Controversy Follows California's Massive Desalination Plant Proposal

Poseidon Water, a massive desalination project proposed for the Pacific coast in Huntington Beach, has been in the works for more than two decades. A critical vote is expected for the project next month.

2 minute read

April 25, 2022, 8:00 AM PDT

By James Brasuell @CasualBrasuell


An energy production facility rises above a wetlands along the Pacific Ocean.

The Huntington Beach Wetlands and the Huntington Beach Energy Center are the proposed site for the Poseidon Huntington Beach Seawater Desalination Plant. | Steve Cukrov / Shutterstock

The Poseidon Huntington Beach Seawater Desalination Plant, proposed for the Pacific coast in Huntington Beach, will face a critical vote by the California Coastal Commission (CCC) in May.

The controversial desalination project has been in the works for more than two decades, sparking controversy between two competing versions of sustainability.

Writing for the Los Angeles Times, Ian James summarizes the controversy:

The long-running fight over the proposal encompasses contentious issues such as the effects on marine life, power requirements and whether the low-lying site is vulnerable to sea-level rise, as well as the company’s heavy political lobbying for the lucrative project.

And:

At the heart of the debate, there are fundamental arguments about whether Orange County really needs the water, how the area should adapt to worsening droughts with climate change, and whether the costs would be a reasonable investment to secure reliable water or an exorbitant megaproject that would mean higher water rates for decades to come.

Leading the opposition, according to James, is a coalition of environmental groups called Stop Poseidon. California Coastkeeper Alliance, California Coastal Protection Network, Orange County Coastkeeper, and the Surfrider Foundation, comprise the coalition, along with others.

The feature-length article provides a lot more detail about the debate ahead of next month’s historic vote by the CCC.

Planetizen coverage of Poseidon Water:

Friday, April 22, 2022 in Los Angeles Times

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 4, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

White and yellow DART light rail train in Dallas, Texas with brick building in background.

DARTSpace Platform Streamlines Dallas TOD Application Process

The Dallas transit agency hopes a shorter permitting timeline will boost transit-oriented development around rail stations.

May 28, 2025 - Mass Transit

Sun rising over downtown Los Angeles with tall palm trees visible in foreground. Image is bright orange-red indicating extreme heat.

LA County Creating Action Plan to Tackle Extreme Heat

Los Angeles County is creating a Heat Action Plan to help communities stay safe during extreme heat, with steps like adding more shade, improving buildings, and supporting the neighborhoods most at risk.

1 hour ago - Los Angeles County Chief Sustainability Office

Small silver car driving over wide soeed cushion on asphalt road.

Maryland Plans Quick-Build Complete Streets Projects

The state will use low-cost interventions to improve road safety in five Maryland counties.

2 hours ago - Fox Baltimore

Nighttime view of downtown Los Angeles through arches of new 6th Street Viaduct.

Downtown Los Angeles Gears Up for Growth

A new report highlights Downtown L.A.’s ongoing revival through major housing projects, adaptive reuse, hospitality growth, and preparations for global events in the years ahead.

3 hours ago - Los Angeles Downtown News

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.