River Catchment boundaries in all of the island of Ireland

The EU Water Framework Directive (2000/60/EC) (WFD) establishes a framework for the protection, improvement and management of surface waters and groundwaters. A new WFD lake catchment layer was created in 2022. New lake catchments were delineated for every WFD lake from the outflow up to very farthest source, i.e. the whole catchment. If multiple lakes exist along the same river system, their catchments overlap.

The EU Water Framework Directive (2000/60/EC) (WFD) establishes a framework for the protection, improvement and management of surface waters and groundwaters. A new lake catchment layer of unnested WFD lake catchments was delineated in 2022. For every WFD lake water body, an un-nested lake catchment was delineated from the outflow up to the next upstream WFD lake (as taken from lake waterbodies layer).