Nuclear Restoration Services · Awarded contract

Awarded

Alternative Active Effluent Discharge Line Installation Works and Final Design

Awarded 18 Oct 2026

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Awarded18 Oct 2026

Value£9,458,845.02

SupplierCostain Limited

AgencyNuclear Restoration Services

RegionScotland

CategoryWater & Sanitation

Expires in 1y 7mo1y 8mo term, 4% elapsed

Awarded 18 Oct 2026Expires 8 June 2028

About

The Cooling water system at NRS Hunterston B site is no longer required for any cooling function.

Therefore, the intention is to remove the Cooling Water pumps and there is a requirement to provide Alternative Active Effluent Discharge Lines (AAEDL) to the sea discharge point.

This contract is for final concept design services and the marine installation of new pipe, valve and other minor works for the AAEDL seaward side, at the Hunterston B Nuclear site.

This is to include: - End of line isolation and backflow protection - Culvert fixings - Pipe fitting and valve repair/replacement/installation - Pressure testing and maintenance strategy - Any required pre-works The Contract has been awarded via Mini-Competition under the NRS Decommissioning and Asbestos Removal (DAR) Framework Lot 1 - conventional deplanting, asbestos removal and demolition.

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