P.W.R. Hongkong.
The total quantity of water supplied during the year amounted to 2,437.43 million gallons filtered and 45.36 million gallons unfiltered, making a grand total 2,482.79 million gallons or 218.12 million gallons more than during 1918.
The average consumption of filtered water per head per day for all purposes throughout the year amounted to about 24.2 gallons. In arriving at this figure, the population has been estimated at 275,000.
Full details of consumption, etc., will be found in Annexes C & D.
The analyses made by the Government Analyst show that the water was of good quality throughout the year, and the results obtained by bacteriological examinations were also satisfactory.
The quantity of water pumped to the High Level District of the City amounted to 138.74 million gallons, equal to an average daily consumption of about 380,000 gallons, whilst 42.02 million gallons were pumped to the Hill District, giving an average daily consumption of 115,000 gallons. As compared with 1918, there was an increase of 29.90 million gallons pumped to the High Level Districts and a decrease of 14.7 million gallons pumped to the Hill District.
The grand total pumped during the year to the High Level and Hill Districts amounted to 180.76 million gallons as compared with 152.33 million gallons pumped during 1918, an increase of 28.43 million gallons.
Tabulated statements containing particulars of the quantities of water pumped to the High Levels of the City and to the Hill District respectively will be found in Annexe E.
All engines, motors, and station buildings have been kept in good repair throughout the year.
The work of overhauling the valves on the principal mains in the City was continued during the year, the number thoroughly repaired amounting to 109.
Tests were carried out early in the year on the Group Hydrants fixed during 1918 to the Fire Brigade's requirements. The tests proved satisfactory, and a type was fixed as a standard for the future. During the year, twenty more groups were fixed at points in the City specified by the Superintendent of the Fire Brigade.
The number of meters in use at the end of the year amounted to 1,838 in the City and 181 in the Hill District, making a total of 2,019 as compared with 1,777 and 179, or a total of 1,956 at the end of 1918. These figures do not include 14 meters in use at Pokfulam.
The quantity of water supplied by meter was as follows:
Filtered: Trade 295.62 million gallons Domestic (City) 193.25 (Hill District) 42.02 Unfiltered 45.36 Total 576.25