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The Imperial Irrigation District in California is the Colorado River's largest water user. A new conservation plan will spend hundreds of millions to save water, but environmental advocates raised concerns.
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The Navajo Nation Council has unanimously approved a proposed water rights settlement. The deal would provide key water infrastructure for the tribe to supple tens of thousands of homes.
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A paper published Thursday gives, for the first time, a full accounting of where the Colorado River’s water goes. Lead author Brian Richter says the information can help guide ongoing negotiations on how to manage the river’s diminished water supplies in a future of drought and climate change.
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The states that use water from the Colorado River have proposed competing plans for managing the river.
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Officials at Grand Canyon National Park say crews are making progress building a new waterline to supply the South Rim.
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A bipartisan group of U.S. senators is pushing for solutions to the West’s long-term drought and its impacts on farmers and ranchers.
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Grand Canyon National Park officials warn that E. coli bacteria has been detected in the water supply close to Phantom Ranch. Park authorities said visitors should not consume any water in that area without boiling it first.
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A well located in Prescott Valley's Quailwood neighborhood tested above the EPA's Draft Maximum Containment level for PFAS during a recent retest. High levels of the chemical could be harmful to human health.
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Results of a new statewide poll show high levels of support for the proposed Baaj Nwaavjo I’tah Kukveni Grand Canyon National Monument.
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A senior Interior Department official who has played a key role in negotiations over the shrinking Colorado River will leave her job next month.