… [T]raditional sources of water are projected to become less reliable as global warming shrinks the West’s mountain snowpack and unleashes more intense droughts. … With supplies at risk, Southern California’s cities and suburbs face major challenges in planning for the future. Decades from now, how might we get our water supply? And what ideas are leaders and managers of water agencies considering to ease risks of shortages — or even a scenario of a “Day Zero” crisis, in which we approach a point of running out? … Those who lead the region’s large water agencies say they are seeking to line up a diversified mix of sources by recycling wastewater, capturing stormwater, restoring watersheds, possibly building new water-transport infrastructure, and even tapping the Pacific Ocean. 

Other water supply technology news:

• Los Angeles Times: Should L.A. look to ’sponge cities’ to solve its flooding problem?
• Scientific American: Deep-sea desalination pulls drinking water from the depths
• Lookout Santa Cruz (Calif.): Opinion: Don’t saddle Monterey Peninsula ratepayers with unnecessary, expensive desalination project​