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Laboratories Inc. . <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw Reported: 02/18/2013 14:19 <br /> 180 Promenade Circle,Suite 320 Project: Harney Lane,S.J.County <br /> Sacramento,CA 95834 Project Number. 139866-Annual <br /> Project Manager: Sheila Richgels <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 Qualls <br /> QC Batch ID: BWB0119 <br /> Total Dissolved Solids @ 180 C BWB0119-BS1 LCS 590.00 586.00 mg/L 101 90-110 <br /> QC Batch ID: BWE10135 <br /> Chloride BWB0135-BS1 LCS 51.668 50.000 mg/L 103 90-110 <br /> Nitrate as N BWB0135-BS1 LCS 5.1080 5.0000 mg/L 102 90-110 <br /> Sulfate BWB0135-BSI LCS 103.27 100.00 mg/L 103 90-110 <br /> QC Batch ID: BWBO166 <br /> Dissolved Calcium BWB0166-BS1 LCS 10.107 10.000 mg/L 101 85-115 <br /> Dissolved Magnesium BWB0166-BS1 LCS 9.9799 10.000 mg/L 99.8 85-115 <br /> Dissolved Sodium BWB0166-BS1 LCS 10.348 10.000 mg/L 103 85-115 <br /> Dissolved Potassium BWB0166-BSI LCS 9.7310 10.000 mg/L 97.3 85-t15 <br /> QC Batch ID: BWBO170 <br /> Total Alkalinity as CaCO3 BWB0170-BS3 LCS 100.41 100.00 mg/L 100 90-110 <br /> QC Batch ID: BWBO472 <br /> Total Calcium BWB0472-BS1 LCS 10.574 10.000 mg/L 106 85-115 <br /> Total Magnesium BWB0472-BSI LCS 10.400 10.000 mg/L 104 85-115 <br /> QC Batch ID: BWBO647 <br /> Chemical Oxygen Demand BWB0647-BS1 LCS 735.14 750.00 mg 02/1- 98.0 85-115 <br /> QC Batch ID: BWBO648 <br /> Chemical Oxygen Demand BWB0648-BSI LCS 735.14 750.00 mg 02/1- 98.0 85-115 <br /> The results in this report apply to the samples analyzed in accordance with the ohain oJcustody 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.bciabs.com Page 46 of 49 <br />