If you wish to offer any newly-constructed or existing sewers and pumping stations for adoption, our team of engineers will assist in guiding you through the process, and will ensure that the assets meet the required standards to allow them to be adopted as public sewers.
We have also created a handy site sewer construction guide (PDF 3,675 KB opens in a new window) for contractors and operatives who are constructing sewers, which offers advice on how to avoid some common site errors.
Sewers can be offered for adoption to United Utilities or to a new appointee. New Appointees (NAV), can provide wholesale water and/or sewerage services for a specified area. If a developer chooses a NAV to provide wholesale services the NAV will need to apply to become a service provider for a specified area. Once granted they will be responsible for the ongoing operation and maintenance of onsite water and/or wastewater infrastructure replacing the existing local water and/or sewerage company.
Adopting new sewers
Under Section 104 of the Water Industry Act 1991, a developer can apply to transfer ownership of their newly-constructed sewers to United Utilities by way of an ‘Adoption’ agreement (PDF 514 KB opens in new window).
Our Guide to Making a Section 104 application (PDF 116 KB opens in a new window) provides all of the information that you need to offer new sewers for adoption. To apply for a new sewer adoption, please complete our S104 application (PDF 503 KB opens in a new window) and for further information regarding your design, please see our Technical Guidance (PDF 143 KB opens in a new window).
All applications will be technically assessed to make sure that they meet specific industry standards. For our requirements for technical drawings, please see our standard construction details document (PDF 2,181 KB opens in a new window). Our new S104 support guide (PDF 5372 KB opens in a new window) provides example drawings that make up an application, it shows how information should be provided for a variety of technical plans and also highlights the critical design checks that need to be satisfied so that we can cover the sewers under an adoption agreement.
Changes to the standards for the construction of new foul sewers and lateral drains have been proposed. However, until the new ‘Mandatory Build Standards’ are agreed and implemented, we will continue to work with Sewers for Adoption – 6th Edition, which is published by the Water Research Centre whose website you can get to here.
Further legislation, Section 42 of the Floods and Water Management Act, confirms that, in future, a Section 104 adoption agreement must be in place before any new sewer can be connected to the existing public sewer network. As yet, a date for this change has not been agreed.
If you have any further queries about sewer adoptions, please contact the team at SewerAdoptions@uuplc.co.uk
Adopting existing sewers
Under Section 102 of the Water Industry Act 1991, the owner of an existing private sewer can apply to transfer ownership of their sewer to United Utilities.
Our S102 sewer adoptions guide (PDF 98 KB opens in a new window) provides all of the information that you need to offer existing sewers for adoption. To apply for an existing sewer adoption, please complete the application form (PDF 122 KB opens in a new window).
If you have any further queries about sewer adoptions please contact the team at SewerAdoptions@uuplc.co.uk
Adopting pumping stations
Our team of Developer Engineers will assess all submissions for the adoption of pumping stations against Sewers for Adoption – 7th Edition & the latest version of the United Utilities Pumping Stations Addendum document (PDF 1,956 KB opens in a new window).
The pumping station is usually covered under the same Section 104 agreement as the gravity sewers on the development.
If you have any further queries about the adoption of pumping stations, please contact the team at SewerAdoptions@uuplc.co.uk