Grand Paris Sud: when GIS becomes a strategic lever for water management
Grand Paris Sud: when GIS becomes a strategic lever for water management
Published October 01, 2025
Water and wastewater management is a major challenge for large local authorities. Complex networks, multiple regulations, pressing environmental issues... all parameters that require powerful, adapted digital tools. It is in this context that the Communauté d'Agglomération Grand Paris Sud chose GEO Solutions from Ciril GROUP, to modernize its geographic information system (GIS) and strengthen the management of its water policy.
Major environmental and organizational challenges
With more than 360,000 inhabitants spread over 23 communes and two départements, Grand Paris Sud faces a twofold challenge:
ensure sustainable public governance of the water cycle,
manage a complex organization, with over 1,200 km of drinking water networks and 1,700 km of wastewater networks.
Guaranteeing water quality, preserving the natural environment and optimizing costs: these objectives called for a high-performance GIS solution, capable of federating business activities and providing day-to-day support for agents.
GEO, a transformation gas pedal
The choice of GEO Solutions from Ciril GROUP was the right choice for several reasons:
flexible parameterization to adapt tools to business needs,
strong interoperability with the company's other software applications,
an intuitive, field-friendly interface, making it easy for agents to get to grips with the system,
continuous scalability, thanks to the GEO Generatorwhich enables applications to be adjusted and enriched as projects progress.
Grand Paris Sud's GIS teams have thus been able to effectively support the transfer of all wastewater assets to the public sector, while gradually consolidating the management of drinking water.
With GEO Eau Potable and GEO Assainissement Collectif, Grand Paris Sud has acquired business tools capable of federating its services, centralizing asset and operational data, and facilitating decision-making.
The impact is tangible: time savings, cost reductions, improved responsiveness and enhanced coordination between departments.
Read the full story
This case study illustrates how a large-scale region can use reliable technologies to transform an organizational and environmental challenge into a lever for innovation and performance .
A lasting partnership with Ciril GROUP
Grand Paris Sud chose Ciril GROUP for the flexibility and scalability of its solutions. Thanks to the GEO Generator, the business modules are constantly adapted to the specific needs of the local authority, guaranteeing long-term consistency and agility.


Ciril GROUP accelerates its development

Ciril GROUP accelerates its development



