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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw <br /> Project: Foothill Landfill Reported: 02/22/2010 12:27 <br /> 1326 North Market Boulevard Project Number: 124591 Groundwater <br /> Sacramento,CA 95834 Project Manager: Sheila Richgels <br /> Water Analysis (General Chemistry) <br /> Quality Control Report- Method Blank Analysis <br /> Constituent Batch ID QC Sample ID MB Result Units PQL MDL Lab Quals <br /> Chloride BTB0419 BTB0419-BLK1 0.19700 mg/L 0.50 0.059 J <br /> Nitrate as N BTB0419 BTB0419-BLK1 ND mg/L 0.10 0.026 <br /> Sulfate BTB0419 BTB0419-BLK1 ND mg/L 1.0 0.21 <br /> Bicarbonate BTB0453 BTB0453-BLK1 ND mg/L 5.0 5.0 <br /> Carbonate BTB0453 BTB0453-BLK1 ND mg/L 2.5 2.5 <br /> Total Alkalinity as CaCO3 BTB0453 BTB0453-BLK1 ND mg/L 4.1 4.1 <br /> Calcium— BTB0456 BTB0456-BLK1 ND mg/L 0.10 0.016 <br /> Magnesium BTB0456 BTB0456-BLK1 ND mg/L 0.050 0.029 <br /> Sodium— BTB0456 BTB0456-BLK1 ND mg/L 0.50 0.12 <br /> Potassium BTB0456 BTB0456-BLK1 ND mg/L 1.0 0.074 <br /> Total Dissolved Solids @ 180 C BTB0913 BTB0913-BLK1 ND mg/L 6.7 6.7 <br /> The results in this report apply to the samples analyzed in accordance with the chain o(custndv 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 parry interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 46 of 47 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />