Seagahan WTW
13th November 2025
We’re proud to share our recently completed project for Northern Ireland Water on the Treatability Improvements Project at Seagahan WTW in collaboration with our JV partner Murphy.
Located six miles south of Armagh, the works treats ~10 million litres per day (with design capacity up to 16.3 MLD).
Key highlights:
– Replacement of the soda-ash system for improved pH control and chemical dosing accuracy.
– Installation of automatic coagulation dosing, new orthophosphoric system, and upgraded rapid gravity filter with glass media.
– Collaboration via Early Contractor Involvement (ECI) ensured space constraints were managed and operational continuity maintained.
Thanks to the project team for delivering on time and budget, and for helping boost the resilience of water supply infrastructure for local communities.