What are the environmental concerns about Ontario Place redevelopment?

The primary concern is the potential for raw sewage discharge into Lake Ontario due to alterations in the sewer overflow system.

Who is raising concerns about the Ontario Place plans?

Advocacy groups like Ontario Place for All, local politicians, and health professionals are voicing concerns.

What health risks are associated with the potential sewage discharge?

Raw sewage can introduce dangerous bacteria, viruses, and parasites like E. coli into the water, posing a public health risk.

Home / Environment / Ontario Place Sewage Fears Erupt

Ontario Place Sewage Fears Erupt

18 Dec, 2025

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Summary

Plans may involve dumping raw sewage into Lake Ontario.
Health risks from bacteria and viruses in sewage are a concern.
Critics question transparency of the provincial government's plans.

Environmental concerns are surfacing regarding the Ontario provincial government's redevelopment of Ontario Place. Advocates and a Toronto doctor are warning that the plans may involve discharging sewage into Lake Ontario. The province intends to alter an existing sewer overflow system as part of a luxury spa development led by Therme.

This sewage change aims to prevent pollution of a future public beach, but critics fear it will instead contaminate the West Channel of Lake Ontario. A local doctor highlighted the potential public health crisis, emphasizing that raw sewage contains dangerous pathogens like E. coli and salmonella.

Activists accuse the provincial government of a lack of transparency, citing a quietly posted and withdrawn notice on the environmental registry. While the government states interim work is underway to move discharge away from public areas, questions remain about the long-term solution and environmental impact.

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