Severn Trent (LSE:SVT) received a clean financial outcome from Ofwat on 8 July after the regulator closed a wastewater enforcement investigation launched in 2021 without levying any penalty against the company.
Ofwat acknowledged that Severn Trent's proactive investment in wastewater assets ahead of the formal enforcement case, along with strong board oversight and operational controls, set a standard expected across the sector.
The company accepted the identified breaches but said it had begun addressing them before the case formally opened, pointing to a storm overflow monitoring programme it initiated more than a decade ago and a £450 million commitment in 2023 to upgrade storm overflows and storage capacity across its network by 2030.
Severn Trent said average storm overflow spills fell 41% in 2025, and it targets fewer than 14 average spills per overflow per year by 2030.
"We accept Ofwat's findings relating to issues that we proactively identified and began addressing these before the enforcement case was opened," said James Jesic, Chief Executive of Severn Trent. "By monitoring and investing early to put things right, we are now seeing the benefits."
The company said it has committed to forward-looking undertakings to ensure future compliance, with its spills reduction programme continuing at pace.
