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Laboratories Inc. I <br /> Environmental Testing Laboratory Since 1949 <br /> haw Reported: 08/14/2012 13:49 <br /> 180 Promenade Circle,Suite 320 Project: Harney Lane,S.J.County <br /> Sacramento,CA 95834 Project Number. 139866 <br /> Project Manager. Sheila Richgels <br /> Water Analysis neral 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: BVH0012 Used client sample: N <br /> Total Dissolved Solids @ 180 C DUP 1214086-01 2020.0 2050.0 mg/L 1.5 10 <br /> QC Batch ID: BVH0157 J Used client sample: N <br /> Total Alkalinity as CaCO3 DUP 1214092-01 249.04 249.19 mg/L 0.1 10 <br /> QC Batch ID: BVH0263 J Used client sample: N <br /> Total Calcium DUP 1214025-28 2.3908 2.3449 mg/L 1.9 20 <br /> MS 1214025-28 2.3908 13.106 10.000 mg/L 107 75-125 <br /> MSD 1214025-28 2.3908 12.596 10.000 mg/L 4.0 102 20 75-125 <br /> Total Magnesium DUP 1214025-28 0.69987 0.68995 mg/L 1.4 20 <br /> MS 1214025-28 0.69987 11.872 10.000 mg/L 112 75-125 <br /> MSD 121402528 0.69987 11.099 10.000 mg/L 6.7 104 20 75-125 <br /> QC Batch ID: BVH0402__l Used client sample: N <br /> emical Oxygen Demand DUP 1213778-01 27.314 27.314 mg O/L 0 20 <br /> MS 1213778-01 27.314 766.01 750.00 mg O/L 98.5 80-120 <br /> MSD 1213778-01 27.314 779.52 750.00 mg O/L 1.7 100 20 80-120 <br /> QC Batch ID: BVH0403 J Used client sample: N <br /> Chemical Oxygen Demand DUP 1214196-05 281.80 295.32 mg O/L 4.7 20 <br /> MS 1214196-05 281.80 975.46 750.00 mg O/L 92.5 80-120 <br /> MSD 1214196-05 281.80 966.45 750.00 mg O/L 0.9 91.3 20 80-120 <br /> QC Batch ID: BVH0483 J Used client sample: Y-Description: MW-1, 07/30/2012 11:37 <br /> Chloride DUP 1214098-01 8.9890 9.0340 mg/L 0.5 10 <br /> MS 1214098-01 8.9890 63.869 50.505 mg/L 109 80-120 <br /> MSD 1214098-01 8.9890 63.866 50.505 mg/L 0.0 109 10 80-120 <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 Iaboratories,Inc.assumes no responsibility for report alteration,separation,detitchr ent or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bciabs.com Page 39 of 40 <br />