Change proposal 004 – Sewerage sector documents – Design and Construction Guidance modification - Final decision
| Date | 16 February 2022 |
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Code for Adoption Agreements
1
Sewerage sector documents: Change proposal (Ref 004)
Modification proposal
Design and Construction Guidance: Add new sub-clauses for
plastic corrugated wall arch structures for below stormwater
attenuation and storage applications
Independent Sewerage
Adoption Panel
Recommendation
The Panel recommended approving the change proposal
Decision
Ofwat has approved this change proposal using the wording
recommended by the Panel with a minor grammatical
adjustment,
Publication date
16/02/2022
Implementation date
01/04/2022
Background
ADS Europe BV (ADS) submitted this change proposal on 3 September 2021 to the
Independent Sewerage 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
sewerage sector guidance and model sewerage 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 April 2020. A change proposal is defined in the Code as a proposed change to the sector
guidance or the model adoption agreements.
ADS has requested that a change be made to the Design and Construction Guidance (DCG)
set out in Appendix C to the sewerage sector guidance, which is used by developers when
planning, designing and constructing foul and surface water drainage systems (including
pumping stations and rising mains) intended for adoption under an agreement made in
accordance with Section 104 of the Water Industry Act 1991. Specifically, ADS has requested
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