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New Appointment and Variation (NAV)

New Appointment and Variation (NAV)

A new appointment is made where a limited company is appointed by Ofwat to provide water and/or sewerage services for a specific geographic area. 

A variation is where an existing appointed company (an “appointee”) asks Ofwat to vary its appointment so it can extend the areas it provides services to. A new appointee has the same duties and responsibilities as the previous statutory water company. 

A NAV therefore involves one company replacing another as the appointee for a specific geographic area. In order to make your application to Ofwat for the new appointment, you’ll need some information from the Company as the incumbent water and/or sewerage company. If you’re looking to make a bulk connection with our network(s), we can also help you set up the bulk agreement(s), arrange for any site-work and set you up as our customer.  

A site will be eligible for applying for a new appointment and variation if it is: 

  • unserved; 
  • for a large user; or 
  • given consent by the incumbent water and/or sewerage company. 

For more information on how to apply for a new appointment or variation please see the Ofwat guidance

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