Wastewater companies have set out their investment plans to tackle storm overflows during the PR24 period. The total investment will top £9 billion with several companies expecting to beat government targets. United Utilities (UU) and Yorkshire Water will make the largest investments in PR24 at £3.1 billion and £1.9 billion respectively due to UU having more combined sewers than most other water companies, coupled with higher-than-average rainfall.