Climate change and other changing conditions may jeopardize the Hetch Hetchy Regional Water System's (RWS) ability to meet the San Francisco Public Utilities Commission's (SFPUC) desired level of service. This project will conduct a comprehensive vulnerability assessment of climate and other drivers. The project will assess the risks associated with identified vulnerabilities and develop an adaptation plan that is flexible and robust for a wide range of futures. The plan will provide guidance for water supply decisions over the next 50 years. Facilitated Research Partner: SFPUC.