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

Lilian bending over while ankle deep in a lake --- Lilian se penche alors qu'elle plonge dans un lac jusqu'à la cheville

Meet our team: Lilian Tran

As part of our ongoing staff feature series, we are thrilled to profile DataStream’s Operations Coordinator, Lilian Tran!

Keep ReadingMeet our team: Lilian Tran  

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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.

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Monitoring Groups

8,557,343

Unique Measurements

22,618

Monitoring Sites