Skip to main content

Drainage Services Department - Sustainability Report 2014-15

Key Statistics and Data

[Executive Summary] [Traditional Chinese Version] [Simplified Chinese Version] [Graphical Version] [Independent Assurance Statement] [Key Statistics and Data] [GRI Content Index] [Feedback Form] [Sitemap]

[banner11.jpg]

Environmental Performance

Energy Consumption

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
By DSD
Electricity GJ 864,000 860,400 864,000 890,244 947,646
(Million kWh) (240) (239) (240) (247) (263)
Gasoline            
 Pool cars GJ Figures not available 1,046.19 877.48 893.14
  (Litre) (31,862) (26,724) (27,048)
 AM cars GJ 3,183.50 4,423.79 4,315.08 4,103.83 3,799.29
  (Litre) (96,407) (133,967) (130,675) (124,278) (115,060)
Biogas(1) Million m3 9 10 10 9 10
Average electricity consumption per unit volume of sewage treated kWh 0.2431 0.2426 0.2388 0.2409 0.2591
By DSD’s contractors
Electricity GJ Figures not available 137,952 23,328
(Million kWh) (38.32) (6.48)
Gasoline GJ Figures not available 13,153 10,438
(Litre) (398,325) (316,101)
Diesel GJ Figures not available 94,698 27,451
(Litre) (2,594,463) (752,080)

Greenhouse Gas (GHG) Emissions2

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
By DSD
Electricity purchased tonnes CO2e 168,000 167,300 168,000 173,103 184,265
Gasoline combustion            
 Pool cars tonnes CO2 Figures not available 75.19 63.07 63.83
 AM cars tonnes CO2 227.52 316.16 308.39 336.53 271.54
By DSD’s contractors
Electricity purchased tonnes CO2e Figures not available 26,824 4,536
Fuel consumption tonnes CO2e Figures not available 7,865 2,824
(1) Generated from sewage treatment works
(2) GHG emission were calculated based on the Guidelines to Account for and Report on Greenhouse Gas Emissions and Removals for buildings (Commercial, Residential or Institutional Purpose) in Hong Kong issued by the Environmental Protection Department and Electrical and Mechanical Services Department, HKSAR in February 2010.

Water Consumption

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Freshwater consumption at flood prevention and sewage treatment facilities m3 1,790,088 2,092,627 2,078,729 1,709,925 1,032,424
Daily reclaimed water produced at STWs m3 1,337 1,349 1,194 1,151 1,560
Percentage of water reclaimed % 0.07 0.06 0.06 0.07 0.15

Sewage Treatment

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Volume of sewage treated Million m3 979 981 1,001 1,021 1,011
Biochemical oxygen demand (BOD) removed from sewage Tonnes 126,451 107,057 100,677 109,579 115,681
Suspended solids (SS) removed from sewage 159,265 163,986 146,208 169,792 207,738
Nitrogen removed from sewage 5,317 5,541 5,310 6,067 6,820
Dewatered sludge removed from treated sewage 297,638 301,583 300,965 298,093 355,220
Screenings removed from treated sewage 12,379 12,157 13,334 13,663 15,817
Grits removed from treated sewage 5,090 4,388 4,741 4,903 5,429

Paper Consumption

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Total paper consumption Reams (500 pieces) 12,996 11,870 11,054 10,520 10,012
 A4 paper consumption Reams (500 pieces) 12,455 11,400 10,696 10,080 9,452
 A3 paper consumption Reams (500 pieces) 541 470 358 440 470
Purchase of A4/A3 paper with recycled content Reams(% of total paper purchased) 12,921
(99.4%)		 11,850
(99.8%)		 11,054
(100%)		 10,520
(100%)		 10,012
(100%)
Waste paper collected kg 18,539 14,994 11,900 13,284 28,918
Paper consumed per staff (By establishment) Reams (500 pieces) 7.0 6.4 6.0 5.6 5.3

