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For Cleaner Water, Just Add Beer

The city of Boulder is teaming up with a local beer maker to use brewing byproducts to treat wastewater.
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Flickr/The Brit_2

Leave it to Colorado to dream up a greener beer: The city of Boulder is teaming up with Avery Brewing Company to use weak wort—a sugar-water brewing byproduct—to help treat municipal wastewater.

In a state with many breweries and some of the nation's stricter clean-water regulations, it's a winning approach that both city and brewery hope others will replicate.