APPENDIX CC-Contd.
(5) Pumping Stations (quantity pumped in million gallons)
1970-71 1971-72 Raw water 82,439 108,292 Filtered water 47,639 51,720 Salt water 13,660 15,666 ... ... ...(6) Meters
1970-71 1971-72 Additional meters installed ... 48,965 59,244 Total meters in service at end of year 424,803 484,047(7) Routine Mechanical Works
1970-71 1971-72 Items of work carried out in Workshops 3,678(2,198*) 1,960 Major engine overhauls 32,718 29,489 Meters overhauled 40 36 Top engine overhauls ► 36 Major pump overhauls 24 24 Other repairs or works Contracts let 31 31 128 145 104(69*) 56* Combined with Electrical Works in 1970-71 report.
(8) Routine Electrical Works
1970-71 1971-72 1. Items of work carried out in Workshop 1,480* 43,773† 1,492 2. Electrical plant inspection and test 55,484 3. Electrical plant major overhauls 18 14 4. Electrical plant faults repaired ... 4391 4,514† 727 294 5. Instrumentation inspection and test 8,382 582 6. Instrumentation faults repaired ... ...* Combined with Mechanical Works in 1970–71 report. †,‡ Combined under Electrical in 1970-71 report.
(9) Trunk and Distribution Mains
Fresh Water Salt Water Steel 21 ins, dia, and over (ft.) (ft.) 3,914 1,200 Steel 4 ins. to 18 ins. dia. ... 4,439 66 Cast Iron 4 ins. to 18 ins. dia. 4,226 129 Asbestos Cement 3 ins. to 24 ins. dia. 116,129 55,036 Galvanized Iron 3 ins. to 6 ins. dia. • 143,311 91,276 Galvanized Iron 2 ins. to 2 ins. dia. 1,752 27,787 P.V.C. 3 ins. to 6 ins. dia. 278Page 224
Scale In Miles
0
2
Crown Lands & Survey Office. Hong Kong. 1971