A policy review  of Dutch aid during 1990 to 2011 to improve drinking water and sanitation services in developing countries found that while millions of peole have gained access, the impact on health and sustainability was limited.
The main focus of the review is on the period from 2004 when aid was directed at supporting the Millennium Development Goal of halving the world’s population without sustainable access to safe drinking water and basic sanitation by 2015.
The review is primarily based on:
- a study of Dutch policy and its execution;
- impact evaluation studies of drinking water and sanitation programmes in Benin , Egypt, Yemen, Mozambique  and Tanzania .
The policy review was supported by a reference group which included Dr. Christine Sijbesma of IRC International Water and Sanitation Centre.