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Centro de Estudios Hidrográficos (http://www.cedex.es)

OVERVIEW OF QUANTITY AND QUALITY WATER OVERVIEW OF QUANTITY AND QUALITY WATER

MANAGEMENT IN SPAINMANAGEMENT IN SPAIN

Ángel García CantónHead of Hydrological Planning and Studies DepartmentCEDEXSPAIN


)

UNESCO moisture index ( EUROSTAT)

0

100

200

300

400

500

600

700

800

900

1000

1940 1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995

mm

NATURAL CONDITIONS CONCERNINIG WATER RESOURCES

A singular case in the European context

Irregularity

Time

SpaceAverage annual natural runoff

109,000 hm3

Year

Pre

cip

ita

tio

n


Superficial

Groundwater

Both

24,500 hm3

TOTAL WATER DEMAND

Demand for urban supply (mm/year)

Demand for irrigation

Industrial demand (mm/year)

Total water demand (mm/year)

Urban, industrial & agricultural demand

5,000 hm3

6,500 hm3

36,000 hm3


Total demand (mm/year)

Water shortage (mm/year)

Water surplus (mm/year)

Total resource (mm/year)

WATER BALANCE

- +

Measures are necessary


Natural regulation

Current regulation

Average natur reg. Average current reg.

INCREASING AVAILABLE RESOURCES THROUGH DAM REGULATION

% N

atu

ral c

um

ula

tive

flow

River basin name


DAM CONSTRUCTION DEVELOPMENT IN SPAIN

Nu

m d

ams

Year

NumberStorage

Cu

mu

lati

ve s

tora

ge

Storage Cost (2006)


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Gal

icia

Cos

ta

Nor

te I

Nor

te II

Nor

te II

I

Due

ro

Tajo

Gua

dian

a I

Gua

dian

a II

Gua

dalq

uivi

r

Sur

Segu

ra

Júca

r

Ebro

C.I.

Cat

aluñ

a

<50 Mala

65-50 Deficiente

75-65 Regular

85-75 Buena

100-85 Excelente

WATER QUALITY STATUS BY THE 1990’S

Mean general quality index

Measures continue to be

necessary41%

48%

58%67%

77%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

1995 1998 2000 2002 2005

Compliant

Under construction

Not compliant

Inhabitants equivalent


)

INTEGRATED APPROACH: RIVER BASIN MANAGEMENT PLANS FIRST RIVER BASIN MANAGEMENT PLANS IN 1998:

Integrated approach quantity and quality (essentially from a chemical point of view)

NEW RIVER BASIN MANAGEMENT PLANS TO BE FINISHED BY THE END 2009 (WATER FRAMEWORK DIRECTIVE)

Integrated approach quantity and quality from an ecological point of view

Environmental requirements represent previous conditions to water resources systems

Meet environmental objectives for water

bodies

Satisfy water demands

Measures are taken to


WASTE WATER REUSE

Reclamation treatments

Total cost €/m3

Without desalination stage

0.07 – 0.34

With desalination stage

0.47 – 0.85

2009

368 Hm3/year

2015

836 Hm3/year

Next planning cycle

1,030 Hm3/year

NON CONVENTIONAL RESOURCES

DESALINATION Planned measures in Mediterranean coast to increase production to get 900 hm3/year

IRRIGATION SYSTEMS IMPROVEMENTEfficiency increase in irrigation (up to 2008):

acts on 570,000 ha foreseen water volume to be saved: 1,400 hm3/yearinvestment cost: 1,500 Million €

A new plan to start in 2010 is in preparation


IMPROVEMENT OF FLUVIAL SYSTEMS

NATIONAL STRATEGY FOR RIVER RESTORATION

• Restoration of aquatic and riparian ecosystems

• Reduction of floodplains fragmentation

• Reduction of river fragmentation

WATER QUALITY NATIONAL PLAN: 2007-2015


Secondary treatments in all agglomerations > 2,000 p.e. in inland waters and estuaries and > 10,000 p.e. in coastal waters, where it is not installed yet (77% p.e. compliant in 2005).

Appropriate treatments in agglomerations < 2,000 p.e. in inland waters and estuaries and < 10,000 p.e. in coastal waters.

Stringent treatment in agglomerations > 10,000 p.e in sensitive areas, including latest declared sensitive areas (84% p.e. compliant in 2005).

Collecting systems and devices for the limitation of pollution of receiving waters due to storm water overflows (stormwater tanks).

Improvement in R&D about biodiversity and water quality

WATER QUALITY NATIONAL PLAN: 2007-2015Main objectives

19,372 million €


DROUGHT MANAGEMENT PLANS FOR EACH RIVER

BASIN (finished 2006)

CLIMATE CHANGES STUDIES

•Impact on natural water resources (provisional assesments used in river basin managment plans)

•Impact on water demands

•Impact on water ecosystems

•Impact on water resources availability


THANK YOU VERY MUCH FOR YOUR ATTENTION

centro de estudios hidrográficos () overview of quantity and quality water management in spain...

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