Waste Management

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Construction & demolition materials
C&D waste disposed of to landfills(3) 103 kg 6,877 7,863 8,525 6,093 6,420
C&D waste disposed of to public fill areas(3) 103 kg 745,234 854,293 765,105 584,018 238,662
Recyclable waste collected
Waste paper(4) kg 14,978 18,679 11,983 13,284 28,918
Aluminium cans(5) kg 12.92 12.94 14.15 14.76 30.70
Plastic bottles(5) kg 27.68 28.53 29.92 27.78 43.70
(3) C&D waste includes metals, paper / cardboard packaging waste, chemical waste and other wastes such as general refuse.
(4) The amount of waste paper collected did not include those collected from project sites.
(5) The amount of aluminium cans and plastic bottles collected did not include those collected from the Kowloon Government Offices and Western Magistracy as the data were not available.

Greening

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Total number of Trees Planted No. 1,200 2,500 1,996 2,169 570
Area of Green Roof Added m2 1,200 2,900 3,200 4,902 6,051
Electricity Generated from Biogas in Million kWh 25 27 30 27 28

Social Performance

Staff

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Staff Establishment No. 1,847 1,845 1,856 1,862 1,883
 Directorate No. 18 18 18 18 18
 Professional No. 280 283 292 292 306
 Technical & Site Supervisory No. 808 815 820 827 838
 General & Common Grades No. 533 525 525 526 524
 Model Scale I No. 208 204 201 199 197
Training
Training courses(6) No. 219 256 278 584(7) 624
Trainees No. 6,745 6,978 9,848 6,574 7,159
Training hours received Hours 42,793 44,369 52,597 54,517 57,600
Average Training Hours per Staff Hours 23.2 24.0 28.3 31.6 31.8
Total expenditure on training(6) HK$ 3,394,224 4,306,329 4,756,800 3,856,237 4,201,000
Injury
Staff injury cases(8) No. 24 14 12 10 11
No. of sick leave for officers injured on duty Days 921.5 920.5 1,237 603 914.5(9)
(6) It includes internal and external seminars/ workshops/ training courses/ visits.
(7) It includes training courses held by CSTDI and staff-initiated external courses.
(8) The definition of staff injury cases is the reported cases of occupational injuries, under Employee's Compensation Ordinance, resulting in death or incapacity for work over 3 days.
(9) The number includes sick leave days granted in 2013/14 but enjoyed in 2014/15.

Staff Breakdown in 2014-15

  Unit By Strength
No. of Staff No. 1,735
By Post
Directorate % 0.9
Professional % 17.6
Technical & site supervisory % 47.6
General & common grades % 26.7
Model scale I % 7.2
By Employment Type
Full-time % 100
Part-time % 0
By Employment Contract
Permanent (male) % 83.6
Permanent (female) % 16.5
By Age
Age 20-29 % 6.4
Age 30-39 % 20.5
Age 40-49 % 25.0
Age 50-59 % 47.0
Age 60 or above % 1.3
By Ethnicity
Local % 100
Non-local % 0
By Gender
Male % 83.6
Female % 16.5

Senior Management Breakdown in 2014-15

  Unit By Strength
No. of Staff No. 6
By Age
Age 20-29 % 0
Age 30-39 % 0
Age 40-49 % 0
Age 50-59 % 100
Age 60 or above % 0
By Ethnicity
Local % 100
Non-local % 0
By Gender
Male % 100
Female % 0

Training Hours Breakdown in 2014-15(10)

Type of Staff No. of Staff Training Hours Received(Hours) Training Hours Per Staff(Hours)
Directorate Staff 16 1,938 121.10
Professional Grade Staff 305 25,640 84.07
Technical, Site Supervisory, General Grade and Model Scale I Staff 1,413 30,023 21.25
(10) As there is no distinct requirement regarding receiving training in terms of gender, therefore we do not report the data broken down by gender.

Staff Turnover in 2014-15(11)

  Unit Male Female
Age 20-29 No. 0 0
Age 30-39 No. 0 1
Age 40-49 No. 0 0
Age 50-59 No. 6 1
Age 60 or above No. 49 1
(11) The staff turnover figures exclude those General/Common Grades' staff on inter-department transfer.

