XXXIV. T. W. KEEBLE. 
such as increased use of water for baths, especially plunge 
baths, gardens and manufactories. 
As experience in other cities has shown that the 
consumption per head may still further increase beyond 
the 44 gallons referred to, the Commissioners were of 
Opinion that, in providing for the future requirements of 
Sydney, a consumption per head of 60 gallons should be 
allowed. On this assumption, the estimated requirements 
of Sydney and Suburbs in ten years with a population of 
594,300 would be 36 million gallons per day, and taking loss 
by evaporation into consideration, the actual quantity 
which would have to be provided, would be 40 million 
gallons per. day, or 14,600 million gallons per year. 
Cataract Dam.—The Commissioners therefore considered 
that the present storage should be supplemented by a dam to 
be erected on the Cataract River to impound 7,000 million 
gallons, which, together with the storage of Prospect 
Reservoir, would meet the requirements of the population 
up to 1912, or for at least ten years. This proposal was 
referred tothe Parliamentary Standing Committee on Public 
Works, who, on 12th July, 1902, recommended the construc- 
tion of a dam 160 feet high, to impound 18,200 million gallons 
of water, at a cost not exceeding £217,500. This work was 
commenced at the latter end of 1902, and was completed by 
the end of January 1908, although the water commenced to 
be stored in September 1906. At the present time, May 
1908, the storage amounts to 5,000 million gallons, about 
two months ago it was 2,000 miilions more, or about what 
the Royal Commission of 1902 thought was sufficient for 
the requirements of Sydney. The full capacity of the 
reservoir has been ascertained to be 21,411 million gallons, 
the increase on what was recommended by the Public 
Works Committee resulting from an error in the original 
survey. Asthe catchment area relied upon to fill it is only 
a 
