Legal notice

The information on this site is subject to a disclaimer, a copyright notice and rules related to personal data protection.


Optain has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 862756 (2020-2025).

The International Office for Water maintains this website to enhance public access to information. Our goal is to keep this information timely and accurate. If errors are brought to our attention, we will try to correct them. 
However, the International Office for Water accepts no responsibility or liability whatsoever with regard to the information on this site.

This information is:

  • Of a general nature only and is not intended to address the specific circumstances of any particular individual or entity.
  • Not necessarily comprehensive, complete, accurate or up to date
  • Sometimes linked to external site over which International Office for Water has no control and for which International Office for Water assumes no responsibility.

  • Not professional or legal advice (if you need specific advice, you should always consult a suitably qualified professional).

It is our goal to minimize disruption caused by technical errors. However, some data or information on our site may have been created or structured in files or formats that are not error-free and we cannot guarantee that our service will not be interrupted or otherwise affected by such problems. International Office for Water accepts no responsibility with regard to such problems incurred as a result of using this site or any linked to external sites.

This disclaimer is not intended to limit the liability of International Office for Water in contravention of any requirements laid down in applicable national law nor to exclude its liability for matters which may not be excluded under that law.

Copyright notice

All the website is subject to French and international laws on Copyright and Intellectual Property Rights.

© Optain 2020-2025

This website is the property of Optain, lead and coordinated by HELMHOLTZ-ZENTRUM FUR UMWELTFORSCHUNG GMBH - UFZ (UFZ), established in PERMOSERSTRASSE 15, LEIPZIG 04318, Germany


project coordinator: 


The general reproduction structure of texts, animated images or otherwise and any other component of the Website are the sole property of the Optain project. Any total or partial representation of this Website by any process whatsoever without the express authorization of the Optain project is forbidden and shall constitute unauthorized reproduction penalized by articles L.335-2 et seq. of the Code of intellectual property under French law.

All of the rights of reproduction are reserved, including downloadable documents (logos, photos, catalogues, booklets, brochures, and any type of information whatsoever...). Downloadable documents are also protected by copyright.

Similarly, databases appearing on the Website, which is protected by the provisions of the Intellectual Property Code concerning incorporation of the European directive of March 11, 1996 regarding the legal protection of databases produced by the Optain project.

The reuse is subject to the reuse policy of the European Commission implemented by a Decision of 12 December 2011.


Personal data protection

As user, you are informed, in accordance with French law of January 6. 1978 and its article 27 on the protection of data, files and civil liberties, that any optional data you may choose to provide when completing the forms located on the Website allowing us to respond to your request, are solely intended for the Optain project, which is responsible for the processing of the data, for administrative and business management purposes.

The IOWater has a privacy policy. You are informed that you have a right to oppose, access, portability, rectification or delete all personal data regarding you by writing to the International Office for Water - 15 rue E. Chamberland - 87065 Limoges Cedex – France -  

The Optain project is committed to European Union policy on user privacy and particularly the General Data Protection Regulation (Regulation 2016/679).

Although you can browse through most of the current website without giving any information about yourself, in some cases, personal information is required. Such information will be treated it according to the policy described in the Regulation mentioned above and the specific objective described on the website form, focusing mainly on providing interactive communication services and possibilities for a registered user to contribute to the project.

How do we treat your personal data?

When you subscribe to the newsletter, you agree to your personal data being stored for the duration of the project (4 years) in order to send you newsletters and flashnews about the project, and also for statistical purposes (tracking of the number of subscriptions, etc.)

When using the "Contact us" button, you activate a specific form that invites you to send your comments to a specific functional mailbox. When you send such a message, you agree to your personal data being stored for the duration of the project (4 years)  so that the Optain project team can answer your request. If the management team of the mailbox is unable to answer your question, it will forward your e-mail to another expert. You will be informed, via e-mail, about which expert your question has been forwarded to. 

 If you have any questions about the processing of your e-mail and related personal data, do not hesitate to include them in your message.


Information on the audience measurement service:

To serve you better, we measure the number of page views, the number of visits, in addition to the activity of visitors on our website and their return frequency. To achieve this, we use Google analytics system. If you do not want to be audited, you can modify your parameters and read confidentiality rules

Creation, development, hosting and management of the website

International Office for Water (OIEau) for Optain project