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4� <br /> August 14, 2006 Lab ID : STK635894 <br /> Customer : 3-9574 <br /> Neil Anderson & Associates <br /> ' Quality Control - Organic <br /> Constituent Method Date/ID Type Units Cone. QC Data DQO Note <br /> 504.1 07/21/2006:A203 Blank uglL ND <0.01 <br /> DBCP LCS uglL 0.2941 102% 70-130 <br /> BS uglL 0.2941 105% 70-130 <br /> BSD uglL 0.2941 102% 70-3300 <br /> BSRPD uglL 3.5 <br /> 504.1 07I25I2006:B 00-CCV ug1L 5.000 106% 70-130 <br /> 1,3-Dibrornopropane-Surrogate 504.1 0712112006:A203 Blank ug/L 0.5882 87.4 <br /> 70-130 <br /> LCS ug/L 0.5882 105% 70-130 <br /> BS uglL 0.5882 107% 70-130 <br /> BSD uglL 0.5882 105% 70-130 <br /> 504.1 0712512006:B OD CCV uglL 10.04 108%a 7D 130 <br /> Def-initions <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 /> { MSIMSD 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 /> �F 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 BIank - 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 /> I' r DQO Data Quality Objective This is the criteria against which the quality control data is compared. <br /> f <br /> r <br /> r ; <br /> . i <br />. l ' <br /> f <br /> 1 <br /> r <br /> STK635894: Quality Control Page 2 <br />