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. , <br /> ENVIRONMtNTAL <br /> -net. cz, <br /> ANALYTICAL CHEMISTS <br /> January 8, 2008 Lab ID : STK0751909 <br /> Neil Anderson & Associates Customer : 3-9574 <br /> Quality Control - Organic <br /> Constituent Method Date(ID Type Units Conc. QC Data DQO Note <br /> Organic <br /> 1,2-Dibmmoethane(EDB) 504 1212212007:212190 Blank ug/L ND <0.02 <br /> LIES ug/L 0.2950 107% 70-130 <br /> BS ug/L 0.2950 112% 70-130 <br /> SSD ug/L 0.2950 114% 70-130 <br /> BSRPD ug/L 0.2950 1.4% X30 <br /> 1,3-Dibromopropane Blank ugh- 0.5868 70-130 '70-130 <br /> LCS ug/L 0.5868 109% 70-130 <br /> BS ug/L 0.5868 105% 70-130 <br /> SSD ug/L 0.5868 115% 70-130 <br /> BSRPD ugiL 0.2950 8.7%a <30 <br /> 13DBP 504.1 12122/2007:213328 CCV ug/L 9.975 ill% 70-130 <br /> CCV I a 9.975 1 108% 70-130 <br /> DBCP 504 1212212007:212190 Blank ug/L ND <0.01 <br /> LCS ug/L 0.2950 124% 70-130 <br /> BS ug1L 0.2950 131 % 70-130 435 <br /> BSD ug/L 0.2950 130% 70-130 <br /> BSRPD u 0.2950 0.8% <30 <br /> 504.1 12/22/2007:213328 CCV ug/L 5.000 131% 70-130 360 <br /> CCV I u 5.000 1 130% 70-130 <br /> EDB CCV I ug/L 1 5.000 1 117% 70-130 <br /> CCV u 5.004 113% 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. Itis 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 /> DQO :Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Explaination <br /> 360 :CCV above Acceptance Range(AR). Samples which were non detect for this analyte were accepted. <br /> 435 :Sample matrix may be affecting this analyte. Data was accepted based on the LCS or CCV recovery. <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Field Office <br /> P.O.Box 2721 653 Carporalion Street 2500 Stagecoach Road 563 E.Lindo Avenue Visalia,California <br /> Santa Paula,CA 93061-0272 Stockton,CA 95215 Chico,CA 95926 TEL:559f734-9473 <br /> TEL:8051392-2000 TEL:2091942-0182 TEL:5301343-5818 Mobile:559f737-2399 <br /> FAX:8051525-4172 FAX:209/942-0423 FAX:530/343-3807 FAX:559f734-8435 <br /> CA NELAP Certification No.0111OCA CA ELAP Certification No.1563 CA ELAP Certification No.2670 <br />