Co-operation over Lake Peipsi demonstrates how integrated water resource management tools can be applied to transboundary waters shared by countries in transition. While the countries are still only at the beginning of a long-term co-operative programme, this initial phase can definitely be considered successful. The aim of promoting the sustainable use of natural resources in the region has been supported at international and national levels according to Integrated Water Resource Management principles. In practice, the transboundary co-operation in the Lake Peipsi Area has developed gradually due to limited resources. However, this may have been preferable to receiving mega-projects implemented by external consultancies when there was no sound institutional framework for co-operation at an intergovernmental level. The most important outcomes of this 10-year period of co-operation in the Lake Peipsi Basin Development have been the establishment of legal aspects and institutionalisation of transboundary co-operation at intergovernmental, regional and subregional levels. Other major expected outcomes of the co-operation were:
- Increased ability of regional authorities, NGOs, universities and schools and environmental experts to communicate across the border.
- Establishment of procedures for environmental data and information exchange between national environmental authorities in the region.
Major challenges to preparing the Basin Management Plan are differences in the Estonian and Russian legislation, disparities in procedures, monitoring strategies, environmental data, information gathering and institutional organisation. There is a need to develop step-by-step guidelines in order to implement integrated water resource management principles. Most of the international assistance projects have been implemented in close co-operation with local experts, which has proved efficient and beneficial to all concerned. It demonstrates that developing co-operative approaches to water management enables the ecologically sustainable use of natural resources while improving the social and economic conditions and quality of life of people in the region. The greatest winners are the environment of the Lake Peipsi/Chudskoe Basin and future generations of people in the area. A network of regional and local authorities, universities, NGOs and businesses is emerging that is a good basis for implementing integrated water resource management principles in the lake basin.