This website uses cookies. Cookies are text files that websites place on your computer to collect information about your visit. Find out how we use cookies and how to switch them off here: Cookie Policy

Ardersier - Planned Waste Water Upgrade


For around 40 years, Scottish Water has operated a waste water treatment works at a site outside Ardersier. This essential facility is used to treat waste water collected from the village, as well as from homes and the businesses in the wider area - including Inverness Airport and a number of small settlements including Tornagrain and Fort George.  Once the waste water has been treated at the works, it is safely returned to the environment via an outfall pipe to the Moray Firth.

Scottish Water is delivering improvements to our essential waste water infrastructure in the area. The purpose of these works is to meet the needs of housing and economic growth in the area – including Tornagrain, Inverness Airport and Castle Stuart - while protecting and enhance the environment of the Moray Firth. 

We are doing this through:

  • An expansion of the existing waste water treatment works within Scottish Water’s land to enable the facility to process an increased volume of waste water as a result of these growth projects.
  • Installing a new underground pipeline to transfer waste water from these developments to Ardersier Waste Water Treatment Works.
  • Installing ultra violet treatment equipment within the existing site - this will improve the disinfection of the waste water which comes into the facility. While the Ardersier waste water treatment works has served the area well for many years, we are required by our environmental regulator, Scottish Environment Protection Agency (SEPA), to improve the quality of the treated water which is safely returned to the environment. The main reason for doing this is to protect the bottlenose dolphins and help improve the quality of the water in the Moray Firth. Work on installation of the ultra violet treatment equipment has now commenced. This follows confirmation that all pre-commencement planning conditions – set by Highland Council – have been satisfied.
  • Extending the existing outfall pipe, near Fort George, by 300 metres - this will take the discharge of treated waste water further out to sea and into deeper water.

We hope to start laying the new pipeline and the growth project at the waste water treatment works in early 2017. We will write to all properties in Stuart Street 4 weeks before we start laying the pipeline there and we will visit individual customers 2 to 4 weeks before we carry out work outside their property. This is to discuss matters such as access, parking, deliveries, bin collections, the diversion of bus routes etc and to carry out external (and internal if required) surveys. We will also visit all businesses to discuss how we can minimise the impact of the construction work.

The below map shows the route of existing and new pipes in the area:

Ardersier pipe route map

We are pleased to have had the opportunity to meet many of our customers in Ardersier at information events and meetings in recent months. The feedback given to us has been invaluable in helping to prepare for the work to be carried out and understand ways in which we can minimise the impact on our customers.


Contact Details

If you have any questions or comments please email us at . Alternatively you can call the customer helpline on 0800 0778778

We will be regularly updating this page with new material so please keep checking back for new information

PDF Icon

Traffic Management Route Option Review Report

Preview | Download
Report from the Highland Council looking at the traffic managment route options associated with Scottish Water's proposed upgrade works at Ardersier Waste Water Treatment Works.