khả năng phục hồi để các nhà quản lý hệ thống có thể tiếp tục đáp ứng các trách nhiệm của định các tác động tiềm năng thông qua việc thu hẹp và mô tả điểm mạnh và các lỗ hổng hệ thống cụ thể Điều chỉnh hoạt động để kiểm tra hệ thống linh hoạt Xây dựng danh mục đầu tư lựa chọn thích ứng | Water System Adaptation Approach u Invest in actions that mitigate uncertainty and enhanceflexibility and resiliency so that system managers can continue to meet their responsibilities. Identify potential impacts through downscaling and characterizing system specific strengths and vulnerabilities Adjust operations to test system flexibility Develop portfolio of adaptation options Engage in ongoing research collaborate Change in Peak Season Consumption with Climate Change Scenarios TY Change in Water Supply with Climate Change Scenarios Baseline Operations Portfolio of Adaptation Options 1 SPU identified a series of intra-system modifications and new supply options - and grouped them into Tiers. 1 Applied the effects on supply using Tier 1 intra-system modifications. 1 Where Tier 1 modifications did not restore supply fully identified the need for subsequent Tiers. __ Tier 1 Solutions Optimize Existing Supply 1 Modify storage level of Cedar Reservoir and replace overflow dike 1 Change rule curve operating procedures for the Tolt Reservoir 1 Make modifications to Lake Young Reservoir Next Tiers Available to SPU 1 Tier 2 - Next Tier of Intra-System Modifications u Include additional use of Lake Youngs Storage 402-497 u Modified optimized conjunctive use operations u Additional conservation programs after 2030 1 Tier 3 - Greater Use of Storage u Higher refill levels at Chester Morse Lake 1566 u Higher flood pool level at CML assumes max level increased to 1575 1 Tier 4 - New Supply Alternatives u Deeper drawdown of South Fork Tolt reservoir 1660 u Deeper drawdown of Lake Youngs 28 Cedar Filtration u Use of Dead Storage for normal supply after pumping plant replacement u Develop North Fork Tolt Diversion u Develop Snoqualmie Aquifer Project u Northshore and Woodinville develop Weyerhaeuser Everett supply u Reclaimed water projects in Retail Service Area u Additional conservation programs 1 Tier 5 - New Supply Concepts u Reclaimed water projects in Wholesale Service Area
