An initiative of the Center for Environmental Journalism at the University of Colorado Boulder

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Toxic algae blooms in reservoirs near Steamboat detected thanks to new state protocol

Since state officials began a more focused monitoring effort six years ago to detect toxic algae blooms in Colorado’s lakes and reservoirs, testing has documented harmful levels of such toxins three times on the Western Slope.

Despite pandemic, Denver Water’s lead reduction program shows promising early results

One year after it launched one of the largest lead treatment programs in the United States, Denver Water is slightly ahead of schedule.

Rio Blanco secures water right for dam-and-reservoir project

A judge has granted a water conservancy district in northwest Colorado a water right for a new dam-and-reservoir project that top state engineers had opposed.

Coke, Coors Seltzer, water trust announce Colorado River initiative

A coalition of high-profile businesses have signed up to add additional water for fish, farmers and hydropower generation to a key segment of the drought-stressed Colorado River.

Decision looms on Holy Cross reservoir exploration permit

The U.S. Forest Service said it is just weeks away from deciding whether a high-profile request to explore the geological feasibility of a new reservoir site in Colorado’s Eagle County should be granted.

Judge dismisses several water uses in White River reservoir case

A water court judge has agreed with state engineers and dismissed several of a water conservancy district’s claims for water for a dam and reservoir project in northwest Colorado.

Depositions delve into state engineers’ questions on proposed White River reservoir

As its trial date in water court approaches, hundreds of pages of depositions obtained by Aspen Journalism reveal state engineers’ sticking points regarding a proposed reservoir project they oppose in northwest Colorado.

Is ecosystem change in the Sacramento-San Joaquin Delta outpacing the ability of science to...

A science panel argues for a new approach to make research nimbler and more forward-looking to improve management in the ailing Delta.

Plastic pipes are polluting drinking water systems after wildfires – it’s a risk in...

Heat-damaged plastic pipes can continue to leach chemicals into water over time, and ridding a water system of the contamination can take months and millions of dollars.

Milestone Colorado River management plan mostly worked amid epic drought, review finds

Draft assessment of 2007 Interim Guidelines expected to provide a guide as talks begin on new operating rules for the iconic southwestern river