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Lab ID STK734959 <br /> June 21, 2007 <br />� Customer 3-957 <br /> Fj <br /> Neil Anderson & Associates <br /> : <br /> Quality Control - Organic <br /> I <br /> Constituent Method Date/ID Type Units Cone. QC Data DQO Note <br /> DBCF 504.1 06115120D7:A203 Blank ug/L <br /> ND <0.01 <br /> LCS uglL 0.2949 47.9 70-130 <br /> F, BS ug/L 0.2949 95.9% 70-130 <br /> BSD uglL 0.2949 99.3°k 70130 <br /> BSRPD ug/L 3.5% <_30 <br /> 504.1 0611512007:A 00-CCV ug/L 5.000 102% 70-130 <br /> 1,3-Dibromopropane-Surrogate 504.1 0611512007:A203 Blank ug <br /> /L 0.5868 101% 70-130 <br /> LCS ug/L 0.5868 104010 70-130 <br /> BS ug/L 0.5868 118% 70-130 <br /> BSD ug/L 0.5868 123% 70-130 <br /> 4 504.1 06/1512007:A 00-CCV ug/L 9.975 93.9 , 70-130 <br /> !I 504.1 06/15/2007:A203 Blank uglL ND <0.02 <br /> I EDB LCS ug/L 0.2949 115% 70-130 <br /> r BS ug/L 0.2949 112% 70-130 <br /> SSD uglL 0.2949 116% 70'300 <br /> 7^ BSRPD ug/L 2,9% <br /> 504. 6/15/2007:A 1 000-CCV ug/L 5.000 125% 70-130 <br /> Definitions <br /> y Blank Method Blank - Prepared to verify that the preparation process is not contributing contamination to the samples. <br /> 7 4 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 affeets 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 /> 1CB Initial Calibration -Blank - Analyzed to verify the instrument baseline is within criteria. <br /> ICV Initial Calibration Verification Analyzed to verify the instrument calibration is within criteria. <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 /> NDIVon-detect Result was below the DQO listed for the analyte. <br /> is the criteria against which the quality control data is compared. <br /> DQO Data Quality Objective This <br /> �t <br /> i <br /> STK734959: Quality Control Page 2 <br /> F, <br /> li <br />