GENERAL PROJECT

Horsley WTW Upgrades

A number of new projects that represent a £33 million investment are due to start at Horsley WTW as it is necessary to upgrade the treatment works in guidelines with the DWI, We have selected out partners Mott Macdonald Bentley (MMB) and Ross-Shire Engineering (RSE) to carry out the upgrades. The works consist of three separate contracts • Detailed design and construction of a new contact tank with associated pipework, sampling and dosing arrangements. NWG currently operate the Treated Water Service Reservoir (TWSR) as a combined storage tank and contact tank. This single compartment tank cannot be taken out of service without shutting the whole treatment works off and does not satisfy the DWI requirements for contact time. Thus, the construction of a new independent contact tank is required to satisfy DWI requirements and allow NWG to take the existing and new tanks out of service for regular maintenance without affecting the works output. The contact tank will be constructed at the South West of the works and will run from 2025 until late 2027 – This will be carried out by MMB • Pipework will be renewed on a pumping station (Birney Hill Pumping Station – BHPS) at the south of the works and on completion of the works will be commissioned and put into service allowing us to abandon the old pumping station on site. This work will will run from April/May 2025 and last for around 12 months - This will be carried out by MMB • Construction of new chemical dosing facility which will include the construction of two number new coagulant tanks approximately 5 – 6 m in height to the North of the site adjacent to existing tanks that are larger in height. This is also due to run from April/May 2025 and last for around 12 months. This will be carried out by RSE

Project updates

Update by Julie Oakley

Dear Customer

We’re planning some further upgrading work in your area

I’m writing to you to let you know about the next phase of work we are planning to carry out at our treatment works at Horsley which will run from 2025 to 2027 and consist of three separate projects.  This work is essential and represents a £33 million investment and will form part of the treatment process, ensuring the quality of the water supplied to 800,000 customers on Tyneside.

A new contact tank will be constructed in the South West of the works and will run from 2025 until late 2027.

Pumping station pipework renewal and commissioning of pumping station at the Southern end of the site which will run from April/May 2025 and last for around 12 months.

Construction of new chemical dosing facility which will include the construction of two number new coagulant tanks approximately 5 – 6 m in height to the North of the site adjacent to existing tanks that are larger in height.  This is also due to run from April/May 2025 and last for around 12 months.

All the work will take place within and directly adjacent to our site boundary and will be undertaken by our supply partners Mott MacDonald Bentley (MMB) and Ross-Shire Engineering. We do not anticipate any disruption for you and, I just wanted to let you know that you may notice increased activity and more heavy vehicles movements from the site but with mitigation in place with vehicular movements avoiding the village, as well as a little more noise from the site.

The early phase of the enabling works for the Contact Tank work has commenced and will be limited to Monday to Friday, 8 am to 6 pm. We expect to complete our work by October 2027.

We are also planning a customer event so you can view and discuss our plans at Horsley Women’s Institute Village Hall on 04th March 2025 between 5.00 PM and 7.30 PM.

Please be assured that your water and wastewater services will not be interrupted while this work is in progress and, as with all work of this type, progress is subject to weather and site conditions.

Thank You

Julie

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