were accordingly increased to 4 per day. On October 9, however, lack of rain made it necessary to reduce them once more to 3 where they remained until the end of the year.
297. The unprecedented curtailment of supply and the introduction of zoning brought many problems. A large programme of renewals and improvements including temporary alterations to the distribution system was carried out to obtain the maximum benefit from the limited amount of water available. The wash water from the Rapid Gravity filters at Shek Li Pui and Eastern which normally runs to waste was recovered, refiltered and put into distribution. In addition, temporary pumps were installed in stream courses at Deep Water Bay and Lai Chi Kok to raise the water from the streams into the Aberdeen East Catchwater and the Kowloon Filter Beds respectively.
Supply
298. Rainfall. The rainfall was the second lowest on record, only 50.99 inches being measured by the Royal Observatory as against 89.33 inches during 1953/54 and an average of 84.74 inches. The average recorded by raingauges in the Waterworks catchment areas was 59.31 inches.
299. Storage. The following table gives details of storage in the impounding reservoirs:—
Date Storage in Million Gallons Remarks 1st April 1954 2,382 Slightly above normal. 31st May 1,257 Minimum for the year. 23rd September 4,893 Maximum for the year. 81.9% of total capacity. 11th & 12th Sept. (2 days) Aberdeen Lower and Pokfulam Reservoirs overflowing to waste. 13th to 15th Sept. (3 days) Aberdeen Lower Reservoir overflowing to waste. 1st April 1955 1,987 Below normal.57
were accordingly increased to 4 per day. On October 9, however, lack of rain made it necessary to reduce them once more to 3 where they remained until the end of the year.
297. The unprecedented curtailment of supply and the intro- duction of zoning brought many problems. A large programme of renewals and improvements including temporary alterations to the distribution system was carried out to obtain the maximum benefit from the limited amount of water available. The wash water from the Rapid Gravity filters at Shek Li Pui and Eastern which normally runs to waste was recovered, refiltered and put into distribution. In addition, temporary pumps were installed in stream courses at Deep Water Bay and Lai Chi Kok to raise the water from the streams into the Aberdeen East Catchwater and the Kowloon Filter Beds respectively.
Supply
298. Rainfall. The rainfall was the second lowest on record, only 50.99 inches being measured by the Royal Observatory as against 89.33 inches during 1953/54 and an average of 84.74 inches. The average recorded by raingauges in the Waterworks catchment areas was 59.31 inches.
299. Storage. The following table gives details of storage in the impounding reservoirs:—
Date
Storage in Million
Remarks
Gallons
1st April 1954
2,382
Slightly above normal.
31st May......
1,257
Minimum for the year.
23rd September...
4,893
Maximum for the year.
81.9% of
total capacity.
11th & 12th Sept. (2 days)
13th to 15th Sept. (3 days)
1st April 1955
1,987
Aberdeen Lower and Pokfulam Re-
servoirs overflowing to waste.
Aberdeen Lower Reservoir overflowing
to waste.
Below normal.
57
ce 73
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