Desalination Deal Draws Criticism from Groups Concerned about Water Affordability. Today Orange County Water District released the terms of a new agreement with Poseidon Water for a corporate desalination plant proposed for Huntington Beach. The agreement would require Orange County ratepayers to buy Poseidon’s costly desalinated water for 30-35 years, while guaranteeing a profit for Poseidon’s investors. (LINK). HIWI042018-06-04T00:29:55+02:00