All water data sources
FreeGovernmentUSA, United States
EPA Safe Drinking Water Information System
Public water system compliance data
sdwis.epa.gov
At a glance
- Region
- USA (United States)
- Coverage
- 150,000 public water systems
- Access
- Free
- Category
- Government
- Last updated
- 2025
What's inside
- Drinking Water Quality
- Compliance
- Violations
- Public Health
What you can do with it
Typical work that data of this type supports.
- 01
Coverage gaps
Find who lacks safe water or sanitation.
Because it has: Drinking Water Quality
- 02
Benchmarking
Compare utilities on service and losses.
- 03
Hotspots and trends
Find where contamination is high and whether it is getting worse.
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Failure prediction
Predict pipe bursts and plant failures before they happen.
- 02
Demand forecasts
Forecast daily demand for pumping and storage.
- 03
Risk maps
Predict contamination where no samples exist, from geology, land use and climate.
Related water data
- Bureau of Reclamation HDBUnited States | Free
- California Data Exchange CenterUnited States | Free
- NCAR CAMELS Hydrometeorological DatasetUnited States | Free
- NOAA National Water ModelUnited States | Free
- NOAA National Water Prediction ServiceUnited States | Free
- NRCS SNOTEL NetworkUnited States | Free
Find more water data
Search and compare 1,900+ water data sources by region, type and access.