About the Carlsbad Desalination Project Desalination, often thought to refer only to the removal of salt from seawater, actually removes virtually any mineral and most biological or organic chemical compounds to produce high quality water suitable for drinking. FAQs Poseidon has undertaken an aggressive public education and outreach effort to raise awareness of desalination, the proposed Carlsbad project and the opportunities for public input during the approval process. News about the Carlsbad Desalination Project - clean drinking water for San Diego Register for information about the Carlsbad Desalination Project.



This 50-million-gallon-per-day seawater desalination project will provide a new, local and reliable source of high quality water that meets or exceeds all state and federal drinking water standards.


I do believe this project may be the most significant that we have here in our lifetimes as commissioners.

     - Commission Chairman Marty Montgomery


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  • The project is slated to be operational as early as 2008.
  • It would use state-of-the-art reverse osmosis water treatment technology manufactured in the San Diego region.
  • It would be located adjacent to the Encina Power Station
  • It would provide up to 56,000 acre-feet per year - enough for 300,000 residents - of desalinated water for Carlsbad, Oceanside and nearby communities.