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From: on behalf of Panel Registry Subject: FW: TNG registration of ...

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Attachment A<br />

Written Submissi<strong>on</strong> for Kevin Morin<br />

In 2009, Dr. Kevin Morin presented comments <strong>on</strong> the Prosperity EIS/A. Taseko Mines Limited<br />

resp<strong>on</strong>ded to his comments under the provincial and federal reviews. Dr. Morin will review his<br />

comments and Taseko’s resp<strong>on</strong>ses to them. His presentati<strong>on</strong> will address some or all <strong>of</strong> the topics set out<br />

below.<br />

REVIEW OF ML-ARD AND MINESITE WATER CHEMISTRY IN THE EIS/A<br />

1 PAG vs. N<strong>on</strong>-PAG Materials at the Prosperity Project<br />

2 Pr<strong>of</strong>essi<strong>on</strong>al Certificati<strong>on</strong><br />

3 Mine Plan<br />

4 Rock and Overburden<br />

5 ML-ARD Predicti<strong>on</strong>s<br />

5.1 Number <strong>of</strong> ABA samples<br />

5.2 Kinetic Tests<br />

5.3 Unavailable NP<br />

5.4 Criteria for Differentiating "PAG" and "n<strong>on</strong>-PAG" Rock<br />

5.5 Lag Time for PAG Material to Become Acidic<br />

5.6 Effect <strong>of</strong> Waste Rock Misclassificati<strong>on</strong><br />

5.7 Equilibrium Levels in Aqueous C<strong>on</strong>centrati<strong>on</strong>s<br />

6 Tailings<br />

7 Dissolved vs. Total Aqueous C<strong>on</strong>centrati<strong>on</strong>s<br />

8 Nitrogen Species from Explosives Used During Mining<br />

9 Expected Exceedances <strong>of</strong> Water-Quality Guidelines<br />

10 Prosperity Lake and Beece Creek<br />

WATER MOVEMENT IN THE EIS/A<br />

1 Draft Reports and Third-Party Liability<br />

2 Pr<strong>of</strong>essi<strong>on</strong>al Certificati<strong>on</strong><br />

3 Perpetually Submerged PAG Rock in the TSF<br />

REVIEW OF SUPPLEMENTARY DOCUMENTS FROM TASEKO MINES LIMITED, RELATED TO<br />

ML-ARD, DRAINAGE CHEMISTRY, AND WATER MOVEMENT<br />

1 Prosperity EA Review. Taseko Mines Limited Resp<strong>on</strong>ses to June 24, 2009 Federal Review <strong>Panel</strong><br />

Prosperity Gold-Copper Mine Project – Deficiency Statement, Informati<strong>on</strong> Requests from the Federal<br />

Review <strong>Panel</strong>, 1.0 Alternatives Assessment, I.R 1.1 Tailings and Waste Rock Storage Area<br />

2 Prosperity EA Review. Taseko Mines Limited Resp<strong>on</strong>ses to June 24, 2009 Federal Review <strong>Panel</strong><br />

Prosperity Gold-Copper Mine Project – Deficiency Statement. Informati<strong>on</strong> Requests from the Federal<br />

Review <strong>Panel</strong>, 4.0 Water Quality, I.R 4.1 L<strong>on</strong>g Term Treatment <strong>of</strong> Pit Lake Water Quality<br />

4

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