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Colorado Attorney General

Phil Weiser

Colorado Attorney General

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Weiser says State of Colorado will take legal action to protect the state’s waters from weaker federal protections

April 21, 2020 (DENVER, Colo.)— Attorney General Phil Weiser released the following statement regarding the final Waters of the United States rule that the U.S. Environmental Protection Agency and Army Corps of Engineers released today:

“The federal government’s final Waters of the United States rule is too limited and excludes a significant percentage of Colorado’s waters from Clean Water Act protections. The final rule threatens to create unacceptable impacts to the state’s ability to protect our precious state water resources, and, in the absence of extraordinary state efforts to fill the gaps left by the federal government, will harm Colorado’s economy and water quality.

“We are pleased the final rule protects important agriculture exemptions and provides continued assurance that states retain authority and primary responsibility over land and water resources that are important to Colorado. However, the federal government’s decision to remove from federal oversight ephemeral waters, certain intermittent streams, and many wetlands is based on flawed legal reasoning and lacks a scientific basis.

“We are going to take legal action to protect Colorado waters and prevent the harmful aspects of the final rule from taking effect here.”

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Contact: Lawrence Pacheco

Director of Communications

Mobile: (720) 245-4689

lawrence.pacheco@coag.gov

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Attorney General Weiser statement on the U.S. Supreme Court striking down the Trump tariffs

Feb. 20, 2026 (DENVER) – Attorney General Phil Weiser released the following statement regarding the U.S. Supreme Court decision striking down the Trump tariffs: “The Supreme Court today made it clear that a federal emergency powers law does not give […]

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Attorney General Phil Weiser sues Energy Secretary Chris Wright for illegally ending $600M in leading-edge energy projects in Colorado

Feb. 18, 2026 (DENVER) – Attorney General Phil Weiser today co-led a coalition of 13 attorneys general in filing a lawsuit challenging the Trump administration’s unlawful decision to terminate and abandon funding for congressionally mandated energy and infrastructure programs created […]

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Attorney General Weiser to send settlement funds to Colorado PetSmart workers

Feb. 17, 2026 (DENVER) – More than 60 former PetSmart workers will soon receive checks in the mail from a November 2025 settlement reached with PetSmart. Attorney General Phil Weiser sued the company in July 2025, alleging it trapped dog […]

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Colorado Department of Law
Ralph L. Carr Judicial Building
1300 Broadway, 10th Floor
Denver, CO 80203

(720) 508-6000

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Attorney General Phil Weiser is working to defend Colorado communities against harmful and illegal actions from the federal government.

Learn more: Defending Colorado