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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANAL YSIS <br /> Thursday,January 20,2005 <br /> Attention: Abby Racco <br /> Nell O.Anderson &Associate Report Page 9 of 12 <br /> 902 Industrial Way <br /> Lodi, CA 95240 <br /> Conventional Chemistry Parameters by APELVEPA Methods-Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source V.REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch AA50608-General Preparation <br /> Reference(AA506W-_SRM]) Prepared&Analyzed:06-Jan-05 <br /> Fluoride 1.04 1.00 mg/L 1.15 90 80-110 <br /> Nitrite as 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 N 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-BLK1) Prepared&Analyzed:07-Jan-05 <br /> Total Dissolved Solids ND 1.00 mg/L <br /> •Du r�h'cate(AA50709=DUP1) Source:5010504-01 Prepared&Analyzed:07-Jan-05 <br /> Total Dissolved Solids 4970 - 1.00 mg/L 4910 1 200 <br /> Reference(AA50709-SRM/) _Prepared&Analyzed:07-Jan-05 _ _— <br /> Total Dissolved Solids 402 1.00 mg/L 400 100 80-120 <br /> Batch AA51001 -General Preparation <br /> Blank AA51001-BLKI) Prepared:10-Jan-05 Analyzed: 12-Jan-05 <br /> Total Kjeldahl Nitrogen ND 0.200 mg/L <br /> LCS(AA51001-BSI)__ Prepared: 10-Ian-05 Analyzed: 12-Jan-05 <br /> Total Kjeldahl Nitrogen 13.0 0.200 mg/L 12.5 104 80-120 <br /> Matriz Spiked 51001-MS1) ._ Source:5010613-01 Prepared: 10-Jan-05 Analyzed: 12-Jan-05 <br /> Total Kjeldahl Nitrogen 15.0 0.200 mgt 12.5 1.85 105 75-125 <br /> mg'L-mJllgramrper Lim,-ppm DLR-Detection Lnmufar Purpose of Reporting. <br /> ugE—micrograms per Liter—ppb Gcepdonal sample maeriew or mterferenca may <br /> result in higher delecuon lunhs. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane. Suite B2 Stockton CA. 95210 phone: (209) 477-810.1 Fax: (209) 477-8148 <br />