The state shall vigorously represent its interest before water resource regulation, management, development, and use agencies of the United States, including among others the federal power commission, environmental protection agency, army corps of engineers, department of the interior, department of agriculture and the atomic energy commission, and of interstate agencies with regard to planning, licensing, relicensing, permit proposals, and proposed construction, development and utilization plans. Where federal or interstate agency plans, activities, or procedures conflict with state water policies, all reasonable steps available shall be taken by the state to preserve the integrity of this state’s policies.