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February 23, 2001 Lab ID : STK130552 <br /> Anderson & Associates Customer : 3-9574 <br /> Quality Control - Organic <br /> Constituent Method Date/ED Type Units Conc. QC Data DQO Note <br /> DBCP 504 02/14/2001:B203 Blank ug/L ND <0.01 <br /> LCS ug/L 0.2941 97.4% 70-130 <br /> BS ug/L 0.2941 89.4% 70-130 <br /> ' BSD ug/L 0.2941 91.0% 70-130 <br /> BSRPD ug/L 1.8% <30 <br /> 504 02/14/2001:A 03-CCV ug/L 5.000 94.2% 70-130 <br /> 04-CCV ug/L 10.00 96.3% 70-130 <br /> 1,3-Dibromopropane-Surrogate 504 02/14/2001:B203 Blank ug/L 1.169 101% 70-130 <br /> LCS ug/L 1.169 104% 70-130 <br /> BS ug/L 1.169 105% 70-130 <br /> BSD ug/L 1.169 104% 70-130 <br /> 504 02/14/2001:A 03-CCV ug/L 19.88 106% 70-130 <br /> 04-CCV ug/L 29.82 102% 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 /> ICV Initial Calibration Verification - Analyzed to verify the instrument calibration is within criteria. <br /> ICB Initial 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 /> 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 /> STK130552: Quality Control Page 2 <br />