Table 6 - 6. DWR Submittal Table Methods to Encourage Future Recycled Water Use
6.6 Desalinated Water and Opportunities
Law
10631(g) Describe the opportunities for development of desalinated water, including, but not limited to, ocean water, brackish water, and groundwater as a long-term supply.
In Orange County, locally desalinated water from brackish and ocean water sources have been evaluated as potential alternative water supplies. OCWD has evaluated a formerly proposed 50 mgd seawater desalination facility at a site in Huntington Beach. The formerly proposed desalination facility would have been constructed and operated by Poseidon Resources, a private company. While the project was being considered by OCWD, IRWD made the determination that it had no need for water from the proposed desalination project. In 2022, the California Coastal Commission denied the proposed project’s Coastal Development Permit, effectively stopping the proposed project. Currently, South Coast Water District is in the planning and design phase of its proposed Doheny Ocean Desalination Project. The proposed project could potentially deliver water to adjacent cities and water districts. IRWD is not aware of any additional desalination facility proposals in the area at this time.
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IRWD – 2025 Urban Water Management Plan
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