The Water Resources Commission shall not have power:

1. (1) To interfere with, supervise or control the internal affairs of any state agency or public corporation;
2. (2) To modify, set aside or alter any existing right to use water or the priority of such use established under existing laws; or
3. (3) To modify or amend any standard or policy as prescribed in ORS 536.310 nor to adopt any rule or regulation in conflict therewith.

[1955 c.707 §10(4)]