Howdon STW Upgrade: Improved Resilience

Northumbrian Water Limited are looking to appoint a contractor to construct an upgrade to Howdon Sewage Treatment Works (STW). Some assets on the existing STW require replacing to increase the overall resilience to the site.

Phase 1 (to be constructed under this contract) shall include two new pumping stations to transfer flows (6,200l/sec) from one process area to another and a storm tank.

Estimated Value of Phase 1 - £40m

In addition Subject to clause 50(1)(f) of the Utilities Contract Regulations it is the intention that NWG may direct award Phase 2 of this project to the successful tenderer for Phase 1, due to it being an extension of the original work and consist of similar work activity. Any award of phase 2 would be subject to the satisfactory performance of the successful tenderer for Phase 1 and the ability to agree the price and programme for Phase 2. NWL would retain sole discretion on whether Phase 2 would be directly awarded to the successful tenderer or an alternative procurement was carried out.

The estimated value of Phase 2 is £80m. Phase 2 scope shall include new secondary treatment, final settlement, UV treatment and a storm tank.

NWL reserve the right to award either all or part of each phase of the proposed contracts subject to budget constraints. NWL expects any shortlisted contractors to engage in value engineering with NWL to ensure maximum value can be delivered for the available budget.

NWL are looking to appoint a contractor to work collaboratively in line with NWL's vision and values while driving innovation and efficiency throughout the lifecycle of this project.