Vista Grande Drainage Basin Improvement Project, Final EIR/EIS [environmental Impact Report, Environmental Impact Statement] Responses to Comments ; SCH # 2013032001

The City of Daly City, as Lead Agency under the California Environmental Quality Act (CEQA), and the National Park Service (NPS), as Lead Agency under the National Environmental Policy Act (NEPA), have prepared a joint Final Environmental Impact Report and Environmental Impact Statement (EIR/EIS), consisting of the Draft EIR/EIS and a Responses to Comments document, for the proposed Vista Grande Drainage Basin Improvement Project (Project). The Final EIR/EIS is available as of September 8, 2017. Daly City is proposing the Project to address storm-related flooding in the Vista Grande Drainage Basin in Daly City and in unincorporated Broadmoor Village in northwestern San Mateo County, while providing the additional benefit of augmenting the level of Lake Merced in San Francisco. The Project would also improve recreational access and reduce litter transfer and deposition along the beach below Fort Funston and maximize the use of existing rights-of-way, easements, and infrastructure to minimize construction-related costs, habitat disturbance, and disruption to recreational users. The Project would consist of partial replacement of the existing Vista Grande Canal to incorporate a debris screening device, a treatment wetland, and diversion and outfall structures to route some flows from the Canal to Lake Merced; replacement of the existing Vista Grande Tunnel to increase its peak capacity and extend its operating life; and replacement of the existing Ocean Outlet structure at Fort Funston. The Vista Grande Canal, Tunnel, and Ocean Outlet are located within San Francisco except for a small portion of the beginning of the Canal which is located within unincorporated San Mateo County. Operational components of the project would include management of water elevations in Lake Merced and a Lake Management Plan that would implement water quality best management practices.