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's website.
Please click here to contact the team
Pre Development - Point of connection information
If you are planning to connect to our waste water and/or clean water network and you would like to understand the options which are available for the connection and an estimate of the likely cost of the connection before you make a formal application to us, we can provide you with the point of connection information and a budget estimate.
Please click here for more information.
Draft Bulk Supply and Discharge Agreements
Depending on the type of service you will provide we will need to set up bulk supply and / or discharge agreements with you. Copies of our draft agreements can be found on the links below.
Please note that there is ongoing work at industry level to agree standard documentation. This means that, depending on the outcome of the current project which is due to complete by the end of 2019, we may issue revised versions.
Clean Water
Bulk supply agreement: under development
Bulk supply questionnaire: under development
Waste Water
Bulk discharge agreement
Bulk discharge questionnaire
New Connections and Developer Services Charges
Bulk Supply Charges
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How can I contact you?
You'll find all of our contact information here, which includes our most frequently asked questions and our telephone numbers.
Why do I have low pressure?
If you’ve noticed sudden low pressure:There could be a few reasons for this, a burst main for example that is causing a sudden dip in your pressure or flow. You will need to carry out a few checks: Check if the low pressure is only affecting your hot water, this would...
What is a cubic metre?
A cubic metre equals 1000 litres of water. If you’re on a meter, the variable charge from 1st April 2019 for 1 cubic metre is: For water - £1.8477 For sewerage including surface water drainage – £3.5832 For sewerage excluding surface water drainage - £3.1549
What do I do if I have a blocked drain or sewer?
For blockages on a public sewer, please contact us on 0344 346 2020 so that we can confirm responsibility. We’re responsible for maintaining public sewers and we’ll attend within 4 hours to unblock the sewer, free of charge. If you are the homeowner, you are responsible...
Water connections
What do I need to do if I’m planning to build an extension or conservatory?
Our sewers run under ground in streets, gardens, fields and land, so if you're building an extension you will need to check if there is a sewer nearby. We can then make sure that your home and our pipes are protected during and after the build. You can find guidance on...
Does my pipework need to meet with any regulations?
Yes, pipework and plumbing must comply with the Water Supply (Water Fittings) Regulations 1999. These are designed to stop contamination of water supplies by preventing back-flow, back-siphonage and interconnections of water from other sources.
Can I arrange to lay my own water mains and make service connection?
Yes, if you are or are employing an accredited self lay organisation, you can undertake this work. You can agree with us to lay your water mains and connections, however you will need to make an application to do so. You’ll find more details within our Self lay...
How much does a new water connection cost?
We’ll provide you with a quote which will be specific to your connection requirements after we’ve completed a site survey. The quote will be made up of: Connection costs (all work, materials required for us to make connection) Traffic management (depending on the...
Sewer connections
How do I apply for a new sewer connection?
You can complete our sewer connection application form and return it to us by email, the guidance notes contain more information. You’ll need to arrange for a drain to be laid from your property to our sewer. If you need help in locating the closest public sewer, you...
Can I build over a public sewer?
Yes, if your extension or proposed building work is over or within 3 metres of a public sewer or lateral drain, you’ll need to let us know. You’ll need to check our guidance notes to ensure you meet the criteria and if so, complete the Declaration of works form online...
Why do I need permission to build over or close to a public sewer?
We need to approve your proposal of works (even if you have already had planning permission granted) as your building could cause damage or prevent access to the sewer. Some conservatories and minor works don’t always need planning and/or building regulation approval,...
What if my extension was built over a private sewer before 1 October 2011?
If the property was built before the transfer of private sewers to us on 1 October 2011, the works are legal as there would have been no need for approval before this date. There's more information here on building over a public sewer after this date.
Commercial services
What does a CON29DW drainage and water search contain?
The Conveyancing 29 Drainage and Water (Con29DW) is designed to identify any liability that you may incur as an owner and uncover problems that may impact on the property value and lead to expensive maintenance bills. The search contains: An analysis of the risk of...
What public health and environment services do you provide?
Our Laboratory analyses environmental and recreational samples to support businesses in meeting regulatory and public health requirements.
What kind of laboratory tests and services do you carry out?
Our laboratory carries out a wide range of chemical and microbiological tests. We analyse environmental and recreational samples to support business’ meet their regulatory and public health requirements. If you’d like to make an analytical enquiry you can use our online...
Can you test our trade effluent?
Yes. Our laboratory offers an independent analytical service for trade effluents. If you’d like to make an analytical enquiry you can use our online form