Poseidon Water

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  • Home
  • What We Do
    • Overview
    • Partnership Approach
  • Desalination
    • Overview
    • Desal 101
    • Environmental Stewardship
    • Cost Trends
    • Process FAQs
  • Projects
    • Overview
    • Carlsbad Desal Plant
  • Market Regions
    • California
    • Florida
    • Texas
  • News and Events
  • Company
    • Overview
    • Management
    • Contact

Leading the Way
in New Water Solutions

Poseidon’s vision is to be the partner of choice for local governments and industrial water users interested in investments in water infrastructure projects at lower cost and reduced risk. We provide state-of-the-art technology, management expertise and innovative financing solutions to meet our customer’s  need for clean, fresh water in challenging environments.
Poseidon Water relies on unique project-specific partnerships to address the  water supply, wastewater treatment and water recycling goals of our public and private sector clients.  Our leading area of specialty is in large-scale seawater reverse osmosis desalination plants.Poseidon’s approach combines state-of-the-art technology with innovative contracting practices and a disciplined development process.  The result:  clean, efficient and environmentally friendly solutions for water-challenged communities. Learn more about Poseidon Water.

In Operation

Picture

Claude "Bud" Lewis Carlsbad Desalination Plant

The largest seawater desalination plant in the Western Hemisphere, producing 50 million gallons of water per day, has been in operation in San Diego County, California since late 2015. ​Learn more.

News

Newsom: California must boost water recycling, desalination
8/11/22 | The Associated Press

Carlsbad Desalination Plant Shields Region From Megadrought
3/16/22 | Water News Network

How San Diego Gets Drinking Water
 From The Ocean

10/29/21 | The New York Times

Carlsbad Desalination Plant Cuts Output to Conserve Electricity Amid Heat Wave 
8/19/20 | Times of San Diego

Carlsbad desalination plant locks down amid coronavirus pandemic
3/21/20 | Los Angeles Times

Carlsbad desal plant workers begin shelter-in-place to keep the water on
3/30/20 | San Diego Union Tribune


Commentary: Why desalination can help quench California's water needs - By Wendy Ridderbusch
1/29/20 | Cal Matters

To solve global water scarcity, we need to get more serious about desalinaiton 
12/30/19 | Popular Science Magazine

​Winter Edition of the Source Magazine Features Carlsbad Desal Plant 
1/10/19 | Source Magazine

​County Desalintion Plant Celebrates 40 Billion Gallons of Drinking Water
​
12/13/18 | FOX News

Commentary:  Why San Diego's desalination project should be replicated - By Barbara Boxer
10/12/17 | San Diego Union Tribune

Poseidon Water to collaborate with Lawrence Berkeley National Laboratory to research and develop new water technologies  
10/2/17 | OC Breeze

Desalination Plant Anniversary Bodes Well for California
12/14/16 | Water Deeply

California leaders double down on dry
4/3/16 | OC Register

10News – California’s drought isn’t over, but restrictions may ease up
​
3/25/16 | 10 News
San Diego Set to Ease Water Restrictions Thanks to Desal Plant
​
3/10/16 | Times of San Diego
More news

Press Releases

Carlsbad Desalination Plant Staff Take Extraordinary Step to Shelter in PLace to Ensure Operational Continuity at Critical Facility
3/18/20 | Press Release

Positive Operating Performance Boosts Desal Plant Bond Rating

10/24/19 | Press Release

U.S. EPA to Provide $585 million for Climate-Resilient Huntington Beach Seawater Desalination Plant 
10/22/19 | Press Release

Poseidon Water Congratulates the National Alliance for Water Innovation (NAWI) Team on $100M DOE Desalination Hub  
9/27/19 | Press Release

Poseidon Water Partners with Lawrence Berkeley National Laboratory on Algal Bloom Research 
2/04/19 | Press Release

Poseidon Water Applauds New Texas Law To Expand Water Supplies
6/23/17 | Press Release

Claude "Bud" Lewis Carlsbad Desalination Facility Recieves Prestigious Grand Award in Engineering
4/26/17 | Press Release

Nation's Largest Seawater Desalination Plant Marks One-Year Anniversary
12/14/16 | Press Release

More Press Releases

Awards & Accolades

Claude "Bud" Lewis Carlsbad Desalination Facility Recieves Prestigious Grand Award in Engineering 
4/26/17 I Press Release

DBIA Announces 2016 Design-Build Project of the Year - Carlsbad Desalination Plant
11/4/16 I Design-Build Institute of America

Poseidon Water Named Energy Champion by SDG&E
7/11/16 | Press Release

Carlsbad Desal Plant Named International Plant of the Year for 2016
4/22/16 | Global Water Intelligence
Desalination Deal of the Year for Carlsbad Desalination Plant
​
4/10/13  |  Global Water Intelligence
More Awards & Accolades
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