As supporters and opponents of a proposed Huntington Beach desalination project gear up for a key meeting before the State Lands Commission, U.S. Sen. Dianne Feinstein has weighed in. In a letter to the Commission, the senior senator from California gave her endorsement to the Poseidon Water project, saying it would ” provide potable water to meet documented demand within Orange County.” Feinstein joins a long list of state political and water officials leaders, including former Senate colleague Barbara Boxer, in support of the proposed $1 billion plant to be built by Poseidon Water to provide 50 million gallons per day or enough for 400,000 residents.