Poseidon officials, who’ve spent 21 years working toward approval of a controversial desalination plant in Huntington Beach, had a figurative bounce in their step as they emerged from yet another permitting agency meeting Friday. The Regional Water Quality Control Board remains months away from voting on one of the final two permits needed by Poseidon. But the fact the board staff detailed a specific timeline for the board’s permit process — with a final vote penciled in for Oct. 25 — was seen by Poseidon Vice President Scott Maloni interpreted that as a signal that board geologists, engineers and administrators are confident they can work through outstanding issues.