Such an integrated, multi-benefit perspective and analysis would be more valuable and would be a fundamental departure from most ongoing policy discussions and recent storage project analyses. Instead, storage should be considered and analyzed as part of larger portfolios of infrastructure and management actions, including: various water sources various types and locations of surface and groundwater storage various conveyance alternatives and managing all forms of water demands. In California’s vast and interconnected water system, storage projects should not be evaluated in isolation. Groundwater in California provides larger capacity storage for the longer term, such as for multi-year droughts, and is a substantial source of water and seasonal storage in places where surface water is limited. Surface water reservoirs provide benefits by capturing water when it is more abundant and storing it for times of greater water scarcity (most commonly storing water from California’s wet winter for its dry spring and summer, but also providing some ability to save water for short droughts). In a new study released today, we look at the different roles of storage in California’s integrated water system and evaluate storage capacity expansion from what we call a “system analysis approach.” This approach emphasizes how new storage projects, both above and below ground, can work in combination with one another and in concert with the broader water management system. With the continuation of California’s historic drought and the recent passage of Proposition 1, the potential value of additional water storage in the state is an area of vigorous discussion. From cover of new report, “ Integrating Storage in California’s Changing Water System“īy Jay Lund, Maurice Hall and Anthony Saracino
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