Mains Sub-Division
11.08 Extensions to both fresh and salt water distribution mains were carried out to supply new development areas, undersized or defective mains replaced, and alterations made to facilitate road construction work. A total of 66 miles of mains were laid as extensions to the fresh and salt water distribution systems. Details of mains laid are given in Appendix CC under item (9).
11.09 Systematic waste detection continued throughout the year. Quarterly checks were carried out in 294 fresh water areas and annual checks in 65 salt water areas. A number of major leaks were discovered and repaired, resulting in an estimated daily saving of more than four million gallons of water.
House Service Sub-Division
11.10 The number of additional meters installed was 70,042. This was an increase of 18% on the number installed during 1971-72 and brought the total number of meters in service to 554,089.
SUPPLY DIVISION
Chief Engineer:
H. J. WOODTHORPE, C.P.M., C.Eng., M.I.C.E., M.I.Mun.E., M.I.W.E.
NG Lin-hing, B.Sc. (Calif.), D.I.C., C.Eng., M.I.C.E., M.I.Struct.E., M.I.W.E. (Acting)
General
11.11 The Division comprises a Headworks Sub-Division, responsible for the maintenance and operation of storage reservoirs, intakes, filter stations, trunk mains and service reservoirs, and an Operation Sub-Division, responsible for monitoring pumping stations, treatment works, service reservoirs and other facilities, for the collection and processing of hydrological data for design and record purposes, and for the development of rules for the operation of the multi-reservoir system.
11.12 At the end of the year 29,508 million gallons of water were held in storage, including 21,020 million gallons in the Plover Cove Reservoir. Storage at the end of the previous year was 25,861 million gallons, of which 18,238 million gallons was in Plover Cove. Rainfall for the year was 111.41 inches, which is 30.4% above average, and the total yield from the catchments was 47.6% higher than last year.
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Mains Sub-Division
11.08 Extensions to both fresh and salt water distribution mains were carried out to supply new development areas, undersized or defective mains replaced, and alterations made to facilitate road construction work. A total of 66 miles of mains were laid as exten- sions to the fresh and salt water distribution systems. Details of mains laid are given in Appendix CC under item (9).
11.09 Systematic waste detection continued throughout the year. Quarterly checks were carried out in 294 fresh water areas and annual checks in 65 salt water areas. A number of major leaks were discovered and repaired, resulting in an estimated daily saving of more than four million gallons of water.
House Service Sub-Division
11.10 The number of additional meters installed was 70,042. This was an increase of 18% on the number installed during 1971-72 and brought the total number of meters in service to 554,089.
SUPPLY DIVISION
Chief Engineer:
H. J. WOODTHORPE, C.P.M., C.Eng., M.I.C.E., M.I.Mun.E., M.I.W.E. NG Lin-hing, B.Sc. (Calif.), D.I.C., C.Eng., M.I.C.E., M.I.Struct.E., M.I.W.E. (Acting)
General
11.11 The Division comprises a Headworks Sub-Division, respon- sible for the maintenance and operation of storage reservoirs, intakes, filter stations, trunk mains and service reservoirs, and an Operation Sub-Division, responsible for monitoring pumping stations, treatment works, service reservoirs and other facilities, for the collection and processing of hydrological data for design and record purposes, and for the development of rules for the operation of the multi-reservoir system.
11.12 At the end of the year 29,508 million gallons of water were held in storage, including 21,020 million gallons in the Plover Cove Reservoir. Storage at the end of the previous year was 25,861 million gallons, of which 18,238 million gallons was in Plover Cove. Rainfall for the year was 111.41 inches, which is 30.4% above average, and the total yield from the catchments was 47.6% higher than last year.
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