Map Viewing Service (WMS) of the dataset: Cantal River Quality Objectives

Quality objectives remain the tool for evaluating actions taken to regain watercourse quality. They are used on a day-to-day basis in all water-related matters.The scheme will evolve soon, or has evolved, with the implementation of the Water Framework Directive. Since the law of 16 December 1964, a fundamental aspect of the regulation is to make discharge standards subject to the conditions of use of water but also to the capacity of self-purification and the biological balance of the receiving environment. In order to establish clear and accessible rules for all water stakeholders, the concept of the quality objective of the receiving environment has been developed.Example of Burgundy:- The circular of 17 March 1978 prescribed the drawing up of quality objective maps in all departments. After consultation with all stakeholders, prefectural decrees indicated the situation of each section of the main watercourses (period 1980-1985) and the quality objective assigned to each.- In 1996, the development of the SDAGEs made it possible to redefine the objectives in the light of the new knowledge on the quality of watercourses and the requirements of the 1992 Act. In Burgundy a few sectors have seen their objectives re-evaluated.- In 2003, quality objectives remain the reference for developing discharge authorisations, even if they are essentially based on concentrations of organic and oxidable matter. However, the transposition of objective classes on the basis of the water-system quality classes allows a larger number of parameters to be taken into account. However, the implementation of the Water Framework Directive will quickly require a review of the scheme, as all media now have to reach the right condition in 2015. this mechanism no longer exists since the Water Framework Directive (WFD) Extends to the outer limits of the department.