ELWAS-WEB: NRW Water Information System
North Rhine-Westphalia water information system displaying and evaluating data on wastewater, groundwater, surface water, drinking water and Water Framework Directive monitoring, with public datasets also released via OpenGeoData.NRW.
elwasweb.nrw.de
At a glance
- Region
- Germany (Europe)
- Coverage
- North Rhine-Westphalia, Germany
- Access
- Free
- Category
- Government
- Last updated
- 2026
What's inside
- groundwater
- surface water
- water quality
- wastewater
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
- 02
Recharge planning
Site recharge structures and new borewells with evidence.
- 03
Storage tracking
Follow storage and releases through the season.
Because it has: surface water
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.
Related water data
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- GKD Bayern - Bavarian Hydrological Service (Water Quality)Europe | Free
- LANUK NRW - Fachinformationssysteme Wasser (ELWAS)Europe | Free
- ARSO Slovenia WaterEurope | Free
- data.europa.eu - Detection of Pesticides in WatersEurope | Free
- Fanack Water MENA PortalMiddle East | Free
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