All water data sources
FreeGovernmentUnited States, North America

EPA EnviroAtlas Interactive Map

US Environmental Protection Agency multi-extent interactive environmental map with broad-scale data for the lower 48 states and fine-scale data for selected communities, including water contaminants, ecosystem services, and environmental indicators

epa.gov

At a glance

Region
United States (North America)
Coverage
Lower 48 US states with fine-scale community data
Access
Free
Category
Government
Last updated
2025

What's inside

  • Water Quality
  • Environmental Indicators
  • Contaminant Mapping
  • Ecosystem Services
  • Community Data

What you can do with it

Typical work that data of this type supports.

  1. 01

    Hotspots and trends

    Find where contamination is high and whether it is getting worse.

    Because it has: Water Quality

  2. 02

    Compliance checks

    Compare samples against drinking water and discharge standards.

  3. 03

    Sampling plans

    Decide where to sample and treat first.

Where AI adds value

Ideas for machine learning and AI agents built on this kind of data.

  1. 01

    Risk maps

    Predict contamination where no samples exist, from geology, land use and climate.

  2. 02

    Anomaly alerts

    Catch sudden spikes in sensor or lab data automatically.

  3. 03

    From satellite

    Estimate turbidity and chlorophyll in lakes and rivers from imagery.

Machine access and documentation

Open API

EnviroAtlas WMS/ArcGIS REST services

Licence: Public Domain

Listed in our registry of open water APIs, which WaterDataGPT can query live.

All water data sources in the United States

Find more water data

Search and compare 1,900+ water data sources by region, type and access.