Section 43.21A.730 - Office of Chehalis basin(1) The office of Chehalis basin is established in the department. The primary purpose of the office is to aggressively pursue implementation of an integrated strategy and administer funding for long-term flood damage reduction and aquatic species restoration in the Chehalis river basin.(2) The office of Chehalis basin must be funded from appropriations specified for Chehalis river basin-related flood hazard reduction and habitat recovery activities.(3) In operating the office, the department must follow, to the greatest extent practicable, the model being used to administer the Columbia river basin water supply program established in chapter 6, Laws of 2006.