Change proposal 005 - Water sector documents - Modification to water sector guidance Appendix G: : Levels of service: Change of metric definition (S4/1) - Final decision

Date23 March 2022
Centre City Tower, 7 Hill Street, Birmingham B5 4UA
21 Bloomsbury Street, London WC1B 3HF
www.ofwat.gov.uk
Code for Adoption Agreements
1
Water sector documents: Change proposal (Ref 005)
Modification proposal
Appendix G to the water sector guidance: Levels of service:
Change of metric definition (S4/1)
Independent Water Adoption
Panel Recommendation
The Panel recommended approving the change proposal
Decision
Ofwat has approved this change proposal
Publication date
23/03/2022
Implementation date
01/04/2022
Background
Fair Water Connections (FWC) submitted this change proposal on 26 July 2021 to the
Independent Water Adoption Panel (the Panel), with the Panel publishing the proposal on its
website on the same day. The function of the Panel is to consider change proposals to the
water sector guidance and model water adoption agreement which apply to companies
operating wholly or mainly in England. These documents were developed by companies as
required by the Code for Adoption Agreements (the Code) and came into effect in January
2021. A change proposal is defined in the Code as a proposed change to the sector guidance
or the model adoption agreements.
FWC has raised a concern with the current wording of one of the levels of service metrics set
out in Appendix G to the water sector guidance. Water companies must comply with the
levels of service metrics in the performance of activities related to the delivery of self-lay
schemes. Specifically, FWC has requested a change be made to self-lay performance metric
(SLPM) S4/1 (source of water delivery date). When a self-lay provider (SLP) constructs new
water assets, it is required to undertake water quality testing in order to demonstrate that
the assets do not contaminate the water supply before the water company will adopt the
assets. In order for a SLP to undertake the necessary water quality testing, it requires a
source of water to be provided by the water company. SLPM S4/1 currently requires the water

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