1968-1969 — Page 178

Public Works Department Annual Report 工務司署年報 All AI Reviewed
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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) 154

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

Old reservoirs

Plover Cove

Pumped from the River Indus

Extracted from the Muk Wu Wells

Received from China by pipeline

1967-68

1968-69

22,882

33,605

11,729

16,118

4,062

6,152

164

84

15,371

15,053

•

54,208

71,012

416

419

1,070

2,857

52,722

67,736

Less Losses:

At Indus Fabridam ...

Plover Cove pumped to waste

Total

(3) Storage (in million gallons)

4

Total storage in the Colony's impounding reservoirs:

Date

1st April, 1968

1st July, 1968

1st October, 1968

1st January, 1969

31st March, 1969

་ ་

Quantity Stored

% Full

Old

Plover

Old

Plover

Reservoirs

Cove

Reservoirs

Cove

12,767

3,709

76.0

10.0

15,971

12,146

95.0

32.5

***

14,680

28,840

87.2

77.3

9,222

28,291

54.8

75.8

7,640

25,417

45.5

68.2

(4) Consumption (in million gallons)

Urban areas

New Territories (minor supplies)

Total

•

154

1967-68

1968-69

39,919

51,149

(6,446 hours)

(8,760 hours)

397

288

40,316

51,437

age 178

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