Our improvements at Bolton Wastewater Treatment Works
We have invested £110 million at Bolton Wastewater Treatment Works, making major enhancements to the treatment process and providing extra capacity within the site, allowing us to treat higher volumes of wastewater and reduce storm overflow into the River Irwell.
We have installed innovative technology and equipment to treat the used water to higher standards and relocated a storm outfall and pipeline. Environmental benefits were achieved in spring 2025 with full project completion expected spring 2026. We're also investing to improve asset resilience at both Bury and Rossendale Wastewater Treatment Works, which will contribute to improving water quality in the wider Irwell Valley Catchment.
Helping to support others who care for our rivers
Our Community Fund is open for applications and could support your community project or grassroots organisation with up to £2500 worth of equipment. Visit our web page to find out more.
Get in touch about the project
If you have any queries, please get in touch, quoting 80062052. You can either call us on 0345 672 3723, or if you prefer, you can contact us via our social media channels. We’ll be happy to help!