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110 2nd Avenue South,#D7,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http//www incengtielt corn E-mail main@rwcampbell cum <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> 1 <br /> Matrix A WorkOrder 0307436 <br />' EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 7958 Spiked Sample 1D NIA <br /> Sample Spiked MS' MSD' MS-MSD" LCS LCSD CS-LCSD Acceptance Criteria(%) <br />' pg/L pg/L %Rec %Rec %RPD % Rec %Rec %RPD Low High <br /> TPH(btex)£ N/A 60 N/A N/A NIA 103 106 3 19 70 130 <br />' MTBE NIA 10 NEA. NIA NIA 101 981 302 70 130 <br /> Benzene N/A 10 N/A N/A NIA 102 104 230 70 130 <br />' Toluene N/A 10 NIA N/A NIA 962 981 201 70 130 <br /> Ethylbenzene NIA 10 N/A N/A N/A 103 105 183 70 130 <br /> Xylenes NIA 30 N/A NIA N/A 957 997 4 10 70 130 <br />' %SS N/A 100 NIA N/A N/A 98 9 99 0 161 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 /> lie <br /> I <br /> MS=Matrix Spike MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD Relative Percent <br /> Deviation <br /> i <br /> %Recovery=100.(MS-Sample)!(Amount Spiked) RPD=100'(MS—MSD)/(MS+MSD)"2 <br /> `MS and/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 /> anatyte relative to the amount spiked or b)if that specific sample matrix interferes mth spike recovery <br /> • £TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coolutes with surrogate peak <br /> INIA=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 /> I <br />