# APPENDIX CC
# WATERWORKS OFFICE
## GENERAL STATISTICS
(1) Rainfall (in inches)
1971-72 1972-73 Rainfall recorded by Royal Observatory 76.40 111.41 Average Rainfall recorded in Waterworks Catchments 65.90 106.40 Long Term Mean annual rainfall at the Royal Observatory(2) Yield (in million gallons)
Yield from catchment areas: 1971-72 1972-73 Old reservoirs 28,340 38,712 Plover Cove 10,706 18,905 Pumped from the River Indus and Extracted from Muk Wu Wells 742 1,012 Received from China by pipeline ... ... Less Losses: At Indus and Tai Po Tau Fabridam ... 15,491 18,604 ... Total 55,279 77,233(3) Storage (in million gallons)
Total storage in the Colony's impounding reservoirs: 1st April, 1972 1st July, 1972 55,279 77,233 Quantity Old Reservoirs Stored Plover Cove % Full Old Plover Cove 1st April, 1972 7,623 18,238 45.4 49.6 1st July, 1972 15,288 33,082 91.0 90.0 1st October, 1972 14,486 36,546 86.2 87.7* 1st January, 1973 13,192 27,421 78.5 65.8 1st April, 1973 8,489 21,019 50.5 50.4(4) Consumption (in million gallons)
Fresh Water 1971-72 1972-73 Urban areas 66,844 73,485 DLO (8,784 hours) 168 (8,760 hours) New Territories (minor supplies) 110 ... Total 67,012 73,595 Daily average 183.1 214.9 Highest daily consumption 201.6 234.9 Salt Water 1971-72 1972-73 13,867 13,108* Maximum capacity raised to 41,689 m.g. (August, 1972.)
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APPENDIX CC
WATERWORKS OFFICE
GENERAL STATISTICS
(1) Rainfall (in inches)
1971-72
1972-73
Rainfall recorded by Royal Observatory
76.40
111.41
Average Rainfall recorded in Waterworks Catchments Long Term Mean annual rainfall at the Royal
65.90
106.40
Observatory
(2) Yield (in million gallons)
Yield from catchment areas:
85.41
85.41
1971-72
1972-73
Old reservoirs
28,340
...
38,712
Plover Cove
10,706
...
18,905
Pumped from the River Indus and Extracted from
Muk Wu Wells
742
...
...
1,012
Received from China by pipeline
Less Losses:
At Indus and Tai Po Tau Fabridam
...
•
15,491
18,604
55,279
77,233
...
Total
...
(3) Storage (in million gallons)
Total storage in the Colony's impounding reservoirs:
1st April, 1972
1st July, 1972
...
55,279
77,233
Quantity Old
Stored
% Full
Plover
Old
Plover
Reservoirs
Cove
Reservoirs
Cove
7,623
18,238
45.4
49.6
15,288
33,082
91.0
90.0
14,486
36,546
86.2
87.7*
13,192
27,421
78.5
65.8
...
...
8,489
21,019
50.5
50.4
1st October, 1972
1st January, 1973
1st April, 1973
(4) Consumption (in million gallons)
Fresh Water
Urban areas
DLO
New Territories (minor supplies)
Total
1971-72
66,844
1972-73 73,485
(8,784 hours) 168
(8,760 hours)
110
67,012
73,595
1971-72
1972-73
...
•
183.1 214.9
201.6
234.9
1971-72 13,867
1972-73
13,108
Daily average
...
Highest daily consumption
Salt Water
* Maximum capacity raised to 41,689 m.g. (August, 1972.)
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