As requested, our hydrologists Stan Leake, Jesse Dickinson, Don Pool, and Nick Paretti have conducted a technical review of WestLand Resources report "Rosemont Copper Project: Potential Effects of the Rosemont Project on Lower Cienega Creek." The report documents an analysis of the potential impacts described in the report are changes in base flow and length of wetted stream length. The approach used to assess impacts include regressions models with groundwater level as the explanatory variable and base flow and wetted length as response variables.
U.S. Geological Survey. 2014f. Technical Review of WestLand Resources report "Rosemont Copper Project" Potential Effects of the Rosemont Copper Project on Lower Cienega Creek". In Letter from James Leenhouts, Director, USGS Arizona Water Science Center, to Jim Upchurch, Forest Supervisor, Coronado National Forest. Tucson, Arizona: U.S. Geological Survey. September 30.