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STATEMENT BY THE DIRECTOR OF PUBLIC WORKS.
31
ANALYSIS OF "A MOST SERIOUS POSITION."
The Colonial Secretary (the Hon. Mr. W. T. Southorn) who presided, said that the particular reason for calling the meeting was to put forward the views of the Government on the question of whether water could be supplied to the mains from Tytam Tuk. He would ask the Director of Public Works to read the memorandum which he had prepared on the whole subject.
The Director of Public Works (the Hon. Mr. H. T. Creasy, C.B.E., said:-
The position of the island supplies this morning is as follows: Total in storage 157.79 million gallons.
Recent daily rate of depletion, 2.60 million gallons. Minimum number of days storage available (without rain and on four hours a day supply), 62 days.
A reduction to a single period of three hours per days will shortly have to be introduced, however, if no rain falls. This would reduce the daily rate of depletion, it is hoped, to approxim- ately 2.10 million gallons a day.
By introducing one period of three hours a day of supply the City mains would require to be filled only once per day instead of twice, as at present.
Consumption Particulars.
The following statement, based upon the figures for previous years, showing the daily consumption in the City for July under various conditions of supply, has been prepared:-
Supply.
1.-Constant supply in all rider
main districts
Consumption million gallons
per day
Remarks.
12.00
2.-Two hours supply daily in
rider main districts 3.-Constant supply
*8.00
Principal mains open 24 hours daily. No tanks.
daily by
7.00
4.10
3.50
Auxiliary supplies
3.00
+2.90
from tanks not included.
street fountains only 4.-12 hours' supply daily 5.7 hours supply daily 6.-5 hours' supply daily 7.-4 hours' supply daily
By closing the principal mains from 6 p.m. to 6 a.m. daily these figures could be reduced to 6.5 million gallons per day. +-Owing to additional fountains having been opened practically no saving has resulted by the reduction of 13 hours per day supply.
1.-A constant supply to all rider main districts can only be given when the reservoirs are full or nearly so. It involves a consumption of 12 million gallons a day and is generally given only in the summer months of favourable years. Since January 1, 1927, the total period of full supply has been 283 days.
First Restriction.
2. A two hours daily supply in rider main districts is the first restriction following a constant supply. It involves a con- sumption of eight million gallons a day, and since January 1, 1927, has been in operation either in part or whole of the City for 390 days.
Second Restriction.
3.-A constant supply with street fountains only in rider main districts giving a consumption of seven million gallons a day. This has been in operation 178 days since January 1, 1927. The consumption can be regulated by the number of fountains opened. Third Restriction.
4-A 12 hours supply with street fountains only in rider main districts. This restriction commenced in May 1, 1929.
5, 6, 7. Further restrictions of 7 hours, 5 hours and 4 hours have latterly had to be introduced with street fountains only in rider main districts involving consumption of 31, 3, and 2.9 million gallons a day respectively. Such restrictions have not been neces- sary during the last 25 years.
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