DWHH / GAA has been working in Indonesia to support the population affected by the crisis in East Timor between 1999 and 2002. Since then, the organisation was no longer active in Indonesia and started its activities in Sumatra only with the tsunami relief intervention in December 2004. As a result, DWHH / GAA did not have an own structure at its disposal and also did not have the necessary expertise concerning water supply in Indonesia when the decision was made to plan and implement this project. Only the technical expert employed in May had the required expertise, but not with respect to the drilling of tube wells. Parallel to the planning of the project, the structure of DWHH / GAA had to be set up and people had to be employed in Medan and the district offices. This in itself was a challenging task and required considerable resources, which were thus extremely limited. For the tsunami intervention and the planning of new projects in general, it would have been mandatory to have key-sector expertise available. In summary, it can be said that the rather limited resources available for the project planning and start-up resulted in a considerable working pressure right from the beginning and may have been an additional reason for the delay of the planned work.