# Q3
WATER WORKS.
11. On the maintenance side the following works were carried out:
12. In Hong Kong the following lengths of new mains were laid to improve distribution: - 120 feet of 15", 287 feet of 10", 1,105 feet of 6", 144 feet of 5", 2,271 feet of 4", 2,211 feet of 3", 904 feet of 2". 3,624 feet of subsidiary mains were laid in back lanes. The Stanley Water Supply Scheme was completed. Construction of a 50,000 gallon covered service reservoir for Repulse Bay commenced.
13. In Kowloon and New Kowloon the following lengths of mains were laid: - 1,367 feet of 12", 1,724 feet of 6" and 3,607 feet of subsidiary mains in back lanes.
14. In the New Territories mains were laid as follows: - 5,907 feet of 4" at Tsun Wan, 780 feet of 3" at Taipo and 364 feet of subsidiary mains in back lanes.
15. The Jubilee Reservoir at Shing Mun was taken over from the Consulting Engineers on 1st May. Certain defects in Pineapple Pass Dam were discovered in September and were referred to the Consulting Engineers whose final decision had not been received at the close of the year.
16. The disastrous typhoon of 2nd September caused only minor damage to Water Works.
17. During the year experimental waste detection work was carried out and reports were submitted to Government with a view to the establishment of a permanent waste detection branch.
18. On the construction side the following works were carried out:
19. The laying of the first section of the second 24" diameter trunk main from the Shing Mun Valley between Shek Lai Pui Service Reservoir and Waterloo Road was completed and brought into use in July.
20. The total length of main laid was 16,876 feet of which 16,286 feet consisted of new pipes.
21. The third section of the rapid gravity filters for the Shing Mun Valley Scheme was completed and brought into use in July. With the completion of this section, which deals with five million gallons per day, the total filtration capacity of the plant is now fifteen million gallons per day. Provision has been made for the addition of a further five million gallons per day at a future date.