Another busy month! This month Water Testing Weekend is 28th – 31st August Please test between Friday 28th and Monday 31st August, and don’t forget to upload your results! With […]
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
Good News! Shipping to the United States: an update on the August 19 tariff changes
Image by Freepik Back in March, we wrote about how cross-border shipping and tariffs work for our U.S. customers. Trade policy keeps moving, and starting August 19, new tariffs of […]
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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:
