The CMDP joint venture between Costain and MWH Treatment has secured improvement contracts worth £65m from Southern Water.
The work will improve water supply resilience and upgrade wastewater treatment works at Testwood near Southampton, and Burham, Kent. The investment is part of Southern Water’s seventh asset management period (AMP7).
Testwood Water Supply Works will be refurbished. Improvements will be made to abstraction points from the River Test, pumping stations, and flow and filtration assets. Rapid gravity filtration facilities will be upgraded and contact reservoir tanks repurposed.
At Burham Water Supply Works, a full refurbishment will be undertaken on the low lift pumping station, granular activated carbon filters, and site-wide chemical dosing upgrades. The joint venture will also make upgrades to improve resilience, such as increasing the usable volume of the lake feeding the site.
CMDP-JV programme director Chris Hodgson said: “This is important work that will have a transformative impact on the lives of residents and local communities.”
