UU works to prevent storm sewage overflows

United Utilities is seeking contractors to install new facilities at Oldham and Royton wastewater treatment works aimed at improving water quality in the River Irk.

The work, which has a budget of between £70m and £80m, is required to meet new final effluent discharge consents at both works and to reduce storm sewage discharges to improve river quality.

UU's solution is to stop full treatment at Royton and transfer flow to Oldham for full treatment, where new secondary and tertiary treatment facilities will be provided. At both sites additional storm storage is required to reduce discharges to watercourse to meet required river water quality standards.

The project will be procured as one contract. The contract comprises the design, procurement, construction, commissioning and operation for a period of time to be determined of new wastewater treatment facilities at Oldham WwTW and Royton WwTW Manchester, together with transfer pipeline and pumping station.

The contract will run for three years. The deadline for expressions of interest is 11 November.

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