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Improvements in your area

We're currently carrying out the following long-term improvements.

Upgrading Slough Sewage Treatment Works

We’re upgrading Slough Sewage Treatment Works (STW) to increase capacity, enhance performance and improve the quality of water that’s returned to the environment.

This will involve upgrading the existing plant, building new treatment tanks, and putting in new treatment technology.

We’re also building a new below ground outfall pipeline to take some of the treated water and storm flows from the STW to the River Thames.

Improving water quality at Heath Lake

Heath Lake is a 2.8 hectare lake within an area of woodland and heath, north west of Crowthorne.

It’s the only acid lake in Berkshire and has historically supported several rare aquatic plants. A designated Site of Special Scientific Interest, it’s owned and managed by Wokingham Borough Council.

The lake and its surrounding woodland provide the local community with superb access to nature, with a variety of walking routes through the lake and nature reserve.

New water main in Greenwich

We’re laying a new water main to transport water across East London, running from Deptford to the Greenwich Peninsula. Around 4km in length, this new water main will serve both existing and new customers in the area.

Our work in Dartmouth Park

We’re carrying out upgrade and improvement work to Dartmouth Park Reservoir. This will also fix the problem with paths cracking in the park.

Biomethane installation at Deephams Sewage Treatment Works

This project will allow us to use the leftover gas from our sewage treatment process to heat local homes with renewable energy. It will also be a big help in our plans to become a carbon negative business by 2040 with the first milestone: net zero 2030.

Protecting water supplies from Seven Sisters Road to Myddleton Avenue

Since 19 October 2020, we’ve been working hard to rehabilitate 600m of our 36-inch water mains between Seven Sisters Road and Finsbury Park Road in Hackney, London. We’re using a technique called ‘relining’ which involves pulling 600m of new pipework through the current pipe to reline it.

We recently sent customers living in affected areas letter informing of a delay to our work and outlining the improvements we're making, along with how we'll be working to minimise disruption.

Please always check here for the most up-to-date information.

Upgrading Beckton Sewage Treatment Works

We’re upgrading the site to ensure it can treat the sewage of up to 4.4 million customers and accommodate flows from the Thames Tideway Tunnel, which is due for completion in 2024.

We expect the work to start in March 2021 and to be completed by the end of March 2023.

How will the work affect me?

We'll carry out our works on site between 7am and 7pm Monday to Friday and 7am and 1pm on Saturdays. We may occasionally need to work outside these hours to complete a specific activity, but this will be kept to a minimum and we don't anticipate this affecting local residents.

There may be some increased site traffic into the site and along Eric Clarke Lane. We'll manage this via the A14 and Jenkins Lane.

How can I learn more? 

Look at our information pack for more details. We’ll write to keep businesses and residents in the area updated with any changes to our work.

Improving sewage treatment processes at Beddington

Beddington Sewage Treatment Works is a large site in Sutton treating the wastewater of 360,000 people.

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