In May 2019, the Mendocino County Inland Water and Power Commission, Sonoma County Water Agency, California Trout, Inc., and Humboldt County entered into an Amended Planning Agreement to explore potential terms of a new license for the Potter Valley Project (Project) to protect fisheries and water supply in the Eel and Russian River Basins.1 The agreement commits to eight Shared Objectives for this Two-Basin Solution.2 In June 2019, these parties filed, before the Federal Energy Regulatory Commission (FERC), a Notice of Intent (NOI) to seek a new license for the Project. The Round Valley Indian Tribes subsequently joined the Amended Planning Agreement.3 In October 2019, the parties initiated the preparation of this Feasibility Study Report to develop a potential licensing proposal.