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= - ENVIRONMENTAL <br /> nel c <br /> ANALYTICAL CHEMISTS <br /> October 17, 2007 Lab ID : STK0739552 <br /> Neil Anderson & Associates Customer : 3-9574 <br /> Quality Control - Organic <br /> Constituent Method Date/ID Type Units Cone. QC Data DQO Note <br /> Organic <br /> 1,2-Dibromoethane(EDB) 504 10/10/2007:209910 Blank ug/L ND <0.02 <br /> LCS ug/L. 0.2950 110% 70-130 <br /> BS ug/L 0.2950 108% 70-130 <br /> BSD ug/L. 0.2950 99.9% 70-130 <br /> BSRPD u 0.2950 8.2% <30 <br /> 1,3-Dibromopropane Blank ug/L. 0.5868 70-130 70-130 <br /> LCS ug/L 0.5868 102% 70-130 <br /> BS ug/L 0.5868 100% 70-130 <br /> BSD ug/L 0.5868 93.3% 70-130 <br /> BSRPD u 0.2950 7.0% <30 <br /> 13DBP 504.1 10/12/2007:210600 CCV ug/L 9.975 106% 70-130 <br /> CCV u 9.975 104% 70-130 <br /> DBCP 504 10/10/2007:209910 Blank ug/L ND <0.01 <br /> LCS ug/L, 0.2950 96.7% 70-130 <br /> BS ug/L 0.2950 96.7% 70-130 <br /> BSD ug/L. 0.2950 91.5% 70-130 <br /> BSRPD u 0.2950 5.5% _<30 <br /> 504.1 10/12/2007:210600 CCV ug/L 5.000 98.0% 70-130 <br /> cc I u 10.00 1 105% 1 70-130 <br /> EDB CCV I ug/L 5.000 99.2% 70-130 <br /> CCV u 10.00 112% 1 70-130 <br /> Definition <br /> CCV :Continuing Calibration Verification- Analyzed to verify the instrument calibration is within criteria. <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 recovery. <br /> BS :Blank Spikes-A blank is spiked with a known amount of analyte. It is prepared to verify that the preparation process is not <br /> affecting analyte recovery. <br /> BSD :Blank Spike Duplicate of BS/BSD pair-A blank duplicate is spiked with a known amount of analyte. It is prepared to verify <br /> that the preparation process is not affecting analyte recovery. <br /> BSRPD :BSBSD Relative Percent Difference(RPD)-The BS relative percent difference is an indication of precision for the preparation <br /> and analysis. <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 /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Field Office <br /> P.O.Box 272/853 Corporation Street 2500 Stagecoach Road 563 E.LindoAvenue Visalia,California <br /> Santa Paula,CA 93061-0272 Stockton,CA 95215 Chico,CA 95926 TEL:559/734-9473 <br /> TEL:805/392-2000 TEL:209/942-0182 TEL:530/343-5818 Mobile:559/737-2399 <br /> FAX:805/525-4172 FAX:209/942-0423 FAX:530/343-3807 FAX:559/734-8435 <br /> CA NELAP Certification No.01110CA CA ELAP Certification No.1563 CA ELAP Certification No.2670 <br />