Montgomery & Associates developed a groundwater flow model designed to simulate conditions prior to pit development, during pit dewatering, and for a 100-year post-closure period of groundwater level recovery and potential pit lake development. In support of the model, conducted initial investigations in the proposed mine area including exploration drilling, hydraulic testing, groundwater level monitoring, field verification of geologic maps in the proposed area, and literature reviews.
Montgomery and Associates Inc. 2009. Groundwater Flow Modeling Conducted for Simulation of Proposed Rosemont Pit Dewatering and Post-closure, Rosemont Project, Pima County, Arizona. Prepared for Rosemont Copper Company. Tucson, Arizona: Montgomery and Associates. October 28.