Technical Review of M & A (2009c) Groundwater Flow Model Report Prepared for Rosemont Copper

This review has been undertaken at the request of SWCA and the CNF. This memo provides comments related to a review of the report, Groundwater Flow Modeling Conducted for Simulation of Proposed Rosemont Pit Dewatering and Post-Closure, (M & A, 2009c) prepared by Errol L. Montgomery & Associates, Inc. (M & A) for Rosemont Copper Company.