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Drainage Services Department - Sustainability Report 2012-2013

Key Statistics and Data

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Key Statistics and Data

Environmental Performance

Electricity Consumption

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Total electricity consumption (1) million kWh 242 241 240 239 240
Total energy consumption equivalent to electricity consumption GJ 8,712,000 8,676,000 8,640,000 8,604,000 8,640,000
Total CO2 emission equivalent to total electricity consumption (2) Tonnes CO2e 169,400 168,700 168,000 167,300 168,000
Average electricity consumption per unit volume of sewage treated kWh 0.2431 0.2451 0.2431 0.2426 0.2388
Volume of biogas generated from sewage treatment works million m3 9 10 9 10 10
(1) The total electricity consumption in 2008/09 and 2009/10 did not include the office at Western Magistracy as the data were not available.
(2) Territory wide default GHG emission factors (0.7) were used 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, HKSAR in February 2010.

Water Consumption

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Freshwater consumption at flood prevention and sewage treatment facilities m3 1,669,102 1,724,983 1,790,088 2,092,627 2,078,729
Daily reclaimed water produced at STWs m3 162 202 1,337 1,349 1,194

Sewage Treatment

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Volume of sewage treated million m3 991 979 979 981 1,001
Biochemical oxygen demand (BOD) removed from sewage Tonnes 116,966 106,131 126,451 107,057 100,677
Suspended solids (SS) removed from sewage 147,514 144,386 159,265 163,986 146,208
Nitrogen removed from sewage 4,769 5,430 5,317 5,541 5,310
Dewatered sludge removed from treated sewage 294,387 285,759 297,638 301,583 300,965
Screenings removed from treated sewage Figures not available 12,583 12,379 12,157 13,334
Grits removed from treated sewage 4,930 5,090 4,388 4,741

Fuel Consumption

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Total fuel consumption by DSD's pool cars Litre Figures not available 31,862
Total fuel consumption by DSD's AM cars Litre 101,343 (4) 104,170 (4) 96,407 (4) 133,967 130,675
No. of DSD's pool cars No. Figures not available 12.42
No. of DSD's AM cars No. 59.30 58.40 57.39 53.00 52.10
Total energy consumption equivalent to total fuel consumption by DSD's pool cars GJ Figures not available 1046.19
Total energy consumption equivalent to total fuel consumption by DSD's AM cars GJ 3346.50 3439.85 3183.50 4423.79 4315.08
Total GHG emission equivalent to total fuel consumption by DSD's pool cars (3) Tonnes CO2e Figures not available 8675.19
Total GHG emission equivalent to total fuel consumption by DSD's AM cars (3) Tonnes CO2 239.17 245.84 227.52 316.16 308.39
(3) GHG emission factors for mobile combustion are 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, HKSAR in February 2010.
(4) The number of AM cars of Mainland South Division and Mainland North Division were excluded as the records were not available.

Paper Consumption

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Total paper consumption Reams 13,296 14,014 12,996 11,870 11,054
A4 paper consumption Reams 12,830 13,396 12,455 11,400 10,696
A3 paper consumption Reams 466 618 541 470 358
Purchase of A4/A3 paper with recycled content Reams / % of total paper purchased 13,151 / 98.9% 13,854 / 98.9% 12,921 / 99.4% 11,850 / 99.8% 11,054 / 100%
Waste paper collected kg 13,317 17,480 18,539 14,994 11,900
Paper consumed per staff (By establishment) Reams 7.5 7.9 7.4 6.8 6.4

Waste Management

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Construction & demolition materials
C&D waste disposed of to landfills 103 kg 3,622 6,529 6,877 7,863 8,525
C&D waste disposed of to public fill areas 103 kg 139,104 275,754 745,234 854,293 765,105
Recyclable waste collected
Waste paper kg 8,488 15,372 14,978 18,679 11,983
Aluminium cans (5) kg 9.04 11.12 12.92 12.94 14.15
Plastic bottles (5) kg 17.28 18.13 27.68 28.53 29.92
(5) The amount of aluminium cans and plastic bottles collected did not include the Kowloon Government Offices and Western Magistracy as the data were not available.