New Employee Hires in 2014-15(12)

  Unit Male Female
No. of New Employee Hires No. 71 14
By Age
Age 20-29 No. 36 5
Age 30-39 No. 29 8
Age 40-49 No. 5 1
Age 50-59 No. 1 0
Age 60 or above No. 0 0
(12) The above figures involve staff with their 1st appointment date falling within the period from 1 April 2014 to 31 March 2015.

Accident Rate

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Number of fatalities
No. of Fatalities No. 0 1 0 2 0
Construction and maintenance works carried out directly by DSD's staff No. 0 0 0 0 0
Construction and maintenance works undertaken by DSD's contractors No. 0 1 (Male) 0 2 (Male) 0
Fatal accident rate per 100,000 man-hours
Construction and maintenance works carried out directly by DSD's staff(13) - 0 0 0 0 0
Construction and maintenance works undertaken by DSD's contractors(13) - 0 0.005 0 0.012 0
Number of non-fatal accidents
Construction and maintenance works carried out directly by DSD's staff(13) No. 24 14 12 10 11
Construction and maintenance works undertaken by DSD's contractors(13) No. 59 64 36 33 18
Non-fatal accident rate per 100,000 man-hours
Construction and maintenance works carried out directly by DSD's staff(13) - 0.35 0.21 0.18 0.15 0.17
Construction and maintenance works undertaken by DSD's contractors(13) - 0.38 0.34 0.19 0.21 0.13
(13) We currently do not collect these figures by gender.

Community Work and Charitable Contributions

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Total number of voluntary work hours carried out by our staff Hours 230 469 589 800 1000
Number of voluntary projects completed No. 10 14 18 21 25
Employee fundraising HK$ thousands 136 133 56 67 73

Economic Performance

The two major types of expenses in DSD are operational expenses and public works project expenses. Our day-to-day departmental operation is financed by the General Revenue Account of the Government, while funding for public works projects are approved on a project-by-project basis by the Finance Committee of the Legislative Council. To ensure public funds are used effectively, we strive to enhance operation efficiency by adopting new technologies and management practices.

Operating Expenditure

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Recurrent Expenditure Personal Emoluments $M 685.9 727.4 769.3 793.5 839.8
Departmental Expenses(14) $M 1,083.8 1,111.2 1,141.4 1,178.9 1,286.4
Non-recurrent Expenditure $M 7.1 0.0 0.0 0.0 0.0
Total $M 1,776.8 1,838.6 1,910.7 1,972.4 2,162.2
(14) It included expenses on Mandatory Provident Fund & Civil Service Provident Fund.

Capital Works Project Expenditure

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Value of drainage projects under planning, design and construction $M 12,707 14,323 11,288 12,311 12,975
Value of sewerage projects under planning, design and construction $M 39,875 41,200 49,872 78,749 80,483
No. of drainage projects under planning, design and construction No. 24 22 20 20 17
No. of sewerage projects under planning, design and construction No. 70 70 77 87 81

Sewage Services Operating Accounts

  Unit 2010-11 2011-12 2012-13 2013-14 2014/15
Sewage Charge Revenue $M 639 703 776 875 960
Trade Effluent Surcharge Revenue $M 201 204 207 222 233
Other Revenue $M 35 40 40 44 46
Overall Revenue $M 875 947 1,023 1,141 1,239
Expenditure (excluding depreciation) $M (1,402) (1,484) (1,538) (1,594) (1,684)
Depreciation $M (723) (782) (808) (850) (843)
Overall Expenditure $M (2,125) (2,266) (2,346) (2,444) (2,527)
(Deficit) $M (1,250) (1,319) (1,323) (1,303) (1,288)

Note : The 2014-15 figures are provisional and subject to endorsement by the Sewage Services Accounts Committee.

