to accommodate the Main Plover Cove dam was completed, and the placing and dumping of decomposed granite obtained from White Head borrow area was started. Top soil was stripped from much of the Ma Liu Shui borrow area and at Turret Hill Quarry two faces were prepared.
7.81. Extraction from the Plover Cove Reservoir will be by pumps at Tai Mei Tuk which will deliver water against the fall of the Tai Po Tau-Tai Mei Tuk tunnel to the supply basin behind the Tai Po Tau Fabridam. There will be six Vickers Armstrong pumps at Tai Po Tau having a capacity of 75 million gallons per day. Four of these pumps, which have already been commissioned, will draw from the Tai Po Tau intake and force the water against the fall of the Sha Tin-Tai Po Tau tunnel to the supply basin at the foot of a new dam constructed across the Shing Mun River, below Jubilee Dam. From this supply basin the water flows by gravity through a tunnel under Tai Po Road to the new Sha Tin Treatment Works. The tunnel to the Treatment Works as well as the Lower Shing Mun Dam and supply basin were substantially completed during the year. The Lower Shing Mun Reservoir provides an additional storage of about 900 million gallons for any overflow from Shing Mun Reservoir which would otherwise run to waste as well as providing a balance for the flood flow from the Sha Tin-Tai Po Tau tunnel when this flows against its fall under the pressure head of the shafts some 200 ft. deep collecting the stream course yields.
7.82. A further facet of this scheme was the substantial completion of a 36" dia. main by which pumps installed below the Lower Shing Mun dam will be able to pump up to 20 million gallons per day of the Plover Cove yield to the Shing Mun Reservoir supply conduit. Thus the Plover Cove Scheme will be integrated with the Shing Mun resources.
7.83. The Sha Tin Treatment Works, giving a capacity of 50 million gallons per day, were substantially completed with the exception of the mechanical installation and cabling for automatic control of the beds and internal decoration.
7.84. The treated water is to be pumped by six units with a combined capacity of 75 million gallons per day. Of these four were commissioned. Two 48" and one 54" dia. mains were laid through the Lion Rock tunnel by which these pumps supply the two Lion Rock service reservoirs of 40 million gallons combined capacity, the 30 million gallon Shek Kip Mei service reservoir and the 15 million gallons service reservoir at Tsz Wan Shan. Plover Cove water will also be supplied to Hong Kong Island by a 54" dia. trunk main from Lion Rock Service Reservoir,
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to accommodate the Main Plover Cove dam was completed, and the placing and dumping of decomposed granite obtained from White Head borrow area was started. Top soil was stripped from much of the Ma Liu Shui borrow area and at Turret Hill Quarry two faces were prepared.
7.81. Extraction from the Plover Cove Reservoir will be by pumps at Tai Mei Tuk which will deliver water against the fall of the Tai Po Tau-Tai Mei Tuk tunnel to the supply basin behind the Tai Po Tau Fabridam. There will be six Vickers Armstrong pumps at Tai Po Tau having a capacity of 75 million gallons per day. Four of these pumps, which have already been commissioned, will draw from the Tai Po Tau intake and force the water against the fall of the Sha Tin-Tai Po Tau tunnel to the supply basin at the foot of a new dam constructed across the Shing Mun River, below Jubilee Dam. From this supply basin the water flows by gravity through a tunnel under Tai Po Road to the new Sha Tin Treatment Works. The tunnel to the Treatment Works as well as the Lower Shing Mun Dam and supply basin were substantially completed during the year. The Lower Shing Mun Reservoir provides an additional storage of about 900 million gallons for any overflow from Shing Mun Reservoir which would otherwise run to waste as well as providing a balance for the flood flow from the Sha Tin-Tai Po Tau tunnel when this flows against its fall under the pressure head of the shafts some 200 ft. deep collecting the stream course yields.
7.82. A further facet of this scheme was the substantial completion of a 36" dia. main by which pumps installed below the Lower Shing Mun dam will be able to pump up to 20 million gallons per day of the Plover Cove yield to the Shing Mun Reservoir supply conduit. Thus the Plover Cove Scheme will be integrated with the Shing Mun resources.
7.83. The Sha Tin Treatment Works, giving a capacity of 50 million gallons per day, were substantially completed with the exception of the mechanical installation and cabling for automatic control of the beds and internal decoration.
7.84. The treated water is to be pumped by six units with a combined capacity of 75 million gallons per day. Of these four were commissioned. Two 48" and one 54" dia. mains were laid through the Lion Rock tunnel by which these pumps supply the two Lion Rock service reservoirs of 40 million gallons combined capacity, the 30 million gallon Shek Kip Mei service reservoir and the 15 million gallons service reservoir at Tsz Wan Shan. Plover Cove water will also be supplied to Hong Kong Island by a 54" dia. trunk main from Lion Rock Service Reservoir,
87
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