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ENVIRONMENTAL nel c <br /> Analytical Chemists <br /> February 8, 2008 Lab ID : STK0831047 <br /> Neil Anderson &Associates Customer : 3-9574 <br /> Quality Control-Inorganic <br /> Constituent Method Dateim Type Units Co.. QC Data DQO Note <br /> Wet Chem <br /> Nitrate+Nitrite asN 450ONO3F 02/01/2008:201054 MS ni 4.000 36.6% 5-285 <br /> MSD mg/L 4.000 36.3% 5-285 <br /> MSRPD m 4.000 06% <304 <br /> 450ONO3F 02/01/2008:201185 ICB mgA -0.003 0.1 <br /> ICV mgd 4.000 94.1% 90-110 <br /> CCB mg/l 0.007 0.1 <br /> CCV m 4.000 91.2% 1 90-110 <br /> Definition <br /> ICV :Initial Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> ICB :Initial Calibration Blank-Analyzed to verify the instrument baseline is within criteria. <br /> CCV :Continuing Calibration Verification- Analyzed to verify the instrument calibration is within criteria. <br /> CCB :Continuing Calibration Blank-Analyzed to verify the instrument baseline is within criteria. <br /> MS :Matrix Spikes-A random sample is spiked with a known amount of analyte. The recoveries are an indication of how that sample <br /> matrix affects analyte recovery. <br /> MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of malyted. The <br /> recoveries are an indication of how that sample matrix affects analyte recovery. <br /> MSRPD .MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation <br /> and analysis. <br /> DQO :Data Quality Objective-This is the criteria against which the uali control data is cora ared. <br /> Corporate 1Hflees&LaboniWry ORlee&Laboratory Orflee&Laboratory Field OTflae <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Undo Avenue Visalia,California <br /> Same Paula,CA 93060 Stockton,CA 95215 Chi.,CA 95926 TEL 559!/34-9473 <br /> TEL:805/392-2000 TEL:209/942-0182 TEL 530/343-5818 Mobile:559937-2399 <br /> FAX 805/525-4172 FAX:209/942-0423 FAX:530/343-3807 FAX 55917348435 <br /> CA NELAP Cehincatlon No.0111 OCA CA ELAP Cenl9caaon Na.1563 CA E1-AP Cartificatlon No.2670 <br />