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F <br /> hi <br /> April 10, 2001 Lab ID STK131407 <br /> FAnderson & Associates Customer : 3-9574 <br /> Quality Control - Organic <br /> k <br /> Constituent Method Date/1D Type Units Cone. QC Data DQO Note <br /> DBCP 504 0410312001:A203 Blank ug/L ND <0.01. <br /> LCS ug/L 0.2941 92.0% 70-130 <br /> BS ug/L 0.2941 99A% 70-130 <br /> BSD ug/L 0.2941 101% 70-130 <br /> BSRPD ug/L 1.6% S 30 <br /> F:' <br /> 504 04103/2001:A 00-CCV ug/L 10.00 101% 70-130 <br /> 01-CCV ug1L 5.000 101% 70-130 <br /> 1.3-Dibromopropane-Surrogate 504 04/0312001:A203 Blank ug1L 0.5847 96.6% 70-130 <br /> E LCS uglL 0.5847 99.3% 70-130 <br /> BS ugIL 0.5847 99.0% 70-130 <br /> BSD ug/L 0.5847 102% 70-130 <br /> 504 04/03/2001:A 00-CCV ug1L 14.91 99.3% 70-130 <br /> 01-CCV ug1L 1 9.940 98.5% 70-130 i <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 /> bow that sample matrix affects analyte recovery. <br /> BSIBSD 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 /> CCV Continuing 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 /> ND : Non-detect - Result was below the DQO listed for the analyte. <br /> DQO Data Quality Objective This is the criteria against which the quality control data is compared. <br /> I <br /> F, <br /> F <br /> a <br /> F i <br /> i <br /> STK131407: Quality Control Page 2 t <br />