Caugh Hill WTW FAS Storage, Co. Londonderry

Doran Consulting were appointed by NI Water to design and project manage the expansion of FAS chemical storage at Caugh Hill water treatment works (WTW) near Dungiven.  The water treatment works treats and distributes up to 34 million litres of clean drinking water per day to customers in the North West. 

Caugh Hill WTW is located in the Sperrin Mountains and in winter road access is often limited for prolonged periods.  To increase the storage capacity of the key water treatment chemical ferric aluminium sulphate (FAS) and hence avoid running out, the FAS storage capacity was doubled on this project.

Doran Consulting carried out an appraisal to determine the best means to increase storage, to design the new facility and to undertake NEC Project Management, Supervision and CDMC.

The Doran design team delivered civil, hydraulic, structural, geotechnical, process mechanical, electrical, instrumentation, control and automation (MEICA) design.

The team prepared the contract and tender documents, specified the MEICA works and managed the project through to handover, provided site supervision and HAZOP.  The design allowed the new facility to be integrated into the existing plant by modification of the existing feed pipework, control systems and site management systems.