1992-Present:

This project is designed to address the historic waste sites identified along the NTR.  The NTR extends from the Port Radium Mine site on Great Bear Lake, via a 2,100-kilometre system of lakes and rivers (including Great Bear and Great Slave Lakes, and the MacKenzie, Slave, and Athabaska Rivers) south to Fort McMurray.  Along the NTR many contaminated sites were identified and remediated. Ongoing monitoring and investigation continues to confirm the need for more work in the future. Communities in the Northwest Territories along the route where historic radioactive waste sites were found include Fort Smith, Fort Fitzgerald, Tulita and Hay River. In the early 1990s, the LLRWMO identified 20 contaminated sites along the NTR.

In 1991, initial surveys of transfer points were complemented by further investigations each year until 1996. During the period of 1993-2003, approximately 42,500 m³ of uranium-contaminated soil was removed from nine sites in Fort McMurray and consolidated into one local engineered storage mound.  

In 2004, the LLRWMO conducted a radiological characterization program in the South Slave section of the NTR indicating further subsurface work was required.

In 1996, the LLRWMO conducted remediation on a residential property in Tulita and removed the material to a temporary storage mound in the community.

Late summer 2006, the LLRWMO carried out work in Tulita, NWT involving packaging of uranium-impacted soil into approximately 755 (1m³ each) bulk bag containers for the transfer to the former Port Radium mine site on the eastern shore of Great Bear Lake. This is part of the remedial work at the Port Radium site planned by Indian and Northern Affairs Canada (INAC).