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-- ENVIRONMENTAL <br />Analytical Chemists <br />February 14, 2008 <br />Neil Anderson & Associates <br />Lab ID <br />Customer <br />Quality Control - Inorganic <br />STK0831082 <br />3-9574 <br />1p sGC�� <br />T <br />Constituent <br />Method <br />Date/ID <br />Type <br />Units <br />Cone. <br />QC Data <br />DQd <br />Note <br />Wet Chem <br />Nitrate+ Nitrite as N <br />450ONO3F <br />0210112008:201054 <br />MS <br />mg1L <br />4.000 <br />36.6 %a <br />5-285 <br />MSD <br />mg/L <br />4.000 <br />36.3% <br />5-285 <br />MSRPD <br />mgfL <br />4.000 <br />0.6% <br />530.4 <br />450ONO3F <br />02/01/2008:201193 <br />CCB <br />mg/1 <br />0.002 <br />0.1 <br />CCV <br />m0 <br />4.000 <br />94.4% <br />90-110 <br />CCB <br />mg/l <br />-0.002 <br />0.1 <br />CCV <br />mgll <br />4.000 <br />94.104 <br />90 -lin <br />Definition <br />CCV <br />: Continuing Calibration Verification - Analyzed to verify the instrument calibration is within criteria. <br />CCB <br />Continuing Calibration Blank - Analyzed to verify the instrument baseline is within criteria. <br />: Matrix Spikes - A random sample is spiked with a known amount of analyte. The recoveries are an indication of how that sample <br />MS <br />matrix affects analyte recovery. <br />: Matrix Spike Duplicate of MS/MSD pair - A random sample duplicate is spiked with a known amount of analyted. The <br />MSD <br />recoveries are an indication of how that sample matrix affects analyte recovery. <br />: MSIMSD Relative Percent Difference (RPD) - The MS relative percent difference is an indication of precision for the preparation <br />MSRPD <br />and analysis. <br />DQO <br />: Data Quality Objective - This is the criteria against which the quality control data is compared. <br />Corporate Ofncos & Laboratory <br />853 Corporation Street <br />Santa Paula, CA 93060 <br />TEL: 805/392-2000 <br />FAX: 8051525-4172 <br />CA NELAP Certification No. 0111 OCA <br />Office & Laboratory <br />2500 Stagecoach Road <br />Stockton, CA 95215 <br />TEL: 2091942-01 82 <br />FAX: 209f942-0423 <br />CA ELAP Certificalion No. 1563 <br />Office & Laboratory <br />563 E. LindoAvenue <br />Chico, CA 95926 <br />TEL: 530/343-5818 <br />FAX: 5'30/343-3807 <br />CA FLAP Cert (cation No. 2670 <br />Field Office <br />Visalia, California <br />TEL: 5591734-9473 <br />Mobile: 5591737-2399 <br />FAX: 559/734-8435 <br />