Scottish Water have submitted a planning application for Leuchland waste water treatment works, Brechin.
The proposals are for the installation of chemical dosing facilities at the water water treatment works costing £2.7 million.
A Scottish Water spokesman said: “Contractors for Scottish Water are working on a £2.7m upgrade of Brechin Waste Water Treatment Works, which will help protect the environment in the River South Esk.
“The investment, which will involve the installation of new equipment, will improve the operability of the waste water treatment works and allow it to meet the Urban Waste Water Treatment Directive.”
Also involved as part of the proposals would be the re-alignment of the access road into the works giving better access into the works.
The existing road at the entrance of the works would be removed and reinstated with new pavement and verges where necessary while existing carriageway into the works will be removed and reinstated with topsoil and grass seeded where necessary.