308. In connexion with the completion of the scheme boring and survey work were continued. Orders were placed for additional pumps and filtration equipment, and new indents placed for the extra pipes and valves required.
New Reservoir-Lantao Island.
309. Owing to the rapid increase in population and the big industrial development which has taken place in recent years, it has become apparent that even after the Tai Lam Chung Scheme has been completed and put into operation the water resources of the Colony will still be far from sufficient to meet its needs.
310. The possibility of obtaining additional supplies from Lantao Island was accordingly considered and a preliminary scheme prepared. This involved the construction of a dam near Tung Wan to impound water in the Shek Pik Valley which is located in the south-western portion of the Island, the erection of a pumping station and high level reception reservoir at Ngau Ku Wan near Silver Mine Bay, the construction of an aqueduct to link this with Shek Pik Reservoir and the laying of twin submarine pipes to conduct the water from Ngau Ku Wan to a filtration plant to be erected at Mt. Davis on the island of Hong Kong. The scheme envisaged the addition of an average of some 30 million gallons per day to the Colony's resources.
311. Consulting Engineers were subsequently commissioned to carry out detailed investigations and to prepare a report.
Miscellaneous Work
New Territories' Supply.
312. (a) Cheung Chau.
The scheme to supply water to Cheung Chau was completed. It consisted of building a dam 34 feet high to impound approximately 30 million gallons of water, the laying of a 6-inch cement asbestos
66