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Laboratories Inc. _ <br /> Environmental Testing Laboratory Since 1949 <br /> Lawrence&Associates Reported: 07/22/2013 10:47 <br /> 3590 Iron Court Project: Diamond Pet Foods <br /> Shasta Lake City,CA 96019 Project Number: Diamond Pet Food <br /> Project Manager: David Kirk <br /> Water Analysis (General Chemistry) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent Lab <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br /> QC Batch ID: BWG0673 <br /> Nitrate as N BWG0673-BS1 LCS 4.9750 5.0000 mg/L 99.5 90-110 <br /> QC Batch ID: BWG0674 <br /> Nitrate as N BWG0674-BS1 LCS 5.1120 5.0000 mg/L 102 90-110 <br /> QC Batch ID: BWG0695 <br /> pH BWG0695-BS2 LCS 7.0600 7.0000 pH Units 101 95-105 <br /> Electrical Conductivity @ 25 C BWG0695-BS1 LCS 330.40 303.00 umhos/cm 109 90-110 <br /> QC Batch ID: BWG0696 <br /> pH BWG0696-BS2 LCS 7.0700 7.0000 pH Units 101 95-105 <br /> Electrical Conductivity @ 25 C BWG0696-BS1 LCS 325.20 303.00 umhos/cm 107 90-110 <br /> QC Batch ID: BWG0786 <br /> Total Dissolved Solids @ 180 C BWG0786-BS1 LCS 595.00 586.00 mg/L 102 90-110 <br /> QC Batch ID: BWG0787 <br /> Total Dissolved Solids @ 180 C BWG0787-BS1 LCS 570.00 586.00 mg/L 97.3 90-110 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 28 of 30 <br />