Evidence papers for committees at Westminster and Senedd
Dŵr Cymru Welsh Water is open and transparent about its operations, maintaining good working relationships with our five regulators and two governments.
For more information on our five regulators, click here.
Its senior leadership is sometimes invited to give evidence to Committees at the Senedd in Cardiff Bay and Parliament in Westminster.
They actively engage in those sessions both in writing and attending committee meetings to give evidence and answer questions.
You can download copies of that written evidence below.
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Trawsnewid
- Submitted to: Climate Change, Environment & Infrastructure Committee (Senedd).
- Subject matter: Welsh Water’s restructuring programme.
- Date of submission: 21 October 2025
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Reforming the Water Sector
- Submitted to: Environment, Food and Rural Affairs Committee (Parliament).
- Subject matter: Plans to reform the water sector.
- Date of submission: 2 June 2025.
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Storm Response Enquiry
- Submitted to: Climate Change, Environment & Infrastructure Committee (Senedd).
- Subject matter: The impact of Storms Bert and Darragh on Wales.
- Date of submission: 31 March 2025.
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Halting and reversing loss of nature by 2030
- Submitted to: Climate Change, Environment & Infrastructure Committee (Senedd).
- Subject matter: The company’s commitment to protecting and enhancing biodiversity.
- Date of submission: 29 August 2024.
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Water quality and sewage discharges
- Submitted to: Climate Change, Environment & Infrastructure Committee (Senedd).
- Subject matter: How Welsh Water treats wastewater and its effort to improve its environmental performance.
- Date of submission: 17 January 2022.
