Colorado regulators warn the sulfur dioxide emissions could last, and urge neighbors to consider precautions.
Colorado Department of Public Health and Environment
Suncor “forever chemicals” in metro Denver creek appear to spike
Firefighting foam from recent accidents is suspected, while state has delayed action on a renewed pollution discharge permit
EPA, Colorado say Superfund site still secure despite cleanup delay. Cañon City locals are skeptical.
Officials say the former uranium mill site is still being maintained despite the company responsible for cleanup going insolvent
Suncor released dangerous sulfur dioxide in Commerce City, state says
But notice to public didn’t arrive until well after the harmful chemical spike was gone
How gun violence in Colorado hit a 40-year high, explained in six charts
Colorado in 2021 recorded its highest firearm-related death rate in at least 40 years
Suncor will finally reopen after a 3-month closure. But will anything change for its neighbors?
Gas prices that rose when Colorado’s only petroleum refinery closed are expected to drop. But residents who’ve dealt with Suncor’s pollution for decades aren’t so thrilled — and they have a plan.
What do the EPA’s new drinking water limits for PFAS, or “forever chemicals,” mean for Colorado?
Fed agency issues long-awaited mandatory drinking water caps for the toxic chemical. What should water agencies and consumers do?
When it comes to Colorado’s air pollution, why not blame Utah? The EPA does.
The federal agency refuses to approve Utah’s clean air plans until they stop violating “good neighbor” rules by sending ozone east to the Front Range.
Colorado’s air pollution permitting process for oil and gas, other industries may get a lot stricter
Lawmakers and environmental groups say state agencies move far too slow while ozone violations pile up, and want to dictate executive action
Opinion: Suncor hasn’t been straight with neighbors about its December shutdown
If the refinery won’t take meaningful action to improve safety and maintenance, state regulators must hold the operator accountable.