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PRECISION <br /> 40 ENVIRO-TECH — <br /> Analytical Laboratory CERTIFICATE OFANAL YSIS <br /> Monday,June 2, 2008 <br /> Attention: Ryan Matthews <br /> Diamond Pet Foods Report Page 10 of 13 <br /> 250 East Roth Road <br /> Lathrop, CA 95330 <br /> Volatile Organic Compounds by EPA Method 8260B - 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 AE80705-Volatiles <br /> Blank(AE80705-BLKI) _ _ Prepared&Analyzed:07-May-08 <br /> m,p-Xylene ND 0.500 ug/l <br /> Ethyl tert-Butyl Ether(ETBE) ND 0.500 " <br /> tert-Amyl Methyl Ether(TAME) ND 0.500 " <br /> o-Xylene ND 0.500 " <br /> tert-Butyl Acohol(TBA) ND 50.0 " <br /> Diisopropyl Ether(DIPE) ND 0.500 " <br /> LCS(AE80705-BSI) _ Prepared&Analyzed:07-May-08 <br /> Benzene 20.3 0.500 ug/1 20.0 102 88-124 <br /> Chlorobenzene 22.8 0.500 20.0 114 88-117 <br /> 1,1-Dichlomethene 17.0 0.500 20.0 85 79-133 <br /> Toluene 20.0 0.500 20.0 100 88-122 <br /> Trichloroethene 17.5 0.500 20.0 87 85-117 <br /> Matrix Spike(AE_80705-MS1) Source:8050713-02 Prepared&Analyzed:07-May-08 <br /> Benzene 434 0.500 ug/l 20.0 526 NR 70-124 <br /> Chlombenzene 23.2 0.500 20.0 ND 116 70-117 <br /> 1,1-Dichloroethene 8.60 0.500 20.0 ND 43 70-133 <br /> Toluene 1650 0.500 20.0 1720- NR 70-122 <br /> Trichloroethene 15.4 0.500 20.0 4.31 56 70-117 <br /> Matrix Spike Dup(AE80705-MSD1) Source:8050713-02 Prepared&Analyzed:07-May-08 <br /> Benzene 457 0.500 ug/l 20.0 526 NR 70-124 5 15 <br /> Chlorobemmne 23.4 0.500 20.0 ND 117 70-117 0.8 15 <br /> 1,1-Dichloroethene 12.0 0.500 20.0 ND 60 70-133 33 15 <br /> Toluene 1820 0.500 20.0 1720 494 70-122 9 15 <br /> Trichloroethene 21.3 0.500 20.0 4.31 85 70-117 32 15 <br /> mg/L-.milligrams per Liter-ppm DLR=Detection Limit for Purpose of Reporting. <br /> ug,L-micrograms per Liter=pph 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 CA. 95204 phone: (209) 477-8105 Fax: (209) 546-7497 <br />