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110 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc L. Telephone 925-798-1620 Fax 925-798-1622 <br />' http 1/www mccampbell corn E-mail main(dmccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0212433 <br /> EPA Method SW8021 B/8015Cm Extraction SW5030B BatchiD 5473 Spiked Sample ID NIA <br /> Sample Spiked AAS' MSD' MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(°�} <br /> Compound <br />' }lg/L pg/L % REG %RBC %RPD %Rec %Rec %RPD Low High <br /> TPB(gas) N/A 60 N/A N/A N/A 107 102 523 80 120 <br /> MTBE N/A 10 N/A N/A N/A 104 878 168 80 —120 <br /> Benzene N/A 10 N/A N/A N/A 110 949 143 80 120 <br /> Toluene N/A 10 N/A NIA N/A 103 954 738 80 120 <br />' Ethylbenzene N/A 10 N/A N/A N/A 106 96 2 938 80 120 <br /> Xylenes N/A 30 N/A N/A NIA 103 93 3 102 80 120 <br /> %SS NIA 100 N/A N/A N/A 107 992 751 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 /> 1 <br /> 1 <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sampte Duplicate,RPD=Relative Percent <br />' Deviation <br /> NIA=not enough sample to perforin 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)/(Amount Spiked) RPD=100•(MS—MSD)/(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 amounts eked or b)if that spMfic sample matrix interferes with spike recovery <br />