Fax 925 798-1622 <br /> http//www mccampbell com E-mail main@mccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0210003 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 4215 Spiked Sample ID NIA <br /> Sample Spiked MS' MSD- MS-MSD' LCS LCSD LCS-LCSD Acceptance Critena(%} <br /> Compound <br /> pg/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) N/A 60 NIA NIA NIA 101 102 135 80 120 <br /> ' MTBE NIA 10 NIA N/A NIA 946 924 237 80 120 <br /> Benzene NIA 10 NIA NIA NIA 957 955 0 175 80 120 <br /> Toluene N/A 10 NIA NIA NIA 978 977 0 138 80 t20 <br /> Ethylbenzene NIA 10 N/A NIA NIA 985 956 303 80 120 <br /> Xylenes NIA 30 N/A NIA NIA 100 100 0 80 120 <br /> ' %SS NIA 100 N/A NIA N/A 889 892 0 437 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 /> Ile <br /> i <br /> 1 <br /> 1 <br /> i <br /> 1 <br /> 1 <br /> MS=Matrix Spike,MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> 1 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 2c 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%it a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amountspiked or b)if that specific sample matrix interferes with spike recovery <br />