Great Lakes
DataStream

An open access hub for sharing water data

Our mission is to promote knowledge sharing and advance collaborative water stewardship

Explore Data

Explore Monitoring Results

One-click visualizations make monitoring results easier to understand.

Explore Data

Animated demo of DataStream

Stories and Announcements

Island in the middle of a river next to a highway

Water Program Manager joins DataStream team!

We were thrilled to recently welcome Aislin Livingstone, Water Program Manager, as part of the growing DataStream team.

Keep ReadingWater Program Manager joins DataStream team!  
Island in the middle of a river next to a highway

2022: DataStream's Year in Review

See what we've been up to this year in our 2022 highlights video.  

Keep Reading2022: DataStream's Year in Review  

View all stories

A boat on the water surrounded by mountains

Better Data Means Better Decisions

Communities can drive the data-to-policy cycle. Great Lakes DataStream is designed to support this.

About DataStream

Monitoring Groups

Monitoring Groups

Communities are connected to their waters and best-placed to see changes as they happen.

Open Data

Open Data

DataStream provides a place to store, share, and compare water monitoring data across watersheds.

Interpretation & Knowledge

Interpretation & Knowledge

Open data advances scientific knowledge, supports collaboration, and fuels innovation.

Policy & Action

Policy & Action

Knowledge can be translated into action to protect the health of watersheds on which we all depend.

Great Lakes DataStream at a Glance

DataStream brings water monitoring information together so it’s open, accessible and usable.

52

Monitoring Groups

8,480,239

Unique Measurements

21,706

Monitoring Sites