ENG-1981 — Page 219

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Land Development

PUBLIC WORKS AND UTILITIES

In Kowloon, filling of a site at Sam Ka Tsuen was completed with about 0.6 hectares being formed for temporary recreational use.

On Hong Kong Island, reclamation by public dumping continued at Quarry Bay, where about 4.5 hectares were formed for future roads and industrial use. Reclamation at Western District also started with about two hectares being formed for future cargo handling area, roads and industrial use. At East Tamar Basin, 1.5 hectares of land were reclaimed as part of the plan for the reprovisioning of Lei Yue Mun Fort and Sham Shui Po Camp. At Aberdeen, 0.5 hectares of land were formed for a future road system.

In the New Territories, reclamation for the third and final stage of Tai Po Industrial Estate started and a further 0.5 hectares of land were formed for industrial use.

The initial engineering feasibility study for urban development in the northern part of Lantau Island was completed. The study area extended from the north-eastern tip at Kap Shui Mun to the south-western district of Tung Chung. Civil engineering design studies on the possible replacement airport started at Chek Lap Kok Island.

Quarrying

The seven contract quarries and the two managed by the government produced some 15.1 million tonnes of aggregates during 1981. The contracts for the quarries at Lam Tei and Shek O were extended a further 10 years to maximise extraction from these two sites. A second rock crushing site contract was also let.

The importation of aggregates into Hong Kong from a new private quarry at Woo Shek Koo in China started in mid-1981.

With the Government Sand Monopoly being discontinued in June, marine and river sand brought in from China is now being sold directly by the importers while manufactured sand is sold by the quarry contractors. However, the Sand Ordinance, which provides for the protection of Hong Kong's reserves as well as the control of imports, remains in force.

Port Works

On Hong Kong Island, construction of 185 metres of seawall with pumphouses was complet- ed at Tamar East Basin. At Quarry Bay, work on the construction of 675 metres of seawall continued and a new contract was let for the construction of another 410 metres. Construc- tion on 900 metres of seawall superstructure with pumphouses in Western District was in progress, and work on the construction of 510 metres of seawall at Aberdeen continued.

In Kowloon, construction of 400 metres of seawall superstructure for Cheung Sha Wan Reclamation was in progress.

In the New Territories, construction of the breakwater superstructure for the new Cheung Chau typhoon shelter was in an advanced stage and construction work com- menced on the seawall and pier for the cattle quarantine depot at Tsing Yi. New contracts were let for the construction of piers at Sai Kung town, Joss House Bay and Tso Wo Hang.

Drainage and Anti-pollution Projects

Flood protection to urban and rural areas is afforded by stormwater drainage culverts and nullahs. Sewage from developed areas is, in general, collected by separate sewage systems and subjected to various modes of treatment depending on the quality of effluent acceptable in the waters where it is discharged. Sewage from rural areas where sewage systems are not provided is often disposed of through separate sewage treatment facilities such as septic tanks, Imhoff tanks and package sewage treatment plants.