case study : meuse river basin jan joziasse deltares

Final Conference June 24 - 25 Maastricht, The Netherlands

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Case Study : Meuse River Basin

Jan JoziasseDeltares

Sacha de Rijk (KWR)Ruud Baartmans (TNO)Willy van Tongeren (TNO)

Final Conference June 24 - 25 Maastricht, The Netherlands

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Introduction case study: Dutch Meuse

Internal discussions

System approach required for decision support How to deal with historic pollution and other types of diffuse

pollution

Visits to water boards and RWS

Point sources largely eliminated Lack of focus on chemical status Measures should be taken on national or EU policy level

Final Conference June 24 - 25 Maastricht, The Netherlands

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Case approach followed

Additional interviews

- Water boards- Rijkwaterstaat Waterdienst- Ministry of VROM- WFD project office- CSN- RIWA Maas

Results evaluated in inquiry

Final Conference June 24 - 25 Maastricht, The Netherlands

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Meuse River Basin Length: 905 km; h: 384 m From Pouilly-en-Bassigny (Fr)

through the Ardennes (Be) to the North Sea (NL)

Catchment area: 35,000 km2 Population: 8.8 million Rain river; large differences

between summer and winter discharge (< 10 – 3,000 m3/s)

Source of water for drinking water production, agriculture, industry

Important for navigation

Final Conference June 24 - 25 Maastricht, The Netherlands

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Specific challenges

• International river basin: five countries/six regions(FR, LU, WL, FL, GE, NL)

• Fear to get “punished” by the EU when the ambition level is set too high

Final Conference June 24 - 25 Maastricht, The Netherlands

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Lessons learned from case study (1)

Focus on diffuse emissions reduction

e.g. cadmium, PAH,

pesticides, fertilizers, pharmaceuticals,

...

Source: RIVM Report 607633001 / 2008

Final Conference June 24 - 25 Maastricht, The Netherlands

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Delay for achieving good chemical status expected until 2015, 2027, or later...

reconsider WFD demands / EQS adjust ambition level

(take more /other measures) effect of measures?

Lessons learned from case study (2)20

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2010

2020

2030

2040

2050

EQSSce 1

Sce 20

20

40

60

80

100

EQS

Sce 1

Sce 2

Final Conference June 24 - 25 Maastricht, The Netherlands

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Lessons learned from case study (3)

Translocationneeds more attention

main river systems brook systems

Final Conference June 24 - 25 Maastricht, The Netherlands

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Lessons learned from case study (4)

Growing importance of emerging substances

look beyond WFD demands pay attention to extreme conditions

(floods, calamities)