Technical Review of Davidson Canyon Hydrogeological Conceptual Model and Assessment of Spring Impacts, Rosemont Copper Project and Comparison of Natural Fluctuation in Groundwater Level to Provisional Drawdown Projections, Rosemont Mine

Provided here are comments related to the review of the following two reports: (a) Davidson Canyon Hydrogeologic Conceptual Model and Assessment of Spring Impacts, Rosemont Copper Project (Tetra Tech, 2010a), and (b) Comparison of Natural Fluctuation in Groundwater Level to Provisional Drawdown Projections, Rosemont Mine (Montgomery & Associates, 2010).