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Inc10 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical, InTelephone 925-798-1620 Fax 925-798-1622 <br /> http/lwww inccarripbell coin L mail mam mecampbell corn <br /> . QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix S WorkOrder 0401260 <br /> EPA Method SW8021 B18015Cm Extraction SW5030B BatchlD 10068 Spiked Sample ID 0401263-002A <br /> Sample Spiked MS' MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria <br /> mg/Kg mg/Kg % Rec %Rec %RPD % Rec % Rec %RPD Low High <br /> TPH(btex)£ 0 13 060 932 825 0 678 932 117 225 70 130 <br /> MTBE ND 010 878 893 1 69 93 7 944 0 694 70 130 <br /> Benzene ND 010 98 101 2 54 106 101 420 70 130 <br /> Toluene ND 010 86 9 88 6 195 93 7 925 1 26 70 130 <br /> Ethylbenzene ND 010 105 107 222 113 109 3 48 70 130 <br /> Xylenes ND 030 100 997 0 334 100 100 0 70 130 <br /> %SS 898 0 10 108 Ill 274 116 112 3 51 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 /> • <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)/(Amount Spiked) RPD=100'(MS- MSD)I((MS+MSD)/2) <br /> 'MS and 1 or MSD spike recoveries may not be near 100%v or the RPDs near 0%n if a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br /> £TPH(btex)=sum of STEX areas from the FID <br /> #Guttered 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 for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br /> DHS Certification No 1644 �I�-QA/QC Officer <br />