On December 8, 2025, Waternet and the ROK partners (Arcadis/IV, HaskoningDHV, Helder! (Ramboll, IA Groep B.V., Aveco de Bondt, Dutch Process Innovators), Sweco, Witteveen+Bos/Bilfinger) signed the Framework Agreement for Engineering Services for Drinking Water (ROK-ID DW 2024–2032). This marks an important step in how we will work together in the coming years to expand and maintain Waternet’s drinking water supply.
We are proud to partner with Witteveen+Bos over the next eight years to deliver projects within the drinking water chain for Waternet.
What is the ROK-ID DW?
The ROK-ID DW is a multi-year collaboration agreement between Waternet and selected engineering firms, including Bilfinger, for providing engineering services within the drinking water chain. The goals of this collaboration are:
- Deliver renovation and new-build projects smarter, faster, and more predictably.
- Increase production capacity through better control of programming and effective collaboration.
- Accelerate professionalization and innovation through, among other things, SE standardization, BIM/3D, and digitalization.
- Lay a solid foundation for a robust drinking water supply beyond 2032.
What makes this collaboration special?
- Joint control over programming: guided by Waternet’s Multi-Year Investment Program (MIP), but flexible when needed.
- Best for Waternet: openness, trust, and space for difficult conversations.
- Partners in their strength: leveraging differences for quality, safety, and reliability.
- Standardization and digitalization as tools for professionalization and efficiency.
- Continuous learning: applying acquired knowledge immediately through a strong PDCA (plan-do-check-act) cycle.
The challenge is significant—greater than what organizations can handle individually. That’s why this collaborative approach, centered on coordination, transparency, and trust, was chosen.
With this Framework Agreement, we are taking a joint step toward a future-proof drinking water supply—for today and for generations to come.
Read more about our service Bilfinger Water Solution by clicking here.