New Appointment Variations

Developers can request that a New Appointment and Variation (NAV) supplies water services to their development.

If you choose to work with a NAV to supply water and/ or waste water services, they will adopt, own and maintain your development network.

To find out more about using a NAV, visit Ofwat’s website.

If you are a NAV and wish to make an application for your wastewater bulk discharge or bulk water supply please complete the form and send to

NAV application forms

NAV Sewer Connection Notification


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New Appointments and Variations

Bulk service application form

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NAV application form - guidance notes

The information we need from you.

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Nav bulk discharge

Agreement form

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Nav bulk supply agreement


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NAV Charging Arrangements


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