Environmental Convictions of Contractors

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Convictions No. 5 2 0 1 4
Monetary value of significant fines HK$ 41,500 9,000 0 4,000 56,000

Social Performance

Staff

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Staff Establishment No. 1,869 1,859 1,847 1,845 1,856
Directorate No. 18 18 18 18 18
Professional No. 270 276 280 283 292
Technical & Site Supervisory No. 799 805 808 815 820
General & Common Grades No. 562 542 533 525 525
Model Scale I No. 220 218 208 204 201
Training
No. of training courses (including internal and external seminars/ workshops/ training courses/ visits) No. 414 323 219 256 278
No. of classes No. 937 751 624 712 768
Numbers of trainees No. 5,022 6,009 6,745 6,978 9,848
Training hours received Hours 43,876 43,285 42,793 44,369 52,597
Total expenditure on training (including internal and external seminars/ workshops/ training courses/ visits) HK$ 3,256,568 2,888,974 3,394,224 4,306,329 4,756,800
Injury
Staff injury cases (6) No. 11 11 24 14 12
No. of sick leave for officers injured on duty (7) Days 130 313 921.5 920.5 1,237
(6) 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.
(7) The number includes sick leave days granted in 2011/12 but enjoyed in 2012/13.

Staff Breakdown (2012/13)

  Unit 2012/13 By Strength
No. of Staff No. 1,739
By Post
Directorate % 0.92
Professional % 16.73
Technical & Site Supervisory % 45.95
General & Common Grades % 28.18
Model Scale I % 8.22
By Employment Type
Full-time % 100
By Employment Contract
Permanent (male) % 83.96
Permanent (female) % 16.04
By Age
Age 20-29 % 4.14
Age 30-39 % 20.87
Age 40-49 % 27.43
Age 50-59 % 46.75
Age 60 or above % 0.81
By Ethnicity
Local % 100
Non-local % 0
By Gender
Male % 83.96
Female % 16.04

Senior Management Breakdown (2012/13)

  Unit 2012/13 By Strength
No. of Staff No. 7
By Post
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 (2012/13) (8)

Type of Staff Total No. of Staff
(The total no. of staff in DSD is 1,739 (By Strength))		 Training Hours Received
(Hours) (The total no. of training hours in 2012/13 is 52,597 hours)		 Training Hours Per Staff
(Hours)
Directorate Staff 16 1,438 89.94
Professional Grade Staff 291 20,773 71.38
Technical, Site Supervisory and General Grade Staff 1,432 30,386 21.22
(8) 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 (2012/13) (9)

  Unit Male Female
Age 20-29 No. 0 0
Age 30-39 No. 0 0
Age 40-49 No. 2 0
Age 50-59 No. 6 0
Age 60 or above No. 42 1
(9) The staff turnover figures exclude those General/Common Grades' staff on inter-department transfer.

New Employee Hires (2012/13) (10)

  Unit Male Female
Total no. of New Employee Hires No. 41 19
By Age
Age 20-29 No. 16 9
Age 30-39 No. 23 10
Age 40-49 No. 2 0
Age 50-59 No. 0 0
Age 60 or above No. 0 0
(10) The above figures involve staff (position as at 31.3.2013) with their 1st appointment date falling within the period from 1.4.2011 to 31.3.2013.

Retention after Paternity Leave

  Unit 2012/13
No. of employees took paternity leave in 2012/13 No. 39
No. of employees completed paternity leave in 2012/13 No. 35
No. of employees leaving the service after paternity leave ended in 2012/13 No. 0
No. of employees returning to work after paternity leave in 2012/13 No. 35
Retention rate after paternity leave (11) % 100
(11) The retention rate is based on the no. of employees who took paternity leave in 2011/12 and the no. of those employees who were still employed as at 31 Mar 2013.

Retention after Maternity Leave

  Unit 2012/13
No. of employees took maternity leave in 2012/13 No. 8
No. of employees completed maternity leave in 2012/13 No. 6
No. of employees leaving the service after maternity leave ended in 2012/13 No. 0
No. of employees returning to work after maternity leave in 2012/13 No. 6
Retention rate after maternity leave (12) % 100
(12) The retention rate is based on the no. of employees who took maternity leave in 2011/12 and the no. of those employees who were still employed as at 31 Mar 2013.

Accident Rate

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Number of fatalities
Total no. of Fatalities No. 0 0 0 1 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 0 0 1 (Male) 0
Fatal accident rate per 100,000 man-hours
Construction and maintenance works carried out directly by DSD's staff - 0 0 0 0 0
Construction and maintenance works undertaken by DSD's contractors - 0 0 0 0.005 0
Number of non-fatal accidents
Construction and maintenance works carried out directly by DSD's staff No. 11 11 24 14 12
Construction and maintenance works undertaken by DSD's contractors No. 28 46 59 64 36
Non-fatal accident rate per 100,000 man-hours
Construction and maintenance works carried out directly by DSD's staff - 0.16 0.16 0.35 0.21 0.18
Construction and maintenance works undertaken by DSD's contractors - 0.28 0.34 0.38 0.34 0.19

Community Work

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Total number of voluntary work hours carried out by our staff Hours 272 943.8 230 469 589
Number of active Voluntary Service Team members (13) No. - - - - 10
Number of staff received commendation for voluntary service (14) No. - - - - 4
Number of volunteers No. 47 48 59 60 68
Number of voluntary projects completed No. 17 8 10 14 18
(13) Active Voluntary Service Team member is defined as team member contributes more than 10 hours on voluntary service.
(14) Staff who can receive commendation for voluntary service is defined as team member contributes more than 50 hours on voluntary service.

