Water quantity
Regional water authorities see to the control of the quantities of surface water in a certain area on a daily basis. The management of water quantities aims at reaching and maintaining certain water levels dependent on the function of the body of water in question.
A correct supply and drainage of surface waters prevents surplusses and shortages. The national government maintains the main water infrastructure. Regional water authorities are in charge of water quantities at regional and local levels.
The legal guidelines for the management of water quality are laid down in the Water Act. Additional guidelines are included in several legal documents and regulations.