Transcript MEDSTAT II  Euro-Mediterranean Statistical Co-operation Joint MEDSTAT II / UN-ESCWA Training course on Cécile Roddier-Quefelec Water accounts Implementation of SEEAW The experience of Tunisia Amman, 10-13 March 2008 This.

MEDSTAT II
 Euro-Mediterranean Statistical Co-operation
Joint MEDSTAT II /
UN-ESCWA Training
course on
Cécile Roddier-Quefelec
Water accounts
Implementation of SEEAW
The experience of Tunisia
Amman, 10-13 March 2008
This project is funded by the European Union
This project is funded by the European Union

TUNISIA : water issue
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Semi-arid country
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High variability of the water resources in time and space
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56% surface water (in the North)
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High losses during distribution
Low water resources (less than 450 m3/inh/year , expected
to be 350 m3/inh/year in 2030)
 Less than 50 mm in the extreme south
 More than 1500 mm in the extreme north-west
44% ground water (of which 15% are non-renewable water
resources) (in the south)
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Tunisian situation
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Water law
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Good availability of water data
Different water price (Social to high consumers)
Integrated water resource management
Development of a national water information system
(SINEAU)
Lack of data on
 Return water
 Water consumption for irrigation
 Soil water
 DBO per activity branch
 Cost of water per activity branch
 Expenditures and investment for water distribution and
treatment
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Tunisian situation : development path
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Water accounts includes in the 2008/2009 National Statistical Plan
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Training course on SEEAW, Tunis, October 2007
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Technical assistance mission, December 2007
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National Statistical Office initiated first work in December 07 and
started to populate an adapted PSUT
 Meeting between INS and Water Resources General Directorate:
objective to sign a cooperation protocol
 Need to mobilise numerous actors: INS, DGRE, DGBTH, SONEDE,

ONAS, DGGR, DGDA, SECADENORD, ANPE, DGACTA, INAT
Propose to create a national committee for water statistics and
accounts , to be included in National statistical Committee :
presentation of the draft tables, discussions and setting-up work
programme and sharing of responsibilities
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Tunisia : implantation plan
First phase
 Physical Supply and Use Tables
 Assets and hybrid accounts (monetary part may be difficult,
actualisation methods)
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Second phase develop
 Emissions accounts
 Flow of Water (complementary)
 Quality accounts (degree of salinity)
 Expenditures accounts may be envisaged as well
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Physical use table (not complete)
37
38,39,
dont :tourisme
Total
45-99
Depuis l'environnement
1.
Total
des
prélévements
(=1.a+1.b=1.i+1.ii)
1.a. Prélèvement pour autoapprovisionnement
1.b.
Prélèvement
pour
distribution
1.i. A partir des ressources en
eau
1.i.1 Eaux de surface
994,0
409,2
994,0
55,0
240,0
11,0
1,1
39,3
5,0
11,0
408,2
240,0
1.i.2 Eaux souterraines
219,2
59,8
169,9
?
renouvelables
non renouvelables
1.i.3 Eau du sol
?
1.ii. A partir d'autres sources
20,1
1.ii.1 Collecte des eaux de pluie
Au sein de l'economie
Total
36 SONEDE 36 autres
monde
10-33, 41-43 35
Reste
5-8
Ménages
Activités (selon les catégories CITI)
1-3
3
du
Millions m
1.ii.2 Prélèvements d'eau de
mer
2. Emplois
d'eau recue
?
646,2
72,7
d'autres unites economiques
eau potable
eau d'irrigation
eau réutilisée
621,0
0,0
0,0
0,0
193,0
71,0
26,0
31,7
57,3
41,0
10,0
25,2
789,9
216,7
16,0
89,0
216,7
10,0
672,0
3,7
0,0
977,7
305,7
672,0
28,9
193,0
eau usée
3. Total des emplois d'eau (=1 + 2)
1640,2
72,7
0,0
0,0
409,2
0,0
193,0
71,0
26,0
789,9
227,7
0,0
977,7
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Physical supply table (not complete)
36 SONEDE 36 autres
37
38,39,
dont :tourisme
Total
Vers l'environnement
Au sein de l'economie
45-99
4. Ressources d'eau fournies
aux
autres
unités
économiques
dont:
309,2
4c.eau potable
28,9
305,7
4d.eau d'irrigation
240,0
3,5
428,5
4.a. Eaux recyclées
4.b. Eaux usées au réseau
d'égouts
5. Total des retours (=5.a+5.b)
Total
10-33, 41-43 35
monde
5-8
Reste
1-3
Ménages
Activités (selon les catégories CITI)
du
Millions m3
28,9
40,0
14,1
63,5
5.a. Vers les ressources d'eau
?
54,1
125,1
179,3
150,4
57,9
5.a.1. Eaux de surface
5.a.2. Eaux souterraines
57,9
renouvelables
non renouvelables
5.a.3. Eau du sol
5.b. Vers d'autre sources (ex.
mer)
6.Total des ressources en eau (=4+5)
4,4
7. Consumption (=3-6)
5,6
150,4
372,7
179,3
36,5
1,6
3,5
31,3
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Example of water circuit (households)
Eau de
pluie
(Consommation)
Eau potable
SONEDE
Ménages raccordés
SONEDE et ONAS
Ruissellement
urbain
Assainissement
autonome
aquifère
aquifère
oueds
ou mer
(Consommation)
Ménages
non
raccordés
SONEDE
Pas de
traitement
Pas de
traitement
réutilisation
Puits
(Consommation)
Ménages
raccordés
SONEDE mais
non ONAS
STEP ONAS
Eau de
source
Pas de
traitement
eau du
sol
eau du
sol
oueds
ou mer
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Tunisia : conclusion
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Lot of data available
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Compilation of data allowed to identify quality problems in
the available water statistics (revision of the JQ data)
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New data collection to be organised by INS at the partners
(up-date and clarifications of production methods)
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Calculation methodology may be a problem
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Institutional framework for environment statistics and
accounts need to be clarified
 Environment statistics being not legally part of the NSI’s
tasks, but no other national institution has received this
assignment
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Thank you
Contact
Cécile Roddier-Quefelec
MEDSTAT II Environment key expert
[email protected]
Tel: +33 4 92 38 71 35
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