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El`IWI i <br /> November 18, 2011 Lab ID : STK1139867 <br /> Chesney Consulting Customer : 3-15419 <br /> Quality Control - Inorganic <br /> Constituent Method Dale/ID Type Units Conc. QC Data DQO Note <br /> Wet Chem <br /> Nitrate+Nitrite as N 450ONO3F MS mg/L 4.000 41.9% 5-285 <br /> (SP 1111640-008) MSD mg/L 4.000 36.6% 5-285 <br /> MSRPD m 4.000 14.0% <30.4 <br /> 450ONO3F 11/14/11:216901AMB CCB mg/L 0.020 0.1 <br /> CCV mg/L 4.000 100% 90-110 <br /> CCB mg/L 0.013 0.1 <br /> CCV mg1L 1 4.000 1 100% 1 90-110 <br /> Definition <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 analyted.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <br /> MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference ism indication of precision for the preparation <br /> and analysis. <br /> DQO Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> I <br /> Page 5 of 6 <br /> Corporate Offices It Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Field Office <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D Visalia,California <br /> Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 TEL:559/7349473 <br /> TEL:805!392-2000 TEL:209/942-0182 TEL:530/3435818 TEL:805!783-2940 Mobile:559/737-2399 <br /> FAX:805/525-4172 FAX:209/942-0423 FAX:530/343-3807 FAX:805/525-4172 FAX:559/7348435 <br /> CA NELAP C$i8figfion N6.'01110CA CA ELAP C9rliff6996n No.1563 CA FLAP Csrtlecarlon Nn.MM ra FI AP i-:e:tifira+iinn Nn 5rM <br />