Ontario Parks public shorelines are now available for swimming activities
In Ontario Parks, the safety of public beaches is a priority. To ensure this, the water is regularly monitored for the presence of blue-green algae, and more importantly, the levels of E. coli bacteria.
The Ontario Ministry of Health and Long-Term Care follows recreational water quality guidelines that use E. coli levels to determine beach water safety. When E. coli levels exceed 200 colony forming units (CFU) per 100 milliliters of water, swimming advisories or postings are triggered. This threshold is considered unsafe for human health.
This guideline aligns with provincial and federal standards on recreational water quality. When swimming advisories are issued, it is strongly advised to avoid entering the water due to the increased risks of skin, eye, ear, throat infections, and stomach illnesses.
Factors such as heavy rainfall, waterfowl presence, and large numbers of swimmers can cause rapid changes in water quality. Therefore, it's essential to stay informed about the water quality status of your chosen beach.
In the event that E. coli levels exceed the safety threshold, advisories and postings are issued to warn the public to limit or avoid water contact. The key water quality guideline for swimming in Ontario Parks is that E. coli must remain below 200 CFU/100 mL for safe swimming.
It's important to note that high levels of E. coli may indicate the presence of other harmful organisms, some of which can cause a variety of illnesses, ranging from stomach cramps, diarrhea, and vomiting to skin rashes, eye, ear, nose, and throat infections. Blue-green algae, which is also monitored at public beaches, can be highly toxic to humans, dogs, and other animals.
For more information about water quality in Ontario Parks, data is provided by Ontario Parks, and health units associated with the beaches. Stay informed, stay safe, and enjoy your time at the beach!
- In Toronto's outdoor-living spaces such as the parks, one should be mindful of the water quality to maintain good health.
- This summer, while tending to your home-and-garden, consider visiting an Ontario Park to enjoy the lifestyle benefits of nature, but remember to check the water quality before swimming.
- As you bask in the lifestyle offered by the courtyards of Toronto, be vigilant of the weather forecasts and water quality guidelines, as heavy rainfall can potentially increase E. coli levels in recreational bodies of water.
