(1) When the United States bureau of reclamation or irrigation districts must permit their irrigation waste waters to encroach upon or cross highway rights of way in carrying them to a natural drainage channel or an established waterway or drainage ditch, said bureau of reclamation or irrigation districts shall request permission to do so under the provisions of chapter 47.44 RCW.

(2) Discharge of irrigation waste waters into normal highway ditches will not be tolerated. Property owners will not be permitted to carry waste waters in laterals paralleling and within highway rights of way.