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i <br /> PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE FANALYSIS <br /> Thursday,February 1, 2007 <br /> Attention: Mike Toy <br /> Dillon & Murphy ReporrPage3of4 <br /> P.O. BOX 2980 <br /> FLodi, CA 95241 <br /> Conventional Chemistry Parameters by APHA/EPA Methods- Quality Control <br /> 1� Precision Enviro-Tech <br /> Reporting Spike Source %REC RPD <br /> �t Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> It.. <br /> w Batch AA71201 -General Preparation <br /> � T - <br /> Blank AA71201-BLK1) Prepared:`f2-Jaii-07 Analyzed:01-Nov-07 <br /> Nitrate as NO -_ <br /> t 3 ND 1.00 mglL <br /> i� <br /> LCS(AA71201-BS1) Prepared: 12-Jan-07 Analyzed:01-Nov-07 I <br /> Nitrate as NO3 1.58 1.00 mg/L 2.00 79 70-120 <br /> i <br /> Matrix Spike(AA71201-MS1) Source:7011109-01 Prepared: 12-Jan-07 Analyzed:01-Nov-07 <br /> Nitrate as NO3 63.0 1.00 mglL 8.00 54.9 101 75-125 <br /> Matrix Spike Dup(AA71201-MSD1) Source:7011109-01 Prepared: 12-Jan-07 Analyzed:01-Nov-07 <br /> Nitrate as NO3 63.0 1.00 mglL, 8.00 54.9 101 75-125 0 20 <br /> i� <br /> F j � <br /> �I <br /> i� <br /> mg1L=milligrams per Liter=ppm DLA=Detection Limit forPurpose of Reporting. <br /> Fi" <br /> ug'L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, ;r <br /> (�j/Ow� <br /> i <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 phone: (209) 477-8105 Fax: (209) 477-8148 a <br />