Data quality of surface waters of Brittany

Attention! for reasons of volume and loading time, this layer is only visible at scales larger than the 1/50 000°!
Results of surface water analyses in Brittany. These data are derived from the following producers: watersheds, DREAL, DDT. The analytical networks correspond to the DCE networks (European Framework Directive), CORPEP for the specific study of pesticides, and networks located at watershed level. The parameters sought are physico-chemical.
The nomenclature and codification are based on the national water data and reference framework (SANDRE), available at http://www.sandre.eaufrance.fr/