11.14
Rainfall during the year was much higher than normal, early rain in May filling practically all reservoirs to capacity. Heavy rain continued in the wet season and this enabled the reservoirs to be maintained at 95% capacity throughout the summer. Record high storages were achieved for each of the months from May onwards, with the exception of September. Late rain in October again filled all the reservoirs and a 24-hour daily supply was maintained throughout the year.
11.15 The commissioning tests of the Lok On Pai desalination plant continued, the product water being delivered into the supply system via Tai Lam Chung Reservoir. The testing schedule produced a total of nearly 11 million cubic metres of water.
11.16
Details of rainfall, storage and consumption are shown in Appendix CC. Rainfall was 33.9% above average. Yield and daily average consumption increased by 2.1% and 8.0% respectively but the peak daily consumption decreased by 0.5% when compared with the previous year.
Headworks Sub-Division
11.17
During the period of shutdown of Chinese water supply, (10th Sept. to 1st Oct. 1975) which was shortened to 20 days due to an increase of supply from 84,101 cubic metres to 95,466 cubic metres, modifications to Muk Wu Balance Tank were carried out to improve flow characteristics to the suction intake at Muk Wu Pumping Station.
11.18
Weekend patrolling of catchment areas by Waterworks staff to prevent pollution and vandalism by visitors was discontinued throughout the year in a move to reduce expenditure on the limited funds available for overtime payments.
11.19
Routine maintenance of access roads, catchwaters, control gates, treatment works, pumping stations, staff quarters and depots, and the maintenance and cleaning of service reservoirs continued.
11.20 Heavy rainstorm in April, May, August and typhoon in October caused damage to a number of Waterworks installations, the estimated cost of repairs being $950,000.
Operation Sub-Division
11.21 The Government computer was used in connection with reservoir system operations and for the determination of consumption statistics and other supply criteria. Owing to staff shortages, no progress was made in the development of the computer programme in connection with the study for possible future location of desalting plants. Analysis by computer of the 1972 and 1973 trade consumption statistics was completed. Similar analysis for the 1974 and part of the 1975 statistics was in hand. Work
137
11.14
Rainfall during the year was much higher than normal, early rain in May filling practically all reservoirs to capacity. Heavy rain continued in the wet season and this enabled the reservoirs to be
maintained at 95% capacity throughout the summer. Record high storages were achieved for each of the months from May onwards, with the exception of September. Late rain in October again filled all the reservoirs and a 24-hour daily supply was maintained throughout the year.
11.15 The commissioning tests of the Lok On Pai desalination plant continued, the product water being delivered into the supply system via Tai Lam Chung Reservoir. The testing schedule produced a total of nearly 11 million cubic metres of water.
11.16
Details of rainfall, storage and consumption are shown in Appendix CC. Rainfall was 33.9% above average. Yield and daily average consumption increased by 2.1% and 8.0% respectively but the peak daily consumption decreased by 0.5% when compared with the previous year.
Headworks Sub-Division
11.17
During the period of shutdown of Chinese water supply, (10th Sept. 1st Oct. 1975) which was shortened to 20 days due to an increase of supply from 84,101 cubic metres to 95,466 cubic metres, modifications to Muk Wu Balance Tank were carried out to improve flow characteristics to the suction intake at Muk Wu Pumping Station.
11.18
Weekend patrolling of catchment areas by Waterworks staff to prevent pollution and vandalism by visitors was discontinued throughout the year in a move to reduce expenditure on the limited funds available for overtime payments.
11.19
Routine maintenance of access roads, catchwaters, control gates, treatment works, pumping stations, staff quarters and depots, and the maintenance and cleaning of service reservoirs continued.
11.20 Heavy rainstorm in April, May, August and typhoon in October caused damage to a number of Waterworks installations, the estimated cost of repairs being $950,000.
Operation Sub-Division
11.21 The Government computer was used in connection with reservoir system operations and for the determination of consumption statistics and other supply criteria. Owing to staff shortages, no progress was made in the development of the computer programme in connection with the study for possible future location of desalting plants. Analysis by computer of the 1972 and 1973 trade consumption statistics was completed. Simlar analysis for the 1974 and part of the 1975 statistics was in hand. Work
137
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