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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical, Inc. Telephone 925 798-1620 Fax 925-798 1622 <br /> Website www mccampbeO corn 1;-mall mauiQmccampbell com <br /> QC SUMMARY REPORT FOR 6020A <br /> BATCH 15745 SUMMARY <br /> Sample ID Date Sampled Date Extracted Date Analyzed Sample ID Date Sampled Date Extracted Date Analyzed <br /> 0504049-001A 4101!05 4/05/05 4/07/05 9 15 AM 0504049-OOIA 4101/05 4105105 4107/05 9 24 AM <br /> 0504049-OOIA 4/01/05 4/05105 4/09/05 3 48 AM 0504049-OOIA 4101105 4105105 4118/05 1 08 PM <br /> 0504049-008A 4101105 4/05/05 4/13105 11 18 AM 0504049-008A 4/01/05 4105105 4113/05 11 27 AM <br /> 0504049-008A 4/01/05 4/05105 4/13/05 7 22 PM <br /> • <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate,RPD=Relative Percent Deviation <br /> %Recovery=100'(MS-Sample)/(Amount Spiked) RPD=100'(MS- MSD)/((MS+MSD)/2) <br /> M5 I MSD spike recoveries and 1 or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is inhomogenous <br /> AND contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample's matrix interferes with the spike recovery <br /> NIA=not applicable to this method <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 analyte <br /> content <br /> DHS Certlficatt>onNo 1644 QA/QC Officer <br />