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110 2nd Avenue South 3D7,Pacheco CA 94553 5560 <br /> McCaIripbell Analyt><cal Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> ltltpJ/www mec bell corn E mad mom mccampbell com <br /> QC SUMMARY REPORT FOR SW8021BI801SCm <br /> Matrix A WorkOrder 0305252 <br /> EPA Method SW8021B/8015Cm Extraction SW50306 BatchlD 6929 Spiked Sample ID N/A <br /> Sample Spiked MS" MSD* MS-MSD- LCS LCSD LCS-LCSD Acceptance Criteria(%} <br /> Compound <br /> pg/L pg/L %Rec %Rec %RPD %Rec % Rec I %RPD Law High <br /> TPH(btex)F N/A 60 N/A N/A N/A 987 982 0 483 70 130 <br /> MTBE N/A 10 N/A N/A N/A 978 966 1 19 70 130 <br /> Benzene N/A to N/A N/A NIA 958 93 4 262 70 130 <br /> Toluene N/A 10 N/A N/A N/A 101 97 6 3 16 70 130 <br /> Ethylbenzene N/A 10 NIA NIA N/A 99 1 98 3 0 856 70 130 <br /> Xylenes N/A 30 N/A NIA NIA 103 100 329 70 130 <br /> %SS N/A 100 NIA N/A N/A 100 100 0 80 120 <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 /> 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 1 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 /> 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 matnx 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 matnx or <br /> analyto content <br />