What if we just recycled more water?

In many communities, treatment plants collect used water, purify it and send it back into the delivery system, mostly for irrigation and industrial purposes. In 2015 California recycled about 714,000 acre-feet, primarily for landscaping and irrigation. Sixteen percent, about 114,000 acre-feet, was used to recharge groundwater basins.  

Water recycling is often termed a “drought-proof” supply, and state initiatives aim to be reusing about 2.5 million acre-feet annually within a decade.