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® Lacboractories Inc. , <br /> ® Environmental Testing Laboratory Since 1949 <br /> CB8,1 Reported: 02/12/2014 10:57 <br /> 180 Promenade Circle,Suite 320 Project: North County LF,SJ County <br /> Sacramento,CA 95834 Project Number: Annual 149270 <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 Quals <br /> QC Batch ID: BXA1925 <br /> Total Dissolved Solids @ 180 C BXA1925-BS1 LCS 545.00 586.00 mg/L 93.0 90-110 <br /> QC Batch ID: BXA1943 <br /> Chloride BXA1943-BS1 LCS 51.956 50.000 mg/L 104 90-110 <br /> Nitrate as N BXA1943-BS1 LCS 5.1100 5.0000 mg/L 102 90-110 <br /> Sulfate BXA1943-BS1 LCS 102.91 100.00 mg/L 103 90-110 <br /> QC Batch ID: BXA1969 <br /> Total Alkalinity as CaCO3 BXA1969-BS3 LCS 107.41 100.00 mg/L 107 90-110 <br /> QC Batch ID: BXA2027 <br /> Total Calcium BXA2027-BS1 LCS 9.9722 10.000 mg/L 99.7 85-115 <br /> Total Magnesium BXA2027-BS1 LCS 10.038 10.000 mg/L 100 85-115 <br /> QC Batch ID: BXA2092 <br /> Chemical Oxygen Demand BXA2092-BS1 LCS 726.82 750.00 mg 02/1- 96.9 85-115 <br /> QC Batch ID: BXB0008 <br /> Dissolved Calcium BXB0008-BS1 LCS 10.125 10.000 mg/L 101 85-115 <br /> Dissolved Magnesium BXB0008-BS2 LCS 9.9720 10.000 mg/L 99.7 85-115 <br /> Dissolved Sodium BXB0008-BS1 LCS• 10.566 10.000 mg/L 106 85-115 <br /> Dissolved Potassium BXB0008-BSI LCS 9.7474 10.000 mg/L 97.5 85-115 <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 patty.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 40 of 43 <br />