Severn Trent Water (STW) is a major regulated water and wastewater company operating primarily in England and Wales. It is part of the Severn Trent Plc group and is one of the ten largest water and wastewater businesses in the region, serving over 4.3 million households and businesses. The company is committed to providing high-quality drinking water and effective wastewater treatment while protecting and enhancing the environment. Its operational region covers a vast area stretching from the Bristol Channel to the Humber and from North and mid-Wales to the East Midlands.
STW focuses on sustainable water management, aiming to reduce its carbon footprint and improve river and habitat health. It invests heavily in renewable energy and innovative technologies such as robotic leakage detectors and smart networks. The company’s PR24 Business Plan (2025-2030) involves a £12.9 billion investment to secure water resources, improve river health, reduce pollution, and achieve operational net zero carbon emissions by 2030.
Regulatory oversight comes from several bodies including Ofwat, the Drinking Water Inspectorate, the Environment Agency, and the Consumer Council for Water. STW operates under a five-year Asset Management Plan cycle, currently in AMP8 (2025-2030), which mandates significant investment in statutory and enhancement projects to meet environmental and service quality targets.
Severn Trent Water is registered in the EU Transparency Register since January 2016, reflecting its active engagement in EU policy areas such as drinking water quality, circular economy, climate change, renewable energy, smart networks, and novel wastewater treatment processes. The company aims to influence EU legislation and policy to support sustainable water management and environmental protection.
