Environmental Protection Agency

A report out Monday from environmental groups looked at groundwater contamination from coal-fired power plants. Three of the worst sites are located in the Mountain West.

Coal ash is the solid waste leftover when you burn coal. It often gets mixed with water and washed into a pit — an ash pond. If the base of a pond isn’t properly sealed, pollutants in the mix can make their way into groundwater.

Abigail Beckman / 91.5 KRCC

The Environmental Protection Agency released an action plan Thursday regarding potentially toxic chemicals known as PFAS. The chemicals have been detected in drinking water in Security, Widefield, and Fountain, among other locations across the country.

Western states are likely to be affected most by the Trump administration's proposal to roll back parts of the Clean Water Act. The Environmental Protection Agency would no longer give special protections to thousands of miles of seasonal streams and millions of acres of wetlands that often go dry by late summer in the arid West. That would leave states to decide whether to protect such waters themselves. 

For months, farmers from Mississippi to Minnesota have been waiting for the Environmental Protection Agency to make up its mind about a controversial weedkiller called dicamba.

The Environmental Protection Agency is making $20 million available for states and tribes to voluntarily test drinking water for lead at schools and childcare facilities.

Pesticides are all over, from backyard gardens to cornfields. While their use doesn’t appear to be slowing, concern over drift and the resulting effects on health is driving research — and more worries.

Those concerns are bringing pesticides to a different venue: courtrooms. 

Updated at 6:01 p.m. ET

Scott Pruitt will no longer lead the Environmental Protection Agency, President Trump announced Thursday afternoon via Twitter.

"I have accepted the resignation of Scott Pruitt," Trump tweeted. "Within the Agency Scott has done an outstanding job, and I will always be thankful to him for this," Trump also wrote.

If Scott Pruitt arrived on Capitol Hill expecting to be grilled Wednesday, he did not have to wait long to see that expectation fulfilled.

What we know about air pollution and health has roots in the mountain valleys of Utah. Winter smog episodes here are legendary.

Republican Sen. Mike Rounds of South Dakota went on NBC's Meet the Press on Sunday and defended embattled EPA administrator Scott Pruitt.

"We'll nitpick little things," Rounds said. "He has too many people on his security detail. It may add up to more than what the previous guy did. ... We said we had to have regulatory reform. We've got it. Scott Pruitt is a big part of that. He's executing what the president wants him to execute."

As allegations mount of EPA Administrator Scott Pruitt violating ethics policies and misusing taxpayer money, President Trump has repeatedly defended him. "Scott is doing a great job!" he said in one tweet.

Pruitt is one of the administration's most high profile members, and is often lauded as one of its most effective.

"Administrator Pruitt has fearlessly executed President Trump's regulatory reform agenda, there's no doubt about that," says Thomas Pyle, president of the American Energy Alliance.

Shanna Lewis / 91.5 KRCC

The Environmental Protection Agency is requesting public comment on a proposed interim plan to begin clean up in the Colorado Smelter Superfund site in south Pueblo.

Courtesy: Bessamer Historical Society

Toxin levels at two south Pueblo parks within the Colorado Smelter Superfund area are normal, according to the Environmental Protection Agency.

Jake Brownell / KRCC

Two Colorado based law firms filed class action suits last week over water contamination in southern El Paso County. It's the latest installment in a saga that's been ongoing since May. That was when the EPA revised their standards and announced a new health advisory for perfluorinated compounds, or PFCs. The chemicals were detected above the new health advisory levels in the drinking water in Security, Widefield, and Fountain.