Deloro Mine consolidation site remediation

Environmental assessment (EA) start date: January 16, 2003
FEAI reference number: 36265
Proponent: Ontario Ministry of Environment
Location: Deloro, Ontario

Latest update

• August 2019 – The CNSC Designated Officer, pursuant to paragraph 37(2)(c) of the Nuclear Safety and Control Act [1], revoked the Ministry of the Environment, Conservation and Parks’ (MECP) waste nuclear substance licence (WNSL) for the Deloro mine site
• July 24, 2019 – CNSC releases 2018 Independent Environmental Monitoring Program results for Deloro closed mine site
• August 10, 2009 – CNSC announces its decision on the environmental assessment screening report regarding the proposed Deloro Mine Site cleanup project (PDF)
• May 8, 2009 – Request for public comment on the draft environmental assessment screening report (May 8, 2009 to June 8, 2009)
• October 31, 2003 - CNSC announces decision on environmental assessment guidelines for Ontario Ministry of the Environment's Deloro Mine Site cleanup project
• July 3, 2003 – Notice – Public hearing – September 26, 2003 (PDF)
• June 6, 2003 – Request for public comment – Draft environmental assessment guidelines - comment period closed

Project description

The Canadian Nuclear Safety Commission (CNSC) has received notice from the Ontario Ministry of Environment of its intent to apply for a licence to implement plans to complete the remediation of the Deloro Mine site, located near the former Village of Deloro, Ontario. The purpose of the proposal is to provide for the long-term onsite management of contaminated soils and low-level radioactive wastes currently located at and in the vicinity of the Deloro Mine site.

CNSC authorization of the project would be provided through a waste nuclear substance licence (WNSL) under the Nuclear Safety and Control Act for the possession and management of nuclear substances.

Before the CNSC makes its decision on the Ministry's application, an EA must be completed in compliance with the Canadian Environmental Assessment Act. The purpose of the EA is to identify the possible environmental effects of the proposed project, and to determine whether these effects can be mitigated before the project is allowed to proceed.

Steps ahead

• completion of technical studies
• preparation of draft EA screening report
• public consultation on draft EA screening report
• EA decision by Commission

Further information

CNSC maintains a public registry of documents related to its environmental assessments. Lists and copies of documents may be obtained upon request. For questions or information directly related to this environmental assessment, contact the CNSC.

The CNSC regulates the use of nuclear energy and materials to protect the health, safety and security of Canadians and the environment; to implement Canada’s international commitments on the peaceful use of nuclear energy; and to disseminate objective scientific, technical and regulatory information to the public.