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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 Phil Weiser statement on the states not reaching agreement on future of Colorado River

Feb. 13, 2026 (DENVER) — Attorney General Phil Weiser today issued the following statement in regarding the end of negotiations over future management of the Colorado River without an agreement: “I am disappointed that the seven Basin States could not reach a consensus agreement […]

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Attorney General Phil Weiser statement on U.S. EPA revoking a key policy to combat climate change

Feb. 12, 2026 (DENVER) — Attorney General Phil Weiser today issued the following statement in response to the U.S. Environmental Protection Agency’s final rule rescinding the 2009 endangerment finding, which determined that greenhouse gas emissions from motor vehicles contribute to […]

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Attorney General Phil Weiser sues Trump administration over unlawful directive to cut more than $600M in federal public health grants

Feb. 11, 2026 (DENVER) – Attorney General Phil Weiser and the attorneys general from California, Illinois and Minnesota today sued the Trump administration over the White House Office of Management and Budget’s directive to unlawfully cut more than $600 million […]

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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.

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