The 2030 Agenda for Sustainable Development includes a dedicated goal on water and sanitation (SDG 6) that sets out to ‘ensure availability and sustainable management of water and sanitation for all’. The indicators under target 6.4 comprise SDG 6.4.1 – change in water use efficiency over time and SDG 6.4.2 – Level of water stress. This memo shows the results of a limited project conducted by Statistics Netherlands (CBS), Deltares and eLEAF to show what can be compiled for the indicators under SDG 6.4 for the Netherlands and what could be compiled to support other countries in the process of monitoring the 6.4 SDGs.