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- = .ENVIRONViENTAL t"'Acc"a <br /> O �C <br /> 1rI 1e 4 <br /> ' �WLJiI �i <br /> May I(I,—MYTICAL CHEMISTS <br /> Lab ID STK432422 <br /> Clark Well Inc. Customer : 3-2343 <br /> Quality Control - Inorganic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> Wet Chem <br /> Nitrate 300.0 04/13/2004:B215 LCS mg/L 2000. 916% 90-110 <br /> MS mg/L 400.0 95.5% 94-I11 <br /> (VI 440619-02) MSD mg/L 400.0 95.5% 94-111 <br /> MSRPD mg/L 0.0% 52.71 <br /> 300.0 04/13/2004:A 03-CCB mg/L ND <0.4 <br /> 03-CCV mg/L 20.00 94.0% 90-110 <br /> 04-CCB mg/L ND <0.4 <br /> 04-CCV mg/L 20.00 95.8% 90-110 <br /> Definitions <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 /> 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 /> crvn3ZGZZ' n-S1 4 f n1.nl Dw 1 <br /> Corporate Offlcec&Laboratory Office&Laboratory Field Off m <br /> P.O.Box 272/853 Corporation Street 2500 Stagecoach Road Visalia,California <br /> Sarna Paula,CA 93061-0272 Stockton,CA 95215 TEL (559)73x9473 <br /> TEL (805)392-2000 TEL (209)942-0181 FAX: (559)734-8435 . <br /> FAX: (805)5254172 FAX: (209)942-0423 Mobile: (559)737-2399 <br /> CA NELAP CertifIcanon No.0111 OCA CA ELAP Cerdl caeoa No.1563 <br />