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Talvitie <br />September 14, 2009 <br />Page 2 <br />3. We recently reviewed Technical Revision No. 9 for the Hamilton Mine regarding retention of <br />Pond B as a permanent post-mine feature. Information presented for TR-10 in particular pages <br />2.05-8ii and 2.05-8iii appears to be the same information presented in TR-9 regarding the <br />permanent impoundment demonstration. Of concern is that we had substantial comments <br />regarding the water quality demonstration for Pond B that do not appear to have been <br />incorporated into the TR-10 revised pages submittal. If approval of TR-9 is still pending then <br />we need to be sure that consistent updated information is incorporated into the permit <br />document and the revised pages for the TR-10 submittal should be updated accordingly. <br />Let me know if you have questions or require additional information. <br />c: Sandy Brown