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PRECISION . <br /> �i <br /> ENVIRO-TECH <br /> l Analytical Laboratory <br /> CERTIFICATE OF ANALYSIS <br /> Wednesday, May 11,2005 <br /> Attention: Abby Racco <br /> Neil 0.Anderson&.`Associate Repon Paye a ofs <br /> 902 Industrial Way <br /> Lodi, CA 95240 <br /> 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 %R£C Limits RPD Limit Notes <br /> Batch AE50210-General Preparation <br /> Blank(AE50210-BLKI) Prepared&Analyzed:02-May-05 <br /> Nitrate as NO3 ND 1.00 mg/L <br /> LCS'(AE50210-BS1) Prepared&Analyzed:02-May-05 <br /> Nitrate as N111 50.4 1-00 mg/L 50.0 101 70-120 <br /> Matrix Spike(AE50210-MSI) Source:5050211-01 Prepared&Analyzed:02-May-05 <br /> Nitrate as NO3 48.5 2.00 mg/L 50.0 ND 97 75-I25 <br /> I <br /> Matrix Spike Dup(AE50210-MSD1) Source:5050211-01 Prepared&Analyzed:02-May-05 <br /> L Nitrate as NO3 46.0 2.00 mg/L 500 ND 92 75-125 5 20 <br /> 'Reference(AE50210-SRMI) Prepared&Analyzed:02-May-05 <br /> LNitrate as NO3 14.8 1.00 mg/L 15.3 97 80-110 <br /> r <br /> f� <br /> I <br /> ti <br /> i <br /> I <br /> I <br /> l <br /> 1 <br /> mg$=mifligrams per Liter=ppm IILR—Detection Limit for Purpose of Reporting. <br /> - ng1l,=micmgroms perLiter=ppb F ceplional smnple mwri—ar inief•renaes may' <br /> —h in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 7743 N. R'estLane. Suite B2 Stockton CA. 95 210 Phone: t209) 477-8105 .Far: (20.9)477-8148 <br /> L � <br />