Water Industry - Scottish Government Investment Group - Committed List performance progress report: quarter one 2023-2024

7. Progress in delivering SR15 Completion Projects

SR15 completion projects are reported in each of the water and wastewater portfolios in Sections 4 and 5 of this report. For clarity, all completion projects are summarised in this section. By way of recap, there are two categories of SR15 completion projects:

• Delayed Projects – projects that were expected to complete by the end of SR15 but were impacted by Covid-19, re-optioneering, scope change, construction risk and third-party risk.
• Planned Projects – projects that commenced in SR15 but were always expected to complete during SR21.

Table 1 below summarises the current status of each category.

The remaining investment represents circa 2% of the total SR15 programme.

By way of further explanation:

Delayed Projects

At the end of Q1 2023/24 we had planned to have 83 of the 86 delayed SR15 projects through acceptance (Table 1). 22 have still to achieve Gate 100 acceptance. 3 of these are now forecasting acceptance in Q2 with a further 5 in Q3 and 4 in Q4. 2 projects (Mannofield WTW and Easdale Cottages) forecasting acceptance later in the period to align delivery with other planned work in the programme. The following projects that are yet to start on site are:

• Rockcliffe BW - Improvement to Sufficient Status. Temporary treatment is in place to deliver bathing water compliance. Extensive community engagement has taken place - planning consents and marine licensing applications are being worked through and if achieved this will allow a start on site circa March 2024 and a revised acceptance date will be established.
• IR18 - Boardhouse WTW Inlet Screen. The SR15 output was for the installation of a silt curtain. During project development further essential requirements were identified and developed and a much larger project is now in place and expected to start on site circa November 2023 – consideration will be given to signing off the SR15 output once the silt curtain is in place.
• Roberton WTW - pH correction for coagulation. An operational solution was put in place to deliver the SR15 output but was unsuccessful – a new project to install a coagulation control system has been developed and is expected to start on site in February 2024 and reach acceptance by December 2025.

Planned Projects

44 projects have now achieved Gate 100 acceptance against a target for Q1 2023/24 of 53. 10 projects have been impacted by delays. 3 of these projects are forecasting completion in Q2 with a further 2 in Q3. The remaining projects, except for Edgehead ST, Water of Leith UIDs - BATCH 7 - Longstone CSOs, Sanday WTW Quality, are forecasting to be complete during 2023/24. The following projects are yet to start on site:

• Sanday WTW – During project development it became clear that the improvements to Sanday WTW need to be integrated with the project to install the new Gremista pipeline to ensure a holistic solution to the area. The pipeline is complete, and the design of the new clear water tanks is progressing, and it is currently forecast that all works will be concluded by April 2025.
• South Uist WTW New Source. The SR15 output is being delivered by refurbishment works and therefore this project will be closed next quarter as it will no longer be needed.
• IR18 - Upperton (Longriggend) WWTW. The project had to be re-scoped and to ensure the SR15 output will be delivered – expected to start on site by Feb 2024.

More detail on the SR15 Completion projects is given in the presentation slide decks shared and discussed with DWQR and SEPA (Here).