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At least 2% of US public water systems are like Flint’s

Is your community’s water tainted with lead? The data might not have been reported.

Praying for rain

The Zuni tribe's homeland is one of the most parched sections of the country. The tribe has already declared three drought emergencies in the last 15 years. Will it survive the next one?

Decades later, abandoned mines continue to haunt Colorado’s waterways

According to a 2017 study, there are over 23,000 abandoned mines across Colorado and 1,800 miles of streams that are impaired due to pollutants related to acid mine drainage.

Concern over the “forever chemical” PFAS in water supplies is high, but remedies remain...

A synthetic chemical’s appearance in public water supply wells raises questions of how to protect the public from unknown health hazards.

Video and photos: Captain Jack Mill drone flight, July 2019

This photo gallery contains images taken by drone for our story on acid mine drainage in Colorado, which featured the Captain Jack Mill...

Long criticized for inaction at the Salton Sea, California says it’s all-in on effort...

Dust suppression and habitat restoration are key elements in a plan to aid the Salton Sea, whose ills have been a sore point in Colorado River management.

As the Salton Sea shrinks, it leaves behind a toxic reminder of the cost...

Scientists fear that eventually the toxic residue of more than a century of agricultural runoff will be blown into the air — and into the lungs of residents.

Aspen’s rich history of befouling the Roaring Fork River

As Aspen evolved from a bucolic high-mountain meadow to an industrial city, pollution began to flow directly into the Roaring Fork River and its tributaries.

Owners of Eagle River Village mobile-home park defend water quality

Residents of a mobile home park in Edwards say their well water tastes, looks and smells bad.

Mobile-home residents stuck in a regulatory roundabout

It's unclear whether a new law could improve water quality in the Eagle River Village park, but legislators want to pressure owners to do more.