South West Water’s failure to fix leaks ‘putting customer supplies at risk’

South West Water has repeatedly failed to meet targets for reducing leaks and repairing burst pipes. Regulators say this matters because lost water leaves less available for customers when rivers and reservoirs are already under pressure. Leakage is 18.5% above forecast and has increased since the previous year.

The company loses 113.5 million litres each day through its pipes and infrastructure. That is about 45 Olympic swimming pools, and 5.7 million litres more daily than last year. Regulators say rising leakage threatens customers’ security of supply and reduces confidence in the company’s ability to avoid emergency river abstraction.

The risk is immediate in parts of Devon and Cornwall and nearby areas. About 325,000 people and thousands of businesses could face regular supply cuts in coming weeks and months. The regulators require an action plan within six weeks, while the company says it is repairing leaks and taking steps to protect supplies.

Leakage means water escaping from a supply network instead of reaching homes and businesses. It can happen through damaged pipes, joints, fittings or infrastructure. Burst pipes release water quickly, while smaller hidden leaks may waste water continuously. Because this water has already entered the network, it cannot serve customers once it escapes.

A leak reduces the amount of usable water available from each reservoir, treatment works or transfer route. The company must then repair the damage, move more water through the network or find extra supplies. South West Water reports losing 113.5 million litres daily from its pipes and infrastructure. That loss is equivalent to 45 Olympic swimming pools.

Leakage is especially serious during drought because replacement water is harder to find. Reservoirs and rivers are already depleted, and emergency abstraction can damage the environment. The regulators said South West Water’s leakage was 18.5% above forecast and had risen since the previous year.

South West Water is losing 113.5 million litres of water every day from its pipes and infrastructure. That is a striking scale of waste during a severe drought. The regulators’ comparison puts the daily loss at the equivalent of 45 Olympic swimming pools, making the figure easier to understand.

The loss has also worsened. Leakage is 5.7 million litres a day higher than last year. Regulators say it is 18.5% above forecast, and that the company has failed to meet leakage-reduction and burst-pipe repair targets for seven years. The increase means more treated water disappears before it can support customers.

This scale matters because the region needs sustained rainfall to replenish rivers and reservoirs. Storage at Wimbleball, which supplies several areas, is at 16%. As supplies shrink, water lost through leaks increases pressure on households, businesses and the environment, and may force emergency measures such as river abstraction or supply restrictions.

Drought reduces the water available in rivers and reservoirs. High leakage makes the shortage worse because part of the treated supply disappears before reaching customers. The company must then stretch remaining supplies further, ask customers to use less, or consider emergency abstraction that can harm rivers and wildlife.

The article gives a clear example in Devon. Storage at Wimbleball reservoir is at 16%, while South West Water loses 113.5 million litres daily. About 325,000 people and thousands of businesses in Exeter and mid and east Devon are at risk of supplies being regularly cut off over coming weeks and months.

The consequences extend beyond inconvenience. Supply restrictions could lead to school closures and economic losses. South West Water has urged households to reduce usage, but regulators say the company’s rising leakage makes supply security less reliable. Without sustained rainfall, repairs and stronger controls on demand, drought pressures may continue and emergency environmental damage may become more likely.

Ofwat is the economic regulator for water companies in England and Wales. The Environment Agency oversees environmental protection and water resources in England. Defra is the government department responsible for environmental policy, including water and drought policy. Their roles overlap when a private company’s performance affects both customers and the environment.

In this case, the three bodies jointly warned South West Water that leakage was 18.5% above forecast and rising. They said the company was failing to meet targets for leakage reduction and burst-pipe repairs. Their letter connected this performance to customers’ security of supply and possible environmental damage from emergency river abstraction.

The article states that they required South West Water to report an action plan within six weeks. It does not detail every enforcement power used or available. Their warning shows that private ownership does not remove public oversight, especially when drought, customer protection and river health are involved.

Reservoirs store water for treatment and distribution when rivers and rainfall cannot meet demand. During a drought, low rainfall reduces river flows and reservoir inflows. Low storage also means there is less protection against further dry weather. Rebuilding supplies takes time because rainfall must soak into catchments and refill rivers and reservoirs.

Wimbleball reservoir illustrates the problem. It supplies South West Water customers across Devon, Somerset and west Dorset, plus Wessex Water customers in west Somerset. Its storage is at 16%. The Met Office has said 120% of typical rainfall over seven months is needed to bring the country fully out of drought.

Recent rainfall has improved resources, according to South West Water, but the company says pressure remains significant. Rain must be sustained and fall in the right places. Until storage recovers, customers may face restrictions, and the company may rely more heavily on moving water, repairing leaks or emergency abstraction, which regulators warn could damage rivers.

Managing water resources means matching available supply with customer demand. Companies need to maintain pipes, repair bursts and reduce leakage so treated water is not wasted. They may also ask customers to use less or move water around the network. These actions matter most when drought reduces the water naturally available.

The article shows the competing pressures. South West Water is urging households to reduce use, while regulators are demanding planned leakage reductions. The company says it is repairing leaks and moving water around its network. At the same time, regulators warn that emergency abstraction from rivers could cause environmental damage, so extracting more water is not a risk-free solution.

Reservoir levels make the balance harder. Wimbleball is at 16%, and severe drought affects parts of the region. Good management therefore requires reliable infrastructure, restrained demand and protection for rivers and wildlife. The company’s required action plan will show how it intends to reduce losses and strengthen supplies.