Doheny Ocean Desalination Project

Desalination uses reverse osmosis technology to transform ocean water into high-quality drinking water. Reverse Osmosis

Project Contact

Sonja Morgan
Public Information Officer
South Coast Water District
(949) 499-4555, ext. 3173
Contact Sonja


Information regarding bidding on Doheny Desalination:

South Coast Water District’s Doheny Oceanwater Desalination Project is currently in the planning stages of implementation.  Permitting for the project continues to progress and several project related due diligence studies are currently underway, including an Alternative Power Solutions Study, Configuration Options Study, Third Party Hydrogeology Assessment, and Financial Assessment Report.  Information from these studies will be presented over the next several months for consideration by the District’s Board of Directors in determining potential next steps toward full project implementation.   Currently, if decided that the project is to move forward towards implementation, an alternative delivery approach, such as Design-Build-Operate, is anticipated. For more information contact Marc Serna.

Desalination would provide a reliable, drought-proof and locally controlled safe water supply.

If implemented, the Doheny Ocean Desalination Project would provide high quality, locally controlled and drought-proof water supply while protecting the environment. Currently, South Coast Water District imports 85 to 100 percent of its drinking water, causing vulnerability during droughts, supply shortages and potentially during natural disasters.

Unlike traditional desalination facilities, the Doheny facility would use advanced slant wells that protect marine life by drawing water from beneath the ocean floor. Environmentalists and state regulators prefer this technology. Built into the system being considered by the District is also an energy recovery process, resulting in 45 to 55 percent less energy usage than systems without that feature.

Final Environmental Impact Report

Download the full Environmental Impact Report 



Project Facts

Project Fact Sheet

Frequently Asked Questions (FAQ)

Draft Environmental Impact Report (EIR)