All water data sources
FreeGovernmentUnited States
Lithologic Database Portal
Geological and lithologic data for groundwater modeling
ngmdb.usgs.gov
At a glance
- Region
- United States
- Coverage
- National geological database
- Access
- Free
- Category
- Government
- Last updated
- 2025
What's inside
- Lithologic Logs
- Geological Maps
- Stratigraphic Data
- Rock Properties
- Hydrostratigraphy
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.
- 02
Recharge planning
Site recharge structures and new borewells with evidence.
- 03
Water budgets
Estimate draft and recharge for a block, district or basin.
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
Stress mapping
Combine wells with satellite gravity and rainfall to map aquifer stress.
Related water data
- FEMA National Flood Hazard LayerUnited States | Free
- National Groundwater Monitoring NetworkUnited States | Free
- NHDPlus High ResolutionUnited States | Free
- NOAA Atlas 14 Precipitation FrequencyUnited States | Free
- US Drought Monitor (USDM)United States | Free
- US Water Quality Portal (WQP)United States | Free
Find more water data
Search and compare 1,900+ water data sources by region, type and access.