Costain has been awarded a significant contract to enhance Thames Water’s wastewater treatment works.
- The upgrades are centred on two major sites, Markyate and Brickendon, in Hertfordshire.
- This initiative is part of a broader £1.12bn programme aimed at improving over 250 sites.
- Construction efforts will address both operational efficiency and environmental compliance issues.
- Completion of these projects is expected by the year 2026.
Costain, a prominent construction and engineering company, has officially secured a £6.6 million contract to overhaul two critical Thames Water treatment sites located in Hertfordshire, specifically at Markyate and Brickendon. This development is set to substantially improve Thames Water’s capacity to handle incoming wastewater, a need underscored by past challenges in wastewater management.
The modernisation project includes comprehensive upgrades to inlet stations, alongside necessary repairs and modifications to existing storm tanks. These actions are crucial for bolstering the infrastructure that supports wastewater treatment, enhancing both efficiency and compliance with environmental standards.
At the Markyate site, the upgrades will be coordinated with Thames Water’s current investigations into how groundwater impacts the sewer network. This alignment is vital for informing long-term strategic planning and ensuring sustainable water management practices. Meanwhile, at Brickendon, similar enhancements are projected to streamline operations and reduce overflow and treatment breaches.
The broader programme, of which these upgrades are a part, is known as the Wastewater Asset Assurance Programme and commands a remarkable £1.12 billion investment. This comprehensive effort aims to remedy issues discovered during Ofwat’s rigorous investigation, which highlighted capacity and operational failures across Thames Water’s network, with approximately 67% of treatment works facing challenges.
Financially, Thames Water faces scrutiny, having been fined £104 million for previous management shortcomings, while also grappling with a substantial debt burden that has exceeded £15 billion.
Despite these financial pressures, the continuation of strategic partnerships with firms like Costain is seen as essential to meeting infrastructure goals and maintaining service standards.
Reflecting on this collaboration, Graham Sugrue, Costain’s Framework Director, expressed optimism about the impact of these projects, stating, “We’ll work closely with Thames Water to apply our skills and expertise to deliver a successful and efficient upgrade of the Markyate and Brickendon sites.” His sentiments were echoed by Thames Water’s Director of Delivery, Andrew Popple, who recognised the importance of such partnerships in delivering value and fostering operational excellence.
Costain’s strategic engagement with Thames Water underscores a commitment to advancing sustainable water management solutions under challenging conditions.
