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Water Supply: Temperature

Asked by Ayoub KhanIndependentDepartment for Environment, Food and Rural AffairsTabled Answered 2 July 2026UIN 14141

The question

To ask the Secretary of State for Environment, Food and Rural Affairs, what discussions her Department has had with water companies on ensuring continuity of water supplies during prolonged periods of extreme heat.

Answered by Emma Hardy

Water companies in England have a statutory duty under the Water Industry Act 1991 to produce and maintain Water Resources Management Plans and Drought Plans, during in extreme heat. Companies must review and update these plans at least every five years to reflect changing conditions, including climate risks. Where additional investment is required funding proposals are considered through Ofwat’s price review process.

In the Water White Paper the Government set out our commitment to developing statutory resilience standards. Resilience standards will be a key tool in ensuring the water industry is resilient to shocks and pressures, ensuring customer services are protected.

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