The work comprises the design, construction, operation and maintenance of the transfer pumping stations, gravity sewers and pumping mains, sewage treatment works and treated sewage effluent return main to the new treatment plant located some 10km away. The principal elements of the works to be designed & construct are l A new raw sewage pumping station l Modification of an existing raw sewage pumping station l 10km of gravity sewers and pumping mains l Membrance Biological Reactor (MBR) sewage treatment works l Treated sewage effluent (TSE) pumping station l 10km of TSE pumping main.