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OD!anzwtign RSaboratory CERTIFICATE OFANALYSIS <br /> Monday,December 12,2011 <br /> Attention: Jay Visconti <br /> Northwood Properties Report Page 22 of 23 <br /> 324 Manhatton Beach Blvd <br /> Manhatton Beach, CA 966634 <br /> Metals by EPA 6000/7000 Series Methods-Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source °/uREC RPD <br /> Analyte Result Limit Units Level Result °/uREC Limits RPD Limit Notes <br /> Batch AL11201 -EPA 3050B Units <br /> Matrix Spike Dup(AL11201-MSD1) Source:1120702-01 Prepared&Analyzed: 12-Dec-1 I <br /> Molybdenum 8.56 0.0100 mg/kg dry 10.1 0.0570 84 75-125 5 20 <br /> Nickel 15.8 0.0100 5.06 10.8 97 75-125 3 20 <br /> Selenium 3.92 0.0100 5.06 0.0924 76 75-125 0.06 20 <br /> Silver 5.13 0.0100 5.06 ND 101 75-125 0 20 <br /> Thallium 5.24 0.0100 5.06 ND 104 75-125 0.8 20 <br /> Zinc 18.1 0.100 5.06 13.4 92 75-125 0.2 20 <br /> mg,L=milligrams per Liter=ppm DLR=Detection Limit for Purpose of Reporring. <br /> ng-1.-micrograms per Liter=ppb Erceltoonal sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> (�5101,r' <br /> Jonathan Le,Laboratory Director <br /> 3935 X Coronado Ave Stockton CA. 95204 nhone: (209) 4"-8105 Fax: (209) 546-7497 <br />