(1) Except as otherwise provided in ORS § 469.300 to 469.563, 469.590 to 469.619 and 469.930, insofar as the authority of the Environmental Quality Commission over water pollution granted by ORS § 448.305, 454.010 to 454.040, 454.205 to 454.225, 454.505 to 454.535, 454.605 to 454.755 and ORS chapters 468, 468A and 468B is inconsistent with any other law, or authority granted to any other state agency, the authority of the commission shall be controlling.

(2) The water pollution control laws of this state shall be liberally construed for the accomplishment of the purposes set forth in ORS § 468B.015. [Formerly 449.070 and then 468.705]