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Thames Water

Asked by Barry GardinerLabourDepartment for Environment, Food and Rural AffairsTabled Answered 27 April 2026UIN 129066

The question

To ask the Secretary of State for Environment, Food and Rural Affairs, what the principal statutory duties are of Thames Water Utilities Limited's licence.

Answered by Emma Hardy

Under section 37 of the Water Industry Act 1991 a water company has the duty to ensure the supply of water within its area of appointment and to develop and maintain an efficient and economical supply system for that purpose, as well as to ensure arrangements have been made for maintaining, improving and extending its water mains and other pipes.

In addition, under section 94 of the Water Industry Act 1991, a water company that also holds a sewerage appointment has the duty to effectually deal with the contents of sewers and provide the necessary infrastructure for that purpose.

All water and sewerage companies have the same statutory duties.

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