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110 2nd Avenue South,4D7,Pacheco,CA 94553-5560 <br /> MCCarnpbell Analytical Inc. Telephone:925-798-1620 Fax:925-798-1622 <br /> http://www.mcrampbell.corn E-mail:main@mccampbell.com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> BatchlD:2264 Matrix:W WorkOrder. 0206031 <br /> ' EPA Method: SW8021618015Cm Extraction: SW50308 Ext. Date: 6104102 Spiked Sample ID: N/A <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> ' Ng/L pg/L % Rec. %Rec. %RPD %Rec. %Rec. %RPD Low High <br /> TPH(gas) N/A 60 NIA N/A NIA 103 102 0.57 80 120 <br /> ' MTBE N/A 10 NIA NIA N/A 93.9 97.6 3.9 80 120 <br /> Benzene N/A 10 N/A NIA NIA 112 107 4.4 80 120 <br /> Toluene N/A 10 N/A N/A N/A 113 107 4.6 80 120 <br /> ' Ethylbenzene NIA to NIA N/A NIA 114 109 4.7 80 120 <br /> Xylenes - NIA 30 N/A N/A N/A 110 110 0 80 120 <br /> ' %SS NIA 10 NIA NIA N/A 102 99.5 3.0 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 /> 1 <br /> MS=Matrix Spike;MSD=Matrix Spike Duplicate;LCS=Laboratory Control Sample;LCSD=Laboratory Control Sample Duplicate;RPD=Relative Percent <br /> Deviation. <br /> N/A=not enough sample to perform matrix spike,or analyte concentration in sample exceeds spike amount. <br /> ' %Recovery=Ill*(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 their RPDs near 0%it..a)the sample is inhomogeneous AND contains significant concentrations of <br /> analyze relative to the amount spiked,or b)if that specific sample matrix interferes with spike recovery. <br /> 1 <br />