STEP 1. Initiate Process  
STEP 2. Learn More What's New?
STEP 3. Preliminary Assessments Contact the NWMO
Site Selection Process
Step 1
Initiate Process
Step 2
Learn More
Step 3
Preliminary Assessments
What's New? Contact the NWMO

Step 3. Preliminary Assessments >> NWMO Concludes Preliminary Assessments in Arran-Elderslie and Saugeen Shores


In January 2014, the Nuclear Waste Management Organization (NWMO) concluded its preliminary assessment work in the communities of Arran-Elderslie and Saugeen Shores. Early findings indicate both have very limited potential to meet the geoscientific criteria required to host a deep geological repository for used nuclear fuel. Safety, security and protection of people and the environment are central to the NWMO siting process.


The NWMO has identified the Ordovician Cobourg Formation at a depth of 500 metres as the preferred host rock for a repository, should it be located in the Bruce region. Arran-Elderslie does not contain enough of this geology at the preferred depth. Saugeen Shores contains a number of constraints that greatly reduce the prospect for finding areas that are large enough for hosting the repository’s surface and underground facilities.


The NWMO advised Mayors Paul Eagleson of Arran-Elderslie and Mike Smith of Saugeen Shores of its decision to cease preliminary assessment work in their communities. The NWMO is committed to providing early feedback to communities in a timely way as key findings in its studies emerge.


It will take several more years of detailed technical, scientific, and social study and engagement before a preferred safe site for a used nuclear fuel repository can be confirmed.


Letter to Mayors of Arran-Elderslie and Saugeen Shores RE: Step 3 Interim Findings

Technical Memorandum - Interim Results of Geoscientific Preliminary Assessment, Sedimentary Sites, Southern Ontario

Integrated Preliminary Assessment Report - Arran-Elderslie

Integrated Preliminary Assessment Report - Saugeen Shores

Phase 1 Geoscientific Desktop Preliminary Assessment of Potential Suitability for Siting a Deep Geological Repository

Phase 1 Geoscientific Desktop Preliminary Assessment, Terrain and Remote Sensing Study

Geoscientific Desktop Preliminary Assessment, Processing and Interpretation of Borehole Geophysical Log and 2D Seismic Data

Geoscientific Desktop Preliminary Assessment, Processing and Interpretation of Geophysical Data



Recognizing Community Leadership

Twenty-One Phase 1 Assessments Completed



Two Phases of Study
How is a Feasibility Study Undertaken?
Phase 1
Completed Assessments
Recognizing Community Leadership
Acknowledging Aboriginal Contributions
Phase 2
Completed Studies
Recognizing Communities
Study and Engagement
* Technical and Safety Assessments
* Community Well-Being, Interest, and Potential for Willingness
* Transporting Used Nuclear Fuel
* Airborne Geophysical Surveys
* Observing General Geological Features
* 2-D Seismic Surveys in Sedimentary Rocks
* Borehole Drilling in Sedimentary Rocks
* Detailed Geological Mapping
Preliminary Assessments - More Information
Assessing Potential Suitability - Feasibility Studies
Resources Available to Communities
Geoscientific Review Group
Consortium Approach
Community Profiles
Community Liaison Committees


Contact Us
Nuclear Waste Management Organization
22 St. Clair Avenue East, Sixth Floor
Toronto, Ontario
M4T 2S3 Canada
Tel: 416.934.9814
Toll Free: 1.866.249.6966
Fax: 416.934.9526
Email: contactus@nwmo.ca




Nov-25-2015 03:14:35 PM EST

© 2010 Nuclear Waste Management Organization