Recommended terms for a permit to build Poseidon Water’s controversial desalination plant in Huntington Beach would make it impossible to get financing for the $1.4 billion project, according to the developer.

Regulators question that claim, although they acknowledge that the requirements could create financing obstacles.

Poseidon’s three-year effort to win a permit from the Santa Ana Regional Water Quality Control Board is scheduled to culminate within the next month, with a vote as soon as the board’s April 23 meeting.