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- <br /> October 31, 2001 Lab ID : STK134980 <br /> Siegfried Engineering, Inc. Customer : 3-11360 <br /> Quality Control - Organic i <br /> i <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> DBCP 504.1 10/10/2001:A203 Blank ug/L ND <0.01 <br /> LCS ug/L 0.2941 79.2% 70-130 1 <br /> BS ug/L 0.2941 88.6% 70-130 I <br /> BSD ug/L 0.2941 93.0% 70-130 <br /> BSRPD ug/L 4.8% s30 <br /> I <br /> 504.1 10/10/2001:A 01-CCV ug/L 5.000 82.8% 70-130 <br /> 02-CCV ug/L 5.000 88.4% 1 70-130 <br /> 1,3-bibromopropane-Surrogate 504.1 1011012001:A203 Blank ug/L 0.5847 78.9% 70-130 <br /> LCS ug/L 0.5847 86.9% 70-130 <br /> BS ug/L 0.5847 93.5% 70-130 <br /> BSD ug/L 0-5847 96.7% 70-130 <br /> 504.1 10/10/200t:A 01-CCV ug/L 9.940 88.1% 70-130 <br /> 02-CCV ug/L 9.940 90.2% 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 /> 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 h <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 [he 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 /> r <br /> STK134980: Quality Control Page 2 <br />