这篇文章描述了圣迭戈市开发新水源的努力。90%的供水来自科罗拉多河和州水项目。其他州、环境问题、农业利益和城市发展对这些水源的需求越来越大。据预测，到2015年，圣地亚哥将需要额外确定25万afy的新供水。综合资源计划确定了一系列资源来弥补这一供应短缺，包括:帝国谷和中央谷的农业转移、需求管理、海水淡化、水回收和水再利用。讨论了开发这些资源的努力。

This article describes the effort to develop new water supplies by the City of San Diego. 90% of its water supply is imported from the Colorado River and the State Water Project. Increasing demands are being placed on these water supplies by other states, environmental concerns, agricultural interests, and urban growth. It is projected that San Diego will need to identify an additional 250,000 afy of new water supply by the year 2015. Integrated resources plans have identified a mix of resources to make up this supply shortfall that include: agricultural transfers from the Imperial Valley and Central Valley, demand management, seawater desalination, water reclamation, and water repurification. The efforts to develop these resources are discussed.