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PRECISION <br /> 40 ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Monday, June 2, 2008 <br /> Attention: Ryan Matthews <br /> Diamond Pet Foods Report Page 6 of 13 <br /> 250 East Roth Road <br /> Lathrop, CA 95330 <br /> Metals by EPA 200 Series 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 AE80804-EPA 200 Series <br /> LCS(AE80804-BSI) Prepared&Analyzed:08-May-08 <br /> Matrix Spike(AE80804-MSI) Source:805081.0_-01 Prepared&Analyzed:08-May-08 _ <br /> Barium 1.09 0.0500 mg/L 1.00 0.0639 102 80-120 <br /> Beryllium 0.949 0.0200 1.00 ND 95 80-120 <br /> Arsenic 1.02 0.0500 1.00 0.0327 99 80-120 <br /> Cadmium 1.02 0.0100 1.00 ND 102 80-120 <br /> Silver 0.910 0.0200 1.00 0.00807 90 80-120 <br /> Cobalt 1.01 0.0500 1.00 ND 101 80-120 <br /> Selenium 0.983 0.0500 1.00 ND 98 80-120 <br /> Chromium 1.01 0.0500 1.00 ND 101 80-120 <br /> Nickel 1.05 0.050 1.00 ND 105 80-120 <br /> Antimony 0.979 0.100 1.00 ND 98 80-120 <br /> Vanadium 0.932 0.0500 1.00 ND 93 75-125 <br /> Thallium 0.934 0.0500 1.00 ND 93 80-120 <br /> Molybdenum _ 0.965 0.0200 1.00 ND 97 75-125 <br /> Zinc 1.01 0.0500 1.00 ND 101 80-120 <br /> Matrix Spike Dup(AE80804-MSDI) Source:8050810-01 Prepared&Analyzed:08-May-08 <br /> Beryllium 0.954 0.0200 mg/L 1.00 ND 95 80-120 0.5 20 <br /> Chromium 1.01 0.0500 1.00 ND 101 80-120 0.4 20 <br /> Silver 0.920 0.0200 1.00 0.00807 91 80-120 1 20 <br /> Arsenic 1.02 0.0500 1.00 0.0327 99 80-120 0.3 20 <br /> Selenium 0.970 0.0500 1.00 ND 97 80-120 1 20 <br /> Molybdenum 0.977 0.0200 1.00 ND 98 75-125 1 20 <br /> Barium 1.08 0.0500 1.00 0.0639 102 80-120 0.09 20 <br /> Cobalt 1.02 0.0500 1.00 ND 102 80-120 0.5 20 <br /> Nickel 1.05 0.050 1.00 ND 105 80-120 0.4 20 <br /> Zinc 1.01 0.0500 1.00 ND 101 80-120 0.6 20 <br /> Vanadium 0.953 0.0500 1.00 ND 95 75-125 2 20 <br /> Cadmium 1.02 0.0100 1.00 ND 102 80-120 0.09 20 <br /> Thallium 0.891 0.0500 1.00 ND 89 80-120 5 20 <br /> Antimony 0.992 0.100 1.00 ND 99 80-120 1 20 <br /> mg'L=milligrams per Liter=ppm DLR=Defection Lima jor Purpose of Reporting. <br /> ug L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> ��_/ <br /> Jonathan Le,Laboratory Director - <br /> 3935 N. Coronado Ave Stockton CA. 95204 phone: (209) 477-8105 Fax: (209) 546-7497 <br />