The DISTRILAKE project aims to integrate and coordinate the management of available reservoirs in the Lake Como basin to increase the overall efficiency of the water system and its ability to meet various user needs, especially during periods of water stress. A key part of the project is developing a geo web system with a data model, web services, and client interface to enable collection and sharing of water-related data among project participants and stakeholders. The system will make all relevant data immediately and easily accessible. Setting up metadata standards and catalog services are also important aspects for implementing the geo web system.