APPENDIX Z
WATERWORKS OFFICE
GENERAL Statistics
(1) Rainfall (in inches)
1967-68 1968-69 Rainfall recorded by Royal Observatory 69.67 87.37 Average rainfall recorded in Waterworks catchments 68.95 83.87 Average annual rainfall 69.31 85.62(2) Yield (in million gallons)
Yields from catchment areas: 1967-68 1968-69 Old reservoirs 22,882 33,605 Plover Cove 11,729 16,118 Pumped from the River Indus 4,062 6,152 Extracted from the Muk Wu Wells 164 84 Received from China by pipeline 15,371 15,053 54,208 71,012 Less Losses: At Indus Fabridam ... 416 419 Plover Cove pumped to waste 1,070 2,857 Total 52,722 67,736(3) Storage (in million gallons)
Total storage in the Colony's impounding reservoirs: Quantity Stored % Full Date Old Reservoirs Plover Cove Old Reservoirs Plover Cove 1st April, 1968 12,767 3,709 76.0 10.0 1st July, 1968 15,971 12,146 95.0 32.5 1st October, 1968 14,680 28,840 87.2 77.3 1st January, 1969 9,222 28,291 54.8 75.8 31st March, 1969 7,640 25,417 45.5 68.2(4) Consumption (in million gallons)
1967-68 1968-69 Urban areas 39,919 51,149 New Territories (minor supplies) 397 288 Total 40,316 51,437 (6,446 hours) (8,760 hours) 154Page 178