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40 PRECISION <br /> ENVIRO-TEbr7 -� <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Monday,June 2, 2008 <br /> Attention: Ryan Matthews <br /> Diamond Pet Foods Report Page 5 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 /> Blank(AE80804-BLKI) Prepared&Analyzed:08-May-08 <br /> Antimony ND 0.100 mg/L <br /> Beryllium ND 0.0200 " <br /> Selenium ND 0.0500 " <br /> Copper ND 0.0200 " <br /> Cadmium ND 0.0100 " <br /> Arsenic ND 0.0500 " <br /> Vanadium ND 0.0500 " <br /> Nickel ND 0.050 " <br /> Barium ND 0.0500 " <br /> Lead ND 0.0500 - <br /> Cobalt ND 0.0500 " <br /> Thallium ND 0.0500 " <br /> Molybdenum ND 0.0200 " <br /> Silver ND 0.0200 " <br /> Zinc ND 0.0500 " <br /> Chromium ND 0.0500 <br /> LCS_(A_E80804-BSI) Prepared&Analyzed:08-May-08 <br /> Nickel 1.00 0.050 mg(L 1.00 100 80-120 <br /> Cobalt 1.00 0.0500 1.00 100 80-120 <br /> Copper 1.02 0.0200 1.00 102 80-120 <br /> Thallium 1.05 0.0500 1.00 105 80-120 <br /> Cadmium 1.00 0.0100 1.00 100 80-120 <br /> Antimony 1.01 0.100 1.00 101 80-120 <br /> Lead 1.03 0.0500 1.00 103 80-120 <br /> Silver 1.03 0.0200 1.00 103 80-120 <br /> Vanadium 0.983 0.0500 1.00 98 85-115 <br /> Arsenic 1.00 0.0500 1.00 100 80-120 <br /> Selenium 1.01 0.0500 1.00 101 80-120 <br /> Zinc 1.01 0.0500 1.00 101 80-120 <br /> Barium 0.999 0.0500 1.00 100 80-120 <br /> Molybdenum 0.993 0.0200 1.00 99 85-115 <br /> Beryllium 1.01 0.0200 1.00 101 80-120 <br /> Chromium 1.00 0.0500 1.00 100 80-120 <br /> mg,L--milligrams per Liter=ppm DLR=Detection Limitfor Purpose DfReparling. <br /> ugl. -micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton C.A. 95204 nhone: (209) 477-8105 Fax: (209) 546-74.97 <br />