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Key Statistics and Data

Environmental Performance

Energy Consumption

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
By DSD (G4-EN3)
Electricity	GJ	860,400	864,000	890,244	947,646	988,740
Electricity	(Million kWh)	(239)	(240)	(247)	(263)	(275)
Gasoline
Pool cars	GJ	Figures not available	1,046.19	877.48	893.14	824.63
Pool cars	(Litre)	Figures not available	(31,862)	(26,724)	(27,048)	(24,974)
AM cars	GJ	4,423.79	4,315.08	4,103.83	3,799.29	3,496.86
AM cars	(Litre)	(133,967)	(130,675)	(124,278)	(115,060)	(105,901)
Biogas¹	Million m³	10	10	9	10	10
Average electricity consumption per unit volume of sewage treated (G4-EN5)	kWh	0.2426	0.2388	0.2409	0.2591	0.2716
By DSD’s contractors (G4-EN4)
Electricity	GJ	Figures not available		137,952	23,328	97,798
Electricity	(Million kWh)	Figures not available		(38.32)	(6.48)	(27.17)
Gasoline	GJ	Figures not available		13,153	10,438	6,834
Gasoline	(Litre)	Figures not available		(398,325)	(316,101)	(187,239)
Diesel	GJ	Figures not available		94,698	27,451	42,601
Diesel	(Litre)	Figures not available		(2,594,463)	(752,080)	(1,167,162)

(1)	Generated from sewage treatment works

Greenhouse Gas (GHG) Emissions²

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
By DSD
Electricity purchased (Scope 2) (G4-EN16)	Tonnes CO₂	167,300	168,000	173,103	184,265	187,611
Gasoline combustion (Scope 1) (G4-EN15)
Pool cars	Tonnes CO₂	Figures not available	75.19	63.07	63.83	65.90
AM cars	Tonnes CO₂	316.16	308.39	336.53	271.54	249.93
By DSD’s contractors (G4-EN17)
Electricity purchased (Scope 3)	Tonnes CO₂e	Figures not available		26,824	4,536	19,016
Fuel consumption³ (Scope 3)	Tonnes CO₂e	Figures not available		7,865	2,824	3,561

(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.
(3)	Generated from stationary combustion of diesel and mobile combustion of petrol i.e. vehicle consumption

Water Consumption

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
Freshwater consumption at flood prevention and sewage treatment facilities (G4-EN8)	m³	2,092,627	2,078,729	1,709,925	2,085,560	2,050,936
Daily reclaimed water produced at STWs	m³	1,349	1,194	1,151	1,565	1,512
Percentage of water reclaimed (G4-EN10)	%	0.06	0.06	0.07	0.08	0.07

Sewage Treatment

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
Volume of sewage treated (G4-EN22)	Million m³	981	1,001	1,021	1,011	1,007
Biochemical oxygen demand (BOD) removed from sewage	Tonnes	107,057	100,677	109,579	115,681	124,569
Suspended solids (SS) removed from sewage		163,986	146,208	169,792	207,738	242,933
Nitrogen removed from sewage		5,541	5,310	6,067	6,820	6,551
Dewatered sludge removed from treated sewage		301,583	300,965	298,093	355,220	392,396
Screenings removed from treated sewage		12,157	13,334	13,663	15,817	15,172
Grits removed from treated sewage		4,388	4,741	4,903	5,429	6,631

Waste Management (G4-EN23)

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
Construction & demolition materials
C&D waste disposed of to landfills⁴	10³ kg	7,863	8,525	6,093	6,420	6,998
C&D waste disposed of to public fill areas³	10³ kg	854,293	765,105	584,018	238,662	235,735
Recyclable waste collected
Waste paper⁵	kg	18,679	11,983	13,284	28,918	19,360
Aluminium cans⁶	kg	12.94	14.15	14.76	30.70	19.73
Plastic bottles⁵	kg	28.53	29.92	27.78	43.70	20.71

Material consumption (G4-EN1)