Sewage Services Operating Cost Recovery Rate

  Unit 2013-14 2014-15
Revenue of Sewage Charge and Trade Effluent Surcharge $M 1,097 1,193
Expenditure (excluding depreciation) of Sewage Charge and Trade Effluent Surcharge $M 1,550 1,638
Operating Cost Recovery Rate % 70.8 72.8

Note : The 2014-15 figures are provisional and subject to endorsement by the Sewage Services Accounts Committee.

Sewage Service Charge Consumption and Payment Statistics

  2010-11 2011-12 2012-13 2013-14 2014-15
Number of water accounts (in thousand) 2,770 2,800 2,820 2,860 2,880
Number of water accounts liable to pay sewage charge (in thousand) 2,570 2,590 2,610 2,640 2,663
Number of Accounts - Trade Effluent Surcharge (TES) (in thousand) 20.7 21.4 22 23 24

Routine Services

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Enquiries
Telephone Enquiries No. 5,509 4,837 5,923 5,426 6,467
Written Enquiries No. 789 611 826 616 776
Business reclassification
No. of Cases Handled No. 273 274 237 145 189
TES accounts identified
Number of New TES Accounts Identified No. 967 921 759 903 1,296

Number of Enquiries Received for the Past Five Years

[s11_chart1.jpg]

Business Reclassification Applications Handled for the Past Five Years

[s11_chart2.jpg]

Number of New TES Accounts Identified for the Past Five Years

[s11_chart3.jpg]

Water consumption of Sewered Accounts ($544 Million m3) - Customers Pattern in 2014-15

[s11_chart4.jpg]

Domestic Accounts - Sewage Charge Payment Pattern in 2014-15

[s11_chart5.jpg]

TES Accounts - TES Payment Pattern in 2014-15

[s11_chart6.jpg]

Sewage Charge ($960 M) - Revenue Pattern by Type in 2014-15(15)

[s11_chart7.jpg]

Note : The figures are provisional only and are subject to endorsement by the Sewage Services Accounts Committee.

Trade Effluent Surcharge ($233 M) - Revenue Pattern by Type in 2014-15

[s11_chart8.jpg]

Note : The figures are provisional only and are subject to endorsement by the Sewage Services Accounts Committee.

Sewage Charge and Trade Effluent Surcharge ($1,193 M) - Revenue Pattern by Type in 2014-15

[s11_chart9.jpg]

Note : The figures are provisional only and are subject to endorsement by the Sewage Services Accounts Committee.

  Unit 2010-11 2011-12 2012-13 2013-14 2014-15
Flooding Prevention
Total Number of Flooding Blackspots No. 16 15 13 11 10
Sewage Treatment
Coverage of public sewerage (population percentage) - 93% 93% 93% 93% 93%
Total length of sewerage network km 1,637 1,647 1,683 1,695 1,700
Total no. of sewage treatment facilities No. 284 287 292 293 297
Volume of Sewage Treated Million m3 979 981 1,001 1,021 1,011
By Preliminary Treatment Million m3 293 286 306 303 228
By Primary Treatment Million m3 4 4 5 5 5
By Chemically Enhanced Primary Treatment (CEPT) Million m3 517 525 525 541 606
By Secondary Treatment Million m3 165 166 165 172 172
By Tertiary Treatment Million m3 0.13 0.13 0.2 0.15 0.14

Procurement Practice

  Unit 2012-13 2013-14 2014-15
Proportion of spending on locally-based suppliers % 98.0% 98.8% 99.6%
Top

 

[Executive Summary] [Traditional Chinese Version] [Simplified Chinese Version] [Graphical Version] [Independent Assurance Statement] [Key Statistics and Data] [GRI Content Index] [Feedback Form] [Sitemap]

Home | Director's Statement | About this Report | The Highlights of 25th Anniversary | Governance Approach | Our Core Responsibilities | Managing the Environment | Stakeholder Engagement Activities | Joining Hands with Working Partners | Care for Our Staff | Meeting the Targets |

(c) Copyright 2015 Best viewed by MS IE 8.0 or above with resolution 1024 x 768.