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Environment | EPA rejects Suncor’s air-pollution permit for…
Wednesday, June 24th 2026

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EPA rejects Suncor’s air-pollution permit for second time, demands Colorado regulators make changes

The federal agency’s objection comes after environmental groups petitioned for changes

Gas flares into the sky at the Suncor Energy refinery in Commerce City on July 26, 2023. (Photo by Hyoung Chang/The Denver Post)
Gas flares into the sky at the Suncor Energy refinery in Commerce City on July 26, 2023. (Photo by Hyoung Chang/The Denver Post)
Noelle Phillips of The Denver Post.
By | nphillips@denverpost.com | The Denver Post
PUBLISHED: | UPDATED:
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The EPA on Tuesday rejected one of Suncor's new air-quality permits and kicked it back to Colorado environmental regulators to make changes that would further limit pollution from the refinery.
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