alma – the software for long-term management of the register of contaminated sites
alma provides cantons and federal offices with modern open-source software for managing the register of contaminated sites (KbS) efficiently, securely, and sustainably.
Complex requirements for the KbS
The Federal Act on Environmental Protection requires Swiss cantons and federal agencies to create a publicly accessible register of contaminated sites (KbS). geOps has been developing software for the creation and management of the KbS in Switzerland for over 20 years. Since 2011, Altlast4Web has been the standard for managing the KbS. Since 2025, alma has been a modern software solution that supports all tasks in this area.
More than just site management
alma combines data management, geodata processing, and process control in one system. Site perimeters can be digitized and mapped directly. At the same time, alma supports individual business processes from assessment to remediation and links them closely to the site data. Automated reports, interfaces to geoportals and ÖREB, and high security standards round off the solution.
Jointly developed, openly accessible
alma is open source and was jointly financed and developed by around 20 cantons, federal offices, and the Principality of Liechtenstein. This reduces costs, creates synergies, and ensures sustainable further development. For administrations, this means digital sovereignty and long-term investment security.
Efficient, transparent, and sustainable
alma provides the relevant authorities with a future-proof tool and clear advantages:
- Efficiency through automation and integrated geodata processing
- Transparency through open standards and traceable processes
- Sustainability through collaborative development and open source
Looking ahead: continuing to develop together
With alma, cantons and federal offices have created a strong foundation for managing contaminated sites. The open-source solution continues to grow steadily. New functions, interfaces, and automation are developed in collaboration with users. This ensures that alma not only remains technologically up to date, but also develops step by step into a comprehensive tool for even more efficient, transparent, and sustainable environmental management.
More information
Further information on using the alma software and the community of public authorities and geOps can be found at alma-os.ch.