Charitable Contributions

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Employee fundraising (HK$ thousands) 229 83 136 133 56

Legal Compliance

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Convicted cases of corruption No. 0 0 0 1 0

Economic Performance

Value and Number of Drainage and Sewerage Projects under Planning, Design and Construction

  Unit 2008/09 2009/10 2010/11 2011/12 2012/13
Value of drainage projects under planning, design and construction million of HK$ 13,330 13,373 12,707 14,323 11,288
Value of sewerage projects under planning, design and construction million of HK$ 33,288 36,635 39,875 41,200 49,872
No. of drainage projects under planning, design and construction No. 34 29 24 22 20
No. of sewerage projects under planning, design and construction No. 55 58 70 70 77

Sewage Service Charge Consumption and Payment Statistics

  2008/09 2009/10 2010/11 2011/12 2012/13
Number of water accounts (in thousand) 2,730 2,750 2,770 2,800 2,820
Number of water accounts liable to pay sewage charge (in thousand) 2,530 2,550 2,570 2,590 2,610
Number of Accounts - Trade Effluent Surcharge (TES) (in thousand) 18.1 19.8 20.7 21.4 22

Number of enquiries received for the past five years

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2008/09 Telephone enquiries received 6,799, 2008/09 Written enquiries received 1,490, 2009/10 Telephone enquiries received 7,331, 2009/10 Written enquiries received 1,547, 2010/11 Telephone enquiries received 5,509, 2010/11 Written enquiries received 789, 2011/12 Telephone enquiries received 4,837, 2011/12 Written enquiries received 611, 2012/13 Telephone enquiries received 5,923, 2011/12 Written enquiries received 826

Number of Business reclassification applications handled for the past five years

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2008/09 handled 314 cases, 2009/10 handled 210 cases, 2010/11 handled 273 cases, 2011/12 handled 274 cases, 2012/13 handled 237 cases

Number of new TES accounts identified for the past five years

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2008/09 874 new TES accounds identified, 2009/10 1,039 new TES accounds identified, 2010/11 967 new TES accounds identified, 2011/12 921 new TES accounds identified, 2012/13 759 new TES accounds identified

Water consumption of Sewered Accounts (528 million m3) - Customers Pattern

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59.3% Domestic, 4.2% Government, 16.7% Restaurants, 0.2% Bleaching & Dyeing, 1.1% Laundries, 0.1% Textiles & Waering Apparel except Footwear, 1.7% Food Manufacturing, 16.7% Other Non-domestic

Domestic Accounts - Sewage Charge Payment Pattern (HK$/month)

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13.3% Free, 42.4% $0.1 to $14.5, 20.8% $14.5 to 23.4, 21.0% $23.4 to $50.5, 2.5% over $50.5

TES Accounts - TES Payment Pattern (HK$/month)

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29.6% $0 to $100, 50.7% $101 to $1000, 17.1% $1001 to $5000, 2.6% $5001 and above

Sewage Charge (HK$776 M) - Revenue Pattern by Type

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56.2% Domestic, 4.7% Government, 14.8% Restaurants, 0.1% Bleaching & Dyeing, 1.4% Laundries, 0.1% Textiles & Wearing Apparel except Footwear, 2.0% Food Manufacturing, 20.7% Other Non-domestic

Trade Effluent Surcharge (HK$207 M) - Revenue Pattern by Type

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91.3% Restaurants, 0.2% Bleaching & Dyeing, 0.1% Textiles & Wearing Apparel except Footwear, 7.6% Food Manufacturing, 0.8% Others

Sewage Charge and Trade Effluent Surcharge (HK$983 M) - Revenue Pattern by Type

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44.4% Domestic, 3.7% Government, 30.9% Restaurants, 0.1% Bleaching & Dyeing, 1.1% Laundries, 0.1% Textiles & Wearing Apparel except Footwear, 3.1% Food Manufacturing, 16.6% Other Non-domestic

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

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