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Next Phase of Construction Underway at the Deloro Mine Site

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Next Phase of Construction Underway at the Deloro Mine Site

Ontario Protecting the Environment, Creating Jobs

Ontario is taking the next step towards completing the cleanup of the Deloro mine site, which will protect water quality in the Moira River while creating up to 30 jobs in the area.

This phase of the project includes building an engineered cover in the industrial area of the former mine. Previous work at the site included sealing abandoned mine shafts, treating contaminated groundwater, and reducing the amount of arsenic going into the Moira River by 80 per cent.

The goal of the cleanup is to isolate and contain the historical waste, which includes arsenic and low-level radioactive material, under two engineered covers and in an engineered containment cell. The first cover was completed in 2012.

Protecting the environment will enhance the quality of life for Ontario families and ensure a dynamic, green economy for future generations. This is part of the government's plan to invest in people, invest in infrastructure and support a dynamic and innovative business climate.

Quick Facts

  • A construction contract has been awarded to Tervita to build the engineered cover in the industrial area, which is scheduled to be completed in 2016.
  • The Deloro mine site is a 202-hectare abandoned mining, refining, and manufacturing site that was used for about 100 years.
  • Ontario assumed responsibility for the site when the owner did not comply with orders to stop pollution and abandoned the site.
  • At the end of the project, the site will be a closed, controlled hazardous waste facility. It will not accept outside waste.

Additional Resources


“This is a significant milestone for this major mine and industrial waste cleanup project. The cleanup is making good progress and the province is looking forward to finishing the job of protecting the Moira River.”

Jim Bradley

Minister of the Environment

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