Skip to Content

Search

We regulate the water sector in England and Wales

About us
- - - About us
      
      This section of the website sets out how we will work with others for the benefit of customers of water and wastewater services and wider society in England and Wales both now and in the future.
- - - Who we are
    - Careers at Ofwat
Regulated companies
- - - Regulated companies
      
      In this section you can find information for and about the water companies we regulate.
- - - Open data in the water industry
Residential customers
- - - Residential customers
      
      In this section of the website you can find information about water and sewerage supply to household consumers.
  - - Discover water dashboard
Business customers
- - - Business customers
      
      In this section of the website you can find information about water and sewerage supply to businesses, charities and public sector organisations.
  - - Choosing your water retailer
    - Developers
Investors
- - - Investors
      
      In this section you can find information for investors in water companies.
  - - Contact
- - - PR24
Publications
Consultations
Search

Search Ofwat by keyword

Home > Regulated companies > Investigations > Closed cases > Guaranteed standards regulations cases

< Investigations

Older cases

Available from The National Archives

Find out more...

Guaranteed standards regulations cases

Determinations made under the Guaranteed Standards Regulations

GSS dispute: Mountain Ash Golf Club and Dŵr Cymru

Subscribe for monthly updates of our latest news and content

Careers

Working for Ofwat
Job vacancies

General

Contact us
Press Office

Quick links

Publications
Consultations
Investigations
Blog

Useful links

CCW
Drinking Water Inspectorate
DEFRA
Water UK

Information for

Regulated companies
Residential
Businesses
Investors

© Ofwat 2021

Privacy policy
Cymraeg
Cookies
Accessibility
Freedom of Information