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PRECISION <br /> • D ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANAL YSIS <br /> Thursday,January 20, 2005 <br /> Attention: Abby Raeco <br /> Neil O. Anderson &Associate Report Page 8 of 12 <br /> 902 Industrial Way <br /> Lodi, CA 95240 <br /> Conventional Chemistry Parameters by APHAdEPA Methods- Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source 96REC RPD <br /> Analyte Result Limit Units Level Result %RE•C Limits RPD Limit Notes <br /> Batch AA50608-General Preparation <br /> Blank(AA50608-BLKI) _ _ Prepared&Analyzed:06-Jan-05 <br /> Fluoride ND 1.00 mg/L <br /> Chloride ND 1.00 " <br /> Sulfate eis SO4 ND 1.00 " <br /> Nitrite as N ND 0.200 " <br /> Nitrite as NO2 ND 0.500 <br /> Nitrate as N ND 0.200 " <br /> Nitrate as NO3 ND 1.00 " <br /> LCS(AA50608_-BSI) _ Prepared&Analyzed:06-Jan-05 <br /> Chloride 106 1.00 mg/j- 100 106 80-120 <br /> ulfate as SO4 112 1.00 + 100 112 80-120 <br /> � <br /> Fluoride 10.8 1.00 10.0 108 80-120 <br /> Nitrite as N 18.8 0.200 15.0 125 70-110 <br /> Nitrite es NO2 62.7 0.500 50.0 125 70-120 <br /> Nitrate as N 12.9 0.200 11.3 114 80-120 <br /> Nitrate as NO3 57.2 1.00 50.0 114 80-120 <br /> Matrix Spike(AA50608-MSI) Source:5010608-01 Prepared&Analyzed:06-Jan-05 _ <br /> Chloride 92.6 1.00 mg/L 50.0 66.0 53 75-125 <br /> Fluoride 5.21 1.00 " 5.OU ND 104 75-125 <br /> Sulfate as SO4 66.2 1.00 " 50.0 23.4 86 75-125 <br /> Nitrite as N 7.23 0.200 7.48 ND 97 70-120 <br /> Nitrate as NO3 58.0 1.00 25.0 53.4 18 75-125 <br /> Nitrate as N 13.1 0.200 5.64 12.0 20 75-125 <br /> Nitrite as NO2 24.2 0.500 25.0 ND 97 70-110 <br /> Matrix Spike Dup(AA50608-MSDI) Source:5010608-01 Prepared&Analyzed:06-Jan-05 _ <br /> Chloride 92.4 1.00 mgt 50.0 66.0 53 75-125 0.2 20 <br /> Sulfate m SO4 66.0 1.00 50.0 23.4 85 75-125 0.3 20 <br /> Fluoride 533 1.00 5.00 ND 107 75-125 2 20 <br /> Nitrate m N 13.0 0.200 5.64 12.0 18 75-125 0.8 20 <br /> Nitrate as NO3 57.4 1.00 25.0 53.4 16 75-125 1 20 <br /> Nitrite u NO2 24.1 0.500 25.0 ND 96 70-110 0.4 20 <br /> Nitrite as N 7.23 0.200 " 7.48 ND 97 70-120 0 20 <br /> mgiL=milligromr per Laer=ppm DLR-DeteMm LmitforPurpose ofReponM9.. <br /> ug2=micrograms per Liter-ppb tizcepitonal sample mowwo or mterferencer may <br /> result m higher detecrlon limits <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane . Suite B2 Stockton CA. 95210 Dhone: (209) 477-8105 Fax: (209) 477-8148 <br />