DINOloket - DINO/BRO Subsurface and Groundwater Database (Netherlands)
TNO Geological Survey of the Netherlands clearinghouse holding over 100 million groundwater readings from ~23,000 monitoring wells, plus borehole, CPT and geophysical data. Public data viewable and downloadable free; also exposes the BRO (Key Register of the Subsurface) data.
dinoloket.nl
At a glance
- Region
- Netherlands (Europe)
- Coverage
- National
- Access
- Free
- Category
- Government
- Last updated
- 2026
What's inside
- groundwater levels
- borehole logs
- monitoring wells
- subsurface models
- geology
What you can do with it
Typical work that data of this type supports.
- 01
Trend hotspots
Find where water tables are falling year after year.
Because it has: groundwater levels
- 02
Recharge planning
Site recharge structures and new borewells with evidence.
- 03
Storage tracking
Follow storage and releases through the season.
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Gap filling
Rebuild missing well readings from neighbours, rainfall and season.
- 02
Level forecasts
Forecast pre- and post-monsoon levels well by well.
- 03
Storage from space
Estimate volume from satellite water area and altimetry.
Machine access and documentation
Open API
DINOloket and BRO REST web services for programmatic access to registration objects
Licence: Open data
Listed in our registry of open water APIs, which WaterDataGPT can query live.
Related water data
- Databank Ondergrond Vlaanderen (DOV) - Flanders, BelgiumEurope | Free
- DINOloket: Subsurface Data of the Netherlands (TNO-GDN)Europe | Free
- GEUS Jupiter National Well Database (Data og kort)Europe | Free
- GRUVO - Groundwater Levels and Forecasts for Germany (BGR)Europe | Free
- BGS WellMaster Hydrogeological Database (UK)Europe | Limited
- Czech National Open Data Catalogue (NKOD) - Groundwater DatasetsEurope | Free
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