A new choice in water: Sparkling, flat or recycled

By Jennifer Yachnin | 05/19/2025 01:37 PM EDT

Cities in the arid West are building “advanced water purification” plants to process wastewater into potable water, even producing recycled water to go straight into people’s homes.

Works climb up a wall covered in rebar at a big construction site.

At the Cave Creek Water Reclamation Plant Rehabilitation Project in Phoenix, workers construct an advanced water purification facility, which will include both retrofitted portions of the former plant and new facilities. Jennifer Yachnin/POLITICO's E&E News

PHOENIX — Recycled water is already plentiful in the arid West: It sprays from sprinklers across golf courses and irrigates landscaping.

But now those flows — wastewater scrubbed clean of contaminants — could also come out of the kitchen tap.

As cities across the arid West look to increase the water supplies for their growing populations, some are turning to multimillion-dollar projects to turn wastewater into drinking water, with the goal of reusing millions of gallons of water a day.

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Cities including Phoenix and El Paso, Texas, are building “advanced water purification” plants: industrial facilities that use methods including reverse osmosis and ultraviolet light to turn processed wastewater into potable water that could be used for drinking, cooking and bathing.

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