That’s the feeling we carried home from Winnipeg, where we spent the week at IAGLR, the International Association for Great Lakes Research conference, and hosting our very first event of […]
Better water decisions start with better data.
Water Rangers provides the tools and open data platform that turn water data into action for healthier rivers and lakes. Together we’re building a shared picture of freshwater health!
Here's how it worksHelping you and your community...
Test water quality
Use our simple tools to test water chemistry and bacteria like E. coli to answer your questions.
Browse our testing equipmentShare your data openly
View and share water monitoring results on our free open data platform.
How to use our data platformAct to protect water
Use shared knowledge to understand your water and take action to protect it.
Explore our knowledge hub306
organizations
458
datasets
9,352
locations
71.7K
observations
577.5K
datapoints
3,344
data contributors
A free, open platform built for community water data
Water Rangers hosts a free platform where communities share water monitoring data from around the world. Explore observations, track changes in waterways, or contribute results from your own monitoring. Every observation is carefully structured with rich metadata so it can connect to larger water data systems and support real decision-making.
Explore the dataCommunity water testing for lakes and rivers
Educational resources: Teaching kits and resources for learning how water monitoring works.
Explore tools
Freshwater data gap
In many places, we simply don’t know. Across much of the world, waterways lack enough monitoring data to understand whether they’re healthy. In Canada alone, more than 75% of sub-watersheds are considered data-poor. Through projects like the Watershed Reports in Canada, collaborations like CaSTCo in the United Kingdom, and our open data platform, Water Rangers is helping communities and researchers build a clearer picture of freshwater health.
Explore the Canadian Watershed ReportsLatest news
May news from the UK
Thank you to all our volunteers who carry out monthly chemistry testing, upload data, and deliver E. coli samples to the lab! Your help during packing parties and everything else keeps […]
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An award-winning non-profit organization
Over the years, we've been awarded for our innovation and community-building. Here are a few of our accolades:
