Recycled graywater on tap soon in Colorado to combat drought

Brewing beer, cooking food, and refilling water bottles with recycled wastewater could soon become standard practice in a state that’s synonymous with its pristine-tasting snowmelt and mountain springs.

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Last week, Colorado’s water quality agency gave unanimous preliminary approval to regulate direct potable reuse — the process of treating sewage and sending it directly to taps without first being dispersed in a larger water body. Pending a final vote in November, the state would become the first to adopt direct potable reuse regulations, according to state and federal officials. …

As the state’s population explodes and regional water supplies dwindle, recycling water for drinking is a significant opportunity for stretching a limited supply, said Kevin Reidy, conservation specialist for the Colorado Water Conservation Board. And he said it’s a game changer in a place like Castle Rock, a city of 75,000 just south of Denver nestled under its prominent namesake butte, that relies primarily on pumping finite groundwater for drinking.

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