Dataset - CKAN MobiDataLab

BRO - Groundwater Monitoring Well (GMW) under INSPIRE

This dataset contains data on groundwater monitoring wells from the Basic Register Subsoil (BRO), harmonized to the INSPIRE dataset specifications for hydrogeology. A...
BRO - Groundwater monitoring in conjunction (GM)

The Interconnected Groundwater Monitoring dataset contains groundwater monitoring wells in combination with data from the other registration objects in the groundwater...
- http://publications.europa.eu/resource/authority/file-type/WMS_SRVC
- http://publications.europa.eu/resource/authority/file-type/ATOM

You can also access this registry using the API (see API Docs).