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
By DSD
Total paper consumption	Reams	11,870	11,054	10,520	10,012	9,608
A4 paper	Reams	11,400	10,696	10,080	9,452	9,357
A3 paper	Reams	470	358	440	470	251
Purchased paper with recycled content	Reams(% of total paper purchased)	11,850 (99.8%)	11,054 (100%)	10,520 (100%)	10,012 (100%)	9,608 (100%)
Paper consumed per staff (By establishment)	Reams	6.4	6.0	5.6	5.3	5.0
By DSD’s contractors
Rebar	Tonnes	Figures not available				7,165
Steel	Tonnes					3,171
Bricks	m³					30
Cement	Tonnes					2,406
Cement Mortar	m³					263
Concrete	m³					50,616
Sand	Tonnes					12,586
Stones	Tonnes					9,617
Office paper	Tonnes					27

(3)	Generated from stationary combustion of diesel and mobile combustion of petrol i.e. vehicle consumption
(4)	Construction and Demolition (C&D) waste includes metals, paper / cardboard packaging waste, chemical waste and other wastes such as general refuse.
(5)	The amount of waste paper collected did not include those collected from project sites.
(6)	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	2011-12	2012-13	2013-14	2014-15	2015-16
Trees Planted	No.	2,500	1,996	2,169	570	2,300
Area of Green Roof Added	m²	2,900	3,200	4,902	6,051	4,015
Electricity Generated from Biogas	Million kWh	27	30	27	28	32

Social Performance

Staff

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
Staff Establishment	No.	1,845	1,856	1,862	1,883	1,914
Directorate	No.	18	18	18	18	18
Professional	No.	283	292	292	306	310
Technical & Site Supervisory	No.	815	820	827	838	865
General & Common Grades	No.	525	525	526	524	526
Model Scale I	No.	204	201	199	197	195
Training
Training courses⁷	No.	256	278	584⁸	624	654
Trainees	No.	6,978	9,848	6,574	7,159	8,019
Training hours received	Hours	44,369	52,597	54,517	57,600	58,520
Average Training Hours per Staff	Hours	24.0	28.3	31.6	31.8	33
Total expenditure on training ⁶	HK$	4,306,329	4,756,800	3,856,237	4,201,000	3,585,011
Injury (G4-LA6)
Staff injury cases ⁹	No.	14	12	10	11	13
No. of sick leave for officers injured on duty	Days	920.5	1,237	603	914.5	870.5¹⁰

Staff Breakdown in 2015-16

	Unit	By Strength
No. of Staff (G4-10)	No.	1,761
By Post
Directorate	%	1.2
Professional	%	17.4
Technical & site supervisory	%	48.0
General & common grades	%	23.5
Model scale I	%	10.1
By Employment Type (G4-10)
Full-time	%	100
Part-time	%	0
By Employment Contract (G4-10)
Permanent (male)	%	83.8
Permanent (female)	%	16.2
By Age
Age 20-29	%	7.7
Age 30-39	%	21.0
Age 40-49	%	24.1
Age 50-59	%	46.1
Age 60 or above	%	1.2
By Ethnicity
Local	%	100
Non-local	%	0
By Gender
Male	%	83.8
Female	%	16.2

(6)	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.
(7)	It includes internal and external seminars/ workshops/ training courses/ visits.
(8)	It includes training courses held by CSTDI and staff-initiated external courses.
(9)	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.
(10)	The number includes sick leave days granted in 2014/15 but enjoyed in 2015/16.

Senior Management Breakdown in 2015-16

	Unit	By Strength
No. of Staff	No.	7
By Age
Age 20-29	%	0
Age 30-39	%	0
Age 40-49	%	14.3
Age 50-59	%	85.7
Age 60 or above	%	0
By Ethnicity
Local	%	100
Non-local	%	0
By Gender
Male	%	100
Female	%	0

Training Hours Breakdown in 2015-16¹¹

Type of Staff	No. of Staff	Training Hours Received(Hours)	Training Hours Per Staff(Hours)
Directorate Staff	20	1,267	63.3
Professional Grade Staff	306	23,541	76.9
Technical, Site Supervisory, General Grade and Model Scale I Staff	1,445	33,712	23.3

Staff Turnover in 2015-16¹²

	Unit	Male	Female
Age 20-29	No.	0	0
Age 30-39	No.	1	0
Age 40-49	No.	0	0
Age 50-59	No.	4	4
Age 60 or above	No.	52	5

New Employee Hires in 2015-16¹³

	Unit	Male	Female
No. of New Employee Hires	No.	88	12
By Age
Age 20-29	No.	39	7
Age 30-39	No.	35	5
Age 40-49	No.	9	0
Age 50-59	No.	5	0
Age 60 or above	No.	0	0

Accident Rate (G4-LA6)

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
Number of fatalities
No. of Fatalities	No.	1	0	2	0	1
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.	1 (Male)	0	2 (Male)	0	1 (Male)
Fatal accident rate per 100,000 man-hours
Construction and maintenance works carried out directly by DSD's staff¹⁴	-	0	0	0	0	0
Construction and maintenance works undertaken by DSD's contractors¹³	-	0.005	0	0.012	0	0.011
Number of non-fatal accidents
Construction and maintenance works carried out directly by DSD's staff¹³	No.	14	12	10	11	13
Construction and maintenance works undertaken by DSD's contractors¹³	No.	64	36	33	18	14
Non-fatal accident rate per 100,000 man-hours
Construction and maintenance works carried out directly by DSD's staff¹³	-	0.21	0.18	0.15	0.17	0.20
Construction and maintenance works undertaken by DSD's contractors¹³	-	0.34	0.19	0.21	0.13	0.16

(11)	As there is no distinct requirement regarding receiving training in terms of gender, therefore we do not report the data broken down by gender.
(12)	The staff turnover figures exclude those General/Common Grades’ staff on inter-department transfer.
(13)	The above figures involve staff with their 1st appointment date falling within the period from 1 April 2014 to 31 March 2015.

Community Work and Charitable Contributions (G4-EC8)

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
Total number of voluntary work hours carried out by our staff	Hours	469	589	800	1,000	1,200
Number of voluntary projects completed	No.	14	18	21	25	27
Employee fundraising	HK$ thousands	133	56	67	73	65

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 (G4-EC1)

		Unit	2011-12	2012-13	2013-14	2014-15	2015-16
Recurrent Expenditure	Personal Emoluments	$M	727.4	769.3	793.5	839.8	882.3
Recurrent Expenditure	Departmental Expenses¹⁵	$M	1,111.2	1,141.4	1,178.9	1,286.4	1,487.8
Non-recurrent Expenditure		$M	0.0	0.0	0.0	0.0	0.0
Total		$M	1,838.6	1,910.7	1,972.4	2,126.2	2,370.1

(15)	It included expenses on Mandatory Provident Fund & Civil Service Provident Fund.

Capital Works Project Expenditure

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
Value of drainage projects under planning, design and construction	$M	14,323	11,288	12,311	12,975	13,983
Value of sewerage projects under planning, design and construction	$M	41,200	49,872	78,749	80,483	72,402
No. of drainage projects under planning, design and construction	No.	22	20	20	17	18
No. of sewerage projects under planning, design and construction	No.	70	77	87	81	73

Sewage Services Operating Accounts

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16¹⁶
Sewage Charge Revenue	$M	703	776	875	955	1,048
Trade Effluent Surcharge Revenue	$M	204	207	221	226	232
Other Revenue	$M	40	40	44	45	47
Overall Revenue	$M	947	1,023	1,141	1,227	1,327
Expenditure (excluding depreciation)	$M	(1,484)	(1,538)	(1,594)	(1,759)	(1,927)
Depreciation	$M	(782)	(801)	(850)	(840)	(1,045)
Overall Expenditure	$M	(2,266)	(2,339)	(2,444)	(2,599)	(2,972)
(Deficit)	$M	(1,319)	(1,316)	(1,303)	(1,372)	(1,645)

(16)	The 2015-16 figures are provisional and subject to endorsement by the Sewage Services Accounts Committee.

Sewage Services Operating Cost Recovery Rate

	Unit	2014-15	2015-16
Revenue of Sewage Charge and Trade Effluent Surcharge	$M	1,182	1,280
Expenditure (excluding depreciation) of Sewage Charge and Trade Effluent Surcharge	$M	1,715	1,881
Operating Cost Recovery Rate	%	68.9	68.0

Note :	The 2015-16 figures are provisional and subject to endorsement by the Sewage Services Accounts Committee.

Sewage Service Charge Consumption and Payment Statistics

	2011-12	2012-13	2013-14	2014-15	2015-16
Number of water accounts (in thousand)	2,800	2,820	2,860	2,881	2,907
Number of water accounts liable to pay sewage charge (in thousand)	2,590	2,610	2,640	2,663	2,689
Number of Accounts - Trade Effluent Surcharge (TES) (in thousand)	21.4	22	23	24	25

Routine Services

Number of Enquiries Received for the Past Five Years

Business Reclassification Applications Handled for the Past Five Years

Number of New TES Accounts Identified for the Past Five Years

Water Consumption of Sewered Accounts ($524 million m3) - Customers Pattern in 2015-16

Domestic Accounts - Sewage Charge Payment Pattern in 2015-16 (HK$/month)

TES Accounts - TES Payment Pattern in 2015-16 (HK$/month)

Sewage Charge (HK$1,048 M) - Revenue Pattern by Type in 2015-16¹⁷

Sewage Charge (HK$1,048 M) - Revenue Pattern by Type in 2015-16 56.1% Domestic, 20.1% Other Non-domestic, 15.2% Restaurants, 4.9% Government, 2.1% Food Manufacturing, 1.4% Laundries, 0.1% Textiles & Wearing Apparel Except Footwear, 0.1% Bleaching & Dyeing

Trade Effluent Surcharge (HK$232 M) - Revenue Pattern by Type in 2015-16¹⁷

Trade Effluent Surcharge (HK$232 M) - Revenue Pattern by Type in 2015-16 90% Restaurants, 8.5% Food Manufacturing, 1.3% Other, 0.1% Bleaching & Dyeing, 0.1% Textiles & Wearing Apparel Except Footwear

Sewage Charge and Trade Effluent Surcharge (HK$1,280 M) - Revenue Pattern by Type in 2015-16¹⁷

Sewage Charge and Trade Effluent Surcharge (HK$1,280 M) - Revenue Pattern by Type in 2015-16: 46.3% Domestic, 16.8% Other Non-domestic, 28.3% Restaurants, 4% Government, 3.2% Food Manufacturing, 1.2% Laundries, 0.1% Textiles & Wearing Apparel Except Footwear, 0.1% Bleaching & Dyeing

(17)	The figures are provisional only and are subject to endorsement by the Sewage Services Accounts Committee.

	Unit	2011-12	2012-13	2013-14	2014-15	2015-16
Flooding Prevention
Total number of flooding blackspots	No.	15	13	11	10	8
Sewage Treatment
Coverage of public sewerage (population percentage)¹⁸	-	93%	93%	93%	93%	93%
Total length of sewerage network	km	1,647	1,683	1,695	1,700	1,700
Total no. of sewage treatment facilities	No.	287	292	293	297	300
Volume of sewage treated	Million m³	981	1,001	1,021	1,011	1,007
By Preliminary Treatment		286	306	303	228	138
By Primary Treatment		4	5	5	5	5
By Chemically Enhanced Primary Treatment (CEPT)		525	525	541	606	690
By Secondary Treatment		166	165	172	172	174
By Tertiary Treatment		0.13	0.2	0.15	0.14	0.14