Sustaining high-quality water from Testwood

What are we doing?

Following a £41 million initial investment to stabilise existing assets and upgrade site resilience, we’re investing another £160 million to upgrade and replace assets across the site. 

This work will make sure that Testwood Water Supply Works, which supplies over 250,000 customers, can operate effectively and efficiently well into the future providing our customers with high-quality drinking water.

* Investment amount

£160 million for this phase of the work. The first phase received a £41 million investment 

Useful information for residents and visitors

We’ll continue to supply water as normal for the duration of this scheme, with no planned interruptions.

You may notice a slight increase in traffic entering and leaving the site while we carry out improvements, but we’ll be working hard to avoid causing any disruption.

Contact the Capital Projects Customer Team

You can email the Capital Projects Customer Team at capitalcomms@southernwater.co.uk. They will always get back to you within 5 working days, but usually less.

Alternatively, you can call Southern Water on 0330 3030 368. Just tell us you’re calling about Capital Projects, with Project Reference Number (PRN) 795023, so we can help you more quickly.