Horsley Water Treatment Works Upgrade

A £46M project to upgrade Horsley WTW has now reached a key milestone. We have selected our partners, a joint venture partnership with Doosan Enpure and Interserve Construction, to upgrade the treatment works.

Update by Amanda Hunt

Good Afternoon Horsley

Please accept my apologies for the lack of updates, I am sure you will all understand that the Covid 19 lockdown has thrown us all.

Today we have delivered an update letter to the residents of Horsley regarding some work we are planning to carry out this week. The information in the letter is outlined below.  

We have fewer colleagues available to speak with you due to coronavirus and it may take longer to answer your call on 0345 717 1100 so if you would like more information you can contact the project team by using the contact us button above or by commenting on my post.

Stay safe.



Dear Customer

Work at Horsley Water Treatment Works

As part of our on-going investment to upgrade the works and to secure water supplies into the future, I’m writing to let you know about some additional work this week which may generate some noise from our site.

From 9am on Tuesday 23 June 2020, to 5pm on Thursday 25 June 2020, we will be continually running some additional pumps within the site boundary and this may generate some low level background noise throughout the duration of the work. Please accept my apologies for the short notice in letting you know about this essential work.

We will do everything we can to keep disruption to a minimum and I would like to thank you for your patience as we continue to work within your community. There will be no disruption to your water supply.

If you have any queries about this work, please telephone our customer contact centre on 03457 171100 or tweet us @nwater_care. You can also find out more information as work progresses at and follow the link to the Horsley page.

Yours sincerely

Mike Forster 

Project Manager



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