Transcript Public water supply 7th JTF on Environmental Indicators Milijana Ćeranić Geneva on 5 - 7 November 2013

Public water supply
7th JTF on Environmental Indicators
Milijana Ćeranić
Geneva on 5 - 7 November 2013
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NATIONAL COOPERATION
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INTERNATIONAL COOPERATION
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SURVEY ON DRINKING WATER SUPPLY
• LEGAL BASIS
– Survey on drinking water supply is conducted on the
basis of the Law on Official Statistics („Official Gazette
of RS“, No 104/2009).
• МETHODOLOGICAL BASIS
– This survey is aimed at collecting the data on drinking
water supply. The provided data enable the users:
review the situation in water abstraction, processing
and distribution to end consumers; realize the state of
the water network and data on costs of production of
drinking water; plan the policy for conservation and
protection of water resources; report in compliance
with the requests of international institutions and
conventions.
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Survey on drinking water supply provides data
which are classified into three topics:
• Water abstraction, overtaken water from other
networks and water provided to other systems;
• Water distributed to users: sold water (to households,
business entities dealing with the sections of
Agriculture, forestry and fishing, Mining and quarrying,
Manufacturing and Electricity, gas, steam and air
conditioning supply, Water supply; sewerage, waste
management and remediation activities, as well as to
other consumers, water used for own consumption,
and total water loss;
• Data on water treatment, water supply network and
costs of drinking water production.
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Reporting units, statistical units
• Data on water use in settlements are collected from all
business entities that collect, distribute water and/or
manage the systems for water use. Activity of these
reporting units is, according to the Classification of
Activities, defined in the division 36 – water collection,
treatment and supply and division 84 – Public
administration and defence, compulsory social security
(local communities’ authorities managing water supply
systems).
Survey coverage
• The survey covers all business entities that perform their
activity on the entire territory of the Republic of Serbia.
Starting from 1999 the Statistical Office of the Republic of
Serbia has not at disposal and may not provide available
certain data relative to AP Kosovo and Metohija and
therefore these data are not included in the coverage for
the Republic of Serbia (total).
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Method, time and sources for data collection
• Data collection is done by the reporting method,
meaning that the reporting unit uses its available
documentation and records to fill in the
questionnaires. The competent person enters
the requested data in the first quarter of the
current year for the previous year. If related
records are non-existent for certain data,
competent persons will make an evaluation. The
reporting unit forwards the questionnaire to the
relevant statistical authority on which territory its
head office is located within the deadline set up
in the annual plan.
Obligation to protect individual data
• Results of the survey are published as
aggregates, taking into account the obligation to
protect individual data according to the Law on
Official Statistics.
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List and definitions of main items – indicators
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Public water supply is a system for drinking water supply, having arranged
and protected source, abstraction, reservoir and water network and
presents a set of connected hydro-technical components under singular
management and control, used for water abstraction, collection, treatment
and distribution to consumers.
•
Water abstraction (sources) refers to all the places of public underground
or surface waters from which water supply systems are supplied
(underground, surface waters, spring waters, watercourses, accumulations
and lakes).
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Distributed water relates to all directly abstracted and supplied water
distributed by the water supply system during the reference year to its
consumers. The quantities of distributed water are measured by water
gauge or, where they are not available, quantities are calculated according
to norms relative to a selected activity group.
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Drinking water is water used for drinking, processing and production of
food and general use items, as well as for other people’s needs. Water used
or intended for drinking must not contain elements harmful for human’s
health above the determined limits and regarding physical, chemical,
biological, bacteriological, virological and radiological features, it has to
satisfy the established conditions.
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Level of data representativeness (territorial, CA)
• The data are representative for the territory of the
Republic of Serbia, to the level of municipalities,
as well as by river basins.
Harmonization with international
recommendations, standards and practice
• The methodology relative to this survey is partly
harmonized with international recommendations
and standards:
• Water Framework Directive, WFD - 2000/60/EC;
• JQ OECD/Eurostat – Inland water;
• Questionnaire REQ12 – Regional Environmental Data
Collection - Inland water;
• JQ UNSD/UNEP – Environmental Statistics.
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DESCRIPTION OF THE SURVEY
MANAGEMENT
Bodies in charge of the survey management
• Preparations and conduction of this survey involves:
• Statistical Office of the Republic of Serbia: Group for
Environmental Statistics in Belgrade, Division for statistical
affairs in the Statistical Department of AP Vojvodina and
regional offices in Zrenjanin, Novi Sad, Sremska Mitrovica,
Pančevo, Subotica, Šabac, Zaječar, Leskovac, Kraljevo, Niš,
Valjevo, Smederevo, Užice and Kragujevac.
• Institute for Informatics and Statistics of the city of Belgrade
Obligation to provide data
• The obligation to provide data is laid down in Article 26
and the penalty provisions relative to the refusal of
providing data or providing incomplete and false data in
Article 52 of the Law on Official Statistics (“Official Gazette
of RS”, No 104/2009).
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Timetable of the main phases of conducting the
survey
• Activities of the Survey on drinking water supply
are realized according to the Annual Plan of
Official Statistics, adopted by the Government of
the Republic of Serbia.
• Distribution of the questionnaires to regional
organizational units, Statistical Department of AP
Vojvodina and Institute for Informatics and Statistics of
the city of Belgrade, (28.02)
• Delivery of inputted and controlled material, (19.04), for
Vojvodina (26.04)
• Logical and computer control, (30.04)
• Preliminary data, (03.06)
• Final data, (01.09)
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SURVEY TOOLS
Questionnaire and instructions for filling the
questionnaire
• For conducting the survey on drinking water supply, used is
the Questionnaire “Annual survey on drinking water supply,
(VOD – 2v)”, with the instructions for completing it.
• Electronic form of the questionnaire with the instructions is
also available on SORS website: www.stat.gov.rs
List of nomenclatures and classifications used in the
survey
• Code list of watercourses
• Classification of Activities (CA – 2010, “Official Gazette of RS”,
No 54/10)
• Regulation on Nomenclature of Statistical territorial Units
(“Official Gazette of RS”, No 109/09 and 46/10).
All documents are available on SORS website:
www.stat.gov.rs.
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Abstracted water, by source, 2012
9%
22%
Underground and spring w aters
Watercourses
Accumulations and lakes
69%
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Distributed water and losses, 2010-2012
Mill. m3
350
300
Water distributed to
households
250
200
Water distributed to industrial
sector
150
Water distributed to other
users
100
Water losses
50
0
2010
2011
2012
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Water Balance, 2012
Losses %
Distributed water
%
Wastewater %
Serbia
33
67
65
North
27
73
70
Belgrade
Area
34
66
65
Vojvodina
18
82
78
South
Šumadija and
West
Serbia
South and Ist
Serbia
40
60
58
39
61
59
41
59
57
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Distributed drinking water – and losses
by Regions in %, 2012
%
80
70
60
50
40
Serbia
30
South
North
20
10
0
Distributed water / Water
supply
Losses
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Daily water consumption per capita, 2008-2012
Daily water
consumption,
Lit/day
2008
2009
2010
2011
2012
157
149
147
141
138
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List of publications
• The survey results and the relevant
methodology are published:
• Statistical Yearbook
• Statistical Pocketbook
• Eco-bulletin
• Statistical Release ZS30 – Drinking water supply
• Website: www.stat.gov.rs
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SORS publications, www.stat.gov.rs
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Statistical Office of the Republic of Serbia
Thank you for your attention!!!
Milijana Ćeranić
Environmental statistics unit
[email protected]
Geneve
5-7 November 2013.
www.stat.gov.rs
[email protected]
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