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ENVIRONMENTAL nel c <br /> ANALYTICAL CHEMISTS <br /> November 29, 2007 Lab ID : STK0750689 <br /> Neil Anderson & Associates Customer : 3-9574 <br /> Quality Control - Organic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO 'Vote <br /> Organic <br /> 1,2-Dibromoethane(EDB) 504 11/18/2007:211236 Blank ug/L. ND <0.02 <br /> LCS ug/L 0.2950 104% 70-130 <br /> BS ug/L 0.2950 104% 70-130 <br /> BSD ug/L 0.2950 104% 70-130 <br /> BSRPD u 0.5868 0.0% 530 <br /> 1,3-Dibromopropane Blank ug/L 0.5868 70-130 70-130 <br /> LCS ug/L 0.5868 103% 70-130 <br /> BS ug/L 0.5868 100% 70-130 <br /> BSD ug/L 0.5868 104% 70-130 <br /> BSRPD u 0.5868 4.1% 530 <br /> 13DBP 504.1 11/19/2007:211948 CCV ug/L 9.975 99.6% 70-130 <br /> CCV ug/L 9.975 101% 70-130 <br /> CCV ug/L 9.975 101% 70-130 <br /> CCV I u 9.975 99.2% 1 70-130 <br /> DBCP 504 11/18/2007:211236 Blank ug/L ND <0.01 <br /> LCS ug/L 0.2950 93.7% 70-130 <br /> BS ug/L 0.2950 92.9% 70-130 <br /> BSD ug/L 0.2950 94.1% 70-130 <br /> BSRPD u 0.5868 1.3% <_30 <br /> 504.1 11/19/2007:211948 CCV ug/L 5.000 95.4% 70-130 <br /> CCV ug/L 10.00 97.6% 70-130 <br /> CCV ug/L 10.00 97.6% 70-130 <br /> CCV u 10.00 96.6% 70-130 <br /> EDB CCV ug/L 5.000 104% 70-130 <br /> CCV ug/L 10.00 104% 70-130 <br /> CCV ug/L 10.00 104% 70-130 <br /> CCV u 10.00 104% 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 :BS/BSD 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 /> O :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.Lindo Avenue Visalia,Califomia <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:8051525-4172 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 />