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Understand Vitens’ drinking-water system through a connected account of groundwater resources, treatment assets, services, financial context, institutions and compatible historical change.

Amsterdam's drinking water comes from two source systems outside the city and is now run by an organisation that separated from the regional water authority on 1 January 2026. Waternet produced 95 million m³ in 2024 and its plans put required capacity at 107 million m³ a year by 2030, while the city's EUR 1.04 billion climate-adaptation need remains unfunded.

Amsterdam's water investment is led by the regional water authority, which plans EUR 160.8 million of investment in 2026, about 2.3 times its recent annual delivery, with RWZI Amsterdam-West at the centre. Waternet is procuring a EUR 54 million slow sand filter at Weesperkarspel, adding 6 million m³ a year from 2031, while post-2030 sources and the city's EUR 1.04 billion climate-adaptation need are not yet in any adopted budget.

Amsterdam's drinking water supply is reliable day to day but tight on capacity: Waternet's regular capacity of 95 million m³ a year must reach 107 million by 2030 and, on the 2023 forecast, 122 million by 2050 (the 2024 update adds about 4 million m³ a year after 2030). Two measures due before 2030 add 10 million m³ a year against a 14 million need, with a further 6 million expected in 2031, and the named sources after 2030 add about 30 million m³ a year against a further 15 to 19 million needed, each with permit or intake conditions.

This report evaluates how Vitens is transforming drinking-water production, distribution, source security, treatment capability, and investment delivery within a complex Dutch governance environment.

This report evaluates how Vitens manages public utility governance, groundwater security, treatment resilience, network renewal, digital operations, demand management, and long-term capital delivery.