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110 2nd Avenue Soiih PD7 Pacheco CA 94.)53 5:,60 <br /> Inc.McCampbell Analytical, Telephone 925 798-1620 Fix 925 798 1622 <br /> Website www mccampbeil coin E-mail mainre nnccampbell coin <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix A WarkOrder 0405299 <br /> EPA Method SW8021BI8015Cm Extraction SW5030B BatchlD 11604 Spiked Sample ID NIA <br /> Sample Spiked MS' MSD* MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg/L %Rec % Rec %RPD %Rec % Rec % RPD Low High <br /> 1131 t(btex)£ NIA 60 NIA NIA � NIA 103 102 115 70 130 <br /> MTBE NIA 10 NIA N/A NIA 110 105 5 17 70 130 <br />' Benzene NIA 10 N/A N/A NIA 106 112 486 70 130 <br /> Toluene NIA t0 N/A N/A N/A 109 102 669 70 130 <br /> Ethylbenzene N/A - 10 NIA NIA NIA 109 114 468 70 130 <br /> Xylenes NIA 30 NIA NIA NIA 100 110 9 52 70 130 <br /> I °/nS5 N/A 10 NIA N/A N/A 979 I 105 7 18 70 130 <br /> All target compounds in the Method Blank of this extraction hatch were ND less than the method RL with the tollowmg exceptions <br /> NOME <br /> 10 <br /> 1 <br />' MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Dev+ation <br /> Recovery=100'(MS Sample)1(Amount Spiked) RPD=100'(MS MSD)I((MS+MSD)12) <br /> MS and/or MSD spike recoveries may not be near 100%or the RPOs near 0%if a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked orb)if that specific sample matrix interferes with spike recovery <br /> £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 matnx spike and matrix spike duplicate <br /> NR=analyte concentration to sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix ar <br /> analyte content <br /> DHS Certification No 1644 QA/QC Citficer <br />