submarine outfall and the trunk sewer in King's Road were reassessed and revised. Also, to cope with new developments, drainage layout plans were prepared for Chai Wan, Hong Kong, for areas around Lung Cheung Road, Yau Yat Chuen and Tai Hom, Kowloon, and for Sai Kung Town and Kwai Chung Reclamation, New Territories.
Studies and Investigation
6.57 Theoretical and field investigations were carried out to define in general the spare capacity of sewer systems, and then to determine these spare capacities on all existing systems of major sewers in Hong Kong, Kowloon and the major centres of the New Territories. Immediate measures to relieve any imminent over-loading of the existing sewer systems, as a result of further developments in the urban areas, were considered.
6.58 Work on the Hydrological surveys of Victoria and Tolo Harbours was completed and the final report submitted by the Consulting Engineers, Messrs. J.D. & D.M. WATSON.
6.59 Field work on the investigation of night-soil dumping in West Lamma Channel was completed and a report is under preparation.
6.60 Monitoring the quality of harbour waters and bottom sediment as recommended in the Consultants' report was started. A Pollution Study of Deep Water Bay and Repulse Bay in connection with sewage disposal in the areas was also started. In addition, a number of beaches on Hong Kong Island are being monitored for bacteriological quality.
6.61 Construction of Shek Wu Hui Pilot Sewage Treatment Plant commenced in November 1971 under the supervision of the Consulting Engineers, Messrs. J.D. & D.M. WATSON. Orders were placed for some of the machinery items and tenders are being invited for the remaining items.
General
QUARRIES SECTION
Senior Engineer:
N. C. TUCKER, B.Sc., C.Eng., M.I.C.E.
6.62 The Quarries Section functions as a separate unit and is directly responsible to the Principal Government Civil Engineer for
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