needs of the area. A concrete intake dam was constructed, also slow sand roughing filters, a service reservoir and attendant's quarters on a nearby site. The laying of 25,000 feet of 6" diameter asbestos cement pipe imported from Japan and of 1,200 feet of 4″ cast iron victaulic joint pipes, linked the new intake with the existing pipe system. The work was completed at a total cost of $223,264.87. Although Military participation in sharing the expenses of the scheme were considered it was eventually decided that the total cost of the scheme should be borne by the Government and paid from public funds. The Hok Tau supply was brought into operation early in the year and since then no shortage of water has been experienced in the Fanling area.
223. Tai Lam Chung. Investigations and surveys continued for the proposed Tai Lam Chung scheme. Boring work was carried out to prove foundations for Lai Chi Kok service reservoir and the sites for the filters and pump house. Stream gaugings continued and a number of flood hydrographs obtained. Surveys were completed for the line of the aqueduct, all the various reservoir, pumping station and filter sites. Survey work at Tai Lam Chung continued.
MISCELLANEOUS.
224. Deep Bay Airport. Boring work with the diamond coring rig was carried out at Ping Shan for the Air Ministry. Altogether 26 bores were drilled, involving 1,063 feet of drilling of which 131 feet were in rock.
225. Alexandra Building. Boring work was also carried out for Messrs. Spence Robinson & Partners in connexion with the foundation investigations for a large new block of offices in the centre of the city. Three bores were completed involving 251 feet of drilling of which about 51 feet were in rock.
226. Central Reclamation. Boring work was also carried out off Murray Pier in connexion with the proposed central reclamation scheme. One bore was sunk to a level of 153 feet below the pier deck and a second to a depth of 48 feet.
227. Static Water Tanks. At the request of the Chief Officer, Fire Brigade, static water tanks have been constructed both on the Island and the mainland for the storage of water to be used for fire fighting in the event of an emergency. 17 such tanks have been completed in the Wanchai district of Hong Kong and 54 in the mainland urban area. Orders were placed during the year for 3 sets of diesel-driven pumps and the necessary pipes and fittings for a salt water fire fighting installation in the Hong Kong mid-levels area.
228. Revenue and Expenditure. To collect revenue, chargeable water accounts were sent out quarterly and supplementary and miscellaneous
38
Page
needs of the area. A concrete intake dam was constructed, also slow sand roughing filters, a service reservoir and attendant's quarters on a nearby site. The laying of 25,000 feet of 6" diameter asbestos cement pipe imported from Japan and of 1,200 feet of 4′′ cast iron victaulic joint pipes, linked the new intake with the existing pipe system. The work was completed at a total cost of $223,264.87. Although Military parti- cipation in sharing the expenses of the scheme were considered it was eventually decided that the total cost of the scheme should be borne by the Government and paid from public funds. The Hok Tau supply was brought into operation early in the year and since then no shortage of water has been experienced in the Fanling area.
223. Tai Lam Chung. Investigations and surveys continued for the proposed Tai Lam Chung scheme. Boring work was carried out to prove foundations for Lai Chi Kok service reservoir and the sites for the filters and pump house. Stream gaugings continued and a number of flood hydrographs obtained. Serveys were completed for the line of the aqueduct, all the various reservoir, pumping station and filter sites. Survey work at Tai Lam Chung continued.
MISCELLANEOUS.
224. Deep Bay Airport. Boring work with the diamond coring rig was carried out at Ping Shan for the Air Ministry. Altogether 26 bores were drilled, involving 1,063 feet of drilling of which 131 feet were in rock.
225. Alexandra Building. Boring work was also carried out for Messrs. Spence Robinson & Partners in connexion with the foundation investigations for a large new block of offices in the centre of the city. Three bores were completed involving 251 feet of drilling of which about 51 feet were in rock.
226. Central Reclamation. Boring work was also carried out off Murray Pier in connexion with the proposed central reclamation scheme. One bore was sunk to a level of 153 feet below the pier deck and a second to a depth of 48 feet.
227. Static Water Tanks. At the request of the Chief Officer, Fire Brigade, static water tanks have been constructed both on the Island and the mainland for the storage of water to be used for fire fighting in the event of an emergency. 17 such tanks have been completed in the Wanchai district of Hong Kong and 54 in the mainland urban area. Orders were placed during the year for 3 sets of diesel-driven pumps and the necessary pipes and fittings for a salt water fire fighting installation in the Hong Kong mid-levels area.
228. Revenue and Expenditure. To collect revenue, chargeable water accounts were sent out quarterly and supplementary and miscellaneous
38
Page
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