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i <br /> 1102nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http Rwww mccampbell com E mdd main ril nccampbell corn <br /> . QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0306423 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 7449 Spiked Sample ID 0306423-004A <br /> Sample Spiked MS' MSD' MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Ipg/L pgIL %Rec %Rec % RPD % Rec % Rec %RPD Low High <br /> TPH(btex)£ ND 60 97 5 946 3 27 109 109 0 70 130 <br /> MTBE ND 10 97 5 979 186 989 98 1 0 845 70 130 <br /> Benzene ND 10 943 926 263 993 988 0 562 70 130 <br /> Toluene ND 10 94 8 939 294 106 107 0 817 70 130 <br /> IEthylbenzene ND AO 97 8 96 260 102 101 148 70 130 <br /> Xylenes ND 30 100 997 0 334 107 107 0 70 130 <br /> I %SS 101 100 988 999 0 569 97 6 98 8 123 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 /> I <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 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 matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for soil matnx or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> anal a content <br />