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ENVIRONISrENTAL <br /> July 1P1YTICAL CHEMISTS Lab ID STK635172 <br /> Neil Anderson & Associates Customer : 3-9574 <br /> Quality Control - Inorganic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> Wet Chem <br /> Nitrate 300.0 06/23/2006:A215 LCS mg/L 20.00 102% 90-110 <br /> MS mg/L 400.0 119% 94-111 435 <br /> (STK635207-01) MSD mg/L 400.0 108% 94-111 <br /> MSRPD mg/L 9.2% <_2.71 435 <br /> 300.0 06/23/2006:A 00-ICB ppm ND <0.4 <br /> 00-CCB ppm ND <0.4 <br /> 00-ICV ppm 40.00 106% 90-110 <br /> 00-CCV ppm 1 20.00 1 104% 1 90-110 <br /> Explanations <br /> 435 Sample matrix may be affecting this analyte. Data was accepted based on the LCS or CCV recovery. <br /> Defmitions <br /> LCS Laboratory Control Standard/Sample - Prepared to verify that the preparation process is not affecting analyte <br /> recovery. <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 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 /> _ �_—�telit�t-6entrel Page i <br /> Office&Laboratory Field Office <br /> Corporate Offices&Laboratory Visalia,California <br /> P.O.Box 272/853 Corporation Street 2500 Stagecoach Road TEL: (559)734-9473 <br /> Santa Paula,CA 93061-0272 Stockton,CA 95215 FAX: (559)734-8435 <br /> TEL (805)392-2000 TEL: (209)942-0181 Mobile: (559)737-2399 <br /> FAX: (805)525-4172 FAX: (209)942-0423 <br /> CA NELAP Certification No.0111 OCA CA ELAP Certification No. 1563 <br /> CA ELAP Certification No. 1573 <br />