Esh-Stantec progresses County Durham wastewater treatment works upgrade scheme

A £6.4 million scheme, which will extend and upgrade Northumbrian Water’s wastewater treatment works in Kelloe, County Durham, is progressing following joint venture, Esh-Stantec, being appointed as the design and build contractor.

This WINEP (Water Industry National Environment Programme) scheme is set 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 carried out to the existing pyramidal flow primary settlement tank, the radial flow primary settlement tank, the existing interstage pumping station, and the 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 North of England contractor, Esh Construction, and Stantec, a global provider of sustainable design and engineering services, 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’s 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.”

Work commenced in October last year to stabilise the ground via probe drilling and grouting. Since then, underground interconnecting pipework has been installed along with enabling and excavation works to pave the way for the new tertiary treatment plant, humus tanks and rising main.

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

About Stantec
Communities are fundamental. Whether around the corner or across the globe, they provide a foundation, a sense of place and of belonging. That's why at Stantec, we always design with community in mind.

We care about the communities we serve because they're our communities too. This allows us to assess what's needed and connect our expertise, to appreciate nuances and envision what's never been considered, to bring together diverse perspectives so we can collaborate towards a shared success.

We're designers, engineers, scientists, and project managers, innovating together at the intersection of community, creativity, and client relationships. Balancing these priorities results in projects that advance the quality of life in communities across the globe.

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Media Contact                                               
Calum Metcalfe                                                            
Stantec UK Media Relations
calum.metcalfe@stantec.com

About Esh Construction
Esh Group is a leading construction and built environment group of companies which operate across the North of England and Yorkshire. Through our main trading company Esh Construction, we provide civil engineering, commercial build, affordable housing, refurbishment, and retrofit to a wide range of private and public sector clients.

Led by teams of our experienced professionals, we work collaboratively with our customers and supply chain to find the most creative and innovative ways to deliver outstanding projects. We have an uncompromising focus on health, safety, and quality and continually invest in our workforce and new technologies to deliver the best results for our clients.

Committed to supporting the areas in which we operate, Esh delivers an industry-leading social value package through our ‘Constructing Local’ strategy.

Key Contacts
Victoria McCormick
Head of Communications, Esh Group
07930 983 390
victoria.mccormick@esh.uk.com

Taimar Askew
Head of Digital PR, Mediaworks
07554 000 374
taimar.askew@mediaworks.co.uk