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ENVIRONM ITAL <br /> <V c y <br /> ANALYTICAL CHEMISTS <br /> January 9, 2008 Lab ID : STK0751376 <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 1210912007:211884 Blank ug/L ND <0.02 <br /> LCS. ug/L 0.2950 125% 70-130 <br /> BS ug/L 0.2950 134% 70-130 435 <br /> BSB ug/L. 0.2950 137% 70-130 435 <br /> BSRPD u 0.5868 1.8% <_30 <br /> 1,3-Dibromopropane Blank ug/L 0.5868 70-130 70-130 <br /> LCS ug/L. 0.5868 104% 70-130 <br /> BS ug/L 0.5868 97.2% 70-130 <br /> BSD ug/L 0.5868 95.1% 70-130 <br /> BSRPD u 0.5868 2,29b 530 <br /> 13DBP 504.1 12/10/2007:200047 CCV ug/L 9.975 101% 70-130 <br /> CCV uWL 9.975 94.4% 70-130 <br /> DBCP 504 12/0912007:211884 Blank ug/L ND <0.01 <br /> LCS ugll. 0.2950 97.3% 70-130 <br /> BS ug/L 0.2950 107% 70-130 <br /> BSD 119/1- 0.2950 107% 70-130 <br /> BSRPD u 0.5868 0.7% 530 <br /> 5043 12110/2007:200047 CCV ug/L 5.000 103% 70-130 <br /> CCV I u 10.00 1 110% 1 70-130 <br /> EDB CCV I g/L 1 5.000 1 127% 170-130 <br /> CCV nort. 10.00 132% 70-130 360 <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 /> 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 2721853 Corporation Street 2500 Stagecoach Road 563 E.Linda Avenue Visalia,California <br /> Santa Paula,CA 93061-0272 Stockton,CA 95215 Chico,CA 95926 TEL:559!734-9473 <br /> TEL:8051392-2000 TEL:2091942-0182 TEL:530/343-5818 Mobile:5591737-2399 <br /> FAX:8051525-4172 FAX:2091942-0423 FAX:5301343-3807 FAX:559f734-8435 <br /> CA NELAP Certification No.0111 OCA CA EL-AP Certification No.1563 CA ELAP Certification No.2670 <br />