La. Roads, Bridges and Ferries § 48:385
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
No industrial wastes, sewage, septic tanks effluent, nor any noxious or harmful matter, solid, liquid, or gaseous, shall be discharged into the side or cross ditches or placed upon the rights-of-way of state highways, without the prior written consent of the chief engineer, or his duly authorized representative, and of the secretary of the Louisiana Department of Health.
La. Roads, Bridges and Ferries § 48:385