Poseidon water plant permit discussion continued to next week Daniel Selmi of the Santa Ana Regional Water Board makes a point during Friday’s virtual meeting. (Screencap by Matt Szabo) Print Both proponents and opponents of the controversial Poseidon Water desalination plant in Huntington Beach made their voices heard Friday in an all-day virtual meeting that continued well into the night. In the end, however, a decision by the Santa Ana Regional Water Board on whether to permit Poseidon’s $1.4-billion project will have to wait until at least next week. Another meeting is scheduled for Thursday, with a third meeting on May 13, as necessary.