Q 70
House Service.
67. The following metered services were connected or disconnected during the year:
Type of Supply. Connected. Disconnected. Domestic 867 1,108 Trade 11 91 Shipping 176 Building 18 68 Government 57 61 1 168. 130 repairs were carried out to inside services for consumers at their cost.
69. 821 applications from licenced plumbers for permission to carry out work on inside services were received during the year.
70. 772 inspections of new services were carried out in addition to the routine inspections above.
Fourteen private fire services were connected to the mains and three were
71. disconnected.
72. Under "Maintenance of Government Buildings" 2,368 items of work were carried out in connection with the maintenance of inside services viz—2,311 in Kowloon, 24 in Taipo, 18 in Fanling, 13 in Un Long and 2 in Tsun Wan. The costs were charged to that vote.
General.
73. All Waterworks structures, plant, buildings, pipelines, valves, etc. were maintained in good condition during the year.
74. Further to the work carried out at Pineapple Pass Dam of the Jubilee Reservoir described in last year's Departmental Report, and on instructions received from the Consulting Engineers, an exploratory pit was sunk at the South end of the core wall on the downstream face. The core wall was exposed to 611.00 A.P.D. where rock was struck. A large cavity at approximately 624.00 A.P.D. was grouted up under pressure while the water level in the reservoir was still well below this point. As the reservoir level rose water began to percolate into the pit and stood at 618.00 A.P.D. when the reservoir reached the overflow level of 625.00 A.P.D. The percolation was quite small and it was always possible to empty the pit in a day by baling. The leakage through the dam when the reservoir was at overflow level was approximately 6,700 gallons per hour as compared with approximately 7,400 gallons per hour during its last overflow period in 1937.
75. Leakage had been observed early in 1938 at the low gap of Jubilee reservoir which ceased when the level of the water dropped to 594.42 A.P.D. During 1938 the reservoir level did not rise above 594.50 again but in 1939 it
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Page 706
- Q 70
House Service.
67. The following metered services were connected or disconnected during the year:
Domestic
Type of Supply.
Trade
Shipping
Building
Government
Connected.
Disconnected.
867
11
176
18
57
61
1
1,108
91
68.
130 repairs were carried out to inside services for consumers at their cost.
69. 821 applications from licenced plumbers for permission to carry out work on inside services were received during the year.
70. 772 inspections of new services were carried out in addition to the routine inspections above.
Fourteen private fire services were connected to the mains and three were
71. disconnected.
72. Under "Maintenance of Government Buildings" 2,368 items of work were carried out in connection with the maintenance of inside services viz-2,311 in Kowloon, 24 in Taipo, 18 in Fanling, 13 in Un Long and 2 in Tsun Wan. The costs were charged to that vote.
General.
73. All Waterworks structures, plant, buildings, pipelines, valves, etc. were maintained in good condition during the year.
74. Further to the work carried out at Pineapple Pass Dam of the Jubilee Reservoir described in last year's Departmental Report, and on instructions received from the Consulting Engineers, an exploratory pit was sunk at the South end of the core wall on the downstream face. The core wall was exposed to 611.00 A.P.D. where rock was struck. A large cavity at approximately 624.00 A.P.D. was grouted up under pressure while the water level in the reservoir was still well below this point. As the reservoir level rose water began to percolate into the pit and stood at 618.00 A.P.D. when the reservoir reached the overflow level of 625.00 A.P.D. The percolation was quite small and it was always possible to empty the pit in a day by baling. The leakage through the dam when the reservoir was at overflow level was approximately 6,700 gallons per hour as compared with approximately 7,400 gallons per hour during its last overflow period in 1937.
75. Leakage had been observed early in 1938 at the low gap of Jubilee reservoir which ceased when the level of the water dropped to 594.42 A.P.D. During 1938 the reservoir level did not rise above 594.50 again but in 1939 it
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