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Why did it take so long for the Navajo Nation to secure a Superfund designation?

Waste from 40 years of uranium mining has contaminated watersheds across the reservation

Locals wary of plan to recycle Leadville’s mining waste

Residents concerned plan to process historic mine waste could threaten Arkansas River, unearth town’s long-buried history

First Superfund site on Navajo Nation to address uranium mining pollution

Residents in Arizona community have suffered impacts of radiation exposure for decades

Without abdicating authority, EPA responds to Butler criticism

Water quality expert left role in November citing lack of engagement by federal agency

Frustrated, Peter Butler leaves Superfund advisory group

‘We are not consulted’ wrote outgoing chairman

After 8 years, businesses’ Gold King claims denied

Nearly 100 businesses and individuals applied for compensation for losses related to the spill

Silverton awarded $800,000 from EPA

Grant will be used for environmental cleanup and revitalization

Federal legislation seeks to update mining law

Outdated rules have left a slew of unremediated sites across the West

Silverton mine waste repository construction to begin

The site will provide a final resting place for sludge removed from drainage of mines

Colorado oil, gas companies offer $459 million to guarantee wells are plugged eventually

Plans seek to meet new state financial requirements, but some smaller operators hope to put up only a fraction of the needed funds

EPA outlines 2023 Bonita Peak cleanup priorities

Agency has several large projects in the Silverton Superfund site on next year’s schedule

Colorado regulators out of patience with oil well cleanup

K.P. Kauffman Co. says it will be in better financial condition if it sells northeastern Colorado wells to a company proposing to use them for a carbon capture project