A total of 18,604 million gallons of water was received from China during the year. This includes the supply of an additional 3,000 million gallons following an agreement reached with the People's Council of Kwangtung Province in January 1972.
11.13 In mid-November 1972, as a result of discussion with the Chinese Authorities during the visit to Kwangtung of a delegation of Waterworks senior officers led by the Director of Public Works, agreement was reached to supply the Colony with an additional 3,500 million gallons per annum on a continuing basis, making a total supply of 18,500 million gallons per annum. It was also agreed that, with immediate effect, the supply period should be from 1st October to 10th August each year (previously 1st October to 30th June).
11.14 All the Colony's reservoirs, with the exception of Plover Cove, filled as a result of the heavy rainstorms in summer. Had the retention level of Plover Cove not been increased as a result of progress on the dam raising works, it would have been full at the end of the wet season. The higher retention level increased storage capacity from 36,742 million gallons to 41,689 million gallons.
11.15 The 24-hour supply continued throughout the year. The average daily consumption was 201.6 million gallons with a peak demand of 234.9 million gallons. These figures are respectively 10.1% and 9.3% higher than the corresponding figures for 1971-72.
Headworks Sub-Division
11.16 The maintenance of a balanced draw-off between the reservoirs was difficult due to shut-downs at Tai Po Tau pumping station in connection with the Plover Cove extension works. Draw-off from Plover Cove reservoir was stopped in April 1972 and March 1973. The former shut-down was required for the removal of temporary bulk-heads installed in October 1971 in the tunnel linking the reservoir to Tai Po Tau. During the March shut-down, tunnel gates were installed at the portals at each end of the tunnel and at the junction of the tunnel and the Tai Po Tau culvert. During this stoppage, advantage was taken to desilt the tunnel and branch tunnels. During the shut-downs, a fully treated supply was maintained with draw-offs from old reservoirs as well as water from China.
11.17 Weekend patrol of catchment areas by Waterworks staff continued on a regular basis to minimize abuse by visitors which might lead to pollution and to discourage indiscriminate disposal of litter.
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A total of 18,604 million gallons of water was received from China during the year. This includes the supply of an additional 3,000 million gallons following an agreement reached with the People's Council of Kwangtung Province in January 1972.
11.13 In mid November 1972, as a result of discussion with the Chinese Authorities during the visit, to Kwangtung, of a delegation of Waterworks senior officers led by the Director of Public Works, agreement was reached to supply the Colony with an additional 3,500 million gallons per annum on a continuing basis, making a total supply of 18,500 million gallons per annum. It was also agreed that, with immediate effect, the supply period should be from 1st October to 10th August each year (previously 1st October to 30th June).
11.14 All the Colony's reservoirs with the exception of Plover Cove filled as a result of the heavy rainstorms in summer. Had the reten- tion level of Plover Cove not been increased as a result of progress on the dam raising works it would have been full at the end of the wet season. The higher retention level increased storage capacity from 36,742 million gallons to 41,689 million gallons.
11.15 The 24-hour supply continued throughout the year. The average daily consumption was 201.6 million gallons with a peak demand of 234.9 million gallons. These figures are respectively 10.1% and 9.3% higher than the corresponding figures for 1971-72.
Headworks Sub-Division
11.16 The maintenance of a balanced
balanced draw-off between the reservoirs was difficult due to shut-downs at Tai Po Tau pumping station in connection with the Plover Cove extension works. Draw- off from Plover Cove reservoir was stopped in April 1972 and March 1973. The former shut-down was required for the removal of temporary bulk-heads installed in October 1971 in the tunnel linking the reservoir to Tai Po Tau. During the March shut-down, tunnel gates were installed at the portals at each end of the tunnel and at the junction of the tunnel and the Tau Pass culvert. During this stoppage advantage was taken to desilt the tunnel and branch tunnels. During the shut-downs a fully treated supply was maintained with draw-offs from old reservoirs as well as water from China.
11.17 Weekend patrol of catchment areas by Waterworks staff continued on a regular basis to minimize abuse by visitors which might lead to pollution and to discourage indiscriminate disposal of litter.
145
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