Work has been completed on a £250 million sewage treatment works upgrade in Enfield.

The upgrade to Deephams Sewage Works, which serves one million people, has increased renewable energy generation on site from a new combined heat and power plant, with the carbon footprint of the works reduced by a third.

The works are also designed to boost river quality, reduce odour and cater for predicted population growth.

Due to the creative, sustainable and innovative thinking behind the project at Thames Water’s Deephams Sewage Works, it was awarded the prestigious ‘Greatest Contribution to London’ award at the ICE London Civil Engineering Awards this summer.

Martin Hoff, Thames Water’s head of major projects, said: “We’re all incredibly proud of the upgrade to Deephams. While many of the customers it serves may not have noticed anything while the work was taking place, it is going to make a big difference now and for the future.

“As a result of our investment, the site is now more sustainable and ready for the future challenges of population growth and climate change.”

The project was delivered by Thames Water’s collaborative relationship with the AMK Joint Venture comprising of AECOM, J Murphy and Sons and Kier Infrastructure.

Councillor Nesil Caliskan, leader of Enfield Council, added: “Thames Water’s investment in this incredibly important plant not only supports Enfield’s residents and businesses, but will continue to support the ongoing growth and future demand we expect to see in the borough.

“In addition, the significant modernisation to the infrastructure will, in short, improve the environment and quality of life for those living in the immediate catchment area.

“I would also like to applaud the close cooperation of Thames Water and the Enfield Council (Development Management Team) throughout the planning of this key infrastructure improvement project.

“It’s my desire that all Enfield residents have decent, well-connected places to live in and this investment of £250m by Thames Water will make a marked contribution to this aim.”