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Laboratories Inc. _ <br /> Environmental Testing Laboratory Since 1949 <br /> Lawrence&Associates Reported: 04/24/2013 15:58 <br /> 3590 Iron Court Project: Diamond Pet Foods <br /> Shasta Lake City,CA 96019 Project Number: Diamond Pet Food-Ripon <br /> Project Manager: David Kirk <br /> Water Analysis (General Chemistry) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br /> QC Batch ID: BWD0814 Used client sample: Y-Description: OB-1, 04/09/2013 08:44 <br /> Total Dissolved Solids @ 180 C DUP 1307237-01 1110.0 1110.0 mg/L 0 10 <br /> QC Batch ID: BWD0815 Used client sample: Y-Description: OB-21, 04/09/2013 09:57 <br /> Total Dissolved Solids @ 180 C DUP 1307237-10 790.00 795.00 mg/L 0.6 10 <br /> QC Batch ID: BWD0905 Used client sample: Y-Description: 013-2, 04/09/2013 13:27 <br /> Nitrate as N DUP 1307237-02 3.1630 3.2630 mg/L 3.1 10 <br /> MS 1307237-02 3.1630 8.5828 5.0505 mg/L 107 80-120 <br /> MSD 1307237-02 3.1630 8.5384 5.0505 mg/L 0.5 106 10 80-120 <br /> QC Batch ID: BWD0906 Used client sample: Y-Description: OB-22, 04/09/2013 11:46 <br /> Nitrate as N DUP 1307237-11 ND ND mg/L 10 <br /> MS 1307237-11 ND 5.0919 5.0505 mg/L 101 80-120 <br /> MSD 1307237-11 ND 5.0990 5.0505 mg/L 0.1 101 10 80-120 <br /> QC Batch ID: BWD0995 Used client sample: N <br /> pH DUP 1307229-20 8.3600 8.3700 pH Units 0.1 20 <br /> Electrical Conductivity @ 25 C DUP 1307229-20 587.00 589.30 umhos/cm 0.4 10 <br /> QC Batch ID: BWD0996 Used client sample: N <br /> pH DUP 1307090-01 7.2700 7.3000 pH Units 0.4 20 <br /> Electrical Conductivity @ 25 C DUP 1307090-01 44.750 44.250 umhos/cm 1.1 10 <br /> QC Batch ID: BWD1082 Used client sample: Y-Description: OB-22, 04/09/2013 11:46 <br /> pH DUP 1307237-11 7.3100 7.3200 pH Units 0.1 20 <br /> Electrical Conductivity @ 25 C DUP 1307237-11 363.30 367.70 umhos/cm 1.2 10 <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 31 of 32 <br />