Declining Sierra snowfall and continuing drought conditions have some people looking at recycling wastewater as a stable source of supplies in the future.

Many Bay Area districts are already tapping into lower-quality recycled water for outdoor use. Santa Clara Valley Water District Board Vice-Chair Gary Kremen says it’s about 5% of their supply.

“Most of our recycled water today is used for outdoor irrigation and some slight amount is used for cooling towers,” said Kremen.