Rothbury STW Upgrade

This investment at Rothbury sewage treatment works is to improve storm storage and biological treatment to meet the demands of an increasing population in the catchment of Rothbury. Our sewage treatment works aids NWL in improving the quality of rivers and coastal waters for the benefit of people, the environment and wildlife.

Project updates

Update by Kevin McGargle

Good evening

I just thought id give you a quick update to the progress made this week. We have completed the site compound and are ready to receive the site cabins which are due Monday 28th over 2 days, thereafter we will be seeing increased plant and wagon movements whilst we have stone deliveries and construction equipment as we now move down to the proposed new extension of the sewerage works. Herras fencing installation is ongoing following the completion of the stockproof fencing around the permieter to segregate the horses from construction activities.

I have attached a couple of photos for your perusal, should you have any queries please dont hesitate to contact us on site, it has been a pleasure talking to passers by who have shown an interest in the works activities so far.

Kind Regards

kevin McGargle

Site Manager

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Update by Sarah Jayne Parvin

Good afternoon, I hope you are well.

We want to give you an update on the progress we have made so far since starting on site this week. 

Repair work along the access road from Mill Lane, to fill the pot-holes was complete early in the week. Excavation work has begun to level the area for the new site compound and will be ongoing until Tuesday next week, it will then be topped off with stone ready for the main site cabins to arrive on the 28th of June.

We are expecting deliveries of stone throughout the day, starting this Friday and continuing through Monday and Tuesday next week.

There are some pictures below of the work so far.

If you have any question please leave a comment below.



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Update by Sarah Jayne Parvin

Good Afternoon,

You should have received a letter earlier this week informing you that our work is due to start 14th June for up to 13 months.

I thought I would take this opportunity to introduce you to our Mott MacDonald Bentley team.

I am Sarah Parvin, Customer Liaison Officer and I will take care of all customer enquiries during the project. You will notice I will be blogging a lot, so please feel free to comment below.

Jason Bradley is our Contract Manager who will be overseeing the project, and then Kevin McGargle, our Site Manager. Kevin will manage the day to day operations. Jason and Kevin hold many years of experience in the construction industry. We all have worked on various projects together with Northumbrian Water.

Work starts on site on Monday 14th June, setting up our site compound at the treatment works.  Monday, Tuesday and Wednesday, there will be an increase in vehicles using Mill Lane, taking materials and cabins to the site. A 10 mile an hour speed limit has been introduced and signage posted along the lane. If you usually park your car along Mill Lane, please be mindful that this is a site access and allow enough room for vehicles to access the treatment works.  People will be notified when they are planned wide load deliveries or large plant deliveries to the site so vehicles can be moved for these.

Regular updates will be posted throughout. If you have any questions in the meantime, please don't hesitate to ask.



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Update by Ian Davison


I hope you are well and have enjoyed the sunny weather over the Bank Holiday weekend. I can confirm that the treatment work improvement work will commence on 14th June 2021 as planned.

Our supply partner Mott MacDonald Bentley (MMB) will undertake this construction work. We are proposing the construction of two new radial flow primary tanks, the refurbishment of the inlet works, new sludge tank, the refurbishment of the existing storm tanks, two new tertiary treatment units, full site electrical upgrade, remedial works on the biological filters, land acquisition and site fencing.

Access to the site is via Wagtail Road leading onto Mill Lane, a narrow public highway. Wagtail Road and Mill Lane will remain open to the public throughout the construction works, Wagtail Road is used for resident parking with the potential to restrict delivery access. The site team will let you know before the delivery of key equipment, we would kindly ask that on these dates access is not restricted by parked vehicles.

We anticipate that our work will take up to 14 Months with completion anticipated in July 2022 however, as with all large scale civil engineering construction projects unexpected delays can sometimes occur. I would like to thank you for in advance for your cooperation while we complete this essential work

If you have any questions please don’t hesitate to get in touch.

Kind Regards,


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Update by Ian Davison

I would like to take this opportunity to introduce you to our team and project.

I am Ian Davison Northumbrian Water Project Manager and I will be looking after this scheme through to its completion. The scheme will be delivered by Northumbrian Water’s delivery partner MMB. 

Starting Spring 2021 we will be carrying out construction works at Rothbury sewage treatment works to improve storm storage and the biological treatment process. To prevent further deterioration it is likely that some localised improvements will need to be made to the access track along Mill Lane between Wagtail Lane and the treatment works. Please be aware that the track will remain open throughout.

As the project develops I will keep you informed about our plans and progress by sharing our proposals with you on this portal. I am very interested to understand your views. 

The team will post regular updates throughout the construction phase of the project and if you have any queries or want to make us aware of any additional assistance you require from us then please use the ‘Contact us’ button at the top of this page or post on this feed.

If you prefer a telephone conversation or require any further information or advice, please contact our Customer Centre on 0345 717 1100 or visit to request a call back from the project team

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