ORS 226.140 — Organization of board; compensation. The commissioners shall organize at a meeting thereof, to be called by the mayor not less than 30 nor more than 60 days after appointment of the commissioners is complete. The mayor shall be chairperson of the board. Whenever a vacancy occurs in the board appointed under ORS 226.120, the proper judge or judges shall fill the vacancy. Commissioners shall not receive compensation for their services as such