Evolution of the global state by category and nature of surface water bodies A.C. of the Basque Country.

Monitoring the status of surface water bodies is managed by the Basque Water Agency, through several programs aimed at monitoring the ecological and chemical status of rivers, transitional waters, coastal waters and inland wetlands of the Basque Country. More information on the https://www.euskadi.eus/web01-s2ekono/es/contenidos/informacion/estatistika_ing_090214/es_def/index.shtml departmental statistical portal.