New Mexico sued Colorado in June 2016, saying Colorado should be held responsible for the contamination as well as decades of toxic drainage from other mines.
Gold King Mine
Some 300 gallons of toxic water are released each minute from the site above the town of Silverton.
The agency started work on safety standards after the spill and expects to soon finish them, investigators from the EPA's Office of Inspector General said.
Farmers, business owners, residents and others initially said they suffered a staggering $1.2 billion in lost income. But the total now appears to be about $420 million.
These are the largest cuts and potential impacts in EPA Region 8, which covers Colorado, Montana, North Dakota, Utah, Wyoming and 27 Tribal Nations.
Earlier this week, the Trump administration ordered a temporary suspension of EPA contracts and grants. The agencies are sorting through what that means.
- The $10 billion bill passed 360-61 also sets a deadline for the EPA to reimburse local governments for emergency response costs.Read more
- The federal government has a stake in this case because the Environmental Protection Agency accidentally triggered the August 2015 spill at the Gold King Mine.Read more
In lieu of criminal prosecution, a spokesperson said a report will be prepared for the EPA’s top leadership to review.
The EPA called the move "an important step" in getting the resources necessary to further study and clean up the area and downstream communities.