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The making of Glencorse Water Treatment Works now serving Edinburgh



Read the film transcript here

The new Glencorse Water Treatment works is now delivering clearer, fresher drinking water to up to 450,000 customers across Edinburgh and parts of Midlothian. It has replaced our Fairmilehead and Alnwickhill treatment works, which despite having served the city well for over a hundred years, are now at the end of their operational life.

Glencorse will serve the city, supporting its economic growth and development for decades to come, meeting the needs of tourism, business and industry as Edinburgh continues to prosper and grow.

Glencorse from the air

The £130 million project, which was delivered on time and under budget, has sustainability at its core. The facility has the largest ‘grass’ roof in Scotland, blending the state of the art treatment works into the surrounding Pentland Hills. The grass roof was sown with a mix of indigenous plants and grasses, providing a similar habitat for local animal, bird and insect life.

Glencorse is fed from our reservoirs in the Borders, delivering this precious natural resource using the force of gravity. As it enters the works, it turns a hydro turbine which provides almost half of the facility’s energy needs. Treated water is then piped directly into Edinburgh using this same natural force of gravity.

In a world first a mobile pipeline production plant was ‘dropped’ onto the route of the 8 kilometre pipeline which would link the new site with our existing network in the Capital. Pipes were produced on site and rolled directly into the ground. The pipeline even snaked underneath one of Scotland’s busiest roads, the Edinburgh City Bypass, without disturbing the thousands of commuters who use the road daily.

Glencorse has helped to leave a living legacy for hundreds of young people, inspiring local primary school children towards careers in construction, engineering and environmental management. Youngsters planted 60 oak trees which will further camouflage the works into its surroundings.


Glencorse grass roof looking towards the Pentland Hills

The project delivery team would like to thank the local community for all their support throughout the consultation, construction and commissioning of the Glencorse Water Treatment Works.



Our Clearest freshest dring water advertising the opening of Glencorse WTW