Kowloon.
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I would therefore propose the complete development of this and adjacent areas as completely set forth in Sessional Paper No. 10 of 1927.
Regarding the Little Hong Kong Site, I understand Government is averse to alienating this valuable flat piece of land from the public, but this site would appear to offer the greatest and almost the last possibility of large increase on the Island. The Dam Sites have never been investigated and it is not known therefore if they offer economic possibilities. As however, even if feasible, the dams owing to their length would be costly, and heavy contingent works in the shape of pumps and possibly a tunnel to the North side of the Island would be necessary, I would not suggest the development of this site, at least till all cheaper water either on the Island or Mainland has been obtained.
As Tytam Tuk Reservoir is at present short of Catchment Area, I would propose the construction of the Mt. Pottinger, Mt. Parker, Tytam Tuk (East) and Dragon's Back (East) Catchwaters, all of which would drain into that reser-
voir.
I would not propose the construction of either the Dragon's Back (West) Catchwater owing to its length of carry and uneconomical area length ratio, or D'Aguilar Peak Catchwater owing to the unfavourable nature of the ground, cost and length of carry.
The preceding proposals would augment the supply on the Island to the ex- tent of 3.62 million gallons per day, which would still leave à deficiency of 0.63 million gallons per day in 1932.
Of the possible extensions on the mainland, Kun Tong and Rennie's Farm sites are too small for our present needs while Chin Lan Chu would involve the removal of a very large village, which is undesirable except as a last resort.
I would propose the construction of the Kowloon Byewash Dam, which is favourably situated with regard to existing works, requires no contingent works in the way of filters or pumping and could be economically developed in con- junction with the Shing Mun Works.
I would also propose the completion of the 1st. Section of the Shing Mun Valley Scheme as set forth in my report dated 8. 4. 24, as this would appear to produce the cheapest water available.
The preceding proposals both in Hong Kong and Kowloon when completed. would bring the total supply of the Colony up to 16.53 million gallons per day or approx. equal (16.5) to the estimated requirements in 1932. With the addition of the filters proposed under the Aberdeen Scheme the filtering capacity of the Colony would also approx. equal requirements.
On completion of these Works I consider the 2nd. Section of the Shing Mun Valley Scheme should be commenced.
To cope with the increased consumption a consistent annual programme of mainlaying and distribution improvement is necessary both on the Island and the Mainland. Balance Tanks at North Point and Kowloon City are becoming urgent necessities: