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Analytical dzufelta(,greenanalyticalpcom p: 970.247.4220 f 970.247.4227 75 Suttle Street Durango, CO 81303 <br />Laboratories <br />www.GreenAnalytical.com <br />Colorado Goldfields, Inc Project: Mill Samples <br />PO Box 2030 Project Name / Number: Mill TR -11 Reported: <br />Durango CO, 81302 Project Manager: John Ferguson 11/02/11 14:13 <br />General Chemistry - Quality Control <br />Reporting Spike Source %REC RPD <br />Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />Batch B109193 - General Prep - Wet Chem <br />Blank (B109193 -BLK2) Prepared & Analyzed: 09/28/11 <br />Conductivity ND 1.00 us/cm, <br />Duplicate (B109193 -DUP2) Source: 1109146 -04 Prepared & Analyzed: 09/28/11 <br />Conductivity 720 1.00 us/cm, 727 0.968 20 <br />Reference (B109193 -SRMI) Prepared & Analyzed: 09/28/11 <br />Conductivity 905 us/cm, 859 105 90 -110 <br />Batch B109219 - General Prep - Wet Chem <br />Duplicate (B109219 -DUPE) Source: 1109146 -01 Prepared & Analyzed: 09/28/11 <br />PH 6.58 pH Units 6.45 2.00 20 <br />Reference (Bl09219 -SRMI) Prepared & Analyzed: 09/28/11 <br />PH 8.25 pH Units 8.30 99.4 90 -110 <br />Batch B109222 - General Prep - Wet Chem <br />Blank (B109222 -BLK1) Prepared & Analyzed: 09/30/11 <br />Cyanide, WAD ND 0.00500 mg/L <br />LCS (B109222 -BS1) Prepared & Analyzed: 09/30/11 <br />Cyanide, WAD 0.0553 0.00500 mg/L 0.0500 Ill 85 -115 <br />LCS Dup (B109222 -BSDI) Prepared & Analyzed: 09/30/11 <br />Cyanide, WAD 0.0506 0.00500 mg/L 0.0500 101 85 -115 8.88 20 <br />Green Analytical Laboratories <br />Debbie Zufelt, Reports Manager <br />The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document. This analytical report must be reproduced in its entirety. In no event <br />shall Green Analytical Laboratories be liable for incidental or consequential damages. <br />GALS liability, and clients exclusive remedy for any claim arising, shall be limited to the <br />amount paid by client for analyses. All claims, including those for negligence and any other <br />cause whatsoever, shall be deemed waived unless made in writing and received within <br />thirty days after completion of the applicable service. <br />Page 25 of 36 <br />