International Office for Water

Developing skills for better water management
in France, in Europe and around the world.

Support & Cooperation

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Training & Skills

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Data & Information Systems

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Networking of water stakeholders

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Welcome to the new OiEau website!

Created in 1991, OiEau is a French association recognized as being of public utility and approved for environmental protection. It covers the small and large water cycles.

It provides its technical, operational, institutional, legal and strategic expertise to all the stakeholders of water, the circular economy and, more generally, the environment, at all levels, from a local authority to national and transboundary policies.

OiEau is active in more than 80 countries worldwide.

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Are you preparing your training plans for 2023?

See all our training courses (only in french)

Last news

Published on 15/12/22
Environmental statistics: an open access platform
Published on 29/11/22
OiEau is looking for new talents!
Published on 18/11/22
Digitalisation of the water sector: the successful results of the Fiware4water project
Published on 17/11/22
19 November - World toilet day 2022 - Making the invisible visible
Published on 01/12/22
Drinking water production: a new educational pilot!
Published on 08/11/22
Discover OiEau in video (2'18)
Published on 29/11/22
OiEau is looking for new talents!
Published on 14/10/22
Webconference "Financing your ecological actions in wetlands" on 21 November 2022
Published on 12/10/22
A new intervention country for OiEau: Malawi
Published on 09/10/22
REUSE in Industry: an atypical bridge between Wastewater and Process Water
Published on 21/04/22
"Fiware4water" : an innovative digital solution for water management
Since 2019, OiEau has been coordinating the European project "Fiware4water", whose ambition is to create an open collaborative digital platform to simplify data exchanges between the various water stakeholders. On the occasion of the World Creativity and Innovation Day, Sonia Siauve, Innovation project manager at OiEau and specialist in the digitalisation of the water sector, answered our questions.
Published on 01/12/22
Tribute to Pierre-Frédéric Ténière Buchot
See all our news

Save the date!

The Little Streams: episode 3
from Mon 11/21/22 to Mon 12/19/22
Webconference "Financing your ecological actions in wetlands"
Mon 11/21/22
2pm to 5pm
2023 UN Conference: Water, a cross- sectoral issue
from Wed 03/22/23 to Fri 03/24/23
In person

Discover our current projects

CARIBSAN - Inter-Caribbean cooperation for the valorisation of Planted Filters for wastewater treatment
AMERICA - France, Dominican Republic, Cuba, Santa - Lucia
May 2020
European Union, French Development Agency, Martinique Water Office, Guadeloupe Water Office.
Discover the project
EUWI+ East: Support for reforms to the water sector in countries neighbouring the European Union
EUROPA - Armenia, Azerbaijan, Belarus, Georgia, Moldova, Ukraine
April 2016
European Commission
Discover the project
Supporting integrated water resources management implementation - Nakanbe basin
ÁFRICA - Burkina Faso - Nakanbé Basin
January 2012
Nakanbé Water Agency (AEN)
Discover the project
AMERICA - Brazil, Suriname, France - The Maroni and Oyapock catchment basins
July 2019
Guyana Water Office, DEAL, CNES, CTG
Discover the project