Calling all water lovers!

This summer, become a Water Rangers tester for the Lake Ontario Watershed. You get a water quality testkit to learn about and protect waterways.

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Apply by Sunday June 24 at Midnight

Become a citizen scientist, conduct water quality sampling and learn about issues affecting waterways this summer!

Monitoring regularly leads to greater protection of our waterways, both directly and indirectly (the ‘why’ here). We’re conducting important research on how participating in citizen science creates valuable data for scientific research and that it changes perceptions and behaviours. If you love water and want to learn more about water quality, you might just be a candidate to get one of our kits and become a Water Ranger!


  • Live near Lake Ontario
  • Have regular access to fresh water (lake, river or stream) from July – October
  • Are part of a community who is interested in learning about water stewardship

The challenges:

  1. Pick-up your testkit, get trained and make a testing plan
  2. Conduct your first water test
  3. Conduct water quality testing over time, conducting a minimum of 10 samples
  4. Become a Water Rangers Trainer
  5. Appreciate wildlife & nature
  6. Look out for invasive species

Apply now!

How it works:

  • Apply by June 24. You will be notified by June 27 if you were successful
  • Late June/Early July you will attend either an in-person training session (or online) where you will receive a water quality kit, how to train it, and will go over the program in more detail
  • Water quality testing includes tests for: temperature, pH, hardness, alkalinity, water clarity, dissolved oxygen. Learn more about the testkit
  • Complete fun photo challenges, water quality testing, etc. throughout the summer
  • You will get email reminders and check-ins. Most challenges will be released every 2 weeks, and will give you tips on how you can make it fun for you and your family/friends/community.
  • Learn from expert videos and share photos to help inspire those around you

You’ll be getting over $350 worth of supplies to help you throughout the summer, so we’re looking for people who are committed. Groups or individuals can apply to become one of 10 Water Rangers.  Examples of community groups include: Community organizations, Lake Associations, Youth Groups, Clubs, informal friend groups, etc.


More about the program

Water Rangers’ water quality kits were designed for both experienced and inexperienced water quality monitorers. The tests teach you about water health indicators. Regardless of background, we want to encourage more water lovers to become stewards of Ontario’s waterways. Canadians are proud of our fresh water, and so we want to give more people the chance to learn about and protect this precious resource. Last year, we had 17 groups who taught us a lot about how to support new water stewards. This is a continuation of that program!

There are 10 kits available for those willing to commit to these challenges! Everyone will also have access to online training and a field guide with instructions on how to conduct tests within their kit.

Julie Lachapelle, one of our favourite testers, shows off the conductivity test

The tests:

  • Give you results in the field, right away
  • Are easy-to-use (most tests are for all ages, and the dissolved oxygen test can be done with anyone 9+)
  • Can be completed in 5-10 minutes
  • Are relatively inexpensive
  • Give you a general idea on water’s health
  • Teach you about the scientific method
  • Are the most accurate we can find (we won’t let you do a test where your results are meaningless, and we compare your tools to those by professional probes)

Each kit contains…

  • Thermometer (air temperature)
  • Secchi disc (water clarity, water depth)
  • Test strips (pH, alkalinity, hardness; learn more here)
  • Conductivity meter (conductivity, water temperature)
  • CHEMet Dissolved Oxygen test
  • Sample container
  • Field sheets
  • Waterproof phone case
  • Whirly bags
  • ‘Suspect pollution’ collection kit
  • Field guide
  • Reacher stick

Explore the kit

Please note that the tests aren’t good enough to determine if water is safe for swimming or drinking (you need a lab for that). We are working with scientists to test new tools all the time, and those participating in this program may have the opportunity to help us with some new tests!


Important dates

  • Sunday, June 24 at midnight EST: Deadline to apply.
  • Wednesday, June 27: Find out if you have been chosen!
  • Wednesday, June 27 – Friday June 29: Get your testkit (or arrange for a drop-off location) and get trained (you can also pick-up your testkit and attend online training over the following week). Depending on where people are based, we will arrange for drop-off and training, focused on giving you the chance to learn how to conduct tests, create your testing plan and get excited about your challenges!
  • End of June until October: Depending on when you can get out, you and your group will conduct monthly tests throughout the summer. Every few weeks, you’ll be encouraged to participate in an effort to create a snapshot of your area through water testing and other mini challenges. You will also have opportunities to participate in community challenges and earn prizes!

Apply now!

On White Lake, where Melissa Dakers from Watersheds Canada helped us compare our kit to 2 professional probes

You’ll become part of a bigger network of Water Stewards

We want you to benefit from their expertise and help them better protect our waterways.

Near Toronto? Meet the Lake Ontario Waterkeeper!

Any group or individual who is in the region will be encouraged to learn more about the Lake Ontario Waterkeeper. These amazing water lovers are protectors of our watershed. They will be able to support you if you discover issues in your regions. They also have lots of other ways you can get involved in water stewardship, too, like their Watermark Project, and Swim Guide.

Also on your side, the conservation authorities!

We have partnerships with Rideau Valley Conservation Authority (RVCA) and Mississippi Valley Conservation Authority (MVCA) and friends at South Nation Conservation Authority (SNVA) and Cataraqui Conservation Authority. We are making friends with more conservation authorities in the Lake Ontario Region, and can help you connect with them. These incredible agencies have other programs you might be interested in, and can help you with rules in your region.

In another part of Ontario?

That’s not a problem– we can help you connect you to local organizations that can give you on-the-ground support as needed. These kits are specifically for those near Lake Ontario, though.

What if I’m not in Ontario?

Unfortunately this program is for Ontario residents near Lake Ontario. We wish we could give every group a kit because we believe that by learning about water, we all become more passionate about protecting it. These 10 kits are only available to groups and individuals in Ontario, because of the funding goals. But, if you’re in another area, you can buy a kit, or apply anyway and we will keep you in mind when we get additional funding.

If you or your organization are looking to write a grant to get some testkits, let us know and we can help!

Want to know more?

Thank you to the LUSH Charity Pot for supporting this program. If you have any further questions about this program or anything we’re doing please contact us. We’ll be happy to help!



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