It's likely to become a reality here in California sooner than you may think.
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This week, state water officials unveiled 62 pages of proposed rules.
The drought-prone state has turned to recycled water for more than 60 years.
But current regulations require it to first make a pit stop in a reservoir or an aquifer before it can flow to taps.
The new rules, mandated by state law, would require extensive treatment and monitoring before wastewater can be piped to taps.
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Right now, the city of Clovis does something similar, collecting sewage from homes.
Almost 3 million gallons a day flow through a "purple pipe" system to the "reuse facility" in southeast Clovis.
The treated water is then used to maintain city parks and landscaping.
State-wide regulations should be complete by the end of this year and could reach your home taps in the next 10 years.