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PRECISION <br /> ENVIRO-TECH <br /> • Analytical Laboratory CERTIFICATE OFANA LYSIS <br /> Thursday,January 20,2005 <br /> Attention: Abby Raeco <br /> Neil O-Anderson &Associate Report Page 9 of 12 <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 °%REC Limits RPD Limit Notes <br /> Batch AA50608-General Preparation <br /> Reference(AA50608-SRMl) Prepared&Analyzed:06-Jan-05 <br /> Fluoride 1.04 1.00 mg/L 1.15 90 80.110 <br /> Nitrite asN 1.56 0.200 1.93 81 80-110 <br /> Nitrite as NO2 5.21 0.500 " 6.45 81 80-110 <br /> Nitrate as 3.32 0.200 " 3.45 96 80-110 <br /> Nitrate as NO3 14.7 1.00 15.3 96 80-110 <br /> Batch AA50709-General Preparation <br /> Blank(AA50709-BLKl) Prepared&Analyzed:07-Jan-05 ..__ <br /> Total Dissolved Solids ND 1.00 mg/L <br /> � <br /> uplicate(AA50709-DUPI) Source:5010504-01 Prepared&Analyzed:07-Jan-05 <br /> Total Dissolved Solids 4970 1.00 . mg/L 4910 1 200 <br /> Reference(AA50709-SR.I7) _ Prepared&Analyzed:07-Jan-05 <br /> Total Dissolved Solids 402 1.00 mgt 400 100 80-120 <br /> Batch AA51001-General Preparation <br /> Blank(AA51001-BLKI) Prepared: 10-Jan-05 Analyzed: 12-Jan-05 <br /> Total Kjeldabl Nitrogen ND 0.200 mg/L <br /> LCS(AA51001-BSI) Prepared: 10-Jan-05 Analyzed: 12-Jan-05 <br /> Tctul Kjeldahl Nitrogen 13.0 0.200 mg/L 12.5 104 80-120 <br /> Matrix Spike(AA51001-MSl) Source:5010613-01 Prepared: 10-Jan-05 Analyzed: 12-Jan-05 <br /> Total Kjeldahl Nitrogen 15.0 0.200 mg/L 12.5 1.85 105 75-125 <br /> mg&—ndligramsper Umr=ppm DLR=Detection 4imitforPupose nfRepor g. <br /> uVL-microgramsper liter-ppb Rsceptanal sample matrices or inter/eresces may <br /> result in higherdetemion lm.,Lt <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane. Suite B2 Stockton CA. 95210 phone: (209) 477-8105 Fax: (209) 477-8148 <br />