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r) t t <br /> PRECISION <br /> F <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Tuesday, December 21, 2004 <br /> Anenlion: ©aye Welch <br /> Neil O. Anderson &Associate Report Page 4 of <br /> 902 Industrial Way <br /> Lodi, CA 95240 <br /> i Conventional Chemistry Parameters by APHA/EPA Methods- Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> i <br /> Batch AL41413-General Preparation <br /> Blank(AL41403-BLK1) Prepared&Analyzed: 14-Dec-04 <br />�I Nitrate as NO3 ND 1.00 mg/L <br />! ; LCS(AL41403-BSI) Prepared&Analyzed: 14-Dec-04 <br />! Nitrate as NO3 52.5 1.00 mg/L. 50.0 105 80-120 <br /> i <br /> Matrix Spike(AL41403-MS1) Source:4121403-01 Prepared&Analyzed: 14-Dec-04 <br /> FNitrate as NO3 25.5 1.00 mg/L 25.0 ND 102 75-125 <br /> I <br /> Matrix Spike Dup(AL41403-MSD1) Source.4121403-01 Prepared&Analyzed: 14-Dec-04 <br /> Nitrate as NO3 24.5 1.00 mg/L 25.0 ND 98 75-125 4 20 <br /> FReference(AL41403-SRM1) Prepared&Analyzed: 14-Dec-04 <br /> Nitrate as NO3 14.6 1.00 mg/L 15.3 95 80-110 <br /> i <br /> A <br /> pl. <br /> I <br /> I <br /> I <br /> h <br /> F:R <br /> I <br /> pi <br /> F <br /> IF <br /> i <br /> mg/L—milligrams per Liter=ppm DLR=Detection Limit forPurpose of Reporting. <br /> ug/L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> F, RESPECTFULLY SUBMITTED, <br /> I I1 <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane . Suite B2 Stockton CA. 95210 phone: (209) 477-8105 Fax: (209) 477-8148 <br />{ <br />