(2) The term of office of a member shall be four years. Before the expiration of the term of a member, the Governor shall appoint a successor to assume the retiring member’s duties on July 1 next following. A member shall be eligible for reappointment, but no member shall serve more than two consecutive terms. In case of a vacancy for any cause, the Governor shall make an appointment to become immediately effective for the unexpired term. The members of the commission shall serve at the pleasure of the Governor.

(3) For purposes of appointing members under subsection (1) of this section, the drainage basins of the state shall be divided into the following regional river basin management areas:

(a) Upper Northwest Region, consisting of the Lower and Middle Willamette, North Coast and Sandy drainage basins and that portion of the Columbia River drainage basin below Bonneville Dam.

(b) Southwest Region, consisting of the Rogue, Klamath, Goose and Summer Lakes drainage basins and that portion of the South Coast drainage basins south of the mouth of the Rogue River.

(c) West Central Region, consisting of the Umpqua, Mid Coast, Upper Willamette and that portion of the South Coast drainage basins north of the mouth of the Rogue River.

(d) North Central Region, consisting of the Umatilla, John Day, Hood and Deschutes drainage basins and that portion of the Columbia River drainage basin above Bonneville Dam.

(e) Eastern Region, consisting of the Owyhee, Malheur, Grande Ronde, Malheur Lake, Middle Snake and Powder drainage basins.

(4) A member of the commission is entitled to compensation and expenses as provided in ORS 292.495. [1985 c.673 §3; 1995 c.548 §1]