Accessing the Site

Layout of the site

Plurality of Styles

The layout of this site is based on a number of style sheets, to consult the site in various different presentation styles:

  • a graphic presentation, using the Veolia Water colors;
  • a light, less visual presentation intended in particular for visually impaired persons and persons using a mobile apparatus like a PDA or a cellular phone.

These presentations are accessible:

  • from the Affichage (Display) menu of the browsers supporting the alternative styles;
  • from the "Version allégée" (Light version) or "Version graphique" (Graphic version) link displayed at the top of each page.

Font Size

Users can modify the presentation of this website, and particularly the font size, as the layout is based on relative units (em and percentages), rather than absolutes (pixels) (priority 2).

To modify the font size:

  • Ctrl + mouse scroll wheel
  • or "Affichage / Taille du texte" (Display / text size) menu

W3C Standards

The XHTML code of the site complies with XHTML 1.0 Specification. It is tested by means of the W3C HTML validation application

The CSS code complies with Specification CSS2. It is tested by means of the W3C CSS validation application (validateur CSS du W3C).

The pages on the site are in compliance with the directives for accessibility to the Web contents (Directives pour l'accessibilité aux contenus Web). They are tested by means of the Bobby and Wave validation application.


Navigation and Links

  • the map of the site is accessible via a link provided at the bottom of each page.
  • the search engine is accessible from each page.
  • the links to the major sections of the site are provided on each page.

Short cut links

The light version of the site offers a number of links for quick and direct access to:

  • the content of the page;
  • the general navigation menu (level 1);
  • the navigation menu inside any given section

Tabular Navigation

It is possible to browse through the site using the sole keyboard: the Tab key can be used to move from one link to another. Use the Enter key to validate.

A title is allocated to each link, to describe the link in detail, unless the text of the link gives a complete description of the target. To view the title, position the cursor or any other pointing device on the link text.


The time needed to download the site pages is reduced as much as possible.

However, to ensure optimum comfort of use, in particular when downloading certain documents, the consultation of the multimedia animations and the videos on the site, we recommend a high bandwith Internet connection