The board, or representatives authorized by the board to do so, may call, conduct or attend conferences or hearings, official or unofficial, within or without this state, or otherwise participate in such conferences or hearings with interested persons, agencies or officers, of this or any other state, or with the Congress of the United States, congressional committees, or officers of the federal government, concerning any matter within the scope of the power and duties of the board.
Ca. Water Code § 179.6