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November 13, 2002 Lab ID : STK235627 <br /> Victor Goehring Customer : 3-14825 <br /> Quality Control - Organic <br /> Constituent Method Date/1D Type Units Conc. QC Data DQO Note <br /> DBCP 504.1 11/08/2002:A203 Blank ug/L ND <0.01 <br /> LCS ug/L 0.2941 94.6% 70-130 <br /> BS ug/L 0.2941 90.6% 70-130 <br /> BSD ug/L 0.2941 94.4% 70-130 <br /> BSRPD ug/L 4.1% :530 <br /> 504.1 11/08/2002:13 02-CCV ug/L 5.015 103% 70-130 <br /> 03-CCV ug/L 5.000 104% 70-130 <br /> 1,3-Dibromopropme-Surrogate 504.1 I1/08/2002:A203 Blank ug/L 0.5882 100% 70-130 <br /> LCS ug/L 0.5882 105% 70-130 <br /> BS ug/L 0.5882 100% 70-130 <br /> BSD ug/L 0.5882 104% 70-130 <br /> 504.1 11/08/2002:B 02-CCV ug/L 10.00 111% 70-130 <br /> 03-CCV ug/L 10.00 112% 70-130 <br /> Definitions <br /> Blank Method Blank - Prepared to verify that the preparation process is not contributing contamination to the samples. <br /> LCS Laboratory Control Standard/Sample - Prepared to verify that the preparation process is not affecting analyte <br /> recovery. <br /> MS/MSD Matrix Spikes - A random sample is spiked with a known amount of analyte. The recoveries are an indication o <br /> how that sample matrix affects analyte recovery. <br /> BS/BSD Blank Spikes - A blank is spiked with a known amount of analyte. It is prepared to verify that the preparation <br /> process is not affecting analyte recovery. <br /> CCB Continuing Calibration Blank - Analyzed to verify the instrument baseline is within criteria. <br /> CCV Continuing Calibration Verification - Analyzed to verify the instrument calibration is within criteria. <br /> ND Non-detect - Result was below the DQO listed for the analyte. <br /> DQO Dara Quality Objective - This is the criteria against which the quality control data is compared. <br /> STK235627: Quality Control Page 2 <br />