Vombsjön – ett ramdirektivprojekt / Vombsjön – a Water Framework Directive project
The Vomb lake is centrally located in the south of Sweden and is an important source for drinking water. Sydvatten AB (water company) delivers drinking water to about 300 000 inhabitants. There is an intensive agricultural activity within the catchment area, where nutrients as well as pesticides are being used.
The objective of the project has been to work with characterisation of the catchment area and measures according to the European Water Framework Directive. The project has focused on interests and conflicts affecting the water resource in terms of its use as a source for drinking water.
A model of the catchment area with a GIS interface has been developed, using the MIKE BASIN program. Transport times as well as pesticides, phosphorous and nitrogen loads have been calculated. Calculations have been made for present situation and for a scenario with implemented measures.
Characterization and analysis of a catchment area is the basis for evaluating and suggesting relevant measures. To use a model gives a good overview of the catchment area and makes it possible to evaluate measures. A group of people representing relevant stake holders within the catchment area has participated in the project which has been important for the implementation.