Superfund

Local News

EPA activity releases sediment from Bonita Peak mine into Animas River tributary

Impacts were minimal, no adverse effects to water quality observed

August 14, 2025

Local News

Frustrated, Peter Butler leaves Superfund advisory group

‘We are not consulted’ wrote outgoing chairman

December 21, 2023

Regional News

How to live next to radioactive waste

activists have been fighting for the cleanup of the Cotter Uranium Mill Superfund site for decades

March 6, 2023

Local News

What was the social impact of Gold King?

Environmentally, the spill was negligible. But seeing a mustard-yellow river spurred action to clean up mines

January 8, 2023

Local News

EPA orders access to water treatment plant north of Silverton

has been treating discharges out of Gold King Mine since 2015

January 10, 2021

Southwest Life

Five environmental issues to watch in 2021

Drought, overuse of public lands, mine cleanup top list in Southwest Colorado

December 31, 2020

Local News

Silverton Superfund site to remain on high-priority list, EPA says

‘Emphasis List’ created to speed up what can be lengthy processes

September 25, 2020

Local News

EPA proposes permanent mine waste dump site north of Silverton

Project needs approval from Sunnyside Gold, a company potentially on hook for costs

August 2, 2020

Local News

Rico mine owner sues to cover cleanup costs

Atlantic Richfield seeks compensation from previous owner

February 18, 2020

Local News

From the skies, geologists peer inside the Earth

Project aims to map underground at Silverton Superfund site

April 13, 2019

Local News

Power restored at Gold King water-treatment plant

Snowstorms had cut electricity

March 17, 2019

Local News

EPA places Silverton’s Superfund site on fast-track pilot program

Peak is 1 of 6 programs selected nationwide

February 7, 2019

Local News

Citizens group for Superfund site to meet Thursday for first time

Members will provide direct input to EPA about cleanup activities

January 28, 2019

Local News

EPA: Gold King Mine spill had no immediate, long-term impacts

confirms other organizations’ findings

December 4, 2018

Local News

Community group forming to provide Superfund input

Applications for 15-person board now being accepted

November 30, 2018

Local News

Companies agree to pay nearly $1M for Silverton Superfund cleanup

marks first ‘potentially responsible party’ payment

November 8, 2018

Regional News

Fish kill in Boulder County related to Superfund site water

Officials with the Colorado Department of Public Health and Environment and the U.S. Environmental Protection Agency say the contaminated water…

October 28, 2018

Local News

EPA’s quick-action Superfund plan receives flak from commenters

say money could be better spent elsewhere

September 14, 2018

Local News

Truck hauling Gold King Mine sludge crashes into Cement Creek

just started hauling waste from treatment plant to new storage site

July 9, 2018

Regional News

EPA accelerates cleanup of Pueblo Superfund neighborhoods

The agency said Friday it will increase funding for the Colorado Smelter Superfund site to as much as $15 million…

July 7, 2018

Local News

EPA proposes work at 26 mine sites over next 5 years

will clean up waste while long-term plan is completed

June 14, 2018

Regional News

EPA fires back at critics over Gold King Mine wastewater

Wastewater streams out of the Gold King Mine in southwestern Colorado after a contractor crew led by the Environmental Protection…

April 12, 2018

Local News

Community groups help Colorado counties participate in Superfund process

are best way to engage with the EPA, counties say

April 7, 2018

Regional News

Mining company challenges EPA order for Superfund site study

Sunnyside Gold Corp. said Wednesday it asked for a conference at which the company can ask EPA to modify or…

March 21, 2018