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ENVIRONS ENTAL <br /> NovembePtIW � CHEMISTS Lab ID : STK235575 <br /> Ehlers Elevators Customer : 3-14822 <br /> Quality Control - Inorganic <br /> Constituent Method Date/ID Type Units Cone. QC Data DQO Note <br /> Wet Chem <br /> Nitrate + Nitrite as N 450ONO3F 10/29/2002:A220 MS mg/L 4.000 104% 92-113 <br /> (SP 210942-01) MSD mg/L 4.000 101% 92-113 <br /> MSRPD mg/L 1.4% 54.66 <br /> 450ONO3F 11/01/2002:C 00-ICB mg/L ND <0.1 <br /> 00-ICV mg/L 4.000 98.8% 90-110 <br /> 01-CCB mg/L ND <0.1 <br /> 01-CCV mg/L 4.000 101% 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 /> ICB Initial Calibration Blank - Analyzed to verify the instrument baseline is within criteria. <br /> ICV Initial 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 /> CCV Continuing Calibration Verification - Analyzed to verify the instrument calibration is within criteria. <br /> ND Nan-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 /> CTK9T5575• (lnality f:nnlrnl Pagr 1 <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)734-6435 <br /> FAX: (805)525-4172 FAX: (209)942-0423 Moblle: (559)737-2399 <br /> CA NELAPC6rtificatlon No.01110CA CA ELAP Certification No.1563 <br /> CA ELAP Certification No.1573 <br />