EWG National Nitrate Analysis Interactive Map
Environmental Working Group interactive map showing locations of large and very large US community water systems that detected nitrate at or above 5 mg/L between 2017-2019, with system-level contamination data
ewg.org
At a glance
- Region
- United States (North America)
- Coverage
- Large and very large US community water systems
- Access
- Free
- Category
- Non-Profit
- Last updated
- 2024
What's inside
- Nitrate Contamination
- Drinking Water Quality
- Community Water Systems
What you can do with it
Typical work that data of this type supports.
- 01
Hotspots and trends
Find where contamination is high and whether it is getting worse.
Because it has: Nitrate Contamination
- 02
Compliance checks
Compare samples against drinking water and discharge standards.
- 03
Coverage gaps
Find who lacks safe water or sanitation.
Because it has: Drinking Water Quality
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Risk maps
Predict contamination where no samples exist, from geology, land use and climate.
- 02
Anomaly alerts
Catch sudden spikes in sensor or lab data automatically.
- 03
Failure prediction
Predict pipe bursts and plant failures before they happen.
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