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ACCO <br /> -- = ENVIROP. IENTAL ���� " <br /> o n <br /> i Y <br /> ANALYTICAL CHEMISTS <br /> January 28, 2003 Lab ID STK330174 <br /> Peter Lindberg Customer : 3-14056 <br /> Quality Control - Inorganic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> Wet Chem <br /> Nitrate + Nitrite as N 450ONO3F 01/16/2003:B220 MS mg/L 4.000 96.4% 92-113 <br /> (STK330172-02) MSD mg/L 4.000 96.3% 92-113 <br /> MSRPD mg/L 0.1% 54.66 <br /> 450ONO3F 01/16/2003:B 02-CCV mg/L 4.000 102% 90-110 <br /> 03-CCB mg/L ND <0.1 <br /> 03-CCV mg/L 4.000 104% 90-110 <br /> Definitions <br /> MS/MSD Matrix Spikes - A random sample is spiked with a known amount of analyte. The recoveries are an indication o <br /> how that sample matrix affects analyte recovery. <br /> CCB Continuing 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 /> 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 /> Report continued on next page... <br /> Corporate Offices&Laboratory Office&Laboratory Field Office <br /> P.O.Box 272/853 Corporation Street 2500 Stagecoach Road Visalia,California <br /> Santa Paula,CA 93061-0272 Stockton,CA 95215 TEL: (559)734-9473 <br /> TEL: (805)659-0910 TEL: (209)942-0181 FAX: (559)734-8435 <br /> FAX: (805)525-4172 FAX: (209)942-0423 Mobile: (559)737-2399 <br /> CA NELAPCertification No.01110CA CA ELAP Certification No. 1563 <br /> CA ELAP Certification No.1573 <br />