The BAM Nuttall and Doosan Enpure joint venture has been awarded a five-year contract to design, construct, and commission a new sewage treatment works for Thames Water in Guildford. The works will replace the current sewage treatment facilities, enabling Guildford Borough Council to develop 1,500 high quality homes, boosting local job opportunities, and benefiting many families in and around the Surrey area.

The new works will be constructed at Slyfield Industrial Estate on land previously used as landfill, approximately 0.7 km from the existing premises. The new treatment site design leaves space for future expansion to cater for Guildford’s growing population. The project is expected to be completed in 2026.

The project will include the construction of a 1.5km, 1,500mm diameter tunnel to transport the sewage from Guildford’s existing sewer network to the new site. The work comprises of preliminary, primary, secondary, and tertiary treatment stages to meet environmental requirements. The treated water will then be discharged to the River Wey via a newly constructed outfall.

Martin Bellamy, Managing Director, at BAM Nuttall, said ‘This collaborative contract is directly aligned with our strategy ‘Building a sustainable tomorrow’ providing vital infrastructure for the people of Guildford. We are thrilled to be involved in this fantastic project and look forward to working with our partners Doosan and Thames Water to deliver it safely.’

Avtar Jirh, CEO of Doosan Enpure, commented ‘We are delighted to have been awarded this prestigious project with our partner BAM Nuttall and look forward to working for Thames Water again.’ Francis Paonessa, Thames Water’s Capital Delivery Director, said ‘We’re excited to be working with BAM Nuttall and Doosan Enpure to provide the best services for Guildford’s residents now and in the future. 

‘As well as creating space for new homes in the town, the scheme will allow us to build a modern sewage works which will be able to support Guildford’s growth in years to come. 

‘This will be the first new sewage works to be built by Thames Water since Reading STW opened more than 15 years ago and shows our commitment to constantly improving the service we offer our customers.’

Ends