Skip to main contentSkip to main content
Register for more free articles.
Log in Sign up
Back to homepage
Subscriber Login
Keep reading with a digital access subscription.
Subscribe now
You are the owner of this collection.
Edit Collection
You have permission to edit this collection.
Edit
Arizona Daily Star
98°
  • Sign in
  • Subscribe Now
  • Manage account
  • Logout
    • Manage account
    • e-Newspaper
    • Logout
  • News
    • Sign up for newsletters
    • Local
    • Arizona
    • Business
    • Crime
    • Nation & World
    • Markets & Stocks
    • SaddleBrooke
    • Politics
    • Archives
    • News Tip
  • Arizona Daily Star
    • E-edition
    • E-edition-Tutorial
    • Archives
    • Special Sections
    • Merchandise
    • Circulars
    • Readers' Choice Awards
    • Buyer's Edge
  • Obituaries
    • Share Your Story
    • Recent Obituaries
    • Find an Obituary
  • Opinion
    • Submit a Letter
    • Submit guest opinion
    • Letters to the Editor
    • Opinion & Editorials
    • National Columnists
  • Sports
    • Arizona Wildcats
    • Greg Hansen
    • High Schools
    • Roadrunners
  • Lifestyles
    • Events Calendar
    • Arts & Theatre
    • Food & Cooking
    • Movies & TV
    • Movie Listings
    • Music
    • Comics
    • Games
    • Columns
    • Play
    • Home & Gardening
    • Health
    • Get Healthy
    • Parenting
    • Fashion
    • People
    • Pets
    • Travel
    • Faith
    • Retro Tucson
    • History
    • Travel
    • Outdoors & Rec
    • Community Pages
  • Brand Ave. Studios
  • Join the community
    • News tip
    • Share video
  • Buy & Sell
    • Place an Ad
    • Shop Local
    • Jobs
    • Homes
    • Freedom RV AZ
    • Marketplace
    • I Love A Deal
  • Shopping
  • Customer Service
    • Manage My Account
    • Newsletter Sign-Up
    • Subscribe
    • Contact us
  • Mobile Apps
  • Weather: Live Radar
  • Facebook
  • Twitter
  • Bluesky
  • YouTube
  • Pinterest
  • Instagram
© 2026 Lee Enterprises
Terms of Service | Privacy Policy
Arizona Daily Star
News+
Read Today's E-edition
Arizona Daily Star
News+
  • Log In
  • $1 for 3 months
    Subscribe Now
    • Manage account
    • e-Newspaper
    • Logout
  • E-edition
  • News
  • Obituaries
  • Opinion
  • Wildcats
  • Lifestyles
  • Newsletters
  • Comics & Puzzles
  • Buyer's Edge
  • Jobs
  • Freedom RV AZ
  • 98° Sunny
Share This
  • Facebook
  • Twitter
  • Bluesky
  • WhatsApp
  • SMS
  • Email
Colorado River reckoning: Not enough water
Share this
  • Facebook
  • Twitter
  • Bluesky
  • WhatsApp
  • SMS
  • Email
  • Print
Editor's Pick Web Only Top Story

Colorado River reckoning: Not enough water

From the Collection: Read more on water issues affecting Arizona series
  • Tony Davis
  • Dec 29, 2022
  • Dec 29, 2022 Updated Jun 22, 2025

For Star subscribers: The water delivery system that 40 million people in the U.S. West depend on is at risk of collapse as the Colorado River shrinks.

(6) updates to this series since Updated Jun 22, 2025

U.S. West's water management system on edge of collapse, expert says

U.S. West's water management system on edge of collapse, expert says

For Star subscribers: Western water management system may be in the early stages of collapse.

At Glen Canyon, receding waters reveal a cathedral ─ and shift debate

At Glen Canyon, receding waters reveal a cathedral ─ and shift debate

For Star subscribers: To critics, Glen Canyon Dam was one of the U.S.'s biggest environmental mistakes. But it generates electricity for about 5 million people in seven states.

Lake Powell's record low levels confound tourists, businesses, Park Service

Lake Powell's record low levels confound tourists, businesses, Park Service

For Star subscribers: Without curbs in water use, Lake Powell seems likely to keep falling, squeezing a multi-billion-dollar recreation economy already damaged by the pandemic.

Plunging water levels flip activists' goal for Glen Canyon Dam

Plunging water levels flip activists' goal for Glen Canyon Dam

For Star subscribers: Debate over how to manage Lake Powell rages on as environmentalists prepare for when Lake Powell drops too low to deliver water.

The Colorado River we rely on is likely to get even drier

The Colorado River we rely on is likely to get even drier

For Star subscribers: As bad as conditions are today, they could get worse as hotter, drier conditions in the west intensify.

Our water future: We'll pay more and use much less. Here's how

Our water future: We'll pay more and use much less. Here's how

For Star subscribers: Expect to pay more for water and food, install low-flow toilets and drink treated wastewater.

In this Series

Collection: Read more on water issues affecting Arizona

  • Updated Oct 28, 2024
    Environmentalists ask state to regulate groundwater pumping near the San Pedro
  • Updated Oct 28, 2024
    San Pedro River conservation area finally has federal water rights to protect it
  • Updated Oct 26, 2024
    Tribal water projects need more than a one-time fix, senators told
  • 25 updates
Tony Davis

Tony Davis

Reporter

  • Author facebook
  • Author twitter
  • Author email

As featured on

Collection: Read more on water issues affecting Arizona

Collection: Read more on water issues affecting Arizona

Read more of the latest stories from the Arizona Daily Star covering water issues.

Pima County among areas that could face water messes like Buckeye's

Pima County among areas that could face water messes like Buckeye's

For Star subscribers: State officials say Buckeye in Maricopa County, long one of the U.S.' fastest growing cities, lacks enough groundwater to support its projected homebuilding. Other areas likely face that dilemma, too, Arizona's water director warns.  

Why electricity production is at risk at both huge Colorado River reservoirs

Why electricity production is at risk at both huge Colorado River reservoirs

For Star subscribers: The worst-case forecast has Lake Powell falling to low enough levels by the end of next year to halt electricity production at the Glen Canyon Dam.

Environmental reporter Tony Davis on his introduction to the Colorado River

Environmental reporter Tony Davis on his introduction to the Colorado River

Longtime Arizona Daily Star reporter Tony Davis shares how he came to focus on coverage of the Colorado River as an environmental reporter.

Photos: The receding waters of Lake Powell, Glen Canyon National Recreation Area

Photos: The receding waters of Lake Powell, Glen Canyon National Recreation Area

The Glen Canyon Institute guided Arizona Daily Star photographer Kelly Presnell and reporter Tony Davis on a journey into Glen Canyon National…

Environmental reporter Tony Davis on the U.S. West's water system

Environmental reporter Tony Davis on the U.S. West's water system

Longtime Arizona Daily Star reporter Tony Davis talks about the Colorado River system being "on the edge of collapse" and what it could mean f…

Environmental reporter Tony Davis on his series 'Colorado River reckoning: Not enough water'

Environmental reporter Tony Davis on his series 'Colorado River reckoning: Not enough water'

Behind the series: The Star's longtime environmental reporter Tony Davis shares what inspired him to write the investigative series "Colorado …

Tucson offers to leave more CAP water in the Colorado River

Tucson offers to leave more CAP water in the Colorado River

For Star subscribers: City to leave "significant volumes" of its Central Arizona Project water supply in the river in return for U.S. financial compensation. 

Receding waters of Lake Powell reveal hidden beauty

Receding waters of Lake Powell reveal hidden beauty

As water in one of the nation's largest reservoirs recedes, geologic features hidden for nearly 50 years are revealed in Glen Canyon National …

Another La Niña could be more bad news for the Colorado River

Another La Niña could be more bad news for the Colorado River

For Star subscribers: Our third La Niña weather pattern in three years seems almost certain, and one climate expert says that could be a big problem for the already over-tapped Colorado River.

Environmental reporter Tony Davis on the threat of 'dead pool' levels affecting water supply

Environmental reporter Tony Davis on the threat of 'dead pool' levels affecting water supply

Longtime Arizona Daily Star reporter Tony Davis explains what "dead pool" means as water levels shrink along the Colorado River.

Environmental reporter Tony Davis on possible alternatives to river water

Environmental reporter Tony Davis on possible alternatives to river water

Longtime Arizona Daily Star reporter Tony Davis talks about the viability of seawater desalination and wastewater treatment as alternatives to…

Arizona cities, tribes rethink planned water cuts

Arizona cities, tribes rethink planned water cuts

Arizona is bearing too much of the burden and needs help if the basin it to avoid a worse shortage,  local officials say.

Arizona water chief seeks federal action on Colorado River

Arizona water chief seeks federal action on Colorado River

For Star subscribers: Compensated turf removal; paying farmers to grow lower-water-use crops; and investing in water reuse, recycling and salt water desalination are among the dozen specific proposals. 

Squabbling Arizona, California hold key to Colorado River's future

Squabbling Arizona, California hold key to Colorado River's future

For Star subscribers: Arizona and California, which have battled over the Colorado River for nearly a century, are at it again. This time, Arizona leaders are blaming California, and other states, for putting the burden of stemming the river's impending crisis on their backs alone. 

Students call on U of A Foundation to divest $82M from fossil fuels

Students call on U of A Foundation to divest $82M from fossil fuels

The student-led UAZ Divest is still pushing the University of Arizona Foundation to divest from fossil fuels due to climate change. 

Firm wants to desalt Sonoran seawater, sell it to Arizona cities

Firm wants to desalt Sonoran seawater, sell it to Arizona cities

For Star subscribers: A state water board agreed Tuesday to start talks with company that wants to build a $5.5 billion desalination plant in Sonora and pipe water to Arizona. 

Arizona Daily Star reporter Tony Davis' top 5 stories of 2022

Arizona Daily Star reporter Tony Davis' top 5 stories of 2022

Colorado River reckoning: Behind the series with reporter Tony Davis

Colorado River reckoning: Behind the series with reporter Tony Davis

Longtime Arizona Daily Star environmental reporter Tony Davis sits down to discuss his investigative series "Colorado River reckoning: Not eno…

Winter rain, snow not enough to pull West out of drought

Winter rain, snow not enough to pull West out of drought

The Colorado River is in crisis, shrinking at the hands of climate change. A 23-year “megadrought” has created the region’s driest conditions since around A.D. 200.

California's Colorado River plan would hit Arizona hard

California's Colorado River plan would hit Arizona hard

For Star subscribers: The largest possible cuts in river water use envisioned by California could theoretically strip all supplies from the Central Arizona Project. But California officials insist it's not their intent to shut down the CAP.

'Game of chicken' or 'chess game,' Colorado River solution elusive

'Game of chicken' or 'chess game,' Colorado River solution elusive

For Star subscribers: Water officials for the river basin states express hopes of negotiating a settlement, but many outside experts aren't so optimistic.

Lake Powell hits record low but snowy weather should bring reprieve

Lake Powell hits record low but snowy weather should bring reprieve

Lake Powell on the Colorado River fell to its lowest level on record last week, highlighting long-term risks to the reservoir that stores wate…

Three states agree on plan to save Colorado River water

Three states agree on plan to save Colorado River water

For Star subscribers: Arizona, California and Nevada have agreed on a plan to shave a total of 3 million acre-feet over the next three years from their Colorado River water use in return for federal compensation of at least $1 billion, sources familiar with the negotiations say. 

Arizona, California, Nevada offer landmark deal to save Colorado River water

Arizona, California, Nevada offer landmark deal to save Colorado River water

Arizona, California and Nevada on Monday proposed a plan to significantly reduce their water use from the drought-stricken Colorado River over…

Two prominent farmers join calls to study Glen Canyon Dam decommissioning

Two prominent farmers join calls to study Glen Canyon Dam decommissioning

For Star subscribers: They are unlikely allies to the longtime goal of many environmentalists. But political winds are shifting as the Colorado River runs drier. 

Arizona Daily Star
  • Facebook
  • Twitter
  • Bluesky
  • YouTube
  • Instagram
  • Arizona Daily Star Store
  • This is Tucson
  • Saddlebag Notes
  • Tucson Festival of Books

Sites & Partners

  • E-edition
  • Classifieds
  • Events calendar
  • Careers @ Lee Enterprises
  • Careers @ Gannett
  • Online Features
  • Sponsored Blogs
  • Get Healthy

Services

  • Advertise with us
  • Register
  • Contact us
  • RSS feeds
  • Newsletters
  • Photo reprints
  • Subscriber services
  • Subscription FAQ
  • Licensing
  • Shopping
© Copyright 2026 Arizona Daily Star, PO Box 26887 Tucson, AZ 85726-6887
Terms of Use | Privacy Policy | Advertising Terms of Use | Do Not Sell My Info | Cookie Preferences
Powered by BLOX Content Management System from bloxdigital.com.
  • Notifications
  • Settings
You don't have any notifications.

Get up-to-the-minute news sent straight to your device.

Topics

News Alerts

Breaking News