District west of Garden Road.

District cast of Garden Load.

77

Outline and Particulars on the Possibilities of Installing a Salt water Flushing Scheme for the City of Victoria Hong Kong by Edward Newhouse, Drainage Engineer,

Public Works Department, Hong Kong, 3rd February, 1927.

1. Population. The figures for the estimated distribution of population, based on the 1921 census returns which were obtained from the old health districts, are as follows:-

ESTIMATED POPULATION IN LOW LEVEL Salt Water FLUSH ZONE.

Population 1922 Census.

Total in District.

Add for increase in population 50%

Add for Beclamations

when built on

Total

Less population in Middle Level Zone to be served by Fresh water supply.

Total population to be

supplied.

(North Point

414

3.12

District No. 1

17.386

Causeway Bay Bowring-

15.000 North Point and Tai Hang.

ton and Wongneichong

District No. 1a & 2n

26.553

Wanchai.

District No. 2

27,211

74.262 37,131

Wanchai.

35.000 Praya East.

161.393

6,000

155 393

—,“་་་

[District No. 3.

15,026

Upper Levels.

District No. 4

43.636

(entral.

District No. 5,.

29.471

Central,

District No. 6.....

28,029

Sheungwan and Taiping-

sban.

District No. 7

28,100

Sheungwan and Taiping-

shan.

District No. S.

26,647

Saiyingpun-North of

Government Civil

Hospital.

Distr' ct No D.................... LA 2014

42,620

Saiyingpun.

District No. 10

27 683 241,212 | 120,606

Kennedy Town

8,000

369,818

17,500

352,318

West Point,

507,711 Total pnlarion 10 be served by salt water flush. Say 510,000.

SALT WATER SCHEME FOR LOW-LEVEL ZONE.

2. Site of Destructors and Pumping Station :-The site shown on plan has been chosen chiefly on account of the desirability of having the destructors as far removed as possible from the densely populated parts of the City. It forms part of the scheme of reclamation referred to on page 40 in the report on the commercial development of the Port of Hong Kong by Mr. John Duncan dated the 12th December 1924 and entails the building of a deep sea wall and reclamation. It is desirable to keep the installation within harbour limits east of Sulphur Channel, as the removal of refuse to this point is less likely to be affected by typhoons and adverse weather. The destructors are shown on part of the site nearest the harbour front to allow of rapid and cheap handling of refuse by water transport. It would probably be found economical for all refuse east of Western Market to be water-borne. From experience gained of the working of Destructor plants in several towns in England during the years 1904-1910, I am strongly of the opinion that they can be successfully operated in Hong Kong, but whether they would or would not be a sound business proposition and a Sanitary improvement worth the cost as compared with the present method of refuse disposal at sea, and whether the power generated could be economically used for any large Government buildings and plants other than pumping for a salt water flush system, (and I am inclined to think it

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