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110 2nd Avenue South #D7 Pacheco,CA 94553-5560 <br /> McCarnpbell Analytical Inc Telephone 925-798-1620 Fax 925-798 1622 <br /> h /Iwww mec bell com E mail main@mccatiapbell corn <br /> QC SUMMARY REPORT FOR SW8021B18015Cm <br /> Matrix A WorkOrder 0309220 <br /> EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 8502 Spiked Sample ID NIA <br /> s <br /> Sample Spiked MS- MSD* MS-MSD- LCS LCSD ILCS-LCSD Acceptance Criteria (%) <br /> pgIL pg& %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)£ NIA 60 NIA N/A N/A 96 8 983 154 70 130 <br /> MTBE NIA 10 NIA N/A NIA 96 1 946 1 57 70 130 <br /> Benzene NIA 10 NIA NIA N/A 962 984 227 70 130 <br /> Toluene NIA t0 NIA NIA NIA 97 1 98 9 1 88 70 130 <br /> Ethylbenzene NIA 10 NIA NIA NIA 98 1 101 250 70 130 <br /> Xylenes NIA 30 NIA NIA NIA 100 100 0 70 130 <br /> %SS NIA t00 N/A N/A NIA 102 103 1 84 70 130 <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 /> I <br /> 1 <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br />' Deviation <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 relative to the amount spiked or b)if that specific sample mafnx interferes with spike recovery <br /> E TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount tot sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyto lontent <br />