Summary

• The North Bay Parry Sound District Health Unit officially stopped testing water at public beaches.
• In place of testing, the health unit is updating public signage to warn swimmers of risks of heavy rainfall, murky water and large numbers of birds congregating — things that deteriorate water quality.
• Researchers and advocates argue beach water monitoring is important, especially as climate change makes cooling off in the water more necessary — and more hazardous, thanks to algal blooms and pathogens.

Kevin Marois wasn’t aware that the health unit spanning North Bay and Parry Sound, Ont., had stopped testing the water at local swimming spots.“I don’t think it’s a good decision,” Marois told The Narwhal after learning about it on a hot June day at Shabogesic Beach in North Bay. “Not having the information on water quality is the main [concern],” he said as he came out of the water, “And we know that there are problems with water quality during the summer.”

There were six harmful algal bloom events in the health unit’s area in 2025, and more than a dozen in 2024.

After announcing its plans earlier this year, the North Bay Parry Sound District Health Unit has officially stopped testing water at public beaches as of this summer. 

In its place, they’re offering public signage, which the health unit says will warn beachgoers to assess risks from recent heavy rainfall, visibly murky water or large numbers of birds in the water — all things that alter water quality and can make swimming unsafe due to high levels of E. coli or harmful algae.

Despite the updated signage, those who study beach water safety in Canada say ceasing testing could impact people’s ability to make informed decisions about safe swimming this summer. 

Meanwhile, researchers have argued a warming climate in Canada, including more severe summer heat waves, means swimmable water for people to cool off in is more important than ever. 

“We see changing climate patterns, we see urban heat island effects, we see heat domes, we see that there’s a tremendous need for community cooling spaces,” said Gregary Ford, vice-president and Lake Ontario Waterkeeper at Swim Drink Fish, an environmental non-profit that advocates for safe, usable water bodies. Its name comes from signs often posted on shorelines in Canada: no swimming, no fishing and no drinking. 

Ford explained that warmer temperatures and extreme weather events — a part of climate change, which is primarily driven by the burning of fossil fuels — also contribute to more harmful algal blooms and other pathogens that affect the health of the water and people who use it.

Health unit says water testing is resource-intensive and too slow

In March 2026, the North Bay health unit, which also covers Kearney, Nipissing and South River, sent a letter to member municipalities saying sampling the area’s 60 public beaches was too resource-intensive, and lab results took three or four days, limiting their usefulness when water conditions change quickly. The health unit also argued that the risk of illness from water recreation in the region is low. The water was only tested about three times each summer, it said.

Last year, Public Health Sudbury and Districts, a region which includes Manitoulin Island and French River, ended routine water sampling as well — one of many cuts made after the medical officer of health said their funding has not kept pace with inflation.

“Obviously, there are growing pressures on municipalities and public health units … and so we understand that compromises have to be made, but not in something that affects public health,” Ford said. “This is a trend that we see during periods of economic stress and strain … Unfortunately, as these scalebacks start happening, the public is left with less information about their water and, honestly, that becomes the most important part.”

Swim Drink Fish aggregates data from across swimming spots in North America into an app called Swim Guide. But these helpful third-party tools rely on local data collected by public health departments.

“It’s really important that municipalities also provide historical data, even if they’re not sampling today. They should at least publicly make available the data and information that has been collected over the last five years, the last 10 years, so people can still make a somewhat informed decision about where they spend their time,” Ford said. That’s not something made available by the North Bay Parry Sound Health Unit, either.

There are options for protecting beachgoers, but they can’t replace testing: experts

A recent study from Toronto Metropolitan University, which surveyed 4,085 beachgoers at seven beaches in Canada between 2023 and 2025, found that about 2.6 per cent of swimmers reported becoming sick, with children and elderly people facing higher risk of “recreational water illness,” such as stomach issues, ear and eye infections or rashes.

Ian Young, principal investigator on the Canadian Beach Cohort Study, tracking recreational water illness across Canada, said despite that low risk, “having a solid monitoring plan is important to give people confidence in the beach.”

He pointed to other methods being used across the country to help combat the slow, unreliable nature of current testing. For example, at Bluffer’s Park Beach in Scarborough, Ont., the City of Toronto implemented a bird management program, involving removing sources of food and training dogs to spur geese into flight, once they realized a substantial amount of the E. coli in the water at the beach was caused by birds.

Ford, from Swim Drink Fish, has seen other solutions; municipalities like Kingston and Hamilton are trying out new technology that alerts citizens in real-time when sewers and sewer bypasses are overflowing and contaminating beach water. But, he said, this does not replace the need for monitoring.

“It is a far second in terms of a solution. The best solution is to be continuing and continuously monitoring these beaches,” Ford said. “Resources can be stretched thin at times. This is a public health interest, it is a tourism interest and it is an individual health and wellness interest as well. So, this should be a priority for public health units, and it’s disappointing to see some of these decisions that are being made.”

To help mitigate risk, North Bay’s health unit recommends swimmers wash or sanitize hands before eating after swimming, towel off well to help prevent swimmer’s itch, check for hazards before entering the water and avoid getting water in their mouths.

But North Bay resident Ashley Brooker, standing at the shore of Lake Nipissing, said she still doesn’t feel good about the testing changes. “I am a risk-taker, but that doesn’t mean that I want to risk getting sick or catching something,” she said. “Safety is a big thing, and if we’re putting our tax money into something then we should be getting the resources back.”

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