The project is expected to complete in 2024. Credit: via Mediaworks

Esh-Stantec wins £6.4m waterworks upgrade

The joint venture has been appointed as design and build contractor for the extension and upgrade of the wastewater treatment works at Kelloe, County Durham.

The WINEP (Water Industry National Environment Programme) scheme is intended to improve the performance of the treatment works, supporting better water quality in Coxhoe Beck, as well as other watercourses downstream.

Procured via Northumbrian Water’s Runway 3 Capital Construction Works framework, the project will include the installation of an Aquazone chemical dosing delivery system, above-ground stainless steel humus settlement tanks, a tertiary treatment plant, and a rising main delivering effluent from the existing biological filters to the new humus tanks.

A package plant will be used within the new tertiary treatment plant. This will include a Denora nitrifying submerged aeration filter and a Eliquo Hydrok Mecana pile cloth media filter.

Refurbishment and upgrade works will be delivered to the existing pyramidal flow primary settlement tank, the radial flow primary settlement tank, the existing interstage pumping station, and final effluent returns pumping station. The current humus settlement tanks and tertiary treatment plant will be decommissioned.

Esh-Stantec is a joint venture formed in 2015 by Durham contractor Esh Construction and global design and engineering services group Stantec, to deliver capital schemes through Northumbrian Water’s Water and Wastewater Infrastructure Framework.

The joint venture secured a place on the Runway 3 Framework in 2021 following its success on the Runway 2 Framework.

David Pratt, Esh-Stantec divisional director, said: “The project marks the first secured by Esh-Stantec via Runway 3, a framework which will help maintain and improve the water and wastewater treatment and network assets across Northumbrian Water’s operating areas.

“As with all Esh-Stantec schemes, we are committed to delivering a customer focussed approach to ensure all residents are kept fully up to date with progress throughout. We will also work within the community to create a legacy through a programme of social value initiatives, including the delivery of STEM and employability sessions in local schools.”

Scott Jackson, regional director of Stantec UK & Ireland, added: “What a fantastic start to our work on Northumbrian Water’s Runway 3 framework. We are passionate about using cutting-edge design thinking to help our clients provide real benefits for communities and this project ensures we do just that, while improving the water quality entering our watercourses.

“Our designs will also support our Northumbrian Water in improving levels of performance and efficiency, and we look forward to making the most of our expertise as this project progresses.”

The project is due to be completed in late spring 2024.

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