This document, "CALPUFF Modeling Protocol to Assess Ambient Air Quality Impacts," is being submitted to the U.S. Department of Agriculture Forest Service (USFS or Forest Service), Coronado National Forest (the Coronado), on behalf of Rosemont Copper Company. It presents an air dispersion modeling protocol that will be followed to assess impacts of emissions from the proposed new Rosemont Copper Project (Rosemont Project) on Air Quality Related Values (AQRV) including Visibility in Class I areas for the final environmental impact statement (FEIS) document. Pursuant to the National Environmental Quality Act (NEPA), the Forest Service is the lead agency for preparing the Environmental Impact Statement (EIS) for the proposed Rosemont project, and land manager for the Forest Service at the Coronado National Forest that prepared the draft EIS (DEIS) issued in September 2011. Based on comments received in response to the DEIS, changes have been made to the air quality modeling protocol that will be used to model and assess the ambient air quality impacts of the Rosemont project for presentation in the final EIS.
JBR Environmental Consultants Inc. 2012c. Rosemont Copper Company: CALPUFF Modeling Protocol to Assess Ambient Air Quality Impacts. Prepared for Rosemont Copper Company. Tempe, AZ: JBR Environmental Consultants Inc